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811	Material Engineering	ABS-1052
FRACTURE CHARACTERIZATION WITH FIELDWORK DATA AND ITS IMPLICATION FOR BASEMENT FRACTURE RESERVOIR AT MUARO SILOKEK GRANITIC OUTCROPS Wildan Tri Koesmawardani*1, Benyamin Sapiie2, Alfend Rudyawan2 1Geological Engineering Department, Universitas Trisakti 2Geological Engineering Department, Institut Teknologi Bandung Abstract The Muaro Silokek Area is a location that is quite complex in geological structure and consists of granitic rocks which vary in mineral composition, so it’s fit to do fieldwork for fracture characterization for analog basement fracture reservoir. This research was continuance of previous study about granitic basement fracture at around Sumatra, now espacially with fieldwork data. The aim of the study is to determining fracture atributes like fracture spacing, fracture aperture, fracture length with total 2700 cm scan line and 490000 cm² area of widows scan in five location damage zone and relate with fracture reservoir. The result shows generally shear fracture have three main orientation, there were NE – SW, NNW – SSE, ENE – WSW and NNE – SSW, W – E, NW – SE for joint orientation. There were three types of granitic, namely syeno granite, alkali feldspar granite, and monzo granite shows each type of granite has a different response of fracture intensity and fracture density. Statistically, fracture porosity and permeability result shows linier data distribution with cubes calculation methods. This fracture permeability has exponential data distribution with fracture aperture. Keywords: Fieldwork, scan line, windows scan, fracture porosity, fracture permeability Share Link | Plain Format | Corresponding Author (RINI S DGM)

812	Material Engineering	ABS-542
Galvanized + Graphene Oxide + Aluminum Waste Powder Characteristics for Coating on Medium Carbon Steel Prantasi Harmi Tjahjanti (a*), A’rasy Fahruddin (a), Iswanto (a), Rachmat Firdaus (a), Zyahdo Nikri Jofalo (a) (a) Mechanical Engineeering Department Universitas Muhammadiyah Sidoarjo (*) prantasi[at]gmail.com Abstract The aim of this study is to calculate the corrosion penetration rate of penetration of galvanized, graphene oxide and aluminum waste powder coated in low carbon steel. The process used is Hot Dip Galvanizing, where the low carbon steel sample is coated by immersing it in a hot liquid mixture of galvanized, graphene oxide and aluminum waste powder with variation of in temperature and time. Check for corrosion uses the Tafel method which is dipped into a heavy acid solution. The results obtained, the corrosion rate does not exceed the required normal amount (0.5 mm / year). Keywords: Graphene Oxide, Corrosion Penetration Rate, Hot Dip Galvanizing, aluminum waste powder low carbon steel, Share Link | Plain Format | Corresponding Author (Prantasi Harmi Tjahjanti)

813	Material Engineering	ABS-1055
Effect of temperature and time of carbonization on coal-based activated carbon adsorption Suliestyah1,*, Indah Permata Sari2 1Mining Engineering Major, Universitas Trisakti 2Industri Engineering Major, Universitas Trisakti Abstract Coal from Bangko, South Sumatra is a low rank coal which has the potential to be used as activated carbon material. The result of proximate analysis and calorific value of coal shows that Bangko coal is included in the lignite category, with fixed carbon 43.58%, volatile matter 41.1% and calorific value 4915 kal/g. Synthesis of activated carbon from lignite coal was carried out through the carbonization and activation. Carbonization was carried out at several temperature variations, between 400oC - 900oC for 2 hours using airtight steel box under non-oxidizing conditions. While the activation has taken place at 900oC for 60, 90 and 120 minutes using water vapor as an activator. The activated carbon iodine number was determined as an indicator of the coal absorption capacity and its porosity. Synthesized activated carbon at 900oC and 120 minutes shows the highest iodine number, 1274.8 mg / g. This activated carbon has 76.78% fixed carbon, 10.65% volatile matter, 5.91% moisture content and 6.66% ash content. Based on the result, we were concluded that low rank coal like lignite was the potential material to produce high capacity coal based activated carbon. Keywords: activated carbon, proximate analysis, calorific value of coal, Carbonization Share Link | Plain Format | Corresponding Author (RINI S DGM)

814	Material Engineering	ABS-550
Advanced Renewable Materials for Supporting Artificial Insemination Technology Enike Dwi Kusumawati Universitas Kanjuruhan Malang Abstract National meat self-sufficiency program (MSSP), which has been launched since 2000, has been well improved in term of concept, policy instrument, and program management, but the supporting technologies are still as one of some constraints. The study was aimed to metaanalyze comprehensively the frontier technologies supporting the national MSSP, especially advanced materials for artificial insemination technology in order to enhance animal population. The meta-analysis study adopted Wilson and Kelly metaanalysis methods consisting of nine steps. Results of the study showed that (1) there were some frontier advanced tecnologies on animal husbandry in terms of animal feeds and feedstocks, breeding, fattening up, and adding values of main products, by-products and wastes; (2) those technologies consisted of advancing materials dan methods/processs producing them; and (3) particularly, in supporting breeding technology, advanced renewable materials for artificial insemination technologies take important role for significantly enhancing the animal population as well as effectiveness of animal breeding, thus advancing the materials as well as processess involved are highly needed. Keywords: Artificial Insemination; Advanced Renewable Materials; Technology; Animal Population; Meta-analysis Share Link | Plain Format | Corresponding Author (Enike Dwi Kusumawati)

815	Material Engineering	ABS-45
Study Experiment of Tensile Strength and Bending in The PLA material on 3D Printing Process-based Angle Variations Nozzle A.Sifa*, D. Suwandi, T.Endramawan, Y.Fathurrahman, A. A. Rachman Politeknik Negeri Indramayu Abstract 3D Print Process is a printing process that is included in additive manufacturing, a 3D object creation process by adding material that is heated gradually to form the desired object. The purpose of this study is to determine the mechanical characteristics of the 3D process using PLA material to the tensile and bending strength of the 3D Print process with a variation of the nozzle angle 0o, 30o, 45o, 60o, and 90o. The type of 3D Print used the Hypercube 3D Print machine. The results of the tensile test at each angle have different tensile strengths, the maximum tensile strength that occurs at an angle of 0o with a tensile strength value of 923.33389 N and the minimum tensile strength value occurs at an angle of 90o with a tensile strength value of 393,746 N. On the test results bending based on the variation of the nozzle angle 0o, 30o, 45o, 60o, 90o, the bending test results at each angle have different bending strengths, the maximum bending strength results occur at an angle of 30o with a value of 3409,1153 N and the value of the minimum bending strength occurs at angle of 45o with a value of 137.03456 N. Keywords: 3D Print, PLA, Tensile Strength, Bending Strength, Angle Variations Nozzle Share Link | Plain Format | Corresponding Author (Agus Sifa)

816	Material Engineering	ABS-1084
New Innovation Using Sodium LignoSulfonate Surfactant Synthesized from Bagasse to Enhanced Oil Recovery for Light Crude Oil Arinda Ristawati1), Rini Setiati* 2), Aqlyna Fattah Annisa3),Septoratno Siregar 4), Taufan Marhaendrajana 5), Deana Wahyuningrum 6), 1,2,3) Petroleum Engineering Departement, FTKE, Universitas Trisakti, Jakarta, Indonesia 4,5) Petroleum Engineering Department, FTTM, Institut Teknologi Bandung, Bandung, Indonesia 6) Chemistry Department, FMIPA, Institut Teknologi Bandung, Bandung, Indonesia Abstract Surfactant injection using sodium ligno-sulfonate (SLS) from bagasse is one of the innovative efforts with a green chemical process. This surfactant is made from bagasse. With the green chemical process, the bagasse waste is used as an SLS surfactant. Surfactant injection is carried out in an effort to increase the oil recovery to produce the remaining oil, with the mechanism of reducing the interfacial tension (IFT) in the reservoir. There are three types of crude oil used in the surfactant injection test, light crude oil, intermediate crude oil and heavy crude oil. Light crude oil has Carbon number 1-15 ( 40 - 50 oAPI ), intermediate crude oil has a Carbon from 15-50 ( 15 - 40 oAPI ) while heavy crude oil has a Carbon number of more than 50 ( 9 - 15 oAPI ). Each type of crude oil has been tried to inject the surfactant. Surfactant injection using SLS surfactant synthesized from bagasse with Berea cores in the injection process to minimize impurities so that the natural performance can be known. SLS surfactant synthesized from bagasse has a molecular formula (C11H16O8S)n, which means it has element C of 11, element H is 16, element O is 8 and 1 element of S. The symbol n indicates the monomer of the molecular formula of the compound. Core flooding with SLS surfactant synthesized from bagasse resulted in an increase of 10% oil with microemulsion 6% - 10% in light crude oil with carbon number 8.29 which from fields with brine 8,110 ppm, with crude oil from Tempino (Jambi field, Sumatera, 42 oAPI). Use of an intermediate crude oil (Prabumulih field, Sumatera, 30 oAPI) or heavy crude oil (MOI crude oil, from Papua, 10 oAPI) does not produce microemulsion, so use of surfactant injection it is not effective.. Thus the success of surfactant injection with SLS surfactant synthesized successfully depends of the Carbon Number similarity between surfactant and crude oil, so that the carbon number is one indicator of the success of SLS surfactant injection in the EOR. Keywords: carbon number, microemulsion, recovery factor, SLS surfactant, synthesized from bagasse Share Link | Plain Format | Corresponding Author (RINI S DGM)

817	Material Engineering	ABS-1086
The Effect of Middle Phase Emulsion and Interfacial Tension of Sodium Lignosulfonate Surfactant Synthesized from Bagasse to Enhanced Oil Recovery Aqlyna Fatah Annisa1, Rini Setiati1, Arinda Ristawati1, Septoratno Siregar 2, Taufan Marhaendrajana 2, Deana Wahyuningrum 4 1 Petroleum Engineering, FTKE, Universitas Trisakti, Jakarta, Indonesia 2 Petroleum Engineering, FTTM, Institut Teknologi Bandung, Bandung, Indonesia 3 Chemistry, FMIPA, Institut Teknologi Bandung, Bandung, Indonesia Abstract Enhanced Oil Recovery (EOR) is an effort to increase oil recovery after through the primary recovery and secondary recovery. One method used is chemical injection using surfactants. Sodium Lignosulfonate (SLS) is one of the anionic surfactants commonly used in the EOR process. Sodium Lignosulfonate can be made by bagasse synthesis, as an alternative to the use of lignosulfonate surfactants. The purpose of this study was to determine the effect of the middle phase emulsion and interfaccial tension on the recovery factor results. The method used is core injection. The injection fluid used is Sodium Lignosulfonate surfactant which has been tested for its characteristics. This research uses core flood devices and synthesized Berea cores. Coreinjection are carried out in several variations of salinity and surfactant concentration. The results of the study show that the best of the middle phase emulsion and interfacial tension (IFT) occur at low salinity of 10,000 ppm which is capable of forming a 10% middle phase emulsion, with an IFT value of 2.73 mN / m have recovery factor of 9.25%. While at high salinity 40,000 ppm - 75,000 ppm it forms a middle phase emulsion of 6.00% - 8.75% and interfacial tension 2.00 mN / m - 7.60 mN / m reaches a Recovery Factor of 4.40% - 4.74%. Based on this study it can be concluded that the high middle phase emulsion will be of low interfacial tension so that the oil can move more easily and can be produced. Keywords: enhanced oil recovery, interfacial tension, middle phase emulsion, sodium lignosulfonate surfactant, recovery factor Share Link | Plain Format | Corresponding Author (RINI S DGM)

818	Material Engineering	ABS-582
INCREASING HYDROCARBON PROSPECT ZONE USING DETERMINISTIC MODEL BASED ON LOG AND CORE DATA IN “X” FIELD Ratnayu Sitaresmi, Naufal Fadhlurachman, Suryo Prakoso Master’s Petroleum Engineering Department, Universitas Trisakti, Jakarta, Indonesia Abstract Field X was developed by drilling 3 oil wells, X-1, X-2, and X-4, where used to know the hydrocarbon prospect zone in each well. Therefore, this study is needed to analyze and identify the prospect zones that exist in each well. The aim of this study is to obtain petrophysical values to predict the interval zone for hydrocarbon prospects. The study conducted is an analysis of the results of log and core records by using deterministic methods. With this method, rock characteristics that need to be sought include shale volume, porosity, water resistivity, water saturation, and oil column thickness (Netpay). Data for each well available includes gamma-ray log, resistivity log, log density, and neutron log. This log data is available in .LAS format which will then be inputted into petrophysical software. The thickness of the layer indicated as a prospect reservoir is determined based on the gamma-ray log which will then be determined by the volume value of the shale. The determination of porosity size is done by using density log and neutron log. The available resistivity log data is used to calculate water saturation by the Archie method. Based on this method, the average value of porosity and average saturation of water in the "X" field were 16.23% and 66.22%, respectively. Then the cutoff is done with a cutoff limit of shale volume, porosity, and saturation respectively 17.5%, 8%, and 66%. From the cutoff results, the final result in the form of reservoir lumping is the average value of net pay, porosity, and water saturation respectively of 56.39 ft, 21.1%, and 38.1%. Keywords: hydrocarbon prospect , petrophysical values, deterministic methods density log, neutron log Share Link | Plain Format | Corresponding Author (Rini Setiati)

819	Material Engineering	ABS-583
TUNNEL HYDRAULIC FRACTURING EVALUATION AND COMPARING WITH CONVENTIONAL HYDRAULIC FRACTURING COMPUTATION Hari K. Oetomo1, Djoko Sulistyanto1, Mohamad Romli2, Vera Veronica3 and Rizky Satrio Putra Sunjaya1 Petroleum Engineering Depertment, Universitas Trisakti, Jakarta, Indonesia Abstract Tunnel Hydraulic Fracturing is one method of well fracturing operation which generates tunnel in proppant filled fractured rock, near wellbore. The tunnels are in-between packs of proppant. The occurance of tunnel is caused by certain pumping technique during hydraulic fracturing operation. Frac fluid is pumped continuously, along with proppant is pumped intermittently. These tunnels generate high conductivity media in the fracturing geometry. The subject well was initially flow tested intermittently with 95% to 100% oil cut. The permeability from log correlations is 8 mD, with 1824 Psi reservoir pressure, from surrounding wells. Rock mechanic and type of stresses were evaluated to determine tunnel fracturing candidacy. After designing Tunnel Fracturing Design, operationally Pre-fracturing test sequences was executed, which is followed by re-design and operation of Mini frac test. The final design is followed by performing pulsed Mainfrac. The Tunnel Fracturing geometry was computed by service provider software, and the Productivity Index PI by spreadsheet. The Conventional Fracturing and its PI was computed by using spreadsheet. The Tunnel Hydraulic Fracturing PI was as much as 4.22 while Conventional Fracturing was 2.05 Keywords: Tunnel Hydraulic Fracturing, well fracturing operation, proppant, Productivity Index Share Link | Plain Format | Corresponding Author (Rini Setiati)

820	Material Engineering	ABS-585
COMPARISON OF PERMANENT MAGNETIC MOTOR AND INDUCTION MOTOR ON POWER EFFICIENCY IN ELECTRIC SUBMERSIBLE PUMP Djoko Sulistyanto1, Hari K. Oetomo1, Havidh Pramadika1, Ziad1 and Yudha Negara Herlyyanto Putra1 Petroleum Engineering Depertment, Universitas Trisakti, Jakarta, Indonesia Abstract Artificial Lift is utilized to produce oil from a well with no natural flow or to increase the oil production of naturally flow well. One method for artificial lift is the installation of Electric Submersible Pump or ESP. ESP is the most common method and widely used to lift oil from a well. The downhole equipment of the ESP, from bottom, consists of motor, protector, gas separator if needed, and the pump itself. Designing ESP includes selecting the right motor to be installed which is suitable for the pump. Presently, there is more efficient motor technology invented and available in the market. The motor is called Permanent Magnetic Motor or PMM. The conventional motor; Induction Motor or IM; the rotor of the motor consists of electrified copper bar, to induce magnet; while in the PMM motor, the rotor consists of permanent magnet. used is Induction Motor. In this study, the PMM has higher power efficiency, higher and stable power factor, and wider and stable operating speed than IM. The power efficiency of PMM motors is up to 90%, while for IM is only up to 85%. Keywords: Artificial Lift, Electric Submersible Pump, downhole equipment, Permanent Magnetic Motor, power efficiency Share Link | Plain Format | Corresponding Author (Rini Setiati)

821	Material Engineering	ABS-331
Zinc Oxide Nanoparticle and Its Characterization in The LTO/ZnO Composite for Lithium-ion Battery Anode Faizah (a), Bambang Priyono (a*), Zidni E. L. Chairunnisa (a), Mohammad Ridho Nugraha (a), Anne Zulfia Syahrial (a), Achmad Subhan (b) (a) Departement of Metallurgical and Materials Engineering, Universitas Indonesia, Depok, 16424, Indonesia *bambang.priyono[at]ui.ac.id (b) Research Center for Physics – LIPI, PUSPIPTEK, Tangerang, Banten, 15310, Indonesia Abstract One of the most popular active materials being used in lithium-ion batteries is lithium titanate/Li4Ti5O12 (LTO), as it exhibits zero strain properties as well as high resistance to volume change. One of its disadvantages is low capacity and low electrical conductivity. In this experiment, the combination of LTO and zinc oxide nanoparticles (ZnO-NP) as composite provides for increasing capacity of LTO. LTO was synthesized from LiOH and anatase TiO2 using the solid-state method. The composite powders are prepared with 5, 8, and 11 wt.% composition of ZnO-NP. XRD and SEM were used to investigate the composition and microstructure of LTO/ZnO-NP composites. The electrochemical properties of the LTO/ZnO-NP electrode studied by electrochemical impedance spectroscopy, cyclic voltammetry, and charge-discharge. ZnO nanoparticles were uniformly distributed in LTO. The XRD showed a rutileTiO2 and dilithium titanate as a minor phase, while SEM showed particle distribution of LTO/ZnO-NP. LTO/ZnO-NP-11 exhibits excellent cycling performance and high capacity when used as anode with a specific capacity of 166.96 mAhg-1 at 0.1C, which is better than pure LTO. Keywords: Lithium titanate; Zinc oxide; Solid-state; Composite; Lithium-ion battery Share Link | Plain Format | Corresponding Author (Faizah faizah)

822	Material Engineering	ABS-333
Failure Investigation of Reheat Cross Section and Rear Screen Wall Tubes of 600 MW Coal Power Plant Ariyana Dwiputra Nugraha, Ruly Bayu Sitanggang, Eko Supriyanto PT PLN (Persero) Research Institute Abstract Tube material that is operated at high temperatures has a higher possibility of failure, due to the addition of temperature and also influenced by the corrosive environment, pressure, and static-dynamic stress. Rupture occurred in the Rear Screen Wall and Reheat Cross Section Tubes that disruptive the performance of the overall Boiler. It was urgently needed to analyze the cause of the rupture. Material tube needs to be prepared to test in the laboratory. The analysis methods were through mechanical tests which are visual observation, fractography, hardness test, metallography or microstructure examination, and deposit analysis. The results showed that the Reheater Cross Section tube leakage caused by the formation of macro cracks that have been spread along the tube, compounded by flue gas erosion on the outer of the tube. On the other hand, Rear Screen Wall tube leakage caused by thinning from the outside of the tube, it occurred as a result of erosion of the flue gas and bursts from the Reheater Cross Section tube that leaked. Keywords: Boiler, Tube Leakage, RCFA Share Link | Plain Format | Corresponding Author (Ariyana Dwiputra Nugraha)

823	Material Engineering	ABS-590
ESTIMATION OF ENERGY POTENTIAL USING VOLUMETRIC METHOD IN GEOTHERMAL EXPLORATION ON “X” FIELD Harry Pramudito S, Muhammad Taufiq Fathaddin Master of Petroleum Engineering, Faculty of Earth Technology and Energy, Trisakti University Abstract Field X which is being developed is still in the exploration stage which in its progress has drilled 5 exploration wells (A, B, C, D and E) from 6 planned wells. The purpose of this study is to remodel using data from the five wells, with the aim of obtaining the latest geothermal system model and estimation of its energy potential. The method used in this modelling with simulations using the 3D leapfrog software so that will be easier to give a description of geometric shapes and heat sources. While in the estimation of energy potential the volumetric method is used with reference to SNI 13-6482-2000. The results of this modelling simulation were obtained clearly at a depth of -1750m with visible geometric shapes from field geothermal X. From the analysis of temperature ramps obtained a medium temperature geothermal system (125oC -225oC). Estimation of the for energy that can be generated for electricity (MWe) using montecarlo simulator, will produce P10, P50 and P90. Keywords: geothermal system model, energy potential, geometric shapes, heat sources, montecarlo simulator Share Link | Plain Format | Corresponding Author (Rini Setiati)

824	Material Engineering	ABS-591
Determining Azimuth and Inclination Evaluation Point of Well “AMR-10” Field “YMN” Using Minimum of Curvature Method A. Yamani, D.A. Chusniyah, A. Hamid Petroleum Engineering Departement, Universitas Trisakti, Jakarta Abstract The need for oil in the world is quite varied, ranging from cooking needs, factory fuel, to motor vehicle fuel. To obtain oil reserves, it is necessary to drill from the surface to the reservoir. The type of drilling used in this study is directional drilling, where the drill hole is deflected a few degrees and then directed to the target formation which is not located vertically under the well. Planning in directional drilling includes the planning of the drilling path and planning for the composition of the BHA that will be used during the directional drilling process. The process carried out to determine the evaluation points for inclination and Azimuth in AMR-10 wells is by making drilling trajectory planning using the radius of curvature method, then comparing the results of the planning trajectory with the actual trajectory calculated using the minimum of curvature method by calculating the value of true vertical depth, build-up rate, azimuth direction radius, dogleg severity, ratio factor, northing and easting, and horizontal displacement. Based on the calculation results of the AMR-10 well trajectory planning, a vertical final depth value is at 6540.9 ft, and horizontal displacement from the starting point of drilling is 2290.3 ft with an azimuth angle of 202.68 °. Based on the survey data calculation results, it can be seen that an inclination angle of 1.76 ° has occurred at a depth of 149.2 ftMD and azimuth angle of 206.6 ° at the same depth. Keywords: directional drilling, drilling trajectory planning, radius of curvature method Share Link | Plain Format | Corresponding Author (Rini Setiati)

825	Material Engineering	ABS-593
Slope Stability Analysis Using Bishop Method and Kinematic Analysis S N Nasution, S Rachman, H Pramudito Geological Engineering Department, Trisakti University, Jl. Kyai Tapa No.1, Grogol, West Jakarta, Jakarta, Indonesia, 11440 Abstract Mining activity, especially open pit mining, has caused an effect to the nearby environment. One of the most visible impact caused by mining activity is the change in nearby landscape. Steep slopes are common in open pit mining area, thus the chance of landslides happening is high. To determine areas that are prone to landslides, so that practitioner are aware of the matter on hand, the analysis of slope stability in the mining area is deemed necessary. “Bishop” methodology is used to determine the safety factor with the aid of “Rocscience Slide” software using “Mohr-Coulomb” strength type , with weight, cohesion, and friction angle as units in the parameter. And then a kinematic analysis is done by Stereonet projection in “Dips” software to determine to type of landslide. The safety factor value gained from the calculation is 1.112, and then after treatment of slopes has been done, the safety factor value increases to 1.772. after kinematic analysis had been done the type of landslide determined is “Wedge”. So it can be concluded that the slope in the east side of the pit is not safe, with a possibility of a Wedge type landslide occurring. But by treating the slope by changing its geometry we can produce a Safety Factor value that is considered safe. Keywords: Slope, Bishop, Safety Factor, Stereonet Share Link | Plain Format | Corresponding Author (Rini Setiati)

826	Material Engineering	ABS-612
Synthesis of Ni-TiN/Si3N4 nanocomposite layers using the electrodeposition method Hadi Nasbey, Esmar Budi, Leli Kusumawati Physics Department , Universitas Negeri Jakarta, Jl. Rawamangun muka, Jakarta, Indonesia Abstract The synthesis of the Ni-TiN/Si3N4 nanocomposite layers was carried out. The coating process is carried out using the electrodeposition method. In the electrodeposition process, tungsten carbide (WC) is used as the working electrode. The WC is immersed in the electrolytic solution and is electrified for 5 mA for 15 minutes. During the deposition process, the temperature of the solution is maintained at 35 ° C using a hot disc. The crystal structure and phase changes formed in the WC are characterized using X-ray diffraction (XRD). The surface morphology of the layer is guaranteed by scanning electron microscopy (SEM). Based on the results of the characterization, the size of the Ni-TiN crystal is approximately 488.91 Å. The Si3N4 phase is not detected because it is amorphous. The thickness of the layer formed is approximately 805 nm. Keywords: nanocomposite, electrodeposisi Share Link | Plain Format | Corresponding Author (Hadi Nasbey)

827	Material Engineering	ABS-870
Modified Concrete Mix Design Using Sikacim, Sika Bonding, Lumajang Sand And Silica Sand Aliftio Bagus Ramadhan, Agata Iwan Candra, Dwifi Aprillia Karisma, Ahmad Ridwan, Ismail Wibisono, Yana Sayidul Muslihun Kadiry University Abstract The development of construction makes concrete a common and essential building material used. Concrete is a composite material consisting of a mixture of aggregate cement, water with or without the used admixture . In this era, the admixture is needed to meet construction needs. One of the admixtures is Sikacim Concrete Additive and Sica Bonding Adhesive. Sikacim is able to accelerate the hardening of concrete, while Sica Bonding is able to increase adhesion. In addition to added materials, the quality of concrete constituent materials also influences the manufacturing of concrete. This study aims to modify the proportion of concrete mix using Lumajang sand and silica sand with the addition of added ingredients Sikacim Concrete Additive and Sica Bonding Adhesive. The test specimen used is in the form of a cube with a size of 15x15x15 cm. The method used is an experimental method with compressive strength testing carried out when the age of concrete reaches 3,7,14, and 28 days. Compressive strength testing using universal testing machine. Testing results obtained compressive strength value generated is 944 kg / cm2 in 28 days. Keywords: Compressive Strength, Sikacim, Sica Bonding, Silica Sand, Lumajag Sand Share Link | Plain Format | Corresponding Author (ALIFTIO BAGUS RAMADHAN)

828	Material Engineering	ABS-873
Effect Of Loss Water During Vibrations On The Compressive Strength Of Concrete Fc 21.7 Mpa Vilesia Lepaloran Roding, Agata Iwan Candra, Dwifi Aprillia Karisma, Teo Agung Laksono, Ahmat Ansori, Sudarsono, Amin Vaysyad, Evita Fitrianis Hidiyati Kadiry University Abstract Concrete is an important material in construction because it is necessary to improve the quality of concrete. One of the quality of concrete is influenced by the presence of air cavities in the concrete. The air cavity in concrete can be reduced by vibrating. The vibrating air cavity in the concrete will rise to the surface in the form of water. The purpose of this study was to determine the effect of the amount of water that rises to the surface as a result of vibrations on the concrete compressive strength of fc 21,7 MPa. The method used in this research is the experimental method and the study of previous research theories. Vibration uses an external vibration method with acceleration of 180 m/s2, variation velocity 160 mm/s and displacement of 1000 mm. The time variations used are 1 minute, 2 minutes and 3 minutes. The specimen is cylindrical with a diameter of 15 cm and a height of 30 cm. The results showed the highest amount of water that was on the surface contained in the vibration with a time of 3 minutes with a compressive strength of 23,18 MPa and water content 0.78 gr. Keywords: Compressive Strength, Vibration, Water Content Share Link | Plain Format | Corresponding Author (VILESIA LEPALORAN RODING)

829	Material Engineering	ABS-885
Contribution of terrestrial material in West Sulawesi based on geochemical and biostratigraphy analysis Y. Sutadiwiria, D. Syavitri, Yeftamikha 1Geology Department, Faculty of Earth Technology and Energy, Trisakti University, Jalan Kyai Tapa No. 1, Jakarta 11440, Indonesia Abstract The LYS and KYS exploration well were drilled in the north and south of the Bdg Block, onshore West Sulawesi. Geochemical analysis, such as vitrinite reflectance, gas chromatography, and gas chromatography/mass spectrometry, was conducted on cutting samples of LYS and KYS wells. The existing biostratigraphic analysis shows that LYS samples are in the marine environment (outer neritic-upper bathyal) with age of Late Miocene-Pleistocene, while KYS well samples are also in the marine environment (inner neritic-batial) with age of Middle Eocene-Early Pliocene. There are few terrestrial material found, such as oleanana, bikadinana, taraxastana, and gamaserana that indicates only a small amount of terrestrial material that was carried and moved to the marine environment. The high oleanana to C30hopana ratio (oleanana/C30hopana) in both wells showed the contribution of higher plants. There are variations in the value of the oleanana/C30hopana ratio in KYS well samples at Neogene age which is caused by the abundance of angiosperm plants during the Neogene period (Middle Miocene-Late Miocene). The ternary diagram shows abundance of sterana (C27, C28, and C29) with marine organic material input, followed by contributions from terrestrial material, and deposited in the marine environment Keywords: West Sulawesi, geochemical, oleanana, Neogene, angiosperm Share Link | Plain Format | Corresponding Author (Rini Setiati)

830	Material Engineering	ABS-379
Gas Inplace of Reservoir X Uses Dynamic Data and Geology Data in ND Structure, South Sumatera Nida Muthia Lamis, Rini Setiati, Suryo Prakoso Petroleum Engineering Depertment, Universitas Trisakti, Jakarta, Indonesia Abstract ND Field is a mature field, whose production has decreased. This field has considerable hydrocarbon potential. With such a large potential, it is possible that in reservoir x which is in the Telisa Formation there is still the potential for hydrocarbons in the un-drainage area outside the area of the producing wells. The reservoir x compartmentalization analysis is carried out using the fault seal analysis method, mapping the reservoir x property combined with the analysis of pressure data between compartments. Reservoir x, production and pressure data are used to analyse the amount of connected gas in place (CGIP) using the P/Z method. Reservoir x connectivity is divided into 4 compartments. CGIP volume analysis using the P/Z method shows CGIP compartment 1 of 1400 MMSCF and for compartment 2 of 350 MMSCF, whereas with volumetric it is found that compartment 3 inplace is 261.4 MMSCF and compartment 4 is 413.9 MMSCF. Keywords: reservoir compartment, fault analysis, shale gouge ratios, pressure trends, property differences Share Link | Plain Format | Corresponding Author (Rini Setiati)

831	Material Engineering	ABS-380
EFFECT OF USE OF CO-SURFACTANT WITH THERMAL STABILITY Firsta Sarascia Vindy, Rini Setiati, Udi Syahnoedi, Yani Faozani Alli Petroleum Engineering Depertment, Universitas Trisakti, Jakarta, Indonesia Abstract Co-surfactants have an important role to increase oil and reduce the tension between the interface of oil and water.The purpose of this research use of co-surfactants and thermal stability at the laboratory scale.The surfactants used in this study are ABS, MES and SCI with a concentration of 0.3%.The ingredients used were Aquades,NaCL and EGBE.The equipment used in the thermal stability test was the Oven.The thermal stability testing was carried out by the surfactant for 30 days then heated at a temperature of 600C according to reservoir conditions.Success in testing thermal stability considers compatibility with thermal stability.ABS surfactant on day 1 contained an oil layer while for days 3 to 30 the compatibility was clear and the IFT value obtained was 10-2 dyne/cm.SCI surfactant observation day 3 and 7 day compatilibitas oil layer so it doesnt resistance to heat stability while on days 1 to 30 the compatibility is clear and the IFT value obtained is 10-2 dyne/cm.MES surfactant observations from day 1 to day 30 obtained a compatible solution and the resulting IFT value is 10-2 dyne/cm but 21 day observation the IFT value obtained is 10-3 dyne/cm.So the surfactant compatible with the use of co-surfactants can affect thermal stability. Keywords: ABS, Co-surfactant EGBE, MES, SCI, Thermal Stability Share Link | Plain Format | Corresponding Author (Rini Setiati)

832	Material Engineering	ABS-915
The Comfort Assessment of Bale Sakenem Buildings I Wayan Parwata (1*) 1) Departement of Architecture, Faculty of Engineering, Warmadewa University, Bali-Indonesia *iwayanparwata01[at]gmail.com Abstract Traditional Balinese architecture is built following the layout and building layout based on the Asta Kosala Kosali concept. This concept is used in the construction of traditional dwellings in Bali in accordance with the philosophical, ethical and ritual foundation, especially in the construction of the Bale Sakenem Building. In its development, the development of Bale Sakenem must also be based on the value of comfort and in accordance with the concept of ergonomics to facilitate activities in the Bale Sakenem Building. The comfort assessment of the Bale Sakenem Building model is based on measurements of saka height (pole), bale-bale height, and height of the bar. The method used is Quasi experiment. The results of the comfort assessment were obtained based on the results of a questionnaire given to 20 homeowners and 50 people in each banjar in Singapadu Tengah Village, Gianyar, which were taken randomly. The height of the Bale Sakenem building is built according to the users anthropometry. Saka Height is 223.86 cm, with the size of the user user (family head) = 9.56 cm. Bale-Bale height is 66.5 cm and Bar Height is 69.6 cm. 83% of respondents feel comfortable when doing activities in the Bale Sakenem building. Keywords: Anthropometry, Bale Sakenem Building, Balinese Architecture, Ergonomic Share Link | Plain Format | Corresponding Author (I Wayan Parwata)

833	Material Engineering	ABS-917
Optimization Of Application ICCP Design On The Jetty Steel Structure To Corrosion Control Budi Lukman Hakim (a*), Handoko Subawi (b*) (a) Department of Industrial Engineering, Sekolah Tinggi Teknologi Garut, Jl.Mayor Syamsu no 1 Garut, Indonesia 44151 (b) PT Dirgantara Indonesia, Jl. Pajajaran 154 Bandung, Indonesia 40174 Abstract Cathodic protection is one of the methods for controlling corrosion. The system applied to this jetty is Impressed Current Cathodic Protection (ICCP). This system works by giving current through an external source so this method is called the impressed current method The installation of the ICCP cathodic protection system on the Jetty system facilities has been completed, this ICCP protection system has a design minimum of 10 years (lifetime to protection). All results of potential measurements on test & commissioning have met the protection criteria according to ISO 15589-2 standard. The negative potential value that can be accepted is min -850 mV (CSE) or -800 mV (Ag / AgCl), from the measurement results the range obtained is -842 mV to -1197 mV against Ag / AgCl. Inspection of 4 TR, the total output current is still below capacity (safe). Based on the results of joint inspection and commissioning, the ICCP cathodic protection system has been functioning properly in accordance with NACE SP0169-2007 and ISO 15589-2 standards and is acceptable. The recommendation to keep maximizing the installed ICCP cathodic protection system is to have to check the current and potential on the TR every month, to find out the condition of the protection system functioning properly. Keywords: cathodic protection, Corrosion, Impress Current, Jetty Share Link | Plain Format | Corresponding Author (Budi Lukman Hakim)

834	Material Engineering	ABS-414
Gas Production Kinetics and Organic Matter Digestibility in Vitro of Diets Supplemented by Biochar and Liquid Smoke Novia Qomariyah (1,2,*),Yuli Retnani (3), Anuraga Jayanegara (3), Elizabeth Wina (4), Idat G Permana (3) 1) Graduate School of Nutrition and Feed Science, Faculty of Animal Science, IPB University, Jl. Agatis Kampus IPB Dramaga Bogor 16680, Indonesia 2) South Sulawesi Assessment Institute for Agricultural Technologi (South Sulawesi AIAT), Makassar 90243, Indonesia (*) novia_joyo[at]yahoo.com 3) Department of Nutrition and Feed Technology, Faculty of Animal Science, IPB University, Jl. Agatis Kampus IPB Dramaga Bogor 16680, Indonesia 4) Indonesian Research Institute for Animal Production, Ciawi Bogor 16720, Indonesia Abstract This research aimed to evaluate the use of biochar and liquid smoke as feed additives on gas production and organic matter digestibility in an in vitro rumen fermentation system. Treatments consisted of: control (substrate), biochar BC1 (0.1 mg / ml), BC2 (0.2 mg / ml), BC3 (0.3 mg / ml), BC4 (0.4 mg / ml), liquid smoke LS1 (0.25 ul / ml), LS2 (0.5 ul / ml), LS3 (0.75 ul / ml) and LS4 (1 ul / ml). The samples were further incubated in vitro with buffered-rumen fluid in four replicates, represented by two incubation units per replicate, and conducted for 48 h at 39oC. Parameters measured in the in vitro evaluation were total gas production and digestibility of organic matter. Data were tested using analysis of variance (ANOVA) and if there was a significant difference at P<0.05 then continued with Duncan’s multiple range test. The results showed that supplementation of biochar and liquid smoke did not affect gas production. However, the addition of biochar increased the digestibility of dry matter and organic matter as compared to control substrate (P <0.05). It was concluded that biochar supplementation and liquid smoke could be strategically used to increase feed digestibility. Keywords: gas production, digestibility, diets, biochar, liquid smoke Share Link | Plain Format | Corresponding Author (Novia Qomariyah)

835	Material Engineering	ABS-690
Water wall tubes Failure Analysis in a 25 Megawatt Steam Power Plant Ruly Bayu Sitanggang, Ariyana Dwiputra Nugraha PT. PLN (Persero) Research Institute Abstract The failure of waterwall tubes in a boiler steam power plant has been analysed. When first inspection was conducted on the 25-Megawatt steam power plant, leakage was found on several waterwall circulating fluidized boiler (CFB) tube. Visual examination, chemical composition analysis, hardness measurement, and metallographic examination on the tube samples cut from the waterwall were used to analyse the cause of the failure. Visual examination showed that there is thick weld joint on the tube inner side that could induce overheat and cause the tube to fracture and, in some location, there were thick deposit on the tube inner side. Hardness measurement of the tube near the fracture location showed increase in the hardness value ranged from 191 – 206 HV. Metallographic examinations showed that there has been some micro crack along the grain boundary. Composition analysis on the deposit at the inner side of the tube showed a trace of magnesium and calcium indicate that the water quality of the boiler doesn’t meet the standard. To resolve the problem, it is recommended to fix the weld procedure and to kept the water quality to meet the standards. Keywords: water wall tube, failure analysis, circulating fluidized boiler power plant Share Link | Plain Format | Corresponding Author (Ruly Sitanggang)

836	Material Engineering	ABS-946
Wood Fiber Modelling using Stochastic Models Y.S. Afrianti*(a), U.S. Pasaribu (a), FDE Latief (b), H. Ardy (c) (a) Statistics Research Group, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung (b) Physics of Complex System Research Group, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung (c) Materials Science and Engineering Research Group, Faculty of Mechanical and Aerospace Engineering, Institut Teknologi Bandung Abstract Various kinds of materials such as iron, wood, and concrete are very useful in human life. For example, the wood fiber can be used in building construction such as wall, roof, floor, as well as automotive interior. The design process of such materials is therefore still continuously researched and developed in order to create high quality products. To avoid excessive costs, it is essential to establish a non-destructive design technique of the macroscopic material. In this paper, the design technique of fibrous material using computer based modelling (virtual material design) as the realization of stochastic models will be investigated. In this model, the fiber can be stated as either a dilated curved lines, a chain of balls or cylinders with different cross-section. In this research, we will focus to investigate the image of Medium Density Fiber (MDF). It will be modelled as cylinders using the Poisson cylinder process with a rectangular cross-section. We also use Euler rotation and ß-distribution to determine the position and orientation of the fibers in the system. Simulation software was conducted to verify the model. The result showed that the realization of fibers model is similar to the image of the wood fibers sample. Keywords: Wood Fiber, Poisson cylinder process, MDF, Euler rotation, ß-distribution Share Link | Plain Format | Corresponding Author (Yuli Sri Afrianti)

837	Material Engineering	ABS-450
THE EFFECT OF ALKALI TYPE ON IFT VALUE FOR SURFACTANT - ALKALI INJECTION Firmansyah Wahyu Latief, Rini Setiati, Dwi Atty Mardiana, Yani Faozai Alli Petroleum Engineering Depertment, Universitas Trisakti, Jakarta, Indonesia Abstract The purpose of this research is to determine the effect of alkali on surfactants on the value of IFT and determine the temperature difference on the stability of surfactant-alkaline IFT. There are six alkaline surfactant solutions used. Solution compatibility test in this experiment includes aquos stability, CMC, IFT, phase behavior test by observing the formation of micro emulsion survived 24 hours and thermal stability at reservoir temperature (60o C) for 7 days. There are two types of surfactant-alkaline solutions that pass the selection stage, OGEP 400 OLEAT concentration of 0.3% salinity 5% and NaOH with a concentration of 0.1% with the surface tension test results of 5.176 × 10-3 dyne / cm, the reading of the phase behavior is in phase 1, unstable thermal stability test with IFT after thermal measurement of 1,385 × 10-2 to 2,416 × 10-2 dyne / cm, filtration ratio of the filtration test of 1.2 ml / second and recovery factor of the imbibition results of 75.5%. As for the Na2CO3 alkali at a concentration of 0.5% with a surface tension test result of 3,379 × 10-3 dyne / cm, the reading of the phase behavior is in phase 1, a relatively stable thermal stability test with an IFT after thermal measurement of 2.42 × 10-2 to 2.871 × 10-2 dyne / cm, the filtration ratio from the filtration test is 1.17 ml / second and the recovery factor from the imbibition results is 57.8%. The addition of alkali was proven to reduce surfactant IFT to touch 10-3 dyne / cm. This can be used as a basis for applying EOR to sandstone formations Keywords: alkali, surfactant, IFT, filtration, imbibition Share Link | Plain Format | Corresponding Author (Rini Setiati)

838	Material Engineering	ABS-454
The Swelling Effect of Sodium-Bentonite as an Additive in Water-Based drilling Mud with different concentration of Polyamine Inhibition Timur Akbar, Rini Setiati, Rizky Akbar Petroleum Engineering Depertment, Universitas Trisakti, Jakarta, Indonesia Abstract Problem that often occurs when drilling is on progress, is when the mud is too reactive, that will cause swelling clay or too many filtration loss. Sodium-bentonite are widely used in drilling mud to give more viscosity to the mud itself and giving the mud an optimal ability to hold and lift cutting inside the borehole, with a risk of swelling appearance and too many filtration loss that may cause [1]. It contain mostly montmorillonite particles like, which is sodium that overpowered the illite content inside it [2]. Polyamine as a inhibitor to the clay can infiltrate into the c-spacing of the Bentonite, which is a a gap between two layers of bentonite structure[3]. A test has been conducted to test the effect of the polyamine inhibition inside a Water-base mud formulation x which is already inhibited with sodium-bentonite. This test are using several equipment such as; API Filtrate loss, swell meter test, retort oven and Vann vg meter with API Standard procedure. The result give a distinctive conclusion about how the rheological elements react toward the polyamine existence with different concentrations (4gr-10,5gr) inside the mud, and also the mud durability differences between room temperature and high temperature (300°F). Keywords: mud, swelling clay, filtration loss, Polyamine, Water-base mud Share Link | Plain Format | Corresponding Author (Rini Setiati)

839	Material Engineering	ABS-715
The Creation of Natural Dyes Batik in Samin Community Through The Use of D-Batik Application Integrated Stamp Made of PLA Filaments D.W. Kurniawati (Visual Art Education Department, Universitas Negeri Semarang, Indonesia); W. Wibawanto (Visual Communication Design Department, Universitas Negeri Semarang, Indonesia); N.S. Prameswari (Visual Communication Design Department, Universitas Negeri Semarang, Indonesia), Purwanto (Visual Art Department, Universitas Negeri Semarang, Indonesia); R.A. Imawati (Visual Art Education Department, Universitas Negeri Semarang, Indonesia) Visual Art Department, Faculty of Language and Art, Universitas Negeri Semarang Abstract D-Batik as an application product that was created to facilitate batik artisans in developing motifs and integrated with 3D printers, has made it easy for batik artisans to create batik prints made from PLA filament. The use of the application along with the utilization of the batik stamp, has been applied by the batik crafters of the Samin Community in the Blimbing village, Blora Regency under the auspices of the Industry and Cooperative Office of the Blora Regency. Currently the challenge faced by batik artisans is the use of synthetic dyes that produce waste that can threat the sustainability of the environmental ecosystem. D-Batik initiates the use of natural dyes made from teak leaves, mango leaves, ketepeng fruit and noni root which can be obtained easily in the surrounding environment. The purpose of this study are; (1) To find out the efficiency of using batik cap made from PLA filaments with natural coloring media; (2) To analyze the aesthetic quality of batik results made from PLA filaments with natural coloring media. This study uses qualitative methods with the Research and Development approach. Based on the results of research, the use of 3-dimensional printers in the manufacture of batik stamp can cut the time and cost of batik production. This is supported by the use of natural coloring which gives good results with its unique characteristic. Through a combination of media creation technologies and the preservation of the conservation value of nature conservation, environmentally friendly batik can be created with a relatively fast time and at an affordable price for the general public. Keywords: D-Batik, Batik apps, creative industry, batik natural dyes Share Link | Plain Format | Corresponding Author (Dwi Wahyuni Kurniawati)

840	Material Engineering	ABS-222
Compaction Of Soil Materials Using Kaolinite Soil With Concrete Waste Kavindo Yugiswara Hutama, Agata Iwan Candra, Mahardi kamalika, Herlangga Duta Pramudya, Endah Nungki Pratiwi, Annisa Rahma, Ichsanudin Nurzi Kadiri University Abstract Constructions of buildings above ground level Clay is one of the most common problems in construction in many parts of the world. Soil is a basic element of construction work, both roads, and buildings. Unstable soil can cause damage that occurs on the road, such as a bumpy road surface, This land problem is not limited to surface movement, but it covers the whole, such as depreciation and soil development. Compaction is done to reduce the volume of soil grains. Soil compaction aims to increase the weight of dry volume, reduce soil subsidence, reduce soil plasticity, reduce volume changes as a result of changes in water content. This research, a standard proctor test was carried out by adding concrete waste to the clay. Addition of concrete waste with variations of 5%, 10%, 20%, obtained dry weight (1.58), (1.65), (1.61). The research showed that the addition of 10% of concrete waste obtained an optimum dry weight of 1.65 with a moisture content of 10% Keywords: Clay, Standart Proctor Test, Compaction, Concrete Waste Share Link | Plain Format | Corresponding Author (Kavindo Yugiswara Hutama)

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