Optimum Parameters of Organic Rankine Cycle (ORC) Power Plant Using Coconut Shell as Fuel
Harmiansyah (a*), Edy Hartulistiyoso (b), Slamet Widodo (c), Lilik Pujantoro E. N (d)

a) Mechanical Engineering and Biosystems Department of IPB University, Dramaga-Bogor 16680, Indonesia
*harmibm[at]gmail.com

Abstract

The scarcity of energy sources is now an important issue. Increasing the number of the population makes energy needs higher. The use of renewable energy as an alternative is a good solution. Organic Rankine Cycle (ORC) is a Rankine cycle that can work at low temperatures and pressures. The working fluid in ORC is an organic fluid such as R-134a refrigerant because it has a lower boiling point than water and has a low environmental impact. In this study, work simulations were performed using software tempo cycles to analyze the performance of the Organic Rankine Cycle (ORC) system using coconut shells to obtain optimum parameter variations based on thermal efficiency values. The simulated data consists of 12 variations of fuel rate parameters and mass flowrate. Based on the simulation results, 2.5 kg 2 GPM variation is obtained as the optimum parameter variation with a thermal efficiency value of 6.17%.

Keywords: ORC, R-134a, optimum, simulation. coconut shells

Topic: Mechanical Engineering