Simulation of Mixing Refrigerant R32 with R1270 instead of R410A to Reduce GWP in Wall Mounted Air Conditioning Widodo1, Berkah Fajar TK2, MSK Tony Suryo3, SH Winoto4
1Doctoral Study Program in Mechanical Engineering, Faculty of Engineering, Diponegoro University
Jl. Prof Soedarto, SH Tembalang Semarang 50275
widodosaji71[at]gmail.com
2Doctoral Study Program in Mechanical Engineering, Faculty of Engineering, Diponegoro University
berkahfajar[at]undip.ac.id
3Doctoral Study Program in Mechanical Engineering, Faculty of Engineering, Diponegoro University
shwinoto[at]gmail.com
4Doctoral Study Program in Mechanical Engineering, Faculty of Engineering, Diponegoro University
msktonysu[at]yahoo.co.id
Abstract
Refrigerant R410A is a cooling barrier which is still widely used for air conditioning. This R410A contains Fluoro element which can increase the value of GWP. In this research simulation we used an AC unit using R410A with the aim of reducing GWP by mixing synthetic refrigerant with hydrocarbons. R410A still have content GWP: Mixing using R32 / R1270 refrigerant is predicted to reduce the GWP value because R1270 is one of the hydrocarbon refrigerants that has a GWP value of only: 3. By using Refprop software it can be simulated a mixture composition starting from: 50/50, 40/60, 30/70, 20/80 and 10/90. From the results of the mixture simulation conducted, obtained a mixture approaching the characteristics of R410A, namely in the mixture: 20/80 with COP: 5.17 while R410A: 4.12. Compression ratio: R410A: 2.0 and for mixed refrigerants 20/80: 1.9. The refrigerant effect of mixed refrigerants is 20/80: 254,51, R410A: 162,77. Using this refrigerant mixture can reduce the GWP value and improve the performance of the AC cooling system. This refrigerant has considerable potential to replace the R410A.
