Comparative assessment of environment-friendly alternatives to R134a in domestic refrigerators |
| |
Authors: | M Mohanraj S Jayaraj C Muraleedharan |
| |
Affiliation: | (1) Department of Mechanical Engineering, Dr. Mahalingam College of Engineering and Technology, Pollachi, 642003, India;(2) Department of Mechanical Engineering, National Institute of Technology, Calicut, 673601, India |
| |
Abstract: | In the present work, the possibility of using R152a and hydrocarbon refrigerants (such as R290, R1270, R600a, and R600) as
alternatives to R134a in domestic refrigerators has been assessed theoretically. The refrigerants are assessed over wider
range condensing and evaporator temperatures. The assessment was done with standard parameters such as pressure ratio, volumetric
cooling capacity (VCC), coefficient of performance (COP), compressor input power, compressor discharge temperature, and total
equivalent warming impact (TEWI). The results obtained showed that pure hydrocarbon refrigerants are not suitable to be used
as alternatives to R134a due to its mismatch in VCC. R152a has approximately the same VCC with about 9% higher COP and lower
values of operating pressure and compressor input power. The discharge temperature of R152a was higher than that of R134a
by about 14–26 K. TEWI of R152a was about 7% lower than that of R134a. The reported results proved that R152a is an energy-efficient
and environment-friendly alternative to phase out R134a in domestic refrigerators. |
| |
Keywords: | Alternative refrigerants Domestic refrigerators Environment-friendly alternatives |
本文献已被 SpringerLink 等数据库收录! |
|