UNJUK KERJA SOLAR ASSISTED HEAT PUMP WATER HEATER DENGAN VARIASI REFRIGERAN CFC-12, HFC-134A DAN HCR-134A
Abstrak: An experimental study
was conducted to determine the performance of a solar assisted heat pump water
heater ( SAHPWH ). The system utilised flat unglazed aluminium collectors to
absorb solar and ambient energy and used to evaporate the
working fluid. The
system was tested
with refrigerant CFC-12, HFC-134a, and HCR-134a. Compressor
was controlled by constant rotation. CFC-12 and HFC-134a admission based on
working pressure and HCR-134a 30% - 40%
from weight CFC-12 or HFC-134a. Solar radiation was 600 W/m2 and water volume
was 50 litre. Experimental results was indicated that HCR-134a has heat capacities,COP
heat pump standart, COP actual was higher than CFC-12 and HFC-134a. The highest
water temperature was produced by HCR-134a was 640C.
Penulis: Wibawa Endra Juwana
Kode Jurnal: jptmesindd080024
