Dec 31, 1994 , An experimental study was conducted in which the performance of three blends of R-134a and R-32 was compared to that of R-22.
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May 29, 2001 , The experimental results show that if a system is undercharged to 90 per cent then the effect is small: a 3.5 per cent reduction in cooling capacity.
The main purpose of this study was to investigate the possibilities of using R134a as a working fluid to replace R22 for vapor compression heat pumps.
A decrease in charge level of about 7% reduced the system refrigerating capacity by 11.3% with R22 while with the M20 refrigerant mixture it reduces by 6.9% ...
Robinson, J. H., 1993, The Impact of Charge on Performance of an Air-to-Air Heat Pump for R-. 22 and Three Binary Blends of Refrigerants 32 and 134a, Texas A&M ...
Oct 22, 2024 , The main purpose of this study was to investigate the possibilities of using R134a as a working fluid to replace R22 for vapor compression heat pumps.
In this study, the performance of a heat pump system charged with binary R32/134a mixtures is experimentally investigated. Two cases of single separator ...
The impact of charge on the cooling performance of an air-to-air heat pump for R-22 and three binary blends of R-32 and R-134a , J. RobinsonD. Oneal.
Jul 17, 2014 , Vapor compression systems continuously leak a small fraction of their refrigerant charge to the environment, whether.
The 40/60% mass fraction blend of R-32/R-134a had capacity and steady-state efficiency 1% greater than R-22, • The 30/70% blend of R-32/R-134a had a 5% lower ...