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.
People also ask
What is the effect of refrigerant charge on the performance of the air conditioning system?
When to recharge a heat pump?
How often does a heat pump need refrigerant?
What is air to air heat pumps for cooling?
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.
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 ...
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 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 ...
A simulation model for pure and mixed refrigerants is described that is suitable for conducting thermodynamic cycle evaluations of R-22 alternatives.
Missing: impact | Show results with:impact
Low refrigerant charge levels can cause significant reductions in both cooling and heating capacity. Also, running equipment at low or high refrigerant charge ...
Missing: binary blends 134a
A further increase of mass charge increases the cooling capacity and EER reaches its maximum value [4][5] [6] . Again, increase of the mass charge leads to more ...
compared with those of R22 at the same heating/cooling capacity. ... The Performance of Chlorine-Free Binary Zeotropic Refrigerant Mixtures in a Heat Pump.