Dec 31, 1994 กค 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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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 ...
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 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% ...
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 ...
Charge models that can predict at what conditions a system will begin to floodback refrigerant to the compressor or operate at excessive superheat, subcooling, ...
The effect of improper refrigerant charging on the performance of a residential heat pump with fixed expansion devices (capillary tube and short tube orifice).
ABSTRACT. A ductless mini-split residential heat pump with a modified indoor coil was utilized to compare the performance of R22 and a.
Missing: impact blends