Design and Experimentation of Roll Bond Evaporator for Room Air Conditioner with R-22 as Refrigerant

Seasonal Applicability of Refrigerant Release Technology in Room Air Conditioner

The refrigerant release technology relieves even eliminates the over-compression loss of scroll compressor by bypassing the refrigerant in the compression chamber to the suction pipe under small system pressure ratio conditions. Because the room air conditioner works in mild conditions at most of the time, its seasonal energy performance is expected to be effectively improved by the refrigerant...

Evaluation of a Refrigerant R410A as Substitute for R22 in Window Air-conditioner

CFCs have been phased out, except for essential users, and HCFCs are to be eliminated by 2020, because of their ozone depletion potential. This generates a need for the investigation of zero ozone depletion potential (ODP) refrigerants or refrigerant blends. R410A is among newer brand of refrigerant blends, with zero ODP. The biggest difference to R22 is the pressure levels generated which are ...

Application of Nonazeotropic Refrigerant Mixtures in Multi-Zone Heat Pump Room Air Conditioner with Hot Water System

Effects of Non-Uniform Refrigerant and Air Flow Distributions on Finned- Tube Evaporator Performance

An experimental investigation was implemented to determine the capacity degradation due to non-uniform refrigerant and air flow distributions, and to assess the potential to recover the lost capacity via controlling refrigerant distribution between individual refrigerant circuits. The tests were performed on a three-circuit, threedepth-row, finned-tube evaporator. Refrigerant inlet quality, exi...

Window Air Conditioner with Orthodox Refrigerants

The system design of window air conditioner does not evolve in one day. Due to the continous efforts are taken by the refrigeration and air conditionging professionals, successful and economic models of window air conditioners are currently used. This paper states about the development of window air conditioner with phase change material and water as refrigerants. Developed air conditioner was ...

Impacts of Refrigerant Charge on Air Conditioner and Heat Pump Performance