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An experimental investigation of the effect of condenser cooling on the performance of a split-type air conditioner with a nominal cooling capacity of 2.6 kW using refrigerant R410a has been carried out. In this experiment, condensate water from the evaporator was flowed and poured directly into the condenser. Due to its lower temperature, the condenser could give the cooling effect to the condenser. In addition, the evaporation of the condensate water can give additional cooling to the condenser. From this experiment, it reveals that the cooling capacity increases by 1.8%, power consumption decreases by 3.5% and COP increases by 3.4%. [ABSTRACT FROM AUTHOR]

This paper presents an experimental investigation on the system performance of a residential air conditioner using condensate as a compressor discharge cooler. The condensate is water produced by the evaporator surfaces. The use of condensate is to reduce the energy consumption and improve the performance of the air conditioning system. The experimental investigation has been carried out on a split-type air conditioner with cooling capacity of 2.5 kW. The utilization of condensate as a discharge cooler decreased the compressor discharge pressure and consequently, reduced the compressor power consumption by 6.3%. In addition, the effect of the decrease in the compressor discharge pressure resulted in the decrement in the temperature of condenser outlet by 2.2°C. The decrease in temperature of condenser oulet leads to the increment in the subcooling and increases in the cooling capacity. [ABSTRACT FROM AUTHOR]