This research study to compare the performance of a cooling system that uses a cooling substance R-134a is the substance works by considering the operation of the cooling system that uses only a cooling substance R-134a and then consider Nano-particle filled with mixed with POE lubricant under the condition that the temperature of condenser is equal to 40 and 45° C and under extreme temperature, evaporation is equal to-20° C, 10-0 and from experiments found that when the condenser temperature condition is equal to 40° C temperature value at the lowest possible value, there will be a trial. Best in the temperature, evaporation is equal to 0° C the temperature at the trial to be as high as possible, including performance coefficients under the condenser temperature is equal to 40° C will have the highest performance coefficient values.
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