The effect of the condensate water temperature on the performance of the vehicle air conditioning system

Wahid, Muhammad Aiman (2021) The effect of the condensate water temperature on the performance of the vehicle air conditioning system. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

This study experimentally investigates the effect of condensate water temperature on the performance of automotive air conditioning (AAC) systems. The experimental test rig consists of the actual components of the AAC system from the Proton Wira passenger car. The experimental test rig has been modified by adding a spraying compartment to manipulate the temperature of the condenser. In the experimental work, the temperature of the condensed water was manipulated at 8 ±3°C and 27 ±3°C. The results were compared with the baseline conditions of the condenser with no condensate water sprayed. The other parameters such as the speed of compressor, volume flow rate of condenser, and the air inlet evaporator temperature were fixed at 1550 rpm, 450 ml/min and 30 ±3°C, respectively. The study showed that the coefficient of performance (COP) of the AAC system increases at lower temperature of condensate water sprayed. It was due to a significant decrease in compressor work from both conditions as compared to the baseline state, and an increase in cooling capacity. In addition, the highest COP is at 4.81, increase 16.6% as compared to baseline condition, and this increment occurred at condensate water sprayed at 8.01°C. This is followed by condensate water sprayed at 27.2°C (15.5%), as compared to baseline condition.

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