Performance Improvement of an Air Conditioning System Using Matrix Heat Exchanger and Nanoparticle Lubricant

摘要

Objective of this work is to study the performance of a split air conditioning system with and without a Matrix Heat Exchanger (MHE) and nanoparticle lubricant. The experiment was done using HFC134a as the refrigerant and Polyol-ester oil (POE) as the conventional lubricant in the air conditioning system. The nanoparticles used are 0.06% mass fraction of CuO and AL203. The performance of the split air conditioning system with HFC134a/POE oil system was compared with HFC134a/POE oil/MHE and HFC134a/POE/Nano lubricant mixture for different load conditions. The result indicates that the system performance has improved when HFC134a/POE oil/MHE system was used instead of HFC134a/POE oil system and there was also a reduction in power consumption at all load conditions. The HFC134a/POE oil/MHE and HFC134a/POE/Nano lubricant mixture works normally and safely in the air conditioning system. HFC134a/POE mineral oil/MHE system reduced the energy consumption by 11.11% when compared with the HFC134a/POE oil system. There was also an enhancement in coefficient of performance (COP) when MHE was introduced in the conventional system.