Enhancing performance of wall mounted split air conditioner using capillary tube in a tube heat exchanger

Abstract

The high cost of electricity rates has affected the demands of the public for the availability of energy-efficient air conditioning systems. This study aims to obtain data on improving performance of air conditioner using capillary tube in tube heat exchangers. Tests were carried out on a wall mounted split AC capacity of 9000 Btu/h which was modified using a heat exchanger with capillary tube in tube heat exchanger. The results showed that the installation of a capillary tube in tube heat exchanger on a wall mounted split AC resulted in an increase RE and COP of 13.2% and 14.9%, respectively. In addition, the room cooling time in the TiTHX capillary mode testing is shorter. So it has implications for lighter compression work and saves the power consumption required by AC.

Feasibility of R1270 as an Alternative Refrigerant to Replace R134a in Refrigerator

“…Based on these results there is an increase in the refrigeration effect of 98% on the use of R1270 as a working fluid. These results have an impact on the pressure aspect ratio to be smaller and the amount of heat that can be absorbed by the refrigerant in the evaporator is more, thereby increasing the cooling capacity [13].…”