ABSTRACT

This study aims to determine the effect of the installation of a T-junction on the performance of an air-conditioning system. The T-junction is installed to separate the phase of the refrigerant liquid and vapor that flows to the evaporator. Tests are carried out on an air-conditioning system of air-cooled water with a chiller capacity of 9495 kJ and whose working fluid is R-22. Data is collected during the time when the water temperature is at a steady state of T = 14°C to T = 10°C and the superficial velocity of the water is set to a constant of 0.5 m/s. The experimental results showed that the T-junction installation on the air-conditioning system generates an increase in the refrigerating effect and Coefficient of Performance (COP) systems by 4%and 10%, respectively. The pressure ratio is also lower, causing the compressor to work more efficiently and reducing the electric power needed by the air-conditioning system.