DEVELOPMENT OF A SOFTWARE FOR THE PERFORMANCE PREDICTION OF A HEAT PUMP WORKING ON REVERSED BRAYTON CYCLE

Abstract

A heat pump extracts heat from a source and transfers it to a high temperature sink. Historically with the exception of some special applications, such as aircraft air conditioning the reversed Brayton Cycle has not been used for heat or cold generation mainly owing to its modest energy performance. The Progress of turbomachinery and the debate triggered by. environmentally unacceptable refrigerants promoted fresh interest in its potential merits. In the present, work analysis of reversed Brayton cycle has been clone for regenerated and unregenerated cycles. A computer program has been developed to calculate the COPS and SHEs at various isentropic temperature ratios and to calculate the effect of source temperature on COP and SHE. By considering the progress of turbomachinery, it has been found out that potential exists in reversed Brayton cycle for quite reasonable COPS and Coefficient of performance around two should be achievable.