Using identical mechanical hardware used in an automobile, a stationary test bench has been developed for an
automotive air conditioning system (AACS). However, a number of additional sensors have been used in the system
for an accurate assessment of its performance. The steady state performance of the system has been investigated for
three independent variables, namely the refrigerant charge level, the compressor speed and the speed of the
evaporator fan. Tests have been planned to estimate the performance of the individual components and to determine
a non-dimensional rating parameter to describe condenser performance. While the refrigerant flow rate is influenced
primarily by refrigerant charge level and compressor speed, the COP and cooling capacity depends on all the three
operating variables. The optimum operating condition with compressor and blower speed along with refrigerant
charge level has also been identified