Employing booster heat pumps (BHP) in district heating systems can provide a way to use low temperature sources for as they allow locally increasing the water on user side where necessary. Thereby, it decreased loss of system. This experimental study investigated steady state thermal behavior BHP cases with different forward and flow rates side. The unit used R134a working fluid. results reveal...

Thermal energy storage through phase change material has been used for wide applications in the field of air conditioning and refrigeration. The specific use this thermal during low demand release peak loads with potential to provide savings due this. principle latent heat using materials (PCMs) can be incorporated into a system suitable deep freezers. evaporator is covered another box which ca...

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 l...

A new method is proposed to control the evaporator's superheat with an electronic-expansion-valve (EEV). The conventional PID control with invariable parameters can not receive sound performance because of the variation of evaporators' characteristic parameter under disturbances. To solve this problem, fuzzy algorithm is utilized to adjust parameters ofPID control on line, two practical methods...

This paper deals with a multi-objective optimization of a novel micro solar driven combined power and ejector refrigeration system (CPER). The system combines an organic Rankine cycle (ORC) with an ejector refrigeration cycle to generate electricity and cold capacity simultaneously. Major thermodynamic parameters, namely turbine inlet temperature, turbine inlet pressure, turbine back pressure, ...