Thermal modelling and energy conservation studies on freon rankine cycle cooling system with regenerative heat exchanger

A review of solar thermo-mechanical refrigeration and cooling methods

“…The effects of operating conditions on the performance of SRCS have been studied by different researchers; [12,64,65,134,135]. Lower values of T c and higher values of T e are favorable for higher cooling efficiencies.…”

“…Also, for large size systems with high flow rates, turbines are more suitable". Among the reviewed literature, most of the studies preferred turbines as the expanders [67,68,134,136] over positive displacement expanders [12]. Aphornratana and Sriveerakul [12] conducted a theoretical analysis of an integrated ORC-VCC with a free piston expandercompressor (shown in Fig.…”

“…Kaushik et al [134] presented a thermodynamic analysis of a regenerative Rankine cooling system that uses Freon as the working fluid. It consists of two subsystems as shown in Fig.…”

“…There are two common arrangements of SRCS designs presented by different researchers. One configuration is using separate power and cooling cycles where the expander of the ORC and the compressor of the VCC are coupled mechanically [64,[66][67][68]134]. The other configuration is an integrated cycle, using a combined expander-compressor and one joint condenser for both cycles [12,65,135,136].…”

“…However, according to Grossman and Johannsen [14], considering the temperature range typically available from non-concentrating solar collectors, using water requires large and expensive equipment and the overall performance would be low. Many studies have been conducted on other working fluids for solar and other low grade heat source ORCs [64,65,68,134,135,[137][138][139][140].…”