Analysis of a combined Rankine–vapour–compression refrigeration cycle

Improving Energy Efficiency of a Refrigeration System with a Rankine Cycle and an Expander

“…A different definition of COP, which calculates the ratio between the cooling capacity and the input heat flux, is sometimes used to quantify the efficiency of an integrated VC-RC system [6][7][8][9]. This definition is useful when the size of the VC system is designed according to the amount of input heat available.…”

“…Another attractive method that is recently proposed to reduce energy consumption of air conditioning and refrigeration systems is to use waste heat to supply power for the compressor with a Rankine cycle (RC) [6]. A schematic diagram of a RC system is shown in Fig.…”

Transcritical organic Rankine vapor compression refrigeration system for intercity bus air-conditioning using engine exhaust heat

“…Aphornratana and Sriveerakul [12] used a piston-cylinder system for expanderecompressor combination and obtained COP values of 0.25 for generator, condenser and evaporator temperatures of 60 C, 35 C and 5 C, respectively. Jeong and Kang [13] analyzed coupled compressor-turbine system with different working fluids and recommended R245fa as the most promising refrigerant.…”

Thermodynamic analysis of a combined organic Rankine cycle and vapor compression cycle system activated with low temperature heat sources using low GWP fluids

“…Combined ORCeVCC systems in previous publications have used various working fluids: chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs) and hydrofluorocarbons (HFCs) [15,16].…”