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1 Cascade refrigeration system is a good solution for low-temperature refrigeration system that can not be achieved by single-stage refrigeration systems, enabling optimum compressor efficiency, and reduce compressor exhaust temperature and its compression ratio. In the cascade refrigeration system, the system of HFC refrigerant is applied to the main circuit (mid-high temperature), and R744 (CO2) refrigeration system is applied to the low temperature overlay circuit, two individual circuits exchange heat through a cascade heat exchanger. Furthermore, SLHE (suction line heat exchanger) are commonly designed in R744 (CO2) refrigeration system, which increases subcooling and superheating of R744(CO2), improve the efficiency of evaporator, and reduce the risk of compressor failure (refrigerant will be completely evaporated before entering refrigerant compressor). KAORI C series high pressure BPHE is the best solution for such a system design, with the advantage of high heat transfer, compact size, and light weight. *KAORI K Series and R Series standard plate heat exchangers could be applied as economizer, SLHE, and heat recovery BPHE of the HFC refrigerant system. CO2 Refrigeration System Subcritical Cascade system Heat Recovery Condenser Oil Separator Compressor Compressor Compressor Receiver Evaporative Condenser Oil Separator Compressor Compressor Compressor Accumulator High Pressure HFC Gas High Pressure HFC Liquid Low Pressure HFC Gas High Pressure R744 Gas(Subcritical) High Pressure R744 Liquid(Subcritical) Low Pressure R744 Gas(Subcritical) Evaporator EEV Evaporator EEV Evaporator EEV SLHE *SLHE: Suction Line Heat Exchanger Model Selection Chart for Evaporative Condenser Capacity Model kW C095-70 30 C095-100 40 C200M-50 50 C200M-60 60 C200M-70 70 Type R404A Primary Side Max. Working Pressure (bar) 30 Evaporation Temp. Type (°C) R744 -20 (CO2) Secondary Side Max. Working Pressure (bar) 70 Condensation Temp. (°C) -10 HFC Cycle Receiver CO2 Cycle *Suction line heat exchanger could be designed according to different working conditions. *Kaori reserves the right to make changes without prior notice.PDF Image | Kaori Heat Pumps for CO2
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CO2 Organic Rankine Cycle Experimenter Platform The supercritical CO2 phase change system is both a heat pump and organic rankine cycle which can be used for those purposes and as a supercritical extractor for advanced subcritical and supercritical extraction technology. Uses include producing nanoparticles, precious metal CO2 extraction, lithium battery recycling, and other applications... More Info
Heat Pumps CO2 ORC Heat Pump System Platform More Info
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