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Exergy analysis and parameter study on a novel auto-cascade Rankine cycle
Energy, 2012Abstract A novel auto-cascade Rankine cycle (ARC) is proposed to reduce thermodynamics irreversibility and improve energy utilization. Like the Kalina cycle, the working fluid for the ARC is zeotropic mixture, which can improve the system efficiency due to the temperature slip that zeotropic mixtures exhibit during phase change.
Junjiang Bao, Li Zhao
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The Preliminary Study on Mixed Refrigerants of a Four-Stage Auto-Cascade Refrigeration
Applied Mechanics and Materials, 2013A four-stage auto-cascade refrigeration cycle is presented in this paper, the kind of mixed refrigerants is chosen and the proportion is simulated by using the commercial software NIST8.0 software. The optimized proportion of mixed refrigerants is gained through experiment, a method which combining software simulation and experiment to define mixed ...
Rui Xi Liu +4 more
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A potential auto-cascade absorption refrigeration system for pre-cooling of LNG liquefaction
Journal of Natural Gas Science and Engineering, 2015Abstract Low temperature cooling is required during production or recovery processes of the liquefied natural gas (LNG). An absorption refrigeration system for pre-cooling of LNG production or recovery, which can be powered by low-grade thermal energy and produce low temperature cooling, could provide great potential of energy saving by recovering ...
Yijian He +3 more
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Auto-cascade refrigeration systems: A key review with energetic and exergetic perspectives
Applied Thermal EngineeringAuto-cascade refrigeration (ACR) systems are known for their innovative solutions, especially suitable for low and ultra-low temperature applications. However, ACR cycles are not solely confined to refrigeration applications; they are also utilized in heating and electricity generation cycles. While the fact that this subject has been addressed in only
Karacayli, Ibrahim +2 more
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Advanced Materials Research, 2014
Non-azeotropic auto-cascade refrigeration system utilizes various components of different boiling refrigerant to get low-temperature. With R22, R23 and R14 as a non-azeotropic refrigerant auto-cascade refrigeration cycle system. Through the experimental study of non-azeotropic refrigerant charging and the ratio between the amount of charge, to analyze ...
Da Yu Zheng +4 more
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Non-azeotropic auto-cascade refrigeration system utilizes various components of different boiling refrigerant to get low-temperature. With R22, R23 and R14 as a non-azeotropic refrigerant auto-cascade refrigeration cycle system. Through the experimental study of non-azeotropic refrigerant charging and the ratio between the amount of charge, to analyze ...
Da Yu Zheng +4 more
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International Journal of Exergy
This study examines both conventional and advanced exergy analyses of a modified ejector-enhanced auto-cascade refrigeration (MEACR) cycle. Conventional exergy analysis shows that the proposed model significantly improves exergy efficiency compared to similar ejector-enhanced auto-cascade refrigeration cycles in the literature. Advanced exergy analysis
Karacayli, Ibrahim +2 more
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This study examines both conventional and advanced exergy analyses of a modified ejector-enhanced auto-cascade refrigeration (MEACR) cycle. Conventional exergy analysis shows that the proposed model significantly improves exergy efficiency compared to similar ejector-enhanced auto-cascade refrigeration cycles in the literature. Advanced exergy analysis
Karacayli, Ibrahim +2 more
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Thermodynamic analysis on a modified auto-cascade refrigeration cycle with a self-recuperator
International Journal of Refrigeration, 2022Jiarui Liu, Ye Liu, Gang Yan, Jianlin Yu
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The Comparative Analysis of R22 and R134a Applied in a Five-Stage Auto-Cascade Refrigeration System
Applied Mechanics and Materials, 2013The mixed refrigerants R22/R23/R14/R740/R728 and R134a/R23/R14/R740/R728 are used in a five-stage auto-cascade refrigeration system for study in this paper. Through theoretic comparison of high temperature stage refrigerant R22 and R134a and repeated experiments we can get the results that the discharge temperature of the refrigerant R134a can be ...
Wei Zhao +4 more
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Pressure optimization of an R600a-R1150 auto-cascade cycle for ultra-low temperature applications.
Auto-cascade systems is a widely employed in ultra-low refrigeration applications, particularly for preserving medical and biological samples. This cycle works with a mixture composed of refrigerants with distant normal boiling points which are fractionated inside the cycle and create two different currents. One with highest proportion of most volatileManel MARTÍNEZ-ANGELES +5 more
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