Energy and exergy analysis of a modified three-stage auto-cascade refrigeration cycle using low-GWP refrigerants for sustainable development. [PDF]
J Therm Anal Calorim, 2023 This study proposed a modified three-stage auto-cascade refrigeration cycle (MTARC) operating with environmentally benign zeotropic mixture of R1234yf/R170/R14 at the refrigeration temperature level of - 80 °C. Compared with the conventional three-stage auto-cascade refrigeration cycle (CTARC), MTARC incorporates an additional pressure regulator ...
Qin Y, Li N, Zhang H, Liu B.
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Energies, 2023 The cooling capacity needed by ultra-low temperature apparatus cannot be reached economically with a single vapor compression refrigeration cycle due to the constraint of the high compressor pressure ratio.
Zhenzhen Liu +3 more
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Development Status of Auto-cascade Refrigeration Technology
Zhileng xuebao, 2015 As a refrigeration technology with wide-temperature district, auto-cascade refrigeration has a very broad application prospect in the refrigeration and cryogenic field.
Liu Pengpeng +3 more
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Study on Mixed Refrigerants Selecting and Matching of a Four Stage Auto-cascade Refrigeration
Zhileng xuebao, 2013 The selection and mixture ratio of the mixed refrigerants are important to a multistage auto-cascade refrigeration system. A simulation method was found for the mixed refrigerants selection and ratio calculation by using the commercial software REFPROP8 ...
Zhao Wei +4 more
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Study on Application of Double-pipe Condenser for Auto-cascade Refrigeration
Zhileng xuebao, 2014 Auto-cascade refrigeration system is widely used to obtain low temperature environment between -40 ℃ ~ -150 ℃. Double-pipe condenser is commonly regarded for condensing equipment in auto-cascade refrigeration system, its characteristics and structure ...
Rui Shengjun +3 more
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Study of Water-cooled Auto-cascade Refrigeration Cycle with a Low Temperature of﹣60 ℃
Zhileng xuebao, 2015 A new water-cooled auto-cascade refrigeration cycle(WACR) using a binary refrigerant mixture is presented, which adopts a condenser-phase separator instead of a condenser and an evaporative separator in traditional auto-cascade refrigeration cycle.
Yang Yongan, Yang Zhao, Liu Bin
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Composition Change Characteristics of Non-azeotropic Mixturesof Auto- cascade Refrigeration System
Zhileng xuebao, 2016 The condensation process of non-azeotropic mixed refrigerant is a isobaric process. Meanwhile, the concentrations of vapor and liquid continuously change.
Rui Shengjun, Zhang Hua, He Tao, Luo Hao
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Performance of a Small-sized Auto-cascade Refrigerator with a Fractionation Heat Exchanger
Zhileng xuebao, 2015 A fractionation heat exchanger was employed to improve the separation efficiency of CO2 and propane in the small-sized auto-cascade refrigeration cycle.
Zhang Li +5 more
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Molecular dynamics simulation of non-azeotropic refrigerants separation in auto-cascading refrigeration [PDF]
E3S Web of Conferences, 2019 The core problem of auto-cascading refrigeration is the separation of non-azeotropic refrigerants. The separation effect of mixed refrigerant directly determines the refrigeration effect of auto-cascading refrigeration system and the value of COP. The microscopic molecular dynamics simulation method is applied to the refrigeration system, and the ...
Zheng Dayu +3 more
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Theoretical gas phase compressibility factor of mixed refrigerants in auto-cascade refrigeration system [PDF]
Proceedings of the 5th International Conference on Advanced Design and Manufacturing Engineering, 2015 KEYWORD: auto -cascade; mixed refrigerants; gas phase compressibility factor; ratio of refrigerant ABSTRACT: The compressibility factor is solved using the RKS equation and the corresponding calculation program. Redlich-kwongSoave the numerical calculation method for solving the compressibility factor, R22 and CO2 is calculated and compare it with ...
Jie Li +7 more
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