bjective:To compare the performance of cryogenic refrigeration system using LNG wasted cold and ammonia cooling.Methods:The thermodynamic and economic models of the two systems were established by MATLAB. Under the basic parameters, the working medium concentration suitable for LNG low-temperature refrigeration system was selected, and the cold storage temperature and refrigeration capacity were changed respectively. The thermal economy of the two systems was compared and analyzed.Results:With the increase of ethylene glycol concentration, LNG mass flow, system power consumption and cold storage capacity increased, COP decreased, but ethylene glycol mass flow remained unchanged; With the increase of cold storage temperature, the system COP increased, while the working medium mass flow and power consumption decrease. Similarly, with the increase of refrigeration capacity, the mass flow and power consumption increase, while the COP of ammonia low-temperature refrigeration system remained unchanged and the COP of LNG low-temperature refrigeration system increased. In the range of 5~20 kW, the COP of LNG low-temperature refrigeration system was lower than that of ammonia low-temperature refrigeration system, and the opposite was true in the range of 20~30 kW. The comparison of economic performance showed that the investment cost of LNG cryogenic refrigeration system was much lower than that of ammonia cryogenic refrigeration system.Conclusion:Under the same working conditions, the thermodynamic and economic performance of the low-temperature refrigeration system using LNG wasted cold is better than that of the traditional ammonia low-temperature refrigeration system.

Publication Date


First Page


Last Page





[1] 詹仙争.新型环保制冷剂丙烷的性能及应用[J].化工生产与技术,2012,19(3):33-35.ZHAN Xian-zheng.Performance and application of new environmental protection refrigerant propane[J].Chemical Production and Technology,2012,19(3):33-35.
[2] MOSTAFA A,HASSANAIN M,ELGENDY E.An experimental study of R-454C pull-down performance as a drop-inrefrigerant in a walk-in cold store system[J].International Journal of Refrigeration,2021,130:170-178.
[3] 赵海波,吴坤,陈金,等.冷库用混合制冷剂性能研究[C]//第八届全国食品冷藏链大会论文集.北京:中国制冷学会,2012:4.ZHAO Hai-bo,WU Kun,CHEN Jin,et al.Study on the performance of mixed refrigerants for cold storage[C]//Proceedings of the 8th National Food Cold Chain Conference.Beijing:China Refrigeration Society,2012:4.
[4] CHOUDHARI C S,SAPALI S N.Performance investigation of natural refrigerant R290 as a substitute to R22 in refrigeration sys-tems[J].Energy Procedia,2017,109:346-352.
[5] 张建一,徐颖.国内外大中型冷库制冷剂的现状和发展动向[J].制冷学报,2009,30(4):51-57.ZHANG Jian-yi,XU Ying.Current situation and development trend of refrigerants in large and medium-sized cold storage at home and abroad[J].Journal of Refrigeration,2009,30(4):51-57.
[6] PACHAI A C,齐晓霞,奚晔,等.氨制冷系统的安全设计和维护分析[J].制冷技术,2014,34(3):1-7.PACHAI A C,QI Xiao-xia,XI Ye,et al.Safety design and maintenance analysis of ammonia refrigeration system[J].Refrigeration Technology,2014,34(3):1-7.
[7] YAN Ping,WILLIAM Yang,LIU Qin,et al.Application tests of a new-type LNG rapid gasification unit[J].Natural Gas Industry B,2017,4(1):25-29.
[8] 王志远,盛伟.制冷原理与应用[M].北京:机械工业出版社,2018.WANG Zhi-yuan,SHENG Wei.Refrigeration principle and application[M].Beijing:China Machine Press,2018.
[9] 常嘉琳,唐培亮.乙二醇水溶液作为冷/热媒的应用[J].制冷与空调,2013,13(5):84-87.CHANG Jia-lin,TANG Pei-liang.Application of glycol aqueous solution as cooling/heating medium[J].Refrigeration and Air Conditioning,2013,13(5):84-87.
[10] 刘光启,马连湘,向曙光.化学化工物性数据手册[M].北京:化学工业出版社,2012:541-583.LIU Guang-qi,MA Lian-xiang,XIANG Shu-guang.Data manual of chemical properties[M].Beijing:Chemical Industry Press,2012:541-583.
[11] 闫双,张晓.化工离心泵扬程的选择[J].化工设计通讯,2018,44(8):114.YAN Shuang,ZHANG Xiao.Selection of chemical centrifugal pump head[J].Chemical Design Communication,2018,44(8):114.
[12] 李坤,李俊明,马进,等.大型冷库中不同制冷系统能效对比的理论分析[J].冷藏技术,2020,43(4):19-24.LI Kun,LI Jun-ming,MA Jin,et al.Theoretical analysis of energy efficiency comparison of different refrigeration systems in large refrigerators[J].Refrigeration Technology,2020,43(4):19-24.
[13] JIANG Run-hua,YIN Hui-bin,PENG Ke-wen,et al.Multi-objective optimization,design and performance analysis of an advanced trigenerative micro compressed air energy storage system[J].Energy Convers Manage,2019,186(1):323-333.
[14] RASHIDI H,KHORSHIDI J.Exergoeconomic analysis and optimization of a solar based multigeneration system using multiobjective differential evolution algorithm[J].Journal of Cleaner Production,2018,170:978-990.
[15] RAZMI A,SOLTANI M,AGHANAJAFI C,et al.Thermodynamic and economic investigation of a novel integration of the absorption recompression refrigeration system with compre-ssed air energy storage(CAES)[J].Energy Conversion and Management,2019,187:262-273.
[16] LI Rui-xiong,WANG Huan-ran,YAO Er-ren,et al.Thermo-economic comparison and parametric optimizations among two compressed air energy storage system based on kalina cycle and ORC[J].Energies,2016,10:1-19.
[17] EBADOLLAHI M,ROSTAMZADEH H,PEDRAM M Z,et al.Proposal and assessment of a new geothermal based multigeneration system for cooling,heating,power,and hydrogen production,using LNG cold energy recovery[J].Renewable Energy,2019,135:66-87.
[18] SANAYE S,SHIRAZI A.Four E analysis and multi-objective optimization of an ice thermal energy storage for air-conditioning applications[J].International Journal of Refrigeration,2013,36(3):828-841.
[19] KESHTKAR M M,TALEBIZADEH P.Multi-objective optimization of cooling water package based on 3E analysis:A case study[J].Energy,2017,134:840-849.
[20] 吴集迎,马益民.利用LNG梯级冷能的冷库系统构建与载冷剂选择[J].集美大学学报(自然科学版),2012,17(2):126-130.WU Ji-ying,MA Yi-min.Construction of cold storage system using LNG cascade cold energy and selection of refrigerant[J].Journal of Jimei University(Natural Science Edition),2012,17(2):126-130.
[21] SHINOZAWA H,HIROOKA T.Power generation using cold potential of LNG in multicomponent fluid Rankin cycle[J].Advance in Cryogeny,1981,7:971-978.
[22] XUE Xiao-di,GUO Cong,DU Xiao-ze,et al.Thermodynamic analysis and optimization of a two-stage organic Rankine cycle for liquefied natural gas cryogenic exergy recovery[J].Energy,2015,83:778-787.
[23] 董建锴,黄顺,李硕,等.LNG冷能用于冷库制冷性能模拟研究[J].哈尔滨工业大学学报,2017,49(2):103-108.DONG Jian-kai,HUNG Shun,LI Shuo,et al.Simulation study on refrigeration performance of LNG cold energy in cold storage[J].Journal of Harbin Institute of Technology,2017,49(2):103-108.

Included in

Food Science Commons



To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.