干旱区生态环境知识资源中心(Arid): An annual energetic evaluation of booster and parallel refrigeration systems with R744 in food retail supermarkets. A Chilean perspective

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DOI	10.1016/j.ijrefrig.2021.10.010
	An annual energetic evaluation of booster and parallel refrigeration systems with R744 in food retail supermarkets. A Chilean perspective
	Sacasas, Daniel; Vega, Javier; Cuevas, Cristian
通讯作者	Sacasas, D (corresponding author), Univ Concepcion, Fac Ingn, Dept Ingn Mecan, Casilla 160-C,Postal Code 41, Concepcion, Chile.
来源期刊	INTERNATIONAL JOURNAL OF REFRIGERATION
ISSN	0140-7007
EISSN	1879-2081
出版年	2022
卷号	133 页码:326-336
英文摘要	In the supermarket refrigeration industry, the natural refrigerant R744 (CO2) has been designated as a long-term solution to mitigate HFC refrigerants' global warming. In this study, booster (BB) and parallel compression (BP) configurations were assessed through a detailed and novel energetic modelling, which includes a semi-empirical four-parameter for reciprocating and scroll compressor models and a one-zone model for the gas cooler, and a three zones model for the condenser. Model validation showed a mean deviation of 4.23% against reference values. The COP of the BP configuration was 14% higher than BB, for ambient temperatures between 0 degrees C and 35 degrees C. This study presents for the first time, the simulation of transcritical systems with R744 throughout out different locations in Chile. Simulation results of fourteen Chilean cities showed that the BP system allows reducing the annual energy consumption between 4% for very cold climates and 12% for desert regions. An economic analysis revealed that only in most desert and warm climates (Arica, Antofagasta and Santiago), the differential capital expenditures of the BP system over the BB were recovered within 20 years with the operational expenditure savings. For the rest of the evaluated cities, the BB system is a more profitable solution than BP. The study aims to support the introduction of refrigeration system with R744 in Chilean supermarkets.
英文关键词	Transcritical CO 2 unit gas cooler condenser compressor annual simulation
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000729392500005
WOS关键词	HEAT-PUMP ; PERFORMANCE EVALUATION ; NUMERICAL-SIMULATION ; CO2 ; WATER ; COMPRESSOR ; EJECTOR ; CONFIGURATIONS ; INTEGRATION ; DESIGNS
WOS类目	Thermodynamics ; Engineering, Mechanical
WOS研究方向	Thermodynamics ; Engineering
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/374394
作者单位	[Sacasas, Daniel; Cuevas, Cristian] Univ Concepcion, Fac Ingn, Dept Ingn Mecan, Casilla 160-C,Postal Code 41, Concepcion, Chile; [Vega, Javier] Univ Liege, Fac Appl Sci, Thermodynam Lab, Allee Decouverte 17, B-4000 Liege, Belgium
推荐引用方式 GB/T 7714	Sacasas, Daniel,Vega, Javier,Cuevas, Cristian. An annual energetic evaluation of booster and parallel refrigeration systems with R744 in food retail supermarkets. A Chilean perspective[J],2022,133:326-336.
APA	Sacasas, Daniel,Vega, Javier,&Cuevas, Cristian.(2022).An annual energetic evaluation of booster and parallel refrigeration systems with R744 in food retail supermarkets. A Chilean perspective.INTERNATIONAL JOURNAL OF REFRIGERATION,133,326-336.
MLA	Sacasas, Daniel,et al."An annual energetic evaluation of booster and parallel refrigeration systems with R744 in food retail supermarkets. A Chilean perspective".INTERNATIONAL JOURNAL OF REFRIGERATION 133(2022):326-336.