Journal ArticleDOI
Progress in ejector-expansion vapor compression refrigeration and heat pump systems
TLDR
The use of an expansion energy recovery ejector has been given great concern owing to virtues of no moving elements, cost-effectiveness, high reliability, and comparable efficiency as mentioned in this paper.About:
This article is published in Energy Conversion and Management.The article was published on 2020-03-01. It has received 55 citations till now. The article focuses on the topics: Vapor-compression refrigeration & Heat pump.read more
Citations
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Journal ArticleDOI
Advanced high temperature heat pump configurations using low GWP refrigerants for industrial waste heat recovery: A comprehensive study
Carlos Mateu-Royo,Cordin Arpagaus,Adrián Mota-Babiloni,Joaquín Navarro-Esbrí,Stefan S. Bertsch +4 more
TL;DR: In this paper, the authors compared eight advanced cycle configurations and nine low global warming potential (GWP) refrigerants from an energetic, economic, and environmental comprehensive perspective to illustrate an optimum selection for different HTHP applications.
Journal ArticleDOI
Life cycle energy, emissions and cost evaluation of CO2 air source heat pump system to replace traditional heating methods for residential heating in China: System configurations
Baomin Dai,Qi Haifeng,Dou Wanbin,Shengchun Liu,Dan Zhong,Yang Haining,Victor Nian,Victor Nian,Ying Hao +8 more
TL;DR: In this paper, a new configuration of CO2 heat pump system integrated with vapor injection and dedicated mechanical subcooling (VIDMS) is proposed, and compared with five configurations of CO 2 heat pump systems and three traditional heating methods.
Journal ArticleDOI
Solar ejector cooling systems: A review
TL;DR: The most important aspects of the design, operation and performance of ejector devices and solar ejector cooling cycles are discussed and the most important conclusions are outlined.
Journal ArticleDOI
Life cycle techno-enviro-economic assessment of dual-temperature evaporation transcritical CO2 high-temperature heat pump systems for industrial waste heat recovery
TL;DR: In this paper , the authors proposed three transcritical CO2 high-temperature heat pump systems (Ej-Evap2-A, Ej-Emp2-B, and EjEpp2-C) by introducing the technique of dualtemperature evaporation realized with an ejector for cascade heat absorption from the heat source.
Journal ArticleDOI
Thermoeconomic analysis of CO2 Ejector-Expansion Refrigeration Cycle (EERC) for low-temperature refrigeration in warm climates
Bernardo Peris Pérez,Bernardo Peris Pérez,José Antonio Expósito Carrillo,Francisco José Sánchez de la Flor,José Manuel Salmerón Lissén,Andrés Morillo Navarro +5 more
TL;DR: In this paper, a CO2 Ejector-Expansion Refrigeration Cycle (EERC) was proposed to overcome the technical limitations to reach extreme pressure ratios using commercial compressors.
References
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Journal ArticleDOI
Fundamental process and system design issues in CO2 vapor compression systems
TL;DR: In this article, the authors present recent developments and state-of-the-art for transcritical CO2 cycle technology in various refrigeration, air-conditioning and heat pump applications, including discussion of properties and characteristics of CO2, cycle fundamentals, methods of high-side pressure control, thermodynamic losses, cycle modifications, component/system design, safety factors, and promising application areas.
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The Two-Phase Critical Flow of One-Component Mixtures in Nozzles, Orifices, and Short Tubes
Robert E. Henry,H.K. Fauske +1 more
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Ejector refrigeration: A comprehensive review
TL;DR: In this paper, a comprehensive literature review on ejector refrigeration systems and working fluids is presented, which deeply analyzes ejector technology and behavior, refrigerant properties and their influence over ejector performance.
Journal ArticleDOI
Experimental validation of a prototype ejector designed to reduce throttling losses encountered in transcritical R744 system operation
Stefan Elbel,Pega Hrnjak +1 more
TL;DR: Experiments confirmed that like in a conventional transcritical R744 system with expansion valve, the high-side pressure control integrated into the ejector could be used to maximize the system performance.
Journal ArticleDOI
Ejectors: applications in refrigeration technology
K. Chunnanond,Satha Aphornratana +1 more
TL;DR: A literature review on ejectors and their applications in refrigeration can be found in this article, where a number of studies are grouped and discussed in several topics, i.e. background and theory of ejector and jet refrigeration cycle, performance characteristics, working fluid and improvement of jet refrigerator.