Recent Advances in Ejector-Enhanced Vapor Compression Heat Pump and Refrigeration Systems—A Review

The incorporation of ejectors into heat pump and refrigeration cycles has been the subject of growing interest, largely due to their simple structure, high reliability, and cost-effectiveness. This paper investigates the recent advancements in novel design concepts of ejector-enhanced vapor compress...

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Published inEnergies (Basel) Vol. 17; no. 16; p. 4043
Main Authors Gruber, Sven, Rola, Klemen, Urbancl, Danijela, Goričanec, Darko
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.08.2024
Subjects
Alternative energy sources
Biogas
Carbon
Climate change
Efficiency
ejector
Emissions
Energy industry
Energy resources
Fuel cells
Heat
heat pump
Heating
refrigeration
Refrigeration equipment
Renewable resources
review
Sustainable development
vapor compression system
Online AccessGet full text
ISSN1996-1073
1996-1073
DOI10.3390/en17164043

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Abstract The incorporation of ejectors into heat pump and refrigeration cycles has been the subject of growing interest, largely due to their simple structure, high reliability, and cost-effectiveness. This paper investigates the recent advancements in novel design concepts of ejector-enhanced vapor compression heat pump and refrigeration cycles. An overview of novel single-stage and two-stage compression cycles utilizing a single or multiple ejectors is provided. First, the system setup, operational principles, description, and figures of the existing schemes are provided. Second, the main results, such as the coefficient of performance (COP), volumetric heating capacity and exergy destruction, are discussed. In conclusion, the paper presents a coherent summary of the current developments, future prospects, and the current knowledge gap. A plethora of research is present in developing theoretical systems with high efficiency. However, experimental tests for real-life implementations are limited. This review aims to provide the reader with an overview of recent theoretical and experimental studies.
AbstractList The incorporation of ejectors into heat pump and refrigeration cycles has been the subject of growing interest, largely due to their simple structure, high reliability, and cost-effectiveness. This paper investigates the recent advancements in novel design concepts of ejector-enhanced vapor compression heat pump and refrigeration cycles. An overview of novel single-stage and two-stage compression cycles utilizing a single or multiple ejectors is provided. First, the system setup, operational principles, description, and figures of the existing schemes are provided. Second, the main results, such as the coefficient of performance (COP), volumetric heating capacity and exergy destruction, are discussed. In conclusion, the paper presents a coherent summary of the current developments, future prospects, and the current knowledge gap. A plethora of research is present in developing theoretical systems with high efficiency. However, experimental tests for real-life implementations are limited. This review aims to provide the reader with an overview of recent theoretical and experimental studies.
Audience Academic
Author Urbancl, Danijela
Gruber, Sven
Rola, Klemen
Goričanec, Darko
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Snippet The incorporation of ejectors into heat pump and refrigeration cycles has been the subject of growing interest, largely due to their simple structure, high...
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SubjectTerms Alternative energy sources
Biogas
Carbon
Climate change
Efficiency
ejector
Emissions
Energy industry
Energy resources
Fuel cells
Heat
heat pump
Heating
refrigeration
Refrigeration equipment
Renewable resources
review
Sustainable development
vapor compression system
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Title Recent Advances in Ejector-Enhanced Vapor Compression Heat Pump and Refrigeration Systems—A Review
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