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A Review on Technolog.es for the Use of CO2 as a Working.Fluid in Refrig.ration and Power Cycles

Energ. and Power Eng.neering 2024年第6期16卷 217-256页

作者： Orelien T. Boupda Hyacinthe D. Tessemo Isidore B. Nkounda Fong.ng.francklin g. nyami Frederic Lontsi Thomas Djiako Laboratory of Energ. Higher National Polytechnic School of Douala University of Douala Douala Cameroon Institut Ucac-Icam Douala Cameroon Department of Energ. and Mechanical Eng.neering ISTA-IUG University of Ngaoundere Ngaoundere Cameroon

The use of carbon dioxide as a working.fluid has been the subject of extensive studies in recent years, particularly in the field of refrig.ration where it is at the heart of research to replace CFC and HCFC. Its thermodynamic properties make it a fluid of choice in the efficient use of energ. at low and medium temperatures in eng.ne cycles. However, the performance of transcritical CO2 cycles weakens under hig. temperature and pressure conditions, especially in refrig.ration systems;On the other hand, this disadvantag. becomes rather interesting.in eng.ne cycles where CO2 can be used as an alternative to the org.nic working.fluid in small and medium-sized electrical systems for low quality or waste heat sources. In order to improve the performance of systems operating.with CO2 in the field of refrig.ration and electricity production, research has made it possible to develop several concepts, of which this article deals with a review of the state of the art, followed by analyzes in-depth and critical of the various developments to the most recent modifications in these fields. Detailed discussions on the performance and technical characteristics of the different evolutions are also hig.lig.ted as well as the factors affecting.the overall performance of the systems studied. Finally, perspectives on the future development of the use of CO2 in these different cycles are presented.

关键词： Refrig.ration Cycle Power Cycle System Performance Transcritical CO2 Cycles Working.Fluid

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