A numerical investigation on refrigeration vapor cycles, operating with carbon-dioxide and a single-stage heat-powered sorption compressor

IF 3.5 2区工程技术 Q1 ENGINEERING, MECHANICAL

International Journal of Refrigeration-revue Internationale Du Froid Pub Date : 2025-01-30 DOI:10.1016/j.ijrefrig.2025.01.033

S. Iraqi, N. Tzabar

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Abstract

In recent decades we witness a surge in electricity consumption rates, thereby, a growing demand for electricity production and transmission. These trends yield escalating emissions, accelerating global warming and other deleterious environmental impacts. Heat powered cycles convert heat to work or to heat pumping and are, therefore, suitable for replacing the common electricity-driven cycles. A common heat source is solar radiation, however, waste heat, especially in industry, is widely available, and at a variety of temperatures. Replacing electricity consumption by available heat sources can significantly reduce the electricity generation demand and the required electricity transmission infrastructure.

Ongoing research on thermally driven sorption compressors is conducted in our research laboratory, aiming for several applications. Within the scope of this research stage, a single-stage sorption compressor for carbon dioxide is numerically investigated, based on a previously developed numerical model. Several sorption cell sizes with different operating conditions are investigated, and the conditions for obtaining maximum coefficient of performance and effectiveness are determined. The research proves the feasibility of harnessing the sorption compressor technology to refrigeration and air-conditioning systems. The presented performances aren't competitive with absorption refrigeration systems, yet; however, the outcomes of this research pave the way for performance improvements and turning the suggested technology to an attractive heat-powered refrigeration and air-conditioning technology.

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来源期刊

International Journal of Refrigeration-revue Internationale Du Froid 工程技术-工程：机械

CiteScore

7.30

自引率

12.80%

发文量

363

审稿时长

3.7 months

期刊介绍： The International Journal of Refrigeration is published for the International Institute of Refrigeration (IIR) by Elsevier. It is essential reading for all those wishing to keep abreast of research and industrial news in refrigeration, air conditioning and associated fields. This is particularly important in these times of rapid introduction of alternative refrigerants and the emergence of new technology. The journal has published special issues on alternative refrigerants and novel topics in the field of boiling, condensation, heat pumps, food refrigeration, carbon dioxide, ammonia, hydrocarbons, magnetic refrigeration at room temperature, sorptive cooling, phase change materials and slurries, ejector technology, compressors, and solar cooling. As well as original research papers the International Journal of Refrigeration also includes review articles, papers presented at IIR conferences, short reports and letters describing preliminary results and experimental details, and letters to the Editor on recent areas of discussion and controversy. Other features include forthcoming events, conference reports and book reviews. Papers are published in either English or French with the IIR news section in both languages.