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Theoretical analysis of a combined power and ejector refrigeration cycle using zeotropic mixture
Tianjin University, China.
Tianjin University, China.
Mälardalen University, School of Business, Society and Engineering, Future Energy Center. (Energy Technology)ORCID iD: 0000-0002-6279-4446
University of Stavanger, Norway.
2015 (English)In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 160, 912-919 p.Article in journal (Refereed) Published
Abstract [en]

A theoretical study on a combined power and ejector refrigeration cycle using zeotropic mixture isobutane/pentane is carried out. The performances of different mixture compositions are compared. An exergy analysis is conducted for the cycle. The result reveals that most exergy destruction happens in the ejector, where more than 40% exergy is lost. The heat exchange in generator causes the second largest exergy loss, larger than 28%. As the mass fraction of isobutane changes ranges from 100% to 0%, the relative exergy destruction of each component is also changing. And mixture isobutane/pentane (50/50) has the maximum exergy efficiency of 7.83%. The parametric analysis of generator temperature, condenser temperature and evaporator temperature for all the mixtures shows that, all these three thermodynamic parameters have a strong effect on the cycle performance.

Place, publisher, year, edition, pages
2015. Vol. 160, 912-919 p.
National Category
Engineering and Technology Energy Engineering
Identifiers
URN: urn:nbn:se:mdh:diva-29873DOI: 10.1016/j.apenergy.2015.05.001ISI: 000364890700089Scopus ID: 2-s2.0-84946089925OAI: oai:DiVA.org:mdh-29873DiVA: diva2:878818
Available from: 2015-12-09 Created: 2015-12-09 Last updated: 2016-02-25Bibliographically approved

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Citation style
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