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A new ejector refrigeration system with zeotropic mixtures
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Applied Thermodynamics and Refrigeration.
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Applied Thermodynamics and Refrigeration.ORCID iD: 0000-0002-9902-2087
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Applied Thermodynamics and Refrigeration.
2011 (English)In: 23RD IIR INTERNATIONAL CONGRESS OF REFRIGERATION, 2011, 2043-2050 p.Conference paper, Published paper (Refereed)
Abstract [en]

A new ejector refrigeration system (NERS) using zeotropic mixture is theoretical studied in the paper.R32/R134a, R32/R152a, R134a/R142b, R152a/R142b, R290/R600a and R600a/R600 are selected as theworking fluids in the analysis. The comparison between this NERS and the conventional ejector refrigerationsystem (CERS) is made under the same operating condition. It is found that this new system has higherCOPs than the CERS. The effect of operating conditions and the composition on the performance of this newsystem are presented. An exergy analysis is carried out to study the loss within each component of thesystem. It is observed that the irreversibility in the ejector represents more than 50% of the total exergy loss.This also emphasizes the necessity for good ejector design and manufacture.

Place, publisher, year, edition, pages
2011. 2043-2050 p.
Keyword [en]
Ejector, Refrigeration system, Zeotropic mixtures, Performance, Exergy
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:kth:diva-145023ISI: 000310485801001OAI: oai:DiVA.org:kth-145023DiVA: diva2:715766
Conference
The 23rd IIR International Congress of Refrigeration, Prague, Czech Republic, 2011
Note

QC 20140924

Available from: 2014-05-06 Created: 2014-05-06 Last updated: 2014-09-24Bibliographically approved

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Palm, Björn

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