Exergetic assessment of direct-expansion solar-assisted heat pump systems: Review and modeling

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dc.contributor.authorKara O.
dc.contributor.authorUlgen K.
dc.contributor.authorHepbasli A.
dc.date.accessioned2019-10-26T23:57:28Z
dc.date.available2019-10-26T23:57:28Z
dc.date.issued2008
dc.departmentEge Üniversitesien_US
dc.description.abstractAlthough the idea of using a solar collector as the evaporator in the traditional heat pump cycle was first proposed in the year 1955, studies on the subject began in the late 70s. One of the keystones for obtaining sustainable development is also the use of exergy analysis. In this regard, the main objectives in doing the present study are twofold, namely (i) to review studies on direct-expansion solar-assisted heat pump systems (DX-SAHPs) and (ii) to present a mathematical model along with an illustrative example, which is used for heating an office space in Solar Energy Institute of Ege University, Izmir, Turkey, by floor heating with a DX-SAHP system. The system uses a 4 m2 bare flat-plate collector as the evaporator, while the working fluid is chosen to be R-22. Water is heated by the heat pump and heat is delivered to the office space by floor heating. Exergy equations for the system are derived, while exergy calculations are made. The exergy efficiency values for the individual components of the DX-SAHP system are found to range from 10.74% to 88.87%. It is expected that this study will be very beneficial to everyone involved or interested in the exergetic design, analysis and performance assessment of DX-SAHPs. © 2007 Elsevier Ltd. All rights reserved.en_US
dc.description.sponsorshipFundamental Research Fund of Shandong University Ege Üniversitesien_US
dc.description.sponsorshipThe authors would like to thank Ege University Research Fund for their financial support. --en_US
dc.identifier.doi10.1016/j.rser.2006.12.001
dc.identifier.endpage1401en_US
dc.identifier.issn1364-0321
dc.identifier.issn1364-0321en_US
dc.identifier.issue5en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage1383en_US
dc.identifier.urihttps://doi.org/10.1016/j.rser.2006.12.001
dc.identifier.urihttps://hdl.handle.net/11454/21026
dc.identifier.volume12en_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.relation.ispartofRenewable and Sustainable Energy Reviewsen_US
dc.relation.publicationcategoryMakale - Ulusal Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectDirect expansionen_US
dc.subjectExergy analysisen_US
dc.subjectSolar-assisted heat pumpen_US
dc.subjectSustainabilityen_US
dc.titleExergetic assessment of direct-expansion solar-assisted heat pump systems: Review and modelingen_US
dc.typeReview Articleen_US

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