An experimental exergetic comparison of four different heat pump systems working at same conditions: As air to air, air to water, water to water and water to air

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dc.authorid56419758300
dc.authorid6602619073
dc.authorid6602825059
dc.authorid55887326400
dc.contributor.authorÇakir U.
dc.contributor.authorÇomakli K.
dc.contributor.authorÇomakli T.
dc.contributor.authorKarsli S.
dc.date.accessioned20.04.201910:49:12
dc.date.accessioned2019-04-20T21:44:23Z
dc.date.available20.04.201910:49:12
dc.date.available2019-04-20T21:44:23Z
dc.date.issued2013
dc.departmentBayburt Üniversitesien_US
dc.description.abstractIn this study, we designed a multifunctional heat pump system using just one scroll compressor and which can be run in four different modes, namely air to air, air to water, water to water and water to air, in order to make an experimental energetic and exergetic performance comparison. Experimental system consists of two condensers and two evaporators and uses R22 as working fluid. One of the evaporators and condensers uses water and the others use air as heat source/sink. Heating capacities of four heat pump types are equal to each other. It is realized by adjusting the mass flow rate and temperature level of external fluid of condenser. Results show that the heat pump unit which has the maximum COP (coefficient of performance) value is water to air type with 3.94 and followed by water to water type with 3.73, air to air type with 3.54 and air to water type with 3.40. Ranking of four heat pump types with respect to their mean exergy efficiency is as follows; water to air type with 30.23%, air to air type with 30.22%, air to water type with 24.77% and water to water type with 24.01%. Exergy destruction rates of the systems were investigated in this study and the results revealed that the heat pump type which has the maximum exergy destruction is air to air type with 2.93kW. The second highest one is air to water type with 2.84kW. The third highest one is water to air type with 2.64kW and last one is water to water type with 2.55kW. It is understood that the temperature of the evaporator external fluid affects the exergetic efficiency of the system more than the mass flow rate. In contrast to the previous, the dominant parameter which has more important effect on the exergy destruction of the heat pump unit is the mass flow rate of evaporator external fluid. © 2013 Elsevier Ltd.en_US
dc.identifier.doi10.1016/j.energy.2013.06.014
dc.identifier.endpage219
dc.identifier.issn0360-5442
dc.identifier.scopus2-s2.0-84881103020en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage210
dc.identifier.urihttps://dx.doi.org/10.1016/j.energy.2013.06.014
dc.identifier.urihttps://hdl.handle.net/20.500.12403/845
dc.identifier.volume58
dc.identifier.wosWOS:000323534900024en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Ltd
dc.relation.ispartofEnergyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectCOP
dc.subjectExergy analysis
dc.subjectHeat pump
dc.subjectEvaporators
dc.subjectExergy
dc.subjectPipe flow
dc.subjectCoefficient of Performance
dc.subjectCOP
dc.subjectExergetic efficiency
dc.subjectExergetic performance
dc.subjectExergy Analysis
dc.subjectExergy destructions
dc.subjectExergy efficiencies
dc.subjectHeat pumps
dc.subjectHeat pump systems
dc.subjectcompression
dc.subjectcondensation
dc.subjectevaporation
dc.subjectexergy
dc.subjectexperimental study
dc.subjectpump
dc.subjecttemperature effect
dc.subjectCOP
dc.subjectExergy analysis
dc.subjectHeat pump
dc.subjectEvaporators
dc.subjectExergy
dc.subjectPipe flow
dc.subjectCoefficient of Performance
dc.subjectCOP
dc.subjectExergetic efficiency
dc.subjectExergetic performance
dc.subjectExergy Analysis
dc.subjectExergy destructions
dc.subjectExergy efficiencies
dc.subjectHeat pumps
dc.subjectHeat pump systems
dc.subjectcompression
dc.subjectcondensation
dc.subjectevaporation
dc.subjectexergy
dc.subjectexperimental study
dc.subjectpump
dc.subjecttemperature effect
dc.titleAn experimental exergetic comparison of four different heat pump systems working at same conditions: As air to air, air to water, water to water and water to airen_US
dc.typeArticleen_US

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