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Flat tube heat exchangers – direct and indirect noise levels in heat pump applications
RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Klimatisering och installationsteknik.
RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Sveriges tekniska forskningsinstitut / Akustik (Eta).ORCID-id: 0000-0003-2673-0688
RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Klimatisering och installationsteknik.
RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Klimatisering och installationsteknik.
Vise andre og tillknytning
2014 (engelsk)Inngår i: Applied Thermal Engineering, Vol. 66, nr 5, s. 104-112Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

In the outdoor unit of an air-source heat pump the fan is a major noise source. The noise level from the fan is dependent on its state of operation: high air-flow and high pressure drop often result in higher noise levels. In addition, an evaporator that obstructs an air flow is a noise source in itself, something that may contribute to the total noise level. To be able to reduce the noise level, heat exchanger designs other than the common finned round tubes were investigated in this study. Three types of heat exchanger were evaluated to detect differences in noiselevel and air-side heat transfer performance at varying air flow. The measured sound power level from all the heat exchangers was low in comparison to the fan sound power level (directeffect). However, the heat exchanger design was shown to have an important influence on the sound power level from the fan (indirect effect). One of the heat exchangers with flat tubes was found to have the lowest sound power level, both direct and indirect, and also the highest heat transfer rate. This type of flat tube heat exchanger has the potential to reduce the overall noise level of a heat pump while maintaining heat transfer efficiency.

sted, utgiver, år, opplag, sider
2014. Vol. 66, nr 5, s. 104-112
HSV kategori
Identifikatorer
URN: urn:nbn:se:ri:diva-6617DOI: 10.1016/j.applthermaleng.2014.02.002Scopus ID: 2-s2.0-84898909466Lokal ID: 16421OAI: oai:DiVA.org:ri-6617DiVA, id: diva2:964456
Tilgjengelig fra: 2016-09-08 Laget: 2016-09-08 Sist oppdatert: 2019-08-09bibliografisk kontrollert

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