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Investigating the Efficiency of a Vertical Inline Drain Water Heat Recovery Heat Exchanger in a System Boosted with a Heat Pump
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Applied Thermodynamics and Refrigeration. (Uppvärmning och ventilationsteknik)ORCID iD: 0000-0003-3194-1762
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Applied Thermodynamics and Refrigeration.ORCID iD: 0000-0003-3896-2443
2014 (English)In: Energy and Buildings, ISSN 0378-7788, E-ISSN 1872-6178, Vol. 80, 7-16 p.Article in journal (Refereed) Published
Abstract [en]

In the present study, the performance of a vertical inline drain water heat recovery heat exchanger is investigated. The system recovers the heat with the aid of a heat pump. To produce quality measurement data for the analysis special attention have been given to the calibration of sensors and the analysis of the propagation of uncertainty. The results from the analysis of the heat exchanger reveal that the contact resistance between the two copper pipes and the heat resistances on the inside of the drain water pipe are the dominating resistances to the heat transfer. Investigation of the heat recovery ratio shows that the heat exchanger has the capability to recover more than 25% of the available heat in the drain water at the flow rates investigated.

Place, publisher, year, edition, pages
2014. Vol. 80, 7-16 p.
Keyword [en]
Drain water heat recovery, Heat pump heat recovery, Coiled heat exchanger, Falling film heat transfer
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:kth:diva-148779DOI: 10.1016/j.enbuild.2014.05.003ISI: 000343949400002Scopus ID: 2-s2.0-84901983207OAI: oai:DiVA.org:kth-148779DiVA: diva2:737046
Note

QC 20140825

Available from: 2014-08-11 Created: 2014-08-11 Last updated: 2017-12-05Bibliographically approved
In thesis
1. Investigating Different Opportunities to Increase Energy Efficiency in Buildings by Retrofitting Heat Pump Coupled Heat Recovery Systems
Open this publication in new window or tab >>Investigating Different Opportunities to Increase Energy Efficiency in Buildings by Retrofitting Heat Pump Coupled Heat Recovery Systems
2014 (English)Doctoral thesis, comprehensive summary (Other academic)
Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology, 2014. vii, 117 p.
Series
TRITA-REFR, ISSN 1102-0245 ; 14:01
National Category
Energy Engineering
Research subject
Energy Technology
Identifiers
urn:nbn:se:kth:diva-148784 (URN)978-91-7595-214-7 (ISBN)
Public defence
2014-09-05, Kollegiesalen, Brinellvägen 8, KTH, Sockholm, 09:00 (English)
Opponent
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Note

QC 20140825

Available from: 2014-08-25 Created: 2014-08-11 Last updated: 2014-08-25Bibliographically approved

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Wallin, JörgenClaesson, Joachim

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