Fixing Efficiency Values by Unfixing Compressor Speed: Dynamic Test Method for Heat Pumps

The growing market penetration of heat pumps indicates the need for a performance test method that better reflects the dynamic behavior of heat pumps. In this contribution, we developed and implemented a dynamic test method for the evaluation of the seasonal performance of heat pumps by means of lab...

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Main Authors: Carsten Palkowski, Andreas Zottl, Ivan Malenkovic, Anne Simo
Format: Article
Language:English
Published: MDPI AG 2019-03-01
Series:Energies
Subjects:
Online Access:http://www.mdpi.com/1996-1073/12/6/1045
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author Carsten Palkowski
Andreas Zottl
Ivan Malenkovic
Anne Simo
author_facet Carsten Palkowski
Andreas Zottl
Ivan Malenkovic
Anne Simo
author_sort Carsten Palkowski
collection DOAJ
description The growing market penetration of heat pumps indicates the need for a performance test method that better reflects the dynamic behavior of heat pumps. In this contribution, we developed and implemented a dynamic test method for the evaluation of the seasonal performance of heat pumps by means of laboratory testing. Current standards force the heat pump control inactive by fixing the compressor speed. In contrast, during dynamic testing, the compressor runs unfixed while the heat pump is subjected to a temperature profile. The profile consists of the different outdoor temperatures of a typical heating season based on the average European climate and also includes temperature changes to reflect the dynamic behavior of the heat pump. The seasonal performance can be directly obtained from the measured heating energy and electricity consumption making subsequent data interpolation and recalculation with correction factors obsolete. The method delivers results with high precision and high reproducibility and could be an appropriate method for a fair rating of heat pumps.
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spelling doaj.art-d16c2f34e1d448d79c55e809313869db2022-12-22T04:03:41ZengMDPI AGEnergies1996-10732019-03-01126104510.3390/en12061045en12061045Fixing Efficiency Values by Unfixing Compressor Speed: Dynamic Test Method for Heat PumpsCarsten Palkowski0Andreas Zottl1Ivan Malenkovic2Anne Simo3BAM Bundesanstalt für Materialforschung und -Prüfung, 12205 Berlin, GermanyAIT Austrian Institute of Technology GmbH, Vienna 1210, AustriaFraunhofer Institute for Solar Energy Systems ISE, 79110 Freiburg, GermanyBAM Bundesanstalt für Materialforschung und -Prüfung, 12205 Berlin, GermanyThe growing market penetration of heat pumps indicates the need for a performance test method that better reflects the dynamic behavior of heat pumps. In this contribution, we developed and implemented a dynamic test method for the evaluation of the seasonal performance of heat pumps by means of laboratory testing. Current standards force the heat pump control inactive by fixing the compressor speed. In contrast, during dynamic testing, the compressor runs unfixed while the heat pump is subjected to a temperature profile. The profile consists of the different outdoor temperatures of a typical heating season based on the average European climate and also includes temperature changes to reflect the dynamic behavior of the heat pump. The seasonal performance can be directly obtained from the measured heating energy and electricity consumption making subsequent data interpolation and recalculation with correction factors obsolete. The method delivers results with high precision and high reproducibility and could be an appropriate method for a fair rating of heat pumps.http://www.mdpi.com/1996-1073/12/6/1045heat pumpdynamic test methodseasonal performance factorvariable frequency drivefield approximationenergy labelair source heat pumpground source heat pump
spellingShingle Carsten Palkowski
Andreas Zottl
Ivan Malenkovic
Anne Simo
Fixing Efficiency Values by Unfixing Compressor Speed: Dynamic Test Method for Heat Pumps
Energies
heat pump
dynamic test method
seasonal performance factor
variable frequency drive
field approximation
energy label
air source heat pump
ground source heat pump
title Fixing Efficiency Values by Unfixing Compressor Speed: Dynamic Test Method for Heat Pumps
title_full Fixing Efficiency Values by Unfixing Compressor Speed: Dynamic Test Method for Heat Pumps
title_fullStr Fixing Efficiency Values by Unfixing Compressor Speed: Dynamic Test Method for Heat Pumps
title_full_unstemmed Fixing Efficiency Values by Unfixing Compressor Speed: Dynamic Test Method for Heat Pumps
title_short Fixing Efficiency Values by Unfixing Compressor Speed: Dynamic Test Method for Heat Pumps
title_sort fixing efficiency values by unfixing compressor speed dynamic test method for heat pumps
topic heat pump
dynamic test method
seasonal performance factor
variable frequency drive
field approximation
energy label
air source heat pump
ground source heat pump
url http://www.mdpi.com/1996-1073/12/6/1045
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