Fixing Efficiency Values by Unfixing Compressor Speed: Dynamic Test Method for Heat Pumps
AbstractThe 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. View Full-Text
Share & Cite This Article
Palkowski, C.; Zottl, A.; Malenkovic, I.; Simo, A. Fixing Efficiency Values by Unfixing Compressor Speed: Dynamic Test Method for Heat Pumps. Energies 2019, 12, 1045.
Palkowski C, Zottl A, Malenkovic I, Simo A. Fixing Efficiency Values by Unfixing Compressor Speed: Dynamic Test Method for Heat Pumps. Energies. 2019; 12(6):1045.Chicago/Turabian Style
Palkowski, Carsten; Zottl, Andreas; Malenkovic, Ivan; Simo, Anne. 2019. "Fixing Efficiency Values by Unfixing Compressor Speed: Dynamic Test Method for Heat Pumps." Energies 12, no. 6: 1045.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.