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Modelling of a water-to-air variable capacity ground-source heat pump

Samuel Bouheret and Michel Bernier

Article (2018)

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Cite this document: Bouheret, S. & Bernier, M. (2018). Modelling of a water-to-air variable capacity ground-source heat pump. Journal of Building Performance Simulation, 11(3), p. 1-11. doi:10.1080/19401493.2017.1332686
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Abstract

The present work aims at presenting the development of a performance-based model of a water-to-air variable capacity ground-source heat pump. The main challenge is to apply the recommended control strategy to vary the speed of the compressor for each mode of operation and to be able to switch from one mode to the other. A series of verification tests tend to confirm that the speed control strategy has been correctly implemented. The proposed model is used in annual simulations of a residential system equipped with a variable capacity ground-source heat pump. In this case, the seasonal performance factor (SPF = ratio of the annual energy requirement for heating, cooling and domestic hot water (DHW) over the annual total energy consumption) is 3.64. The corresponding value for a conventional system composed of a fixed capacity heat pump operating in on–off mode and a separate electric DHW tank is 2.60.

Uncontrolled Keywords

heat pump, modelling, compressor speed, simulations

Open Access document in PolyPublie
Subjects: 2100 Génie mécanique > 2100 Génie mécanique
2100 Génie mécanique > 2107 Modélisation, simulation et méthodes des éléments finis
Department: Département de génie mécanique
Research Center: Non applicable
Funders: CRSNG/NSERC
Grant number: RGPIN-2014-04207
Date Deposited: 31 Jul 2017 12:34
Last Modified: 24 Oct 2018 16:12
PolyPublie URL: https://publications.polymtl.ca/2641/
Document issued by the official publisher
Journal Title: Journal of Building Performance Simulation (vol. 11, no. 3)
Publisher: Taylor & Francis
Official URL: https://doi.org/10.1080/19401493.2017.1332686

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