Integration of a magnetocaloric heat pump in an energy flexible residential building

Hicham Johra, Per Kvols Heiselberg, Konstantin Filonenko, Christian T. Veje, Stefano DALL’OLIO Dall'Olio, Kurt Engelbrecht, Christian Bahl

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The main goal of the ENOVHEAT project is to develop, build and test a prototype of an innovative heat pump based on active magnetic regenerator technology. This device can be coupled to a ground source heat exchanger and an under-floor heating system to provide for the space heating needs of a low-energy house in Denmark. However, the use of a simple controller leads to modest performances because the heating system is running mostly part-load. This numerical study has tested the possibility of using heat storage in the indoor environment and building thermal mass as an effective strategy to improve the operation of the magnetocaloric heat pump. Indoor temperature set point modulation can take advantage of the building energy flexibility potential to maximize the full-load operation time of the heating system and therefore improve its seasonal COP. Results show that this control strategy can significantly increase the seasonal COP, ranging from 2.90 to 3.51 depending on the building thermal mass. Although the indoor temperature stability is reduced, it allows the magnetocaloric heat pump to reach energy use efficiencies which are similar to the ones of conventional vapour-compression heat pumps.
Original languageEnglish
JournalRenewable Energy
Volume136
Pages (from-to)115-126
ISSN0960-1481
DOIs
Publication statusPublished - Jun 2019

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Pumps
Heating
Space heating
Heat storage
Regenerators
Potential energy
Heat exchangers
Hot Temperature
Vapors
Modulation
Temperature
Controllers

Keywords

  • Magnetocaloric heat pump
  • Magnetic heating
  • Active magnetic regenerator
  • Innovative heating system
  • Building energy flexibility
  • Demand-side management

Cite this

Johra, Hicham ; Heiselberg, Per Kvols ; Filonenko, Konstantin ; Veje, Christian T. ; Dall'Olio, Stefano DALL’OLIO ; Engelbrecht, Kurt ; Bahl, Christian. / Integration of a magnetocaloric heat pump in an energy flexible residential building. In: Renewable Energy. 2019 ; Vol. 136. pp. 115-126.
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abstract = "The main goal of the ENOVHEAT project is to develop, build and test a prototype of an innovative heat pump based on active magnetic regenerator technology. This device can be coupled to a ground source heat exchanger and an under-floor heating system to provide for the space heating needs of a low-energy house in Denmark. However, the use of a simple controller leads to modest performances because the heating system is running mostly part-load. This numerical study has tested the possibility of using heat storage in the indoor environment and building thermal mass as an effective strategy to improve the operation of the magnetocaloric heat pump. Indoor temperature set point modulation can take advantage of the building energy flexibility potential to maximize the full-load operation time of the heating system and therefore improve its seasonal COP. Results show that this control strategy can significantly increase the seasonal COP, ranging from 2.90 to 3.51 depending on the building thermal mass. Although the indoor temperature stability is reduced, it allows the magnetocaloric heat pump to reach energy use efficiencies which are similar to the ones of conventional vapour-compression heat pumps.",
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author = "Hicham Johra and Heiselberg, {Per Kvols} and Konstantin Filonenko and Veje, {Christian T.} and Dall'Olio, {Stefano DALL’OLIO} and Kurt Engelbrecht and Christian Bahl",
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Integration of a magnetocaloric heat pump in an energy flexible residential building. / Johra, Hicham; Heiselberg, Per Kvols; Filonenko, Konstantin; Veje, Christian T.; Dall'Olio, Stefano DALL’OLIO; Engelbrecht, Kurt; Bahl, Christian.

In: Renewable Energy, Vol. 136, 06.2019, p. 115-126.

Research output: Contribution to journalJournal articleResearchpeer-review

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AU - Johra, Hicham

AU - Heiselberg, Per Kvols

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AU - Dall'Olio, Stefano DALL’OLIO

AU - Engelbrecht, Kurt

AU - Bahl, Christian

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