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Title

Which performance indicators should we provide to policy makers to switch from gas boilers to air to water heat pumps?
Authors
De Sousa Fraga, Carolina
Freyre, Alisa
Hollmuller, Pierre
de Pablo, Rodrigo
Rüetschi, Matthias
Published in 13th IEA Heat Pump Conference 2020. Jeju, Korea - May 11-14, 2020 - . 2020
Abstract The most commonly used performance indicator (PI) of heat pump (HP) systems is the COP. But is it a good PI? If so, does it have a minimum threshold? This article covers the potentials and constraints of different PIs for HP systems implemented in non-renovated residential buildings from an environmental, economic and social acceptability point of view, based on real case studies situated in Geneva, Switzerland. After describing the Geneva context and listing the most common PIs, we first compare a traditional gas boiler to an air to water HP system for space heating and domestic hot water of single-family building (SFB). We then follow by a similar comparison for multifamily buildings (MFB). For this particular building demand, a hybrid system is also analyzed (HP combined with gas for the peak loads) and specific PIs are included. Finally, the most pertinent PIs for air to water HP systems are identified and the minimum COP value of 2.5 is recommended to insure the reliability of the system in the 3 mentioned fields in the swiss context.
Keywords COP — Air to water heat pump — Performance indicators — Residential buildings — Hybrid systems
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Proceedings chapter (Accepted version) (619 Kb) - public document Free access
Structures
Faculté des sciences / Section des sciences de la Terre et de l'Environnement / Département F.-A. Forel des sciences de l'environnement et de l'eau
Centres et instituts / Institut des sciences de l'environnement
Research groups ISE Energie
ISE Pôle Sciences
Systèmes énergétiques
Citation
(ISO format) 		DE SOUSA FRAGA, Carolina et al. Which performance indicators should we provide to policy makers to switch from gas boilers to air to water heat pumps?. In: 13th IEA Heat Pump Conference 2020. Jeju, Korea. [s.l.] : [s.n.], 2020. https://archive-ouverte.unige.ch/unige:136514

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Deposited on : 2020-06-08

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