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Sizing domestic air-source heat pump systems with thermal storage under varying electrical load shifting strategies

Marini, D; Buswell, RA; Hopfe, CJ; (2019) Sizing domestic air-source heat pump systems with thermal storage under varying electrical load shifting strategies. Applied Energy , 255 , Article 113811. 10.1016/j.apenergy.2019.113811. Green open access

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Abstract

The demand for local heat storage to help manage energy demand in dwellings is likely to increase as the electrification of heat through heat pumps becomes more widespread. Sizing thermal energy storage systems has been an important topic in contemporary literature, but the effect of the electrical load shifting tariff and the service the householder receives in terms of space-heating and hot water delivered, however, has not and this is particularly important when households transition from conventional gas fired to low carbon technologies. This paper takes a whole system modelling approach to understand the impact of user demand patterns and load shifting scenarios on the volume of energy storage required for a heat-pump installation. The work uses monitoring data from several family homes to drive the simulation and finds that the level of service the householder receives is sensitive to their patterns of consumption, thermal energy storage volume and the electricity tariff, with some households being far more sensitive to tariff choice than others. The paper introduces a novel, quantifiable measure of service for space-heating and hot water systems that can be incorporated into thermal energy storage sizing procedures.

Type: Article
Title: Sizing domestic air-source heat pump systems with thermal storage under varying electrical load shifting strategies
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.apenergy.2019.113811
Publisher version: https://doi.org/10.1016/j.apenergy.2019.113811
Language: English
Additional information: © 2019 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
Keywords: Hot water, End use energy demand, Load shifting, Thermal energy, storage, Air source heat-pumps (ASHP)
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment > Bartlett School Env, Energy and Resources
URI: https://discovery.ucl.ac.uk/id/eprint/10083827
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