The impact of electrical load shifting strategies on storage capacity and service provision of domestic hot water systems in residential buildings

D. Marini, R. A. Buswell, C. J. Hopfe

Research output: Chapter in Book/Report/Conference proceedingConference paperpeer-review

Abstract

Domestic hot water can accounts for up to 25% of the total domestic energy consumption in the UK and is demand driven. In the UK there has been a trend to replace traditional tank systems with instantaneous supply of hot water through gas fired combination boilers, leaving the space occupied by the tank to be re-purposed by the household. This space is likely to become more critical as the need for storage increases in order to participate in peak load shifting when space-heating and hot water is supplied by electricity rather than gas. The size of tank and hence the delivery of water at an appropriate temperature delivered when demand dictate is likely to become a point of tension in future systems. This paper introduces a notion of hot water ‘service’ that can be evaluated and used to compare the performance of different systems, along side more traditional metrics such as cost, power and tank size. The analysis compares several load shifting strategies through a TRNSYS model driven by high resolution hot water data (1sec) measured in a UK home. It is demonstrated that optimal tank size and the service the system can provide are very sensitive to the load shifting strategy applied.

Original languageEnglish
Title of host publication15th International Conference of the International Building Performance Simulation Association, Building Simulation 2017
EditorsCharles S. Barnaby, Michael Wetter
PublisherInternational Building Performance Simulation Association
Pages1195-1203
Number of pages9
ISBN (Electronic)9781510870673
DOIs
Publication statusPublished - 2017
Externally publishedYes
Event15th International Conference of the International Building Performance Simulation Association, Building Simulation 2017 - San Francisco, United States
Duration: 7 Aug 20179 Aug 2017

Publication series

NameBuilding Simulation Conference Proceedings
Volume3
ISSN (Print)2522-2708

Conference

Conference15th International Conference of the International Building Performance Simulation Association, Building Simulation 2017
Country/TerritoryUnited States
CitySan Francisco
Period7/08/179/08/17

ASJC Scopus subject areas

  • Building and Construction
  • Architecture
  • Modelling and Simulation
  • Computer Science Applications

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