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Four-state domestic building occupancy model for energy demand simulations

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posted on 25.03.2015, 12:15 by Eoghan McKenna, Murray Thomson, Michal Krawczynski
Stochastic building occupancy models are increasingly used to underpin building energy demand models, especially those providing high-resolution electricity demand profiles. This paper describes the development of an established two-state active-occupancy model into a four-state model in which the absent/present state and the active/inactive state are treated separately. This provides a distinction between sleeping and absence and so offers an improved basis for demand modelling, particularly high-resolution thermal modelling. The model uses a first-order Markov chain technique and the paper illustrates the value of this approach in duly representing the naturally occurring correlation of occupancy states in multiply occupied dwellings. The paper also describes how the model has been enhanced to avoid under-representation of dwellings with 24 h occupancy. The model has been implemented in Excel VBA and made available to download for free. The model is constructed from and verified against UK time-use survey data but could readily be adapted to use similar data from elsewhere
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Funding

This work was supported by the Engineering and Physical Sciences Research Council, UK, within the Top and Tail of Energy Networks project [EP/I031707/1].

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Research Unit

  • Centre for Renewable Energy Systems Technology (CREST)

Published in

Energy and Buildings

Citation

MCKENNA, E., THOMSON, M. and KRAWCZYNSKI, M., 2015. Four-state domestic building occupancy model for energy demand simulations. Energy and Buildings, 96, pp.30-39.

Publisher

© Elsevier

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VoR (Version of Record)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution 4.0 International (CC BY 4.0) licence. Full details of this licence are available at: http://creativecommons.org/licenses/ by/4.0/

Publication date

2015

Notes

This is an Open Access Article. It is published by Elsevier as Open Access at: http://dx.doi.org/10.1016/j.enbuild.2015.03.013 This paper describes the development and verification of the new four-state occupancy model. The model has been developed as a Microsoft Excel workbook and has been made available at: https://dspace.lboro.ac.uk/2134/15726

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en

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