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A thermal-electrical analogy model of a four-floor building with occupancy estimation for heating system control

Research output: Contribution to journalJournal article

Published
<mark>Journal publication date</mark>29/10/2019
<mark>Journal</mark>IFAC-PapersOnLine
Issue number11
Volume52
Number of pages6
Pages (from-to)91-96
Publication statusPublished
Original languageEnglish
Event5th IFAC Conference on Intelligent Control and Automation Sciences (ICONS) - Belfast, United Kingdom
Duration: 21/08/201923/08/2019

Conference

Conference5th IFAC Conference on Intelligent Control and Automation Sciences (ICONS)
CountryUnited Kingdom
CityBelfast
Period21/08/1923/08/19

Abstract

The well-known electrical analogy for thermal modelling is based on the observation that Fourier's equation for one dimensional heat transfer takes the same form as Ohm's law. This provides a system for creating and resolving complex heat transfer problems using an established set of physically-based equations. In this article, such a model is developed and evaluated for a four-floor modern university building. The model is represented in state space form for optimisation and simulation purposes. The electrical analogy is chosen so that the model can be extended and used for future research into distributed, demand-side control of multiple buildings on the university network, requiring a fast computation time. The estimation of occupancy, representing a significant internal heat source, is also investigated. Here, wifi usage and return CO2 data are combined in novel manner to improve the model response.