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

Tate, Oliver and Cheneler, David and Taylor, C. James (2019) A thermal-electrical analogy model of a four-floor building with occupancy estimation for heating system control. IFAC-PapersOnLine, 52 (11). pp. 91-96. ISSN 2405-8963

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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.

Item Type:
Journal Article
Journal or Publication Title:
IFAC-PapersOnLine
Subjects:
ID Code:
133997
Deposited By:
Deposited On:
30 May 2019 07:45
Refereed?:
Yes
Published?:
Published
Last Modified:
18 Sep 2020 04:57