Thermal circuits assembling and state-space extraction for modelling heat transfer in buildings

Christian Ghiaus and Naveed Ahmad

Energy, 2020, vol. 195, issue C

Abstract: State-space representation is essential in dynamical systems theory. This paper introduces a methodology for obtaining state-space representation from the thermal models of elementary components of a building by the conjunction of two methods: 1) assembling of thermal circuits and 2) state-space extraction from thermal circuit. These methods are fully illustrated on a very simple model and tested on a real house of about 100 m2 on which detailed measurements were achieved for 40 days at a time step of 10 min. The errors obtained between the measurements and the simulation results are in the order of ±1°C for a single zone and ±2°C for seven thermal zones. Besides simulation, parameter identification and control, the methods for assembling thermal circuits and extraction of state-space representation may be useful in Building Information Modelling (BIM).

Keywords: Model assembling; State-space extraction; Thermal circuits; Building information modelling (BIM); Dynamic thermal simulation; Control systems (search for similar items in EconPapers)
Date: 2020
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Citations: View citations in EconPapers (6)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:195:y:2020:i:c:s0360544220301262

DOI: 10.1016/j.energy.2020.117019

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