Journal
JOURNAL OF BUILDING PERFORMANCE SIMULATION
Volume 11, Issue 1, Pages 65-83Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/19401493.2016.1273390
Keywords
energy efficiency; inverse modelling; lumped parameter model; smart metre
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Funding
- Engineering and Physical Science Research Council (EPSRC) [EP/K002724/1]
- EPSRC [EP/M021890/1]
- Fundacion Seneca
- Saavedra Fajardo [20035/SF/16]
- EPSRC [EP/K002724/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/K002724/1] Funding Source: researchfish
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The reduction of energy use in buildings is a major component of greenhouse gas mitigation policy and requires knowledge of the fabric and the occupant behaviour. Hence there has been a longstanding desire to use automatic means to identify these. Smart metres and the internet-of-things have the potential to do this. This paper describes a study where the ability of inverse modelling to identify building parameters is evaluated for 6 monitored real and 1000 simulated buildings. It was found that low-order models provide good estimates of heat transfer coefficients and internal temperatures if heating, electricity use and CO2 concentration are measured during the winter period. This implies that the method could be used with a small number of cheap sensors and enable the accurate assessment of buildings' thermal properties, and therefore the impact of any suggested retrofit. This has the potential to be transformative for the energy efficiency industry.
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