Using real occupancy in retrofit decision-making: Reducing the performance gap in low utilisation higher education buildings

Stephen Oliver, Saleh Seyedzadeh, Farzad Rahimian

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Abstract

The retrofit analysis relies on intuition and faith in the simulations that lead the decision-making process. However, intuition is built upon belief systems which become increasingly unjustifiable as building operation deviates from design whether in utilisation, occupant behaviours or climate. Higher education facilities are known for persistently low but well-recorded occupant presence and density. The low utilisation makes them susceptible to counterintuitive behaviours however, their registration data provides a means of identifying where intuition fails. When operation has little correlation with design it is possible for performance issues to appear to be symptoms of design considerations rather than root cause. Using a discrete space modelled in both EnergyPlus and SBEM as virtual case study g and class registration data, this paper explores how lighting retrofit simulation alludes to heating load concerns resulting from poor envelope and HVAC performance rather than heating management. This is achieved through utilisation of a new approach to scheduling utilisation and BMS systems for higher education facilities in EnergyPlus. The paper concludes suggesting the utilisation modelling method could replace the current heating efficiency credits approach approved for Part L2. Results include discussion on cost-benefit, legislative compliance and implications for retrofit decision-making.
Original languageEnglish
Title of host publicationConstruction and Management in Architecture, Engineering, Construction and Operations (AECO)
Subtitle of host publication36th CIB W78 2019 Conference ICT in Design
PublisherUniversity of Northumbria, Newcastle-upon-Tyne.
Pages676
Number of pages688
ISBN (Electronic)9781861354860
ISBN (Print)9781861354877
Publication statusPublished - 18 Sep 2019
Event36th CIB W78 2019 Conference: ICT in Design, Construction and Management in Architecture, Engineering, Construction and Operations (AECO) - Newcastle, United Kingdom
Duration: 18 Sep 201920 Sep 2019
http://cibw78.northumbria-eee.co.uk/

Conference

Conference36th CIB W78 2019 Conference
CountryUnited Kingdom
CityNewcastle
Period18/09/1920/09/19
Internet address

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    Oliver, S., Seyedzadeh, S., & Rahimian, F. (2019). Using real occupancy in retrofit decision-making: Reducing the performance gap in low utilisation higher education buildings. In Construction and Management in Architecture, Engineering, Construction and Operations (AECO): 36th CIB W78 2019 Conference ICT in Design (pp. 676). University of Northumbria, Newcastle-upon-Tyne..