University of Cambridge > > CIBSE YEPG Carbon Bite Nights: Cambridge Edition > In pursuit of optimal building performance: B-bem & Post Occupancy Evaluation

In pursuit of optimal building performance: B-bem & Post Occupancy Evaluation

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Talk 1: Bayesian Building Energy Management (B-bem) (Dr Yeonsook Heo, Dept. of Architecture, University of Cambridge)

This project aims to transform conventional energy analysis processes in order to better support the future energy management of existing non-domestic buildings – whether it is to assist in small scale changes to building operations or deep energy retrofits. The project has been developing methods based on building simulation models to support building energy management with the full quantification of stochastic and technical uncertainties affecting building energy use. Main issues in the simulation model to represent real building behaviour are how to effectively integrate stochastic processes of occupancy-related services into the simulation model and how to capture actual behaviour of mechanical systems. This talk will present three methods developed to overcome these issues. In order to effectively parameterise stochastic occupancy-related loads, a functional data analysis approach has been used to derive and investigate operational signatures for zones in a case study building. To support effective modelling of mechanical systems, two-level modelling approach has been developed to create the whole building model based on a small set of prototype room models and couple the whole building model with a heating distribution network model. Furthermore, a Bayesian calibration framework has been applied to reduce the gap between modelled and actual system behaviour. The talk will present the applicability of these methods in the context of building energy management through case studies.

Talk 2: Building performance – from theory to practice (Tom McNeil, Max Fordham) Tom will review the practical aspects of building performance, covering a range of topics including; estimating a buildings energy consumption during the design stage, through to reviewing the energy performance when a building is occupied and in-use. He will run through a series of case studies, both domestic and non-domestic, which look into occupant satisfaction, indoor air quality and the practical issues of running and maintaining buildings. This will include findings from a Government funded post occupancy evaluation project on a range of social housing developments, and POE findings from some of Max Fordham’s own projects.

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This talk is part of the CIBSE YEPG Carbon Bite Nights: Cambridge Edition series.

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