Occupant behaviour in naturally ventilated and hybrid buildings

P.G. Tuohy, M.A. Humphreys, F. Nicol, H.B. Rijal, J.A. Clarke

Research output: Contribution to journalArticle

16 Citations (Scopus)
21 Downloads (Pure)


Adaptive thermal comfort criteria for building occupants are now becoming established. In this paper we illustrate their use in the prediction of occupant behaviour and make a comparison with a non-adaptive temperature threshold approach. A thermal comfort driven adaptive behavioural model for window opening is described and its use within dynamic simulation illustrated for a number of building types. Further development of the adaptive behavioural model is suggested including use of windows, doors, ceiling fans, night cooling, air conditioning and heating, also the setting of opportunities and constraints appropriate to a particular situation. The integration in dynamic simulation of the thermal adaptive behaviours together with non-thermally driven behaviours such as occupancy, lights and blind use is proposed in order to create a more complete model of occupant behaviour. It is further proposed that this behavioural model is implemented in a methodology that includes other uncertainties (e.g. in internal gains) so that a realistic range of occupant behaviours is represented at the design stage to assist in the design of robust, comfortable and low energy buildings.
Original languageEnglish
Pages (from-to)16-27
Number of pages12
JournalAmerican Society of Heating Refrigerating and Air Conditioning Engineers (ASHRAE) Transactions
Issue number1
Publication statusPublished - Jan 2009


  • occupant behaviour
  • natural ventilation
  • hybrid buildings
  • dynamic simulation
  • thermal adaptive behaviors
  • non-thermal drive
  • low energy buildings

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