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See detailEnergy performance of buildings : bridging the gap between research and practice
Masy, G.; Ajaji, Youness; Abrahams, Pauline ULiege et al

in Heiselberg, Per Kvols (Ed.) CLIMA 2016 - proceedings of the 12th REHVA World Congress : vol. 6 (2016, May)

A method to bridge the gap between research and practice, as far as estimation of the building envelope Heat Loss Coefficient is concerned, is to perform measurement of indoor temperature profiles during ... [more ▼]

A method to bridge the gap between research and practice, as far as estimation of the building envelope Heat Loss Coefficient is concerned, is to perform measurement of indoor temperature profiles during unoccupied periods when the solar heat gains are sufficient to reach significant indoor-outdoor temperature differences. An observation of indoor temperature profiles was conducted during summer 2014 in a passive house located in Belgium. The observation includes periods with and without occupancy. Occupants were asked to describe their behavior regarding windows opening, closing of external blinds, opening of internal doors. Electric devices were listed and the electricity consumption profile was characterized during occupancy and no occupancy. A calibration process is performed in order to reproduce the global heat balance of the whole building and the zone by zone heat balance. The calibrated model provides an estimation of the Building Heat Loss Coefficient. The influence of the assumptions related to occupants’ behavior in summer is confirmed and recommendations are made to better describe that behavior in terms of use of mechanical ventilation, internal doors opening and use of external blinds. [less ▲]

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