Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Numerical optimisation of thermal comfort improvement for indoor environment with occupants and furniture
Highlights CFD study of indoor thermal comfort of a model room with heat source, furniture and occupants. Correlations between heat generation, ventilation velocity and thermal sensation indices (PPD–PMV). Sensitivity of location of occupant to flow path and its impact on thermal comfort distributions. Thermal comfort optimisation for single and multiple occupants by varying heat generation and flow ventilation velocity.
Abstract Indoor thermal environment of a 3-D ventilated room was studied by computational fluid dynamics to understand correlations between heat generation, ventilation velocity and thermal sensation indices. The existence of a thermal occupant was found to produce thermal plume approx 15% stronger in magnitude than that from an unoccupied room. With second thermal occupant, there has further temperature increase of maximum 6.5%, equivalent to an increase of PPD value by 8.6%, for which occupants would normally feel uncomfortable. Thus, an increased flow ventilation rate (>0.7m/s) would be required, in order to keep the same thermal comfort level of the room.
Numerical optimisation of thermal comfort improvement for indoor environment with occupants and furniture
Highlights CFD study of indoor thermal comfort of a model room with heat source, furniture and occupants. Correlations between heat generation, ventilation velocity and thermal sensation indices (PPD–PMV). Sensitivity of location of occupant to flow path and its impact on thermal comfort distributions. Thermal comfort optimisation for single and multiple occupants by varying heat generation and flow ventilation velocity.
Abstract Indoor thermal environment of a 3-D ventilated room was studied by computational fluid dynamics to understand correlations between heat generation, ventilation velocity and thermal sensation indices. The existence of a thermal occupant was found to produce thermal plume approx 15% stronger in magnitude than that from an unoccupied room. With second thermal occupant, there has further temperature increase of maximum 6.5%, equivalent to an increase of PPD value by 8.6%, for which occupants would normally feel uncomfortable. Thus, an increased flow ventilation rate (>0.7m/s) would be required, in order to keep the same thermal comfort level of the room.
Numerical optimisation of thermal comfort improvement for indoor environment with occupants and furniture
Horikiri, Kana (Autor:in) / Yao, Yufeng (Autor:in) / Yao, Jun (Autor:in)
Energy and Buildings ; 88 ; 303-315
07.12.2014
13 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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