TY - JOUR
T1 - Introducing extended natural ventilation index for buildings under the present and future changing climates
AU - Bamdad, Keivan
AU - Matour, Soha
AU - Izadyar, Nima
AU - Law, Tim
PY - 2022
Y1 - 2022
N2 - Natural Ventilation (NV) in buildings has a significant potential to reduce building energy use, provide thermal comfort and improve indoor air quality. NV potential is highly dependent on climatic conditions and may change over time due to global warming. To ensure a sustained and efficient NV design, it is necessary to identify the maximum potential of NV in a given climate and its sensitivity to climate change. Accordingly, this research aims to i) quantify the Climatic Potential of Natural Ventilation (CPNV) under present climate conditions and explore how this potential may change over time in the future in different Australian climate zones, ii) propose a new index named the Climatic Potential of Extended Natural Ventilation (CPENV) which identifies to what extent NV can be exploited if elevated airspeed requirements are met, and iii) evaluate the sensitivity of both CPNV and CPENV indices to global warming. Results showed that CPNV could be extended up to 18% with a required airspeed. The results also highlighted that the Total Climatic Potential of Natural Ventilation (TCPNV) could increase up to 27% or decrease up to 14.3% based on the present climate zone in the future.
AB - Natural Ventilation (NV) in buildings has a significant potential to reduce building energy use, provide thermal comfort and improve indoor air quality. NV potential is highly dependent on climatic conditions and may change over time due to global warming. To ensure a sustained and efficient NV design, it is necessary to identify the maximum potential of NV in a given climate and its sensitivity to climate change. Accordingly, this research aims to i) quantify the Climatic Potential of Natural Ventilation (CPNV) under present climate conditions and explore how this potential may change over time in the future in different Australian climate zones, ii) propose a new index named the Climatic Potential of Extended Natural Ventilation (CPENV) which identifies to what extent NV can be exploited if elevated airspeed requirements are met, and iii) evaluate the sensitivity of both CPNV and CPENV indices to global warming. Results showed that CPNV could be extended up to 18% with a required airspeed. The results also highlighted that the Total Climatic Potential of Natural Ventilation (TCPNV) could increase up to 27% or decrease up to 14.3% based on the present climate zone in the future.
UR - https://hdl.handle.net/1959.7/uws:68842
U2 - 10.1016/j.buildenv.2022.109688
DO - 10.1016/j.buildenv.2022.109688
M3 - Article
SN - 0360-1323
VL - 226
JO - Building and Environment
JF - Building and Environment
M1 - 109688
ER -
