TY - JOUR
T1 - Vertical meteorological patterns and their impact on the energy demand of tall buildings
JF - Energy and Buildings
Y1 - 2021/02//
SP - 110624
A1 - Chenxi Gui
A1 - Da Yan
A1 - Tianzhen Hong
A1 - Chan Xiao
A1 - Siyue Guo
A1 - Yifan Tao
KW - building energy demands
KW - meteorological towers
KW - microclimates
KW - tall buildings
KW - vertical meteorological patterns
KW - weather parameters
AB - In accordance with the developing economy and growing population, an increasing numberof tall buildings have been constructed over the last 20 years In 2017, there were 144 newbuildings worldwide that were 200 m or greater in height; 50% of these buildings were inChina. Due to the vertical gradient impact of meteorological parameters, the energyperformance of tall buildings differs from that of general buildings. Few studies exist onvertical meteorological changes using measured data at different heights . Most studies ondynamic energy simulation simulate meteorological parameters using models. This studyexplores vertical meteorological patterns using hourly dry bulb temperature, relativehumidity, and wind speed data from 2007 to 2017 for a 325 m meteorological tower in Beijing.The temperature decreased significantly with increasing altitude (~0.9 °C per 100 m )), whilethe daily temperature difference decreased with increasing altitude . The absolute humiditydid not change significantly with height. The wind speed increased with altitude at approximately 2 m/s per 100 m. The building simulation showed that the annual heating load at a height of 320 m increased by 85% from that at 8 m; the annual cooling load decreased by 20%. Such significant differences in thermal loads for 300 m tall buildings confirm the need to consider vertical meteorological differences in building performance simulations for tall building.s A greater number of measurement points at different heights improve the simulation accuracy. Guidance on selecting the heights for vertical metrological measurements is provided based on the influences of building thermal loads.
VL - 232
JO - Energy and Buildings
DO - 10.1016/j.enbuild.2020.110624
ER -
TY - JOUR
T1 - Vertical meteorological patterns and their impact on the energy demand of tall buildings
JF - Energy and Buildings
Y1 - 2021/02//
SP - 110624
A1 - Chenxi Gui
A1 - Da Yan
A1 - Tianzhen Hong
A1 - Chan Xiao
A1 - Siyue Guo
A1 - Yifan Tao
KW - building energy demands
KW - meteorological towers
KW - microclimates
KW - tall buildings
KW - vertical meteorological patterns
KW - weather parameters
AB - In accordance with the developing economy and growing population, an increasing numberof tall buildings have been constructed over the last 20 years In 2017, there were 144 newbuildings worldwide that were 200 m or greater in height; 50% of these buildings were inChina. Due to the vertical gradient impact of meteorological parameters, the energyperformance of tall buildings differs from that of general buildings. Few studies exist onvertical meteorological changes using measured data at different heights . Most studies ondynamic energy simulation simulate meteorological parameters using models. This studyexplores vertical meteorological patterns using hourly dry bulb temperature, relativehumidity, and wind speed data from 2007 to 2017 for a 325 m meteorological tower in Beijing.The temperature decreased significantly with increasing altitude (~0.9 °C per 100 m )), whilethe daily temperature difference decreased with increasing altitude . The absolute humiditydid not change significantly with height. The wind speed increased with altitude at approximately 2 m/s per 100 m. The building simulation showed that the annual heating load at a height of 320 m increased by 85% from that at 8 m; the annual cooling load decreased by 20%. Such significant differences in thermal loads for 300 m tall buildings confirm the need to consider vertical meteorological differences in building performance simulations for tall building.s A greater number of measurement points at different heights improve the simulation accuracy. Guidance on selecting the heights for vertical metrological measurements is provided based on the influences of building thermal loads.
VL - 232
JO - Energy and Buildings
DO - 10.1016/j.enbuild.2020.110624
ER -