In China, REC （residential energy consumption） is the second largest energy use category （10%） following the industry. To fulfill the Chinese government＇s commitment that Chinese CO2 emissions would peak in 2030,...In China, REC （residential energy consumption） is the second largest energy use category （10%） following the industry. To fulfill the Chinese government＇s commitment that Chinese CO2 emissions would peak in 2030, as a result, improving the energy efficiency and reducing the emissions from the building sector is significantly important. A survey, in the form of a questionnaire, of energy consumption and thermal situation in different residential building types （detached house, multi-story building, high-rise building）, was undertaken in three cities （Shanghai, Hangzhou, and Changzhou） in hot-summer and cold-winter regions, these three cities were selected to represent the most flourishing economic provinces. This region in China was selected for the evaluation of EETP （energy and thermal performance analysis）, because of its special weather conditions, huge energy consumption （as both heating in winter and cooling in summer are necessary）, and other regional characteristics. 183 households were sampled and experiments were separately done in typical examples of three different building types. Systematic evaluation on EETP for three different residential building types, were put forward to assess the energy efficiency and thermal performance of three different building types.展开更多
The urban microclimate has direct implications with regards to thermal comfort indoors as well as outdoors. In the tropics, the outdoor thermal comfort conditions during daytime are often far above acceptable comfort ...The urban microclimate has direct implications with regards to thermal comfort indoors as well as outdoors. In the tropics, the outdoor thermal comfort conditions during daytime are often far above acceptable comfort standards due to intense solar radiation and high solar elevations. This study aims to know effects of simple and fundamental building forms on microclimate and outdoor thermal comfort in a high dense tropical city, focusing on Dhaka, Bangladesh as a study city. Investigations are carried out on existing area and model areas with modified building forms （in respect of height and shape） on the microclimate as well as on outdoor thermal comfort during daytime in summer. This study has demonstrated that the model using less ground coverage and higher buildings can offer a better thermal climate than the models using maximum ground coverage in a high-density tropical city.展开更多
文摘In China, REC （residential energy consumption） is the second largest energy use category （10%） following the industry. To fulfill the Chinese government＇s commitment that Chinese CO2 emissions would peak in 2030, as a result, improving the energy efficiency and reducing the emissions from the building sector is significantly important. A survey, in the form of a questionnaire, of energy consumption and thermal situation in different residential building types （detached house, multi-story building, high-rise building）, was undertaken in three cities （Shanghai, Hangzhou, and Changzhou） in hot-summer and cold-winter regions, these three cities were selected to represent the most flourishing economic provinces. This region in China was selected for the evaluation of EETP （energy and thermal performance analysis）, because of its special weather conditions, huge energy consumption （as both heating in winter and cooling in summer are necessary）, and other regional characteristics. 183 households were sampled and experiments were separately done in typical examples of three different building types. Systematic evaluation on EETP for three different residential building types, were put forward to assess the energy efficiency and thermal performance of three different building types.
文摘The urban microclimate has direct implications with regards to thermal comfort indoors as well as outdoors. In the tropics, the outdoor thermal comfort conditions during daytime are often far above acceptable comfort standards due to intense solar radiation and high solar elevations. This study aims to know effects of simple and fundamental building forms on microclimate and outdoor thermal comfort in a high dense tropical city, focusing on Dhaka, Bangladesh as a study city. Investigations are carried out on existing area and model areas with modified building forms （in respect of height and shape） on the microclimate as well as on outdoor thermal comfort during daytime in summer. This study has demonstrated that the model using less ground coverage and higher buildings can offer a better thermal climate than the models using maximum ground coverage in a high-density tropical city.
