The heating load simulation models of the residential buildings in Lhasa are established for enhancing the space organization’s adaptability to climate and radiation and improving its energy saving performance.The sp...The heating load simulation models of the residential buildings in Lhasa are established for enhancing the space organization’s adaptability to climate and radiation and improving its energy saving performance.The space organization items a e analyzed for both the existing buildings without insulation and new buildings with good insulation.The items include orientation design,south a d north balcony design,the north and south partition wall’s position design,storey height design and window-wall ratio design.Simulation results show that orientation is the key design element for energy saving design,and adverse orientation can obviouslyincrease heating energy consumption;south and north balconies can reduce winter heating energy consumption;partition walls move to the north,which means that the south room’s big depth design leads to less heating energy consumption,but the effect is not inconspicuous;smaier storey height results in less heating load.For the existing buildings,the window-wall ratio of south side has a balance point for energy saving design in the calculation condition.For the new buildings with good insulation,enlarging the south window-wal ratio can continuously reduce heating energy consumption,but the energy saving rate between models gets smaier.The heating energy consumption comparison study between the common model and optimal space design model demonstrates that the energy saving design can significantly reduce heating energy consumption展开更多
The influence of a polyvinyl chloride（PVC）-panel on the cooling load of a residential apartment in Mashad,Iran,is analyzed by the DeST-h software.And the summer natural ventilation of the residential apartment is in...The influence of a polyvinyl chloride（PVC）-panel on the cooling load of a residential apartment in Mashad,Iran,is analyzed by the DeST-h software.And the summer natural ventilation of the residential apartment is investigated to determine the wind speed into the apartment through the computational fluid dynamics software.The evaluation results of the indoor wind velocity show that most parts of the apartment are comfortable.The cooling load of the penthouse can be decreased about 10.5% or 6.5% when an air layer exists or does not exist between the ceiling and the PVC-panel,respectively,indicating that the existence of the air layer can decrease the cooling load.However,the effect of the increase in the air layer＇s thickness on the decrease in the cooling load is obvious.Adding a thin layer of air between the ceiling and the PVC-panel is a good step toward sustainable buildings.展开更多
Dong is one of Chinese minorities. Dong ancestors can be traced back to the Baiyue, dry Vietnam of Qin and Han Dynasties with a long history, unique customs and culture. Whether architecture, handicrafts, or folk arts...Dong is one of Chinese minorities. Dong ancestors can be traced back to the Baiyue, dry Vietnam of Qin and Han Dynasties with a long history, unique customs and culture. Whether architecture, handicrafts, or folk arts community, they all have been highly recognized by experts and scholars. But in recent years with China＇ s rapid economic development, the quality of people＇ s lives have constantly improved, the use of new materials was widespread, as well as foreign cultures and various trends continued to penetrate in the Dong region, Dong architectural heritage is facing unprecedented impact, while Dong also exposed some of the drawbacks of traditional residential architecture. So far there have been intensified phenomena of abandoning traditional residential construction, demolition, reconstruction, and many buildings destroying cultural heritage. It is a major issue existing in the development of the Dong residential transformation to strike a balance between retaining the traditional architectural features of houses and improving the Dong people ＇ living conditions. Ideas for Dong village houses architectural conservation should not just blindly maintain the status quo, but rather find a positive solution to meet the appearing new demands from social development and improvement of the living environment of people, only meet the housing needs of this new issue is the key of resolution, is development direction of the scientific and sustainable conservation of national construction.展开更多
基金The National Natural Science Foundation of China(No.51608426,51590913)the Scientific Research Foundation for the Returned Overseas Chinese Scholars,State Education Ministry(No.(2014)1685)
文摘The heating load simulation models of the residential buildings in Lhasa are established for enhancing the space organization’s adaptability to climate and radiation and improving its energy saving performance.The space organization items a e analyzed for both the existing buildings without insulation and new buildings with good insulation.The items include orientation design,south a d north balcony design,the north and south partition wall’s position design,storey height design and window-wall ratio design.Simulation results show that orientation is the key design element for energy saving design,and adverse orientation can obviouslyincrease heating energy consumption;south and north balconies can reduce winter heating energy consumption;partition walls move to the north,which means that the south room’s big depth design leads to less heating energy consumption,but the effect is not inconspicuous;smaier storey height results in less heating load.For the existing buildings,the window-wall ratio of south side has a balance point for energy saving design in the calculation condition.For the new buildings with good insulation,enlarging the south window-wal ratio can continuously reduce heating energy consumption,but the energy saving rate between models gets smaier.The heating energy consumption comparison study between the common model and optimal space design model demonstrates that the energy saving design can significantly reduce heating energy consumption
基金The Programme of Introducing Talents of Discipline to Universities(No.111-2-13)the Project of the State Key Laboratory of Subtropical Building Science of South China University of Technology(No.200833)
文摘The influence of a polyvinyl chloride（PVC）-panel on the cooling load of a residential apartment in Mashad,Iran,is analyzed by the DeST-h software.And the summer natural ventilation of the residential apartment is investigated to determine the wind speed into the apartment through the computational fluid dynamics software.The evaluation results of the indoor wind velocity show that most parts of the apartment are comfortable.The cooling load of the penthouse can be decreased about 10.5% or 6.5% when an air layer exists or does not exist between the ceiling and the PVC-panel,respectively,indicating that the existence of the air layer can decrease the cooling load.However,the effect of the increase in the air layer＇s thickness on the decrease in the cooling load is obvious.Adding a thin layer of air between the ceiling and the PVC-panel is a good step toward sustainable buildings.
文摘Dong is one of Chinese minorities. Dong ancestors can be traced back to the Baiyue, dry Vietnam of Qin and Han Dynasties with a long history, unique customs and culture. Whether architecture, handicrafts, or folk arts community, they all have been highly recognized by experts and scholars. But in recent years with China＇ s rapid economic development, the quality of people＇ s lives have constantly improved, the use of new materials was widespread, as well as foreign cultures and various trends continued to penetrate in the Dong region, Dong architectural heritage is facing unprecedented impact, while Dong also exposed some of the drawbacks of traditional residential architecture. So far there have been intensified phenomena of abandoning traditional residential construction, demolition, reconstruction, and many buildings destroying cultural heritage. It is a major issue existing in the development of the Dong residential transformation to strike a balance between retaining the traditional architectural features of houses and improving the Dong people ＇ living conditions. Ideas for Dong village houses architectural conservation should not just blindly maintain the status quo, but rather find a positive solution to meet the appearing new demands from social development and improvement of the living environment of people, only meet the housing needs of this new issue is the key of resolution, is development direction of the scientific and sustainable conservation of national construction.
