In order to study the thermal environment of rural dwellings in cold areas,the physical environment of rural dwellings in the Guanzhong region was taken as the research object.The thermal environment parameters,such a...In order to study the thermal environment of rural dwellings in cold areas,the physical environment of rural dwellings in the Guanzhong region was taken as the research object.The thermal environment parameters,such as indoor and outdoor temperature and humidity,wall surface temperature of existing dwellings were measured,recorded,and analysed using physical environment measurements and numerical software simulations.By using Ecotect Analysis software to optimize the building envelope of existing residential buildings,the thermal analysis shows that the optimized building envelope reduces the heat transfer coefficient,increases thermal insulation,reduces building energy consumption by 59%,and increases the human comfort PMV from-2.01 to-1.40.These findings provide theoretical and data support for the construction of rural dwellings in cold regions and for research into thermal environments.展开更多
People who canafford it have theirbeams and pillarscarved and painted,and have the upper part ofinner walls painted withthree colorful stripes andlower part with yellow oriight green color. On thewall are paintings,su...People who canafford it have theirbeams and pillarscarved and painted,and have the upper part ofinner walls painted withthree colorful stripes andlower part with yellow oriight green color. On thewall are paintings,such asHarmony and Longevity.The corridor walls behindthe front gate are pastedwith portraits showing peo-ple subduing tigers and theGod of Wealth driving anelephant.展开更多
Atotal of 28house founda-tions werefound in theKarub Ruins in Qamdo.They take the shape of acircle,half underground.They are dwelling housesbuilt as early as some 5,000years ago when Tibet wasexperiencing the New Ston...Atotal of 28house founda-tions werefound in theKarub Ruins in Qamdo.They take the shape of acircle,half underground.They are dwelling housesbuilt as early as some 5,000years ago when Tibet wasexperiencing the New StoneAge.展开更多
Indoor thermal comfort and passive solar heating technologies have been extensively studied.However,few studies have explored the suitability of passive solar heating technologies based on differentiated thermal comfo...Indoor thermal comfort and passive solar heating technologies have been extensively studied.However,few studies have explored the suitability of passive solar heating technologies based on differentiated thermal comfort demands.This work took the rural dwellings in Northwest China as the research object.First,the current indoor and outdoor thermal environment in winter and the mechanism of residents’differentiated demand for indoor thermal comfort were obtained through tests,questionnaires,and statistical analysis.Second,a comprehensive passive optimized design of existing buildings was conducted,and the validity of the optimized combination scheme was explored using DesignBuilder software.Finally,the suitability of passive solar heating technology for each region in Northwest China was analyzed based on residents’differentiated demand for indoor thermal comfort.The regions were then classified according to the suitability of the technology for these.The results showed that the indoor heating energy consumption was high and the indoor thermal environment was not ideal,yet the solar energy resources were abundant.Indoor comfort temperature indexes that match the functional rooms and usage periods were proposed.For the buildings with the optimized combination scheme,the average indoor temperature was increased significantly and the temperature fluctuation was decreased dramatically.Most regions in Northwest China were suitable for the development of passive solar heating technology.Based on the obtained suitability of the technology for the regions of Northwest China,these were classified into most suitable,more suitable,less suitable,and unsuitable regions.展开更多
基金supported by the National Natural Science Foundation of China(Grant No.51808428)the Social Science Foundation of Shaanxi Province(Grant No.2022J175)。
文摘In order to study the thermal environment of rural dwellings in cold areas,the physical environment of rural dwellings in the Guanzhong region was taken as the research object.The thermal environment parameters,such as indoor and outdoor temperature and humidity,wall surface temperature of existing dwellings were measured,recorded,and analysed using physical environment measurements and numerical software simulations.By using Ecotect Analysis software to optimize the building envelope of existing residential buildings,the thermal analysis shows that the optimized building envelope reduces the heat transfer coefficient,increases thermal insulation,reduces building energy consumption by 59%,and increases the human comfort PMV from-2.01 to-1.40.These findings provide theoretical and data support for the construction of rural dwellings in cold regions and for research into thermal environments.
文摘People who canafford it have theirbeams and pillarscarved and painted,and have the upper part ofinner walls painted withthree colorful stripes andlower part with yellow oriight green color. On thewall are paintings,such asHarmony and Longevity.The corridor walls behindthe front gate are pastedwith portraits showing peo-ple subduing tigers and theGod of Wealth driving anelephant.
文摘Atotal of 28house founda-tions werefound in theKarub Ruins in Qamdo.They take the shape of acircle,half underground.They are dwelling housesbuilt as early as some 5,000years ago when Tibet wasexperiencing the New StoneAge.
基金supported by the National Natural Science Foundation of China(Grant Nos.52078419 and 51678483)supported by the Doctoral Dissertation Innovation Fund of Xi’an University of Technology(310–252072116).
文摘Indoor thermal comfort and passive solar heating technologies have been extensively studied.However,few studies have explored the suitability of passive solar heating technologies based on differentiated thermal comfort demands.This work took the rural dwellings in Northwest China as the research object.First,the current indoor and outdoor thermal environment in winter and the mechanism of residents’differentiated demand for indoor thermal comfort were obtained through tests,questionnaires,and statistical analysis.Second,a comprehensive passive optimized design of existing buildings was conducted,and the validity of the optimized combination scheme was explored using DesignBuilder software.Finally,the suitability of passive solar heating technology for each region in Northwest China was analyzed based on residents’differentiated demand for indoor thermal comfort.The regions were then classified according to the suitability of the technology for these.The results showed that the indoor heating energy consumption was high and the indoor thermal environment was not ideal,yet the solar energy resources were abundant.Indoor comfort temperature indexes that match the functional rooms and usage periods were proposed.For the buildings with the optimized combination scheme,the average indoor temperature was increased significantly and the temperature fluctuation was decreased dramatically.Most regions in Northwest China were suitable for the development of passive solar heating technology.Based on the obtained suitability of the technology for the regions of Northwest China,these were classified into most suitable,more suitable,less suitable,and unsuitable regions.
