Comparative Study On Different Heating Modes Of Residential Buildings In Lhasa In Winter

In the code for design of heating,ventilation and air conditioning(GB 50019-2003),Tibet Autonomous Region was added as heating area for the first time.Lhasa urban heating industry started in 2007 and achieved the goal of full coverage of built-up area in Lhasa by 2013.Lhasa urban heating project is the first case in China,which has not been used for reference before.Due to the particularity of Lhasa city and the start of urban heating industry,the heating mode of urban residential buildings is not diversified compared with inland cities.In view of the current Lhasa urban residential building different heating methods for correct analysis and evaluation,choose suitable for the local natural,economic,energy conditions of the heating method,for the development of local social economy,improve the living comfort,improve the local fragile ecological environment and ensure social stability plays a decisive role.According to the current situation of urban residential building heating in Lhasa city and the existing heating methods,this paper selects two heating methods such as natural gas resources and electric power resources as the research object for comparative analysis.According to the indoor and outdoor temperature and humidity of the two heating methods and the surface temperature of the indoor wall,the indoor thermal and humid environment of the two heating methods are listed.Combined with the comparison of energy consumption level,economy and other aspects of different heating methods,this paper makes a comprehensive analysis from all aspects.According to the existing academic theory and field measurement data,it compares and analyzes the advantages and disadvantages of the two heating methods of existing residential buildings,and selects the best heating method suitable for the current residential buildings in Lhasa.Through quantitative comparison of various factors of the existing two heating modes in Lhasa urban residential buildings,this paper puts forward the most suitable and optimal heating mode at present,which provides reference for the selection of heating mode in the next heating project construction of Lhasa new urban areas and counties.