The Study Of Lhasa Urban Heating System

Lhasa is the only capital city without city gas supply and heating system.So the construction of the Lhasa urban heating system will greatly improve the people's production and living conditions,enhance the quality of living and ensure the long-term stability of border areas.The ecosystem of Tibet Autonomous Region where Lhasa is in is very fragile,so the construction of efficient Lhasa urban heating systems is significant to reduce emissions of pollutants and protect the fragile ecological environment of Lhasa.Firstly,the paper introduced the basic situation of Lhasa and analyzed the heat energy conditions,as well as the current status of construction of the Lhasa heating system was investigated extensively.Through the hard work of the chapter,the situation of heating system in Lhasa has been known well,which laid the foundation for the further research.Secondly,according to the actual situation of building and weather conditions in Lhasa,the use of building energy consumption calculation software(DEST)model and calculate typical ordinary residential buildings,public buildings and heritage buildings to obtain heat consumption and heating units heat index of three types of building.Moreover developed a energy saving renovation plan for all the buildings,and predicted the heat supply in 2020.Thirdly,a variety of heating ways,like central heating,decentralized heating,electric heating and others were studied,analyzed and compared in operating characteristics,advantages and disadvantages.Furthermore principles of selecting Lhasa heating mode were established.In the end,based on the above chapters,Lhasa heating planning schemes for every district in 2015 and 2020 were developed.