Technical and Economic Analysis of Heating System for Temporary Buildings in Winter in High and Cold Regions:A Case Study of Golmud,Qinghai Province
The temporary building has a wide application prospect in high and cold area because of its detachable,movable and convenient transportation and assembly.However,the poor thermal insulation capacity of temporary buildings leads to a significant increase in building heating energy consumption,coupled with short life cycle of temporary buildings.Therefore,in the choice of heating scheme should pay more attention to the combination of economy and technology.In this paper,the annual cold and heat loads of a temporary building in Golmud area of Qinghai province are simulated by DeST software.The simulation results show that the annual cumulative heat load of the building in Golmud is 60287.58 kWh,and the annual cumulative cooling load is 134052.39 kWh.The cooling load in Golmud is about 2.2 times of the heat load,most of the cooling load is caused by kitchen cooking and greenhouses.Local cool summer,natural ventilation can improve indoor thermal comfort without air conditioning,so we only consider heating in winter.When analyzing the heating scheme of the temporary building,three heating schemes of split type heating,diesel heating machine and boiler room radiator are selected.The initial investment cost and annual operation cost of the heating scheme of diesel heater are the lowest,which are 25,000 yuan and 140,800 yuan respectively.Combined with the technical and economic analysis,the diesel heater is the optimal heating scheme for the temporary building.
High-altitude and cold regionTemporary buildingsBuilding load simulationHeating scheme
NETL
NSTL
万方数据
