The Energy Consumption Analysis And Research Of Jinan Construction Thermal Bridge

Thermal bridge is generally exiting in the inhabiting and public construction, the thermal bridge exerts a tremendous influence to building energy consumption and quality of the hot environment in the room. At present, the consuming heat energy through the thermal bridge of the building is above 25%; Energy-conserving potentiality is enormous, thermal bridge is an energy-conserving important respect of building and the important part of fundamental state policy of economizing the energy, protect the environment".The building heating energy consumption of Shandong Province is large, therefore, it is an very urgent and arduous tasks before us to work out the advancement and effective technological measure and reduce thermal bridge influence and rapidly reduce building heating energy consumption of Shandong Province.The research aims at announcing the mechanism of dispelling the heat of the buildings' thermal bridge and study the change law of dispelling the heat in the buildings' thermal bridge through the subject study, and then the measure for suppressing or eliminating the thermal bridge of the building can be proposed and offer the reliable basis for realizing the energy-conserving goal of the building.In order to make clear the change law of dispelling the heat of the thermal bridge of building and propose the measure for suppressing or eliminating the thermal bridge of the buildings; the subject is according to the meteorological condition of Jinan, to emulation computational analysis and study to the energy-conserving energy consumption of residential housing at first. Through the analysis and studying of this subject, we can make conclusion as followed: That the heat consuming through the main exterior-protected construction in the energy-conserving residential housing reduces more than in the traditional buildings.I establish the relation of consume heat of the thermal bridge and the meteorological parameter inside and outside rooms of Jinan and constructing pattern of thermal bridge in the Energy-conservation buildings. Through the analysis and studying of this subject, we can make conclusion as followed: During the whole heating season, the change law of the energy consumptionof the thermal bridge is with the change law of the meteorological condition inside and outside the room: when airs temperatures indoor is steady, thermal bridge energy consumption increases with reducing of air temperature outside the room, reduce oppositely. The different position and the different structure patterns of the thermal bridges, even under the same meteorological condition inside and outside of the room, energy consumption of the building is different, and impact on heating energy consumption is different, this is mainly caused by the difference of the constructs thermal bridge and different influence in term of out wall, which lead to total mean heat-transfer coefficient different, when the heat-transfer coefficient is relatively small of outer wall, the impact of wall body is more obvious on heat-transfer coefficient of the thermal bridge.I set up the mathematics model of heat transfer of the thermal bridge of the building and utilize numerical method to analysis whether occur condensation problem on the internal surface in the thermal bridge or not. Through the analysis and studying of this subject, we can make conclusion as followed: Because the internal surface of the bared wall body incline to be lower than the air dew point indoor, which apt to dew, with the reducing of out air temperature and increasing of the air temperature indoor.The thermal bridge adopts which kind of insulation treatments to reduce thermal bridge energy consumptions through instance analysis. Through the analysis and studying of this subject, we can make conclusion as followed: The condensation is getting severely impaired, adopt outside insulation treatment in the position of the thermal bridge, which is an effective measures to reduce the energy consumptions of the buildings' thermal bridge. Simultaneously, has thro...