Thermal Performance Analysis of Anti-condensation of Thermal Bridge Part of PKPM Building Energy-saving Envelope Structure
In this paper,according to the change of dew point temperature,the project calculated and analyzed the thermal performance of the enclosure structure with the help of PKPM energy-saving software,and verified that the condensation of the thermal bridge is not only related to the configuration of the insulation material of the enclo-sure structure,but also has a great relationship with the relative humidity and room temperature.In the improve-ment and treatment,Low-E insulating glass,broken bridge aluminum structure,polyurethane bonding mortar and other materials with small thermal conductivity coefficient are selected to reduce the thermal conductivity of the en-closure structure,optimize the process of the enclosure structure,keep the indoor relatively dry,and infrared ther-mal imaging instrument is used to measure the thermal insulation performance and air tightness during the con-struction process.It can effectively prevent the thermal insulation performance of the thermal bridge of the enclosure structure from decreasing and the heat transfer coefficient from increasing due to local quality problems in the con-struction process.According to the current promotion and application of building energy efficiency,passive building is the best choice for thermal bridge design and construction(no condensation).
dew point temperaturePKPMheat bridgeinsulation materialrelative humiditythermal conduc-tivity coefficientinfrared thermal imagerpassive building
万方数据
维普
