Study On Thermal Parameters Test System Of The Building Glass Doors And Windows

Our country belongs to the energy consumption power, dire lack of local resources and lack of local resources. According to statistics, China oil foreign dependency closed to60%in2013. The U.S. energy information administration (EIA) report estimated, China’s oil import volume amounted to6.3million barrels per day in October2013, more than6.24million barrels a day in the United States. China had replaced the America as the world’s largest oil importing country.’Energy conservation and emissions reduction’conforms to the development of China’s economic, political, military’s long-term interests. However, our country’s economy is dominated by real estate, thus’building energy conservation and emissions reduction’occupies very important position.The development of architectural heat insulation glass is very quickly in recent years. Architectural glass is used in great quantities in the building, and the thermal physical properties of architectural glass depend on directly its coefficient of thermal conductivity, thermal diffusivity and specific heat. The architectural glass with good thermal physical properties can reduce the exchange of the indoor heat with the outside world, especially in the indoor with the inner heat source. For example, indoor with air conditioning or heating system can maintain indoor heat diffusion, reduce the use of electricity and gas.To the comprehensive investigation analysis of the existing measuring methods and measuring device structure, this paper studied and put forward the new method of measuring building glass coefficient of thermal conductivity, thermal diffusivity and specific heat capacity at the same time. Designed and built the intelligent building glass thermal physical property test system and experimental apparatus. And the thermal physical parameters of other materials (including asbestos, diatomite brick) were studied by using the test equipment.Thus the generality of the test system and experimental apparatus were studied. Studies had showed that other materials test results tallied with the literature values, the relative error<5%. Test system debugging and application showed that the system had realized automatic data collection, conversion, compensation, automatic temperature control, automatic judgment data validity and automatic processing data. Under the condition of large sample size, thermal physical property parameters of test result’s repeated error can be than l%.It provides the reference for the determination of thermal physical property parameters of building materials.