Experimental Study Of Vitrified Beads Hermal Insulation Wall On The Performance Of Heat Insulation In Hot Summer And Cold Winter Zone

With the advance of human society, the energy consumption of building get much more attention on people, many new thermal insulation materials are launching. This paper mainly studied the vitrified beads insulation external thermal insulation wall applied in summer and winter region, combined with life cycle cost analysis method, calculate the best insulation thickness of the vitrified beads insulation system in the summer and winter area, and through the heat transfer coefficient test to verify its energy saving. The main researchs are as follows:According to the life cycle cost analysis that deduced the DOP formula of the thickness of insulation layer of the economy and the analysis the influence of various parameters on the thermal insulation layer thickness of economic in the formula. Calculating the the best thickness of insulation layer of common external thermal insulation wall vitrified microsphere by using the formula:the best thermal insulation layer thickness of sintered porous brick as the main structure of the wall is 34 mm, the best thickness of using clay brick as the structure of the wall is 57 mm, the best thickness of using lime-sand brick as the main structure of the wall is54 mm. Finally, through the calculation of economic recovery, prove that choosing the optimal thickness of insulating layer, thermal insulation wall saves both energy and money. Calculating the insulation layer thickness is greater than the thickness that only consider the economical requirement, and suggested to choose the former as the optimal, to make the cost of the wall at the lowest. Through the calculation of economic recovery, it can prove that choosing the optimal thickness of insulating layer, the thermal insulation wall saves both energy and money.Further study of the wall thermal insulation system performance of the vitrified microsphere, we test three different thickness of thermal insulation layer of the vitrified beads on the heat transfer coefficient of wall thermal insulation system. Results show that the porous brick as the main structure optimum thermal insulation layer thickness of the wall thermal insulation system vitrified microsphere, its heat transfer coefficient can satisfy the energy-saving standard of the summer and winter region, and the clay brick and lime-sand brick as the main structure of the optimal thickness of insulating layer insulation system of vitrified microsphere wall energy-saving standard can’t satisfy the summer and winter region,can choose the thickness of the optional extra thick insulation. Through experiment that we know the moisture content of vitrified beads wall thermal insulation system has important effects on the heat transfer coefficient of the wall, the temperature difference has little influence on the wall heat transfer coefficient. Therefore, we should try to reduce the moisture content of the wall in the practical engineering, and according to the climate in summer and winter region, can take no consideration on the effect of temperature of the wall heat transfer coefficient.According to the combination of theory and experiment to test the Insulation wall of vitrified beads of condensation phenomenon. Found by calculation:porous brick for 240 mm for the main structure of the insulation system of vitrified microsphere wall, insulation layer thickness is 20 mm,30 mm, and 40mm does not appear condensation phenomenon, and with the increase of the insulation layer thickness, the thermal insulation layer and the outer wall plastering mortar combining site increases the possibility of condensation.In this paper, we have do some research of the wall of Vitrified beads insulation system, the study results show that:through the actual project to calculate the thickness of the insulation system of vitrified beads, the best insulation wall is energy-saving and economic, can be popularized and promoted in summer and winter area.