Study On Thermal Performance And Application Of The Residential Building Wall Materials In The Southern Of Shaan Xi

The face of the current global energy crisis, environment worsening situation, allover the world to carry out energy conservation research work. Related studies indicatedthat, the wall and window thermal insulation properties, is the key of building energyconservation, and the development of wall materials, it is implementation energy-savingbuilding foundation. The area austral short for Shaanxi Province rich shale resources,local wall material to obtain raw material locally, sintered shale porous brick andhollow brick, but local shale brick thermal properties and application of no relevantresearch data, the thermal insulation properties and no room for improvement, thefender structure whether it satisfies the relevant requirements, in view of the aboveproblems, this paper makes the following research:The first use of Ansys software FLUENT module, combined with air layer heattransfer characteristics, considering pore ratio of length to width, hole number and thecolumn number, arrangement and different air interlayer structure of holes for shaleporous brick thermal performance, simulation results show that: with the increase ofrectangular orifice aspect ratio of porous brick insulation effect is better; to increase thehole arrangement number, porosity and pore ribs extending the line coefficient, thethermal performance of porous brick has different rate rise. The market of240mm115mm90mm porous brick simulation analysis of thermal conductivity coefficientof0.46W/(m K), optimal design of the porous brick a simulation analysis of thethermal conductivity coefficient of0.43W/(m K), and the market compared toporous brick, decreased about6%.The experiment shows that, the shale hollow brick wall coating and low radiationmaterial and filled with insulating material, can reduce the equivalent coefficient of heatconductivity of the brick body. Thermal conductivity of the equivalent of0.50W\/(m K), decreased by13.7%; the latter equivalent thermal conductivity was0.425W\/(m· K), reduced by26.7%.This paper selected a typical residential building in the south of Shaanxi Provinceas the research object, based on the experimental results, on the basis of southernclimate characteristics, to establish the simulation model, then using the DeST-hsoftware simulation calculation of two kinds of experimental results, different heattransfer coefficient of building load effects, the exterior wall structure optimization.Through the software simulation and experiment, the southern residential buildingthermal performance of wall material and its application has more in-depthunderstanding, and the exploration of improving the thermal insulation property, theresearch on shale brick and promotion of building energy efficiency has certain theoryvalue and the practical significance.