Shumska L. Technological bases of thermal pore formation in insulation materials with prediction of thermal characteristics and intensification of heatexchange process

The thesis is devoted to theoretical and experimental study of thermal physical characteristics of creation of new porous heat-insulating materials, namely, study of thermodynamic parameters of the processes of heating, blowing-up and drying of raw materials, the rationale for choosing the method of forming the raw mix and also determining the optimal power parameters for the blowing-up process; the development of mathematical models of material’s heat treatment process and method for determining the main technological parameters; the development of advanced technologies for thermal protection of buildings and power equipment. It is experimentally determined the dependences of technological parameters of heat treatment of the raw material mixture in the swelling process, its composition, which allows obtaining material with a minimum thermal conductivity. Also the found dependences allow finding the required mode of heat treatment to obtain the desired thermal characteristics. The experimental setup has been designed, which allows determining the main regularities of thermal conductivity of porous material, on the basis of which the data have been obtained, allowing evaluating heat-mass-exchange characteristics of a new dispersed porous material that is necessary for technological calculations. It was developed the integrated mathematical model of buildings` heat-to-humidity regime and program for solving the equations of this model, which allows determining the basic energy characteristics.