Peculiarities of heat flow of insulation constructions in buildings with cold underground
2011
Iljins, U., Latvia Univ. of Agriculture, Jelgava (Latvia). Faculty of Information Technologies. Dept. of Physics | Gross, U., Latvia Univ. of Agriculture, Jelgava (Latvia). Faculty of Information Technologies. Dept. of Physics | Skujans, J., Latvia Univ. of Agriculture, Jelgava (Latvia). Faculty of Rural Engineering. Dept. of Architecture and Building
A popular solution in construction is an unheated garage or storehouse premises on the first or the socle floor of a building. Monolith concrete is the most common material for the first or the socle floor constructions in such cases. All surfaces of the construction disposed to outside air are insulated, and seemingly no cold bridges are developed. But the cold bridge can appear at places where the heat flow is not homogeneous. In this construction it is a place where the floor covering collides with the external wall. The thermal coefficient of linear thermal bridge has been calculated analytically with approximation and using the computer program ANSYS. Comparing both solutions, it can be stated that approximation of such types in analytical calculations does not show significant mistakes, and the obtained results are precise both qualitatively and quantitatively. The authors have offered a solution to prevent the heat loss caused by cold bridge, and it has been calculated using the ANSYS program.
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