Displaying similar documents to “Identification of basic thermal technical characteristics of building materials”

On the computational identification of temperature-variable characteristics of heat transfer

Vala, Jiří

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The mathematical analysis of a heat equation and its solutions is a standard part of most textbook of applied mathematics and computational mechanics. However, serious problems from engineering practice do not respect formal simplifications of such analysis, namely at high temperatures, for phase-change materials, etc. This paper, motivated by the material design and testing of a high-temperature thermal accumulator, as a substantial part of the Czech-Swedish project of an original equipment...

On the thermal aspect of dynamic contact problems

Christof Eck, Jiří Jarušek (2001)

Mathematica Bohemica

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A short survey of available existence results for dynamic contact problems including heat generation and heat transfer is presented.

Numerical aspects of the identification of thermal characteristics using the hot-wire method

Vala, Jiří

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The hot-wire method, based on the recording of the temperature development in time in a testing sample, supplied by a probe with its own thermal source, is useful to evaluate the thermal conductivity of materials under extremal loads, in particular in refractory brickworks. The formulae in the technical standards come from the analytical solution of the non-stationary equation of heat conduction in cylindric (finally only polar) coordinates for a simplified formulation of boundary conditions, neglecting...