Pavel Žvanut in Goran Turk in Andrej Kryžanowski (2015) Effects of Changing Surrounding Conditions on the Thermal Analysis of the Moste Concrete Dam. Journal of Performance of Constructed Facilities . str. 1-9. ISSN 0887-3828 (V tisku)
Povzetek
This paper deals with the heat transfer analysis of the 63 years old and 60 metres high Moste concrete arch-gravity dam, located in NW Slovenia, which was performed after a new sophisticated monitoring system had been established, making it possible to perform continuous measurements of the temperatures of the concrete, of the water, and of the surroundings of the dam, i.e. the air temperatures and the amount of solar insolation. An equation defining nonlinear and non-stationary heat conduction in the case of a two-dimensional space, for a homogeneous isotropic solid whose thermal conductivity is independent of temperature, was solved numerically by means of the finite element method, taking into account appropriate boundary conditions. The latter involved the effects of changing conditions of the surroundings (i.e. shading, convection, and solar radiation) during the analysed period of 15 consecutive clear days in the summer. The results show that the measured and calculated temperatures of the concrete at different locations, and at different depths, were in very good agreement.
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