18-20 June, 2003, Budapest, Hungary OSSKI Center (Törley Palace)

with Exhibition and Pre-Session on Thermal Energy in Hungarian
"THERMO-BRIDGE"
between East and West for technology transfer and information exchange

Thermal bridges are those parts or components of a physical structure that have better thermal conductance than their environment i.e. than that of the structure whose parts they are. Thermal bridges cause excess heat loss. One can find thermal bridges in the envelope, refractory of energy generation/conversion equipment, in building structures and other mechanical systems that are involved in heat transfer [2]. Theoretical analysis of thermal bridges are well supplemented by the results of infrared thermogrammetry (IR-TGM) that help in finding their location, identifying the boundary conditions and verifying theoretical conclusions.
In determining the temperature distribution along and across the thermal bridges, the method of electric and other modelling is often used besides theoretical solution of the temperature-potential field. However, the partial solution requires accurate information on the boundary conditions of heat transfer that can usually be identified by measurements. This is where IR-TGM is of particular importance as this method, besides locating the thermal bridges can measure the temperature distribution of boundary surfaces [4,6,7].
The paper presents examples for the analysis of thermal bridges in energy conversion/transportation equipment and building structures.The examples feature the identification of thermal bridge locations and the excess heat loss.

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OSSKI Center (Törley Palace)
"Fodor József" National Center of Public Heath
"Frédéric Joliot-Curie" National Research Institute for
Radiobiology and Radiohygiene. (OKK-OSSKI)
www.osski.hu