MATEC Web of Conferences
Volume 23, 2015Heat and Mass Transfer in the Thermal Control System of Technical and Technological Energy Equipment
|Number of page(s)||6|
|Published online||31 August 2015|
Process Simulating of Heat Transfer in High-temperature Thermocouples
1 National Research Tomsk Polytechnic University, 634050 Tomsk, Russia
Numerical research of integral characteristics of process of heattransfer in sensitive elements of R, A and B types thermocouples in case of measurement of high temperatures (more than 900 K) is executed. Theoretical dependences of minimum necessary duration of heating up of the thermocouple on value of temperature on boundary of a sensitive element are received. It is shown the thermocouple of R type requires bigger time of heating for obtaining satisfactory accuracy of measurements. Temperature fields in sensitive elements of the specified thermocouples are received. It is shown that distribution of temperature on the thermocouple not linearly and has similar character for the researched thermocouples.
© Owned by the authors, published by EDP Sciences, 2015
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