Device for heat transport parameters monitoring of solids

0434991 - ÚGN 2015 RIV GR eng C - Konferenční příspěvek (zahraniční konf.)
Koštial, P. - Ružiak, I. - Igaz, R. - Jančíková, Z. - Rusnák, V. - Garzinová, R. - Hlaváček, Petr
Device for heat transport parameters monitoring of solids.
Latest Trends on Systems - Proceedings of the 18th Conference on Systems. Vol. 1. Santorini Island: CSCC, 2014 - (Mastorakis, N.; Pssaris, K.; Vachtsevanos, G.), s. 234-238. Recent Advances in Electrical Engineering Series. ISBN 978-1-61804-243-9.
[International Conference on Systems /18./ 2014. Santorini Island (GR), 17.07.2014-21.07.2014]
Grant CEP: GA MŠMT ED2.1.00/03.0082
Institucionální podpora: RVO:68145535
Klíčová slova: heat capacity * thermal conductivity * solid state materials
Kód oboru RIV: JQ - Strojní zařízení a nástroje

The paper is devoted to the presentation of apparatus for measurement of thermal conductivity k (W•m-1•K-1), specific heat capacity cp (J•kg-1•K-1) and thermal diffusivity α (m2•s-1) applying the lumped capacitance model (LCM) as a special case of Newton’s model of cooling. At the specific experimental conditions resulting from the theoretical analysis of the used model, we present relatively very precise method for experimental determination of all three above mentioned thermal parameters for materials with different thermal transport properties. The input experimental data provide a cooling curve of the tested material obtained in special experimental arrangement. The evaluation of experimental data is realized by special software the fundamental features of which are presented here. The statistical analysis of experimental data was performed. The precision of k, cp and α determination is relatively high which is demonstrated by statistical confidence interval P99 as well as by comparison with table data or independent measurements.
Trvalý link: http://hdl.handle.net/11104/0238927