Thermal conductivity of lead in the temperature range of 350-1000 °С
A.B. Kruglov, V.I. Rachkov, I.G. Merinov, V.S. Kharitonov, L.P. Paredes
a:2:{s:4:"TEXT";s:59:"National Research Nuclear University “MEPhI”, Moscow,Russia";s:4:"TYPE";s:4:"text";}
Keywords: pulse heating method, thermal conductivity coefficient of lead, impurities in lead, thermal resistance of contact of lead melt and steel
Abstract
The article presents the results of measuring the coefficient of thermal conductivity of lead in the temperature range of 350-1000 °C using the pulse heating method. The methodology of processing experimental data is described. The estimates of the experimental data error are given. The difference in the content of impurities in the lead samples is shown to have an in significant effect on the thermal conductivity coefficient of the lead melt. The deviation of the experimental data on the thermal conductivity of lead from the proposed interpolating dependence does not exceed ±2 %. The obtained data are compared with the known recommended dependences for calculating the thermal conductivity coefficient of lead.
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