一维热传导条件下测点温度与加热时间的相关性研究.pdf

Advances in Geosciences 地球科学前沿, 2016, 6(2), 72-78 Published Online April 2016 in Hans. /journal/ag /10.12677/ag.2016.62009 Correlation between the Measured Point Temperature and the Heating Time under the Conditions of One-Dimensional Heat Conduction Ziwen Liu*, Chunde Piao#, Liang Xie, Bin Li, Dashuai Yang, Dongyue Pan School of Resources and Earth Science, China University of Mining, Xuzhou Jiangsu Received: Mar. 28th, 2016; accepted: Apr. 18th, 2016; published: Apr. 21st, 2016 Copyright ? 2016 by authors and Hans Publishers Inc. This work is licensed under the Creative Commons Attribution International License (CC BY). /licenses/by/4.0/ Abstract In order to study the relationship between the changes of linear heating device testing point temperature and heating time in the heat transfer process, we study the relevance between radiation values E and the power P at the center of the heating device. Based on the nature of the surrounding conductive medium, we derived one-dimensional heat conduction model which considered the time delay parameters. We verify the suitability of the theoretical model through laboratory experiments by heating bar arrangement. The results show that test point tempera- ture slope is gradually reduced and stabilized when the test point temperature difference grad- ually rises in the effect of heat conduction. Through the measured temperature values compared with theoretical calculations, it showed that the maximum relative error reached 20% in ear