第18卷第4期 2018年8月
过程与工艺
过程工程学报
The Chinese Journal of Process Engineering
Vol.18 No.4 Aug.2018
DOI: 10.12034/j.issn.1009-606X.218109
Measurementmethodandapplicationofthermophysicalpropertiesofsolid
materialsbasedonenantiomorphousheat-sourceprinciple QinghuaCHEN'，GuoyongSU'，YangbinMA2，KuoshengJIANG
1. School of Mechanical Engineering, Anhui University of Science and Technology, Huainan, Anhui 232001, China 2. School of Materials Science, Technische Universitait Darmstadt, Darmstadt, Germany D-64287
Abstract: Based on the parallel hot-wire method and the principle of enantiomorphous heat-source, a new model for measuring the thermophysical parameters of solid materials was proposed. On the basis of the principle of hotline test, the existence of virtual mirror heat-source at the symmetrical position of the real heat-source was taken as the boundary of the adiabatic boundary of the specimen, so as to eliminate the influence of the heat accumulation effect caused by the adiabatic boundary. Therefore, the test can no longer limit the experimental time and sample thickness When the calculation results of the thermal physical parameters in the adjacent time were greater than that of the criteria proposed, the mirror heat-source was introduced to correct the calculated temperature. In order to avoid the dependence of the thermal physical parameters on the calculated value at the initial stage of the experiment, the measured temperature was corrected by the model two times. Asbestos as the research object, through the theoretical analysis combined with numerical calculation, shows that there was a difference between the two correction results but the difference was not large and the second correction of the thermophysical parameters of the calculation results more stable. The thermal property test applied to the asbestos board, marble, borosilicate glass, silica brick and other 4 kinds of thin and thick material. The results showed that it was consistent with the measured values of other methods in the literature, and the maximum error was less than 5%. This test method was validated for the thin plate samples and thick plate samples, effectively improving the hot wire method test accuracy and expanding the scope of application..
Key words: solid material; thermo-physical parameters; parallel hot-wire method; enantiomorphous heat-source;
measurementsystem
收稿：20180110,修回：20180326,网络发表：20180426.Received:20180110,Revised:20180326,Published online:20180426
基金项目：安微省自然科学基金资助项日(编号：1408085ME107)：中国博士后科学基金资助项日(编号：2014M561807)：安徽省高校优秀青年人才支持
计划重点项目(编号：gxyqZD2016087）
作者简介：陈清华(1978-)，男，安徽省窄州市人，博士，教授，主要从事材料热物性测试方法研究，E-mail:ahhnds@163.com
引用格式：陈清华，苏国用，马杨煤，等，基于镜像热额原理测定固体材料热物性的方法及应用。过程工程学报，2018，18(4)：735-742.
Chen QH, Su G Y, Ma YB, etal. Measurement method and application of thermophysical properties of solid materials besed on
enantiomorpbous heat-source principle (in Chinese), Chin. J. Process Eng, 2018, i8(4): 735742, DOL: 10.12034/jissn.1009-606X.218109.
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