重庆理工大学学报（自然科学版）2017，Vol.31Issue(11)：94-101,8.DOI:10.3969/j.issn.1674-8425(z).2017.11.014
基于一维假设的瞬态换热实验的误差修正
Error Correction of Transient Heat Transfer Experiment Based on One Dimensional Hypothesis
摘要
Abstract
Knowing the time at which the termochromic liquid crystal (TLC) changes color,then the heat transfer coefficient can be calculated applying the analytical solution of one-dimensional semiinfinite plate hypothesis transient heat conduction.However,this process disregards lateral-conduction error,so this paper analysis theoretically the error caused by lateral heat conduction due to temperature distribution on the surface.Also the results from one-dimensional plate hypothesis and the corrected results are compared and analyzed.When the non-dimensional excess temperature ranges between 0.44 and 0.55,and using narrow band TLC to measure the heat transfer coefficient on the disk between non-dimension radius of 0.77 ～ 0.94,the error due to lateral heat conduction would be controlled within 1.5％.关键词
热色液晶/瞬态实验/旋转盘腔/横向热传导/误差Key words
thermochromic liquid crystal/transient experiment/rotating cavity/lateral conduction/error分类
能源科技引用本文复制引用
王蕾,马庆辉,罗翔..基于一维假设的瞬态换热实验的误差修正[J].重庆理工大学学报（自然科学版）,2017,31(11):94-101,8.基金项目
国家自然科学基金资助项目(50806004) （50806004）
