| 对流边界条件下墙体表面温度响应特性的评价指标 |
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| 引用本文： | 张海舡,张辉.对流边界条件下墙体表面温度响应特性的评价指标[J].南京工业大学学报(自然科学版),2006,28(3):57-60. |
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| 作者姓名： | 张海舡 张辉 |
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| 作者单位： | 1. 南京工业大学,机械与动力工程学院,江苏,南京,210009
2. 东南大学,动力工程系,江苏,南京,210018 |
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| 摘 要： | 为研究问歇供热（或供冷）条件下墙体表面的温度响应，采用解析方法分析了对流边界条件下半无限大物体的非稳态传热过程中表面温度变化规律，发现壁温变化与组合物性参数铷成线性关系。以此为基础，提出了墙体材料“特征时间系数”的定义，并将其作为墙体表面温度响应特性的通用评价指标。
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| 关 键 词： | 非稳态传热 墙体 温度响应 |
| 文章编号： | 1671-7643(2006)03-0057-04 |
| 收稿时间： | 2005-04-30 |
| 修稿时间： | 2005年4月30日 |
Evaluation index of wall temperature response under the convective boundary condition |
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| ZHANG Hai-xiang,ZHANG Hui.Evaluation index of wall temperature response under the convective boundary condition[J].Journal of Nanjing University of Technology,2006,28(3):57-60. |
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| Authors: | ZHANG Hai-xiang ZHANG Hui |
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| Institution: | 1. College of Mechanical and Power Engineering, Nanjing University of Technology, Nanjing 210009, China; 2. Department of Power Engineering, Southeast University,Nanjing 210018, China |
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| Abstract: | In order to study the wall surface temperature response under intermittent heating or cooling, the wall temperature variation vs. time of a semi-infinite body under the convective boundary condition was analyzed. The result shows that the temperature response is a linear function of the combined thermal physical property kpc. Based on this result, the response time coefficient was proposed to be as a general evaluation index for the wall temperature response. |
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| Keywords: | transient heat conduction wall temperature response |
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