| Research on temperature profiles of honeycomb regenerator with asymptotic analysis |
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| 作者姓名： | AI Yuan-fang MEI Chi HUANG Guo-dong JIANG Shao-jian CHEN Hong-rong |
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| 作者单位： | School of Energy Science ＆ Engineering, Central South University, Hunan Changsha, 410083, P. R. China |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 1 Introduction 1 High temperature air combustion (HTAC) 1] can offer significantly improved thermal efficiency, reduced NOx emission and uniform heat flux field. Most of HTAC use the honeycomb regenerative system to preheat the air to a temperature above…
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| 关 键 词： | 蜂巢式再生器 温度曲线图 渐近分析 热转变 |
| 文章编号： | 1671-8224（2006）02-0077-06 |
| 收稿时间： | 2006-01-09 |
| 修稿时间： | 2006-02-17 |
Research on temperature profiles of honeycomb regenerator with asymptotic analysis |
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| AI Yuan-fang MEI Chi HUANG Guo-dong JIANG Shao-jian CHEN Hong-rong.Research on temperature profiles of honeycomb regenerator with asymptotic analysis[J].Journal of Chongqing University,2006,5(2):77-82. |
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| Authors: | AI;Yuan-fang;MEI;Chi;HUANG;Guo-dong;JIANG;Shao-jian;CHEN;Hong-rong |
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| Abstract: | An asymptotic semi-analytical method for heat transfer in counter-flow honeycomb regenerator is proposed. By introducing a combined heat-transfer coefficient between the gas and solid phase, a heat transfer model is built based on the thin-walled assumption. The dimensionless thermal equation is deduced by considering solid heat conduction along the passage length. The asymptotic analysis is used for the small parameter of heat conduction term in equation. The first order asymptotic solution to temperature distribution under weak solid heat conduction is achieved after Laplace transformation through the multiple scales method and the symbolic manipulation function in MATLAB. Semi-analytical solutions agree with tests and finite-difference numerical results. It is proved possible for the asymptotic analysis to improve the effectiveness, economics and precision of thermal research on regenerator. |
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| Keywords: | honeycomb regenerator temperature profile asymptotic analysis |
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