Experimental research on heat transfer and flow characteristics of an NF-type enamel heat storage element

GAO Jianqiang; GU Xingpeng; WEI Riguang

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Experimental research on heat transfer and flow characteristics of an NF-type enamel heat storage element

更新时间：2025-09-28

- Experimental research on heat transfer and flow characteristics of an NF-type enamel heat storage element
- Thermal Power Generation Vol. 43, Issue 12, Pages: 44-48(2014)
- 作者机构：
  
  华北电力大学能源动力与机械工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK223.34
- Published：2014
- 稿件说明：
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GAO Jianqiang, GU Xingpeng, WEI Riguang. Experimental research on heat transfer and flow characteristics of an NF-type enamel heat storage element[J]. Thermal power generation, 2014, 43(12): 44-48.
DOI：

GAO Jianqiang, GU Xingpeng, WEI Riguang. Experimental research on heat transfer and flow characteristics of an NF-type enamel heat storage element[J]. Thermal power generation, 2014, 43(12): 44-48. DOI：

摘要

回转式空气预热器(空预器)的传热与流动特性和所用蓄热元件的类型密切相关。搭建了回转式空预器蓄热元件传热与流动特性实验台

并通过周期性的风门切换

使得冷、热风交替冲刷蓄热元件

模拟回转式空预器的非稳态换热过程。通过实验研究NF型搪瓷蓄热元件不同雷诺数下的努塞尔数、压降以及阻力系数的变化规律

得出其传热和流动特性的拟合公式。

Abstract

The heat transfer and flow characteristics of rotary air preheater is closely related to the type of the heat storage element

in which the NF-type enamel heat storage elements can be used in the cold end of rotary air preheater.However

the heat transfer and flow characteristics requires further study.The experimental system was built up for studying the heat transfer and flow characteristics of the heat storage element.By switching the damper periodically

the cold and hot air scours the storage element alternately

thus the unsteady heat transfer process of rotary air preheater is simulated.Through experimental study on change rules of the NF-type enamel heat storage elements' Nusselt number

pressure drop and drag coefficient with different Reynolds numbers

the NF-type enamel heat storage elements' fitting formulas of heat transfer characteristics and flow characteristics were obtained.

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Related Author

GU Xingpeng

ZHANG Lei

YANG Xiangzhao

WEI Riguang

GAO Jianqiang

HUANG Kuo

YANG Xiaoping

DU Juan

Related Institution

School of Energy, Power and Mechanical Engineering, North China Electric Power University

Key Laboratory of Enhanced Heat Transfer

Guangdong Provincial Key Laboratory of Distributed Energy Systems,Dongguan University of Technology

Department of Chemistry and Chemical Engineering,Lishui University

浙江杭州３１００２７

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