内置式温差发电器对流-辐射耦合传热模拟  

Simulation of Convective-radiative Coupling Heat Transfer for the Intramural Thermoelectric Generator

作　　者：张征[1] 黄勇勇 黎启柏[1] 

机构地区：[1]华南理工大学机械与汽车工程学院,广东广州510640 [2]广州汽车集团客车有限公司,广东广州510430

出　　处：《机床与液压》2011年第13期23-25,共3页Machine Tool & Hydraulics

基　　金：广东省高新技术产业化项目(2009B010900019)

摘　　要：对一种内置式温差发电器的对流-辐射耦合热特性进行了数值计算,分别得出其排气通道中,内置的转换元件和通道内壁面的换热量,在不同流速、温度、灰度条件下的变化趋势。基于Fluent的仿真结果表明:在高速、高温流动的条件下,内置转换元件的换热量以对流换热为主,内壁面的对流换热量与辐射换热量接近,而内置转换元件的总换热量高于内壁面的总换热量。The coupling characteristics of heat convection-radiation were calculated for an intramural thermoelectric generator. Under different conditions of flow speed, temperature and grey scales, the change trends of heat transfer quantity of the component surface, channel inner wall were obtained respectively. By Fluent software, the calculation results show ： main heat transfer form of the component is convection heat transfer, convection and radiation heat transfer for the channel wall is at about same level, and the total heat transfer quantity is higher on the component surface than on the channel wall under conditions of high flow speed and high temperature.

关 键 词：温差发电器 对流 辐射 数值模拟 

分 类 号：TM913[电气工程—电力电子与电力传动]