作　　者： ; ;

机构地区： 华南理工大学机械与汽车工程学院

出　　处： 《压力容器》 2013年第8期38-45,共8页

摘　　要： 蓄热式换热器是高温有机化合物废气氧化器的核心部件之一。提出了一种带有赤藓糖醇相变材料的翅片缩放管式蓄热体,并用数值模拟的方法对蓄热体蓄放热过程的热工特性进行研究,分析了翅片厚度对蓄热体传热性能的影响。模拟结果表明:翅片缩放管(翅片厚2 mm)在蓄/放热阶段的传热速率分别比光管缩放管高13%和9%,一定条件下适度增加翅片厚度有助于提高蓄热体的蓄放热性能。所得结论为今后翅片缩放管相变蓄热体的优化设计提供了理论依据。 Regenerative heat exchanger exhaust gas oxidizer. A fin converging is one of the key units of high- temperature organic compounds -diverging channel regenerator filled with Erythritolas phase change materials（PCM） was proposed. The thermal characteristics of regenerator during charge and dis- charge process were performed by using the numerical simulation method. The influences of fin thickness on the heat transfer performance were analyz,M. The numerical simulation results indicate that the heat transfer rate of fin converging - diverging channel regenerator （2 mm thickness） during charge and dis- charge process was 13% and 9% performance can be improved by study can provide good references ~enerator. higher than that of fin less respectively. Also, the charge and discharge increasing the thickness of fin under certain conditions. As a result, the for the design and optimization of fin converging - diverging channel re-

关 键 词： 蓄热式换热器 相变材料 翅片缩放管式蓄热体 数值模拟 相变传热

领　　域： [机械工程]