新型填料湿化器热力性能实验研究  

EXPERIMENTAL INVESTIGATION ON THERMAL PERFORMANCES OF A NOVEL PACKED HUMIDIFIER

作　　者：刘建建[1,2] 徐震[1] 肖云汉[1] 

机构地区：[1]中国科学院先进能源动力重点实验室(工程热物理研究所),北京100190 [2]中国科学院研究生院,北京100049

出　　处：《工程热物理学报》2010年第9期1445-1448,共4页Journal of Engineering Thermophysics

基　　金：国家863资助项目(No.2007AA05Z238);国家973资助项目(No.2007CB210102)

摘　　要：湿化器是湿空气透平(HAT)循环的关键部件。本文对加压条件下采用新型SiC泡沫陶瓷填料的湿化器的热力性能进行了实验研究,分析了操作压力、水气比等参数对湿化过程的影响。在此基础上,通过归纳实验数据,建立了能够预报湿化器变工况性能的无因次关联式。研究表明,随湿化器内操作压力增加,出口空气含湿量及气液两相间传热量减小,出口空气温度增加。随水气比增加,填料传质单元高度减小,气侧体积传质系数和气侧体积传热系数均提高。The humidifier is a key component in the humid air gas turbine.An experimental study of the thermal performance is conducted for a pressurized humidifier filled with a novel SiC foam ceramic structured packing. This study analyzes the effect of operation pressure, water-air mass ratio on the humidification process. On this basis, a dimensionless correlation, which can predict the off-design of the humidifier, is obtained by dealing with experimental data. It is shown that with an increase in the operation pressure, there will be a decrease in the outlet moisture and total heat transfer, but an increase in the outlet air temperature. With an increase in the water-air mass ratio, there will be a decrease in the mass transfer unit height, but an increase in the volume mass transfer coefficient and volume heat transfer coefficient.

关 键 词：HAT循环 填料湿化器 热力性能 无因次关联式 

分 类 号：TK123[动力工程及工程热物理—工程热物理]