水电站无压尾水洞引风热湿交换的预测模型  

Prediction Model of Heat and Moisture Transfer of Tailrace Tunnel Ventilation in Hydropower Station

作　　者：余延顺[1] 李先庭[2] 石文星[2] 

机构地区：[1]南京理工大学动力工程学院,江苏南京210094 [2]清华大学建筑技术科学系,北京100084

出　　处：《南京理工大学学报》2008年第1期73-77,共5页Journal of Nanjing University of Science and Technology

基　　金：江苏省自然科学基金创新人才启动项目(BK2007595);南京理工大学科研发展基金(XKF07007)

摘　　要：在水-空气热湿交换理论基础上,通过分析无压尾水洞引风热湿交换过程的特点,建立了无压尾水洞内空气与尾水、空气与洞壁之间的热湿交换集总参数模型,得出了无压尾水洞内沿程空气参数的解析解,并应用模型试验与现场测试对预测模型进行了验证。同时应用该模型对无压尾水洞引风参数进行了预测分析。这些结果为水电站无压尾水洞引风系统的应用提供了理论基础与设计依据。Based on heat and moisture transfer theory, the lumped parameter prediction model of heat and moisture transfer between air and tailrace water, air and tailrace tunnel surface is established by analyzing the performance of heat and moisture transfer process of tailrace tunnel ventilation. The analytical solution of air parameters in tailrace tunnel is presented, and the model is validated by the experiment in laboratory and field test. The air parameters of tailrace tunnel ventilation in a real hydropower station are predicted and analyzed by the model. The results provide the theoretical basis and design guidance for the application of tailrace tunnel ventilation system in hydropower station.

关 键 词：热湿交换 集总参数模型 尾水洞引风 水电站 

分 类 号：TU834.3[建筑科学—供热、供燃气、通风及空调工程]