常规岛主厂房通风换气方案的研究  

Study of Ventilation Scheme in Main Power House for Conventional Island

作　　者：谢良珊[1] 刘刚[1] 杨其才[1] 冯震[1] 

机构地区：[1]东华大学环境科学与工程学院,上海201620

出　　处：《东华大学学报（自然科学版）》2013年第1期117-123,共7页Journal of Donghua University(Natural Science)

摘　　要：运用雷诺平均法(RANS)对典型工况下核电站常规岛主厂房内的气流组织进行数值模拟,得到了不同条件下主厂房的通风量、工作面温度以及排风温度.通过分析4种不同通风方式的通风量和室内温度分布情况,提出了一种节能的多元通风优化方案.结果表明:数值模拟与试验测量获得的温度场基本吻合;当采用自然进风与机械排风相结合的通风模式时,各层工作地带的温度能够满足室内热舒适性要求.该方法为类似工程通风换气方案的优化设计提供参考依据.The air distribution in main power house of a nuclear power station conventional island was simulated by Reynolds averaged Navier-Stokes equation （RANS） approach in typical operating condition. The ventilation flow rate, area-averaged air temperatures in working zones and the exhaust temperature were calculated in different conditions. By analyzing the ventilation flow rate and indoor air temperature distribution in four different ways of ventilation, an energy-optimized hybrid ventilation design was advised. The results indicated that the air temperatures from simulation and model experiment maintained consistency. When the natural inlet and mechanical exhaust ventilation was employed, the area-averaged air temperatures in every layer could satisfy the indoor thermal environment standards. This method presented the feasibility to be applied to similar projects＇ ventilation design programs.

关 键 词：核电站 通风换气 CFD模拟 相似模型试验 

分 类 号：TU834.53[建筑科学—供热、供燃气、通风及空调工程]