座椅送风大空间湿度分布模拟  

Humidity Distribution Simulation of Chair Ventilation in Large Space

作　　者：龚光彩[1] 谢赛男[1] 吴京龙 任中俊 

机构地区：[1]湖南大学土木工程学院,湖南长沙410082 [2]中国中元国际工程设计研究院,北京100089 [3]深圳建筑科学研究院,广东深圳518000

出　　处：《湖南大学学报（自然科学版）》2008年第7期21-24,共4页Journal of Hunan University:Natural Sciences

基　　金：科技部社会公益专项基金资助项目:居住环境监测及对人体健康影响的研究(200lDIAIO00I)

摘　　要：运用CFD方法,采用人体与座椅的实体简化模型,研究了座椅送风条件下的某剧院的湿度分布特征.简化模型的人体尺寸由国家标准GB10000-88中国成年人人体尺寸数据简化而成;座椅送风口根据妥思座椅置换送风系列TCD-B/190参数简化而成.平均每个人对外界的散热量为120 W.结果表明,相对湿度与温度都存在分层梯度分布,温度随高度增加而升高,而相对湿度随温度升高而降低.这与送风口可视为一个温源,湿空气上升过程可近似视为一个等含湿量过程有关.座椅送风系统这一特性,有利于实现微气候分区控制,降低系统通风量,同时也为室内的温湿度控制提供了新的思路.The humidity environment of a typical theater was investigated through CFD method, using the simplified model of human body and chair. The size of the human body model was according to the average size of a Chinese adult with national standard GB10000 - 88 ; The size of the supply-air outlet under the chair was according to the parameters of chair displacement ventilation equipment in TROX TCD- B/190. The average heat dissipating capacity of each person was 120 W. The result showed that both relative humidity and temperature were stratified in the space, that the temperature increased with the increase of the height, but that the relative humidity decreased with the increase of the height, so, the supply-air outlet could be regarded as one humidity source, and the rising process of the wet air could also be regarded as an equal moisture content process approximately. This feature is advantageous for the realization of the control of microclimate distribution, and for the reduction of the system ventilation. At the same time, it provides a new thinking for the control of indoor temperature and humidity.

关 键 词：相对强度 CFD模拟 置换通风 大空间 

分 类 号：TU834.3[建筑科学—供热、供燃气、通风及空调工程]