摘要
室内的热舒适性直接影响着人们的健康和工作效率。针对该问题,采用计算流体力学(CFD)方法,选用零方程模型对空调系统下送上回、上送上回、上送下回三种通风方式进行模拟研究,并对温度场、PMV、PPD、空气龄的模拟结果进行分析比较。研究结果表明:和其它两种通风方式相比,上送上回通风方式室内工作区最低气温都在25℃以上,最高气温基本上在28℃以下;在工作人员呼吸平面处空气龄在700s左右,该区域的PMV和PPD分别为0.8和22%左右,可以获得较好的热舒适性。
Indoor thermal comfort can be harmful to people＇s health and can lead to depress work efficiency. To solve this problem, computational fluid dynamics （CFD） methods with zero-equation model is used. The conditioning system with different ventilation methods down-inlet and up-outlet, up-inlet and up-outlet, up-inlet and down-outlet of the temperature, mean age of air, PMV and PPD are simulated. Simulation results are analyzed and compared and the results show that： up-inlet and up-outlet is better than the other two ventilation methods, workspace minimum temperatures are above 25℃, the highest temperature substantially below 28 ℃, the air age is 700s, the PMV and PPD are 0.8 and 22 % around the region of the breathe-zone. The up-inlet and up-outlet can get a better thermal comfort.
出处
《制冷与空调（四川）》
2015年第1期16-21,共6页
Refrigeration and Air Conditioning
基金
安徽省建筑环境与设备工程特色专业建设项目(20100367)
关键词
通风方式
热舒适性
数值模拟
ventilation method
thermal comfort
numerical simulation
