摘要
空调环境温、湿度的变化对于板材中挥发性有机物(VOCs)的释放有着重要影响。应用用户自定义函数(UDFs)反映板材的挥发特性并与Fluent进行船舶舱室污染物的联合求解,具有一定的通用性。模拟结果表明:(1)UDFs能够准确反映板材中VOCs的挥发特性,模拟值与实验值的误差控制在10%以内;(2)温、湿度变化对于船舶舱室内的VOCs浓度具有显著影响,送风温度由15℃升高到30℃时,甲醛浓度增大至原来的2.5倍左右;送风湿度由40%上升至80%时,甲醛浓度上升了40%;(3)局部环境的差异会对污染源释放速率产生影响,应尽量将污染源布置在低温、低湿的环境中。
The changes of temperature and humidity in the air conditioning environment have an important influence on the release of volatile organic compounds(VOCs)in wood panels.In this paper,the user defined function(UDFs)is used to represent the volatility characteristics of plates and to solve them jointly with commercial software FLUENT,and the propagation of pollutants is simulated in principle,which has a certain versatility.Simulation results show that:(1)UDFs can accurately reflect the volatilization characteristics of VOCs in the plate,and the error between the simulated value and the experimental value is less than 10%;(2)The change of temperature and humidity has significant influence on VOCs concentration in ship cabin,when the air supply temperature increased from 15 to 30℃,the formaldehyde concentration increased to about 2.5 times.When the air humidity increased from 40%to 80%,indoor formaldehyde concentration increased by 40%;(3)The difference of local micro environment will lead to the change of pollution release rate.The pollution source should be arranged in the low-temperature and low humidity environment.
作者
韩星星
何勇
谢晴
谢军龙
Han Xingxing;He Yong;Xie Qing;Xie Junlong(Huazhong University of Science and Technology,Wuhan,430074)
出处
《制冷与空调（四川）》
2018年第4期440-444,共5页
Refrigeration and Air Conditioning
基金
国家自然科学基金资助项目(No.51376077)
关键词
温湿度
VOCS
舱室
UDFs
数值模拟
Temperature and humidity
VOCs
Cabin
UDFs
Numerical simulation
