摘要
基于传热传质理论和自然通风基本理论,应用现场测试和数值模拟的方法,研究了地表对热源厂房自然通风的影响。在稳态条件下,采用k-ε湍流模型,计算了不同工况下的厂房通风状况,结果表明,不同的地表对自然通风的影响是不同的,厂房内的地面采用吸热性能好的材料构筑,会增强地表效应;地表效应得以充分体现的最大室外风速为1.5 m/s。研究结果为进一步挖掘自然通风潜力提供了新途径。
Based on the heat and mass transfer theory and fundamental theory of natural ventilation, the impact of ground surface on natural ventilation in a heat workshop is studied with numerical simulation method by on-site testing. The plant ventilation status under different conditions is calculated with steady k-ε turbulence model. Results show that different surface has a different impact on natural ventilation. The ground surface constructed with some good heat-absorbing materials will have an enhanced surface effect. The surface effect is fully put into effect at the maximum outdoor windspeed of 1.5 m/s. The result provides a new approach for exploiting potentiality of natural ventilation.
出处
《矿冶工程》
CAS
CSCD
北大核心
2009年第2期95-98,101,共5页
Mining and Metallurgical Engineering
基金
湖南省教育厅重点项目(08A018)的资助
关键词
热车间
地表效应
自然通风
数值模拟
heat workshop
surface effect
natural ventilation
numerical simulation
