摘要
以某工业车间为研究对象,利用Airpak软件模拟了车间原置换通风方式下的流场分布,发现在原气流组织方式设计负荷下虽然可保证室内热舒适,但送风负荷偏大,导致夏季温度偏低,冬季温度偏高;并且工作区的气流风速偏高,吹风感较严重。对原气流组织方式进行了改进及优化,改进后的气流组织方式减小了非工作区的冷负荷,增大了工作区的送风冷负荷,降低了车间的总冷负荷,并对改进后的方式进行了数值模拟。结果表明:在改进后的气流组织方式下,车间工作区的温度冬季、夏季均达到舒适性要求,且整体送风冷负荷降低了28%,送风热负荷降低了33%,改善了热舒适,实现了节能。
Take a industrial plant as the object,the original ventilation method(displacement ventilation)was simulated using Airpak,and the result found that the original design can basically meet the requirements,but the supply load was large,leading to low summer temperature and high winter temperature,and the air velocity under the fan coil was high,the draft sensation of human was serious.In this paper,the air supply system was improved by reducing the overall air supply load and increasing the load of workspace,and the airflow organization of improved scheme was simulated.The results indicated that in the improved airflow,the temperature of workspace could meet the requirements both in winter and summer,and the whole load in summer was reduced by 28%,the heat supply load was reduced by 33%,which improved the thermal comfort and realized energy saving.
作者
王丽莎
魏兵
林杉
WANG Li-sha;WEI Bing;LIN Shan
出处
《节能》
2018年第2期81-85,共5页
Energy Conservation
关键词
高大空间
气流组织方式
置换通风
数值模拟
改进
tall space
airflow organization
displacement ventilation
numerical simulation
improvement
