基于气流组织CFD优化的某报社印刷车间空调系统设计
Air conditioning system design and the air distribution optimization with CFD for a newspaper printing shop
摘要：
介绍了某报社印刷车间现有空调系统存在的问题，分析了印刷车间可能采用的4种气流组织方式的优缺点，得出异侧分层送风方式优于其他方式。在设计送风口时，结合印刷机本身的高度和印刷报纸对风速限制的要求，上层在8.0 m设计双层百叶风口，保证对印刷机上部的冷却；下层4.5 m处设计45°旋流风口送风。运用CFD技术研究了送风速度、风口高度及送风角度变化对车间温度场和速度场的影响，结果表明，百叶风口风速5 m/s，向下倾斜0°，旋流风口风速4 m/s，向下倾斜45°，下层回风口分别距地距地面0 m和1 m是最适合该印刷车间的送风方案。
Abstract：
Presents the existing problems of the system, and analyses the advantages and disadvantages of the four types of air distribution. The results show that the opposite-side-supply stratified air conditioning system is superior to other systems. The air outlets being designed with the consideration of the height of the printing machine and the air velocity limit, the double registers are installed at the height of 8.0 m for cooling the space over the printing machine and twist outlets are installed at 4.5 m at an angle of 45°. Investigates the influences of air velocity, outlet installation height and supply angles using CFD technology, from the available data, concluding that the air distribution is the most desirable when the air velocity of registers is 4.5 m/s, at a 0° angle and the air velocity of twist outlets is 4.5 m/s, at a 45° angle, while the return air inlets are installed at 0 m and 1 m above the ground.
Keywords:largespace,airdistribution,airconditioningsystem,airoutlet,returnairinlet