共查询到19条相似文献,搜索用时 281 毫秒
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结合工作实践经验,就IDC机房空调系统的优化配置方法进行了简要阐述,并结合工程实例,深入分析了IDC机房空调的节能技术,旨在实现现代数据中心机房空调系统的节能减排目标。 相似文献
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蒸发冷却与冷却吊顶相结合的半集中式空调系统的探讨 总被引:11,自引:0,他引:11
提出了一种新的半集中式蒸发冷却空调系统方案,即将蒸发冷却技术与冷却吊顶相结合。蒸发冷却空调机组承担室内的新风潜热负荷;冷却吊顶承担室内显热负荷,而且冷却吊顶盘管中所需要的冷水采用新疆地区当地的天然地下水、自来水或冷却塔产生的冷却水(水温16~18℃)。冷却吊顶在夏季用作冷辐射(通16~18℃的冷水),冬季用作热辐射(通60℃左右的热水),从而使蒸发冷却空调系统达到节能,减少送风管道尺寸且满足全年运行的需要。 相似文献
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以江苏省某数据中心机房为研究对象,简要介绍了该中心机房空调系统空调方式、气流组织、新风系统、消防排烟系统、高密度制冷方案的的设计。通过CFD软件模拟分析数据中心主机房的气流组织情况,针对主机房出现的局部热点、气流组织不畅等问题,提出气流优化方案,模拟仿真结果验证了气流组织优化设计的有效性。 相似文献
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An experimental study on the performance comparison of microchannel evaporators with refrigerant R-22 was conducted. Six microchannel
evaporators were designed and manufactured for a residential air-conditioner. They were tested with psychrometric calorimeter
test facilities. The experiment was performed with both vapor compression system and refrigerant circulation system. Each
evaporator was made up of two parallel flow heat exchangers connected with several return pipes. The parallel flow heat exchanger
had 41 microchannel tubes inserted between inlet and outlet headers. The microchannel tube had 8 rectangular ports with the
hydraulic diameter of 1.3 mm. For the vapor compression system, the flow area ratio and the number of return pipes had a great
effect on the cooling capacity. Type 3 with a flow area ratio of 73% and 58% showed the best cooling capacity. It had 12 return
pipes and 3 circuits. There is a merging manifold in it. The effect of the number of circuits and merging manifold on the
cooling capacity was relatively small. For the refrigerant circulation system, the effect of the mass flow rate on the cooling
capacity was slightly superior to that of inlet quality. The effect of the number of circuits on the cooling capacity was
different from the result of the vapor compression system. The effect of merging manifold was negligible, which was consistent
with the result of the vapor compression system. The cooling capacity proportionally increased as the vertical inclination
angle of the evaporator increased due to gravity force. 相似文献
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Shili Shu Guanyu Hou Lijie Wang Sicong Tian Leonid L. Vassiliev Cunzhu Tong 《Journal of Mechanical Science and Technology》2017,31(6):2607-2612
This study focuses on the application of heat pipes in thermal management for high-power semiconductor lasers. The heat pipe cooling systems are used for heat dissipation in high-power semiconductor lasers. These systems are used instead of water cooling machines to realize a compact and lightweight laser module. The n-shaped heat pipe cooling system, which consists of eight 6 mm copper heat pipes with sintered powder wicks, can easily handle a heat load of up to 73 W from a single-laser unit. The fabricated U-shaped heat pipe cooling system, which consists of ten 12 mm copper heat pipes with sintered powder wicks, can easily handle a heat load of up to 300 W from five laser units. The optical power of the multi-laser module cooled by the U-shaped heat pipe cooling system reaches 210 W. These results indicate that high-power semiconductor lasers can be cooled using heat pipe cooling systems instead of water cooling machines. 相似文献
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根据天津地区的气象特点,该地区不适宜单独使用直接蒸发冷却空调,因此选用了间接蒸发冷却能量回收新风预冷系统。通过试验研究室内排风对新风的预冷过程,分析了干、湿工况下典型日的运行效果和能效,结果表明:在干工况运行状态下,系统显热节能量较大,没有潜热节能量,COP范围6.47~14.07,能够承担63.28%~144.54%新风冷负荷;湿工况下,发生潜热换热,显著提高总节能量,COP处于13.99~18.11之间,能效较高,新风预冷量占新风冷负荷之比处于44.54%~49.42%。 相似文献