摘要
根据电信机楼的空调负荷特点,在冬季和部分过渡季节,选择使用冷却塔加板式换热器的间接式免费供冷空调系统为电信机楼提供冷量。介绍了冬季机房空调送风温度和冷却塔供冷温度的确定,分析了冷却塔供冷温度对冷却塔运行消耗的影响。通过预测计算确定冷却塔免费制冷的的运行时间及节能效果。并引入了冷负荷供需指数的概念,经过现场测试计算得出江苏电信第二枢纽工程中影响该指数的三个因素,最后总结了江苏电信免费制冷技术的节能情况和应用潜力。
Based on the features of air conditioning load of telecommunications engine room, a indirect free cooling air conditioning system, which contains cooling tower and plate heat exchange, is chosen to provide cold for telecommunications engine room in winter and part of the transition seasons. Firstly the affirmance of room air-conditioning supply air temperature in winter and cooling temperature of the cooling tower are introduced. Then the influence of cooling temperature to the operating power of the cooling tower is analyzed. After that the running time and energy saving effects of cooling tower for free cooling are roughly estimated： And the concept of cooling load demand and supply index is introduced. The three factors affecting the index in the second pivot project of Jiangsu Telecom are measured. At last the free refrigeration technology and the potential energy savings of Jiangsu Telecom are summarized.
出处
《世界科技研究与发展》
CSCD
2011年第3期418-421,共4页
World Sci-Tech R&D
关键词
电信机楼
冷却塔
免费供冷
湿球温度
节能
telecommunications engine room
cooling tower
free cooling
wet bulb temperature
energy conservation
