程控机房冷却塔间接供冷系统应用
Application of indirect tower cooling to telecommunication machine rooms
摘要：
针对程控机房需要全年供冷和以显热负荷为主的特点，采用开式冷却塔＋板式换热器＋空气冷却器等设备设计了冷却塔间接供冷系统。给出了系统主要设备及其参数的确定方法。以哈尔滨市某机房为例，通过DeST软件模拟其全年冷负荷，比较了改造前后的节能量，结果显示，该系统与原机房专用空调相比，每年可节能40%，投资回收期为1.16年。分析了冷却塔间接供冷系统在全国31个城市推广应用的节能潜力，对部分城市可节能15%~40%。
Abstract：
Considering that a telecommunication machine room needs cooling all the year round and the major load is sensible heat, designs an indirect tower cooling system combined the cooling tower, plate heat exchanger and air cooler. Presents the main equipments and the determination of their parameters. Taking a machine room in Harbin as an example, calculates the annual cooling load by DeST software, and compares the energy consumption before and after retrofit. As a result, the annual energy saving potential is 40% compared with the original system and the investment payback period is 1.16 years for the indirect tower cooling system. Analyses the energy saving potential of indirect tower cooling system in 31 cities across China, and concludes that the system can save energy 15% to 40% for most cities.
Keywords:telecommunicationmachineroom,indirectcooling,plateheatexchanger,energysavinganalysis