蓄冷水温及机组连接方式对水蓄冷系统能耗的影响
Influences of water temperature and connection mode of water chillers on energy consumption of chilled water storage systems
摘要：
结合工程设计案例，对水蓄冷系统在不同蓄冷水温及机组在串、并联连接方式下的能耗和运行费用进行了比较分析。结果显示，冷水机组并联蓄冷年用电量比串联方式多4.6%；冷水机组蓄冷供回水温度为6 ℃/14 ℃时，年用电量与年用电费用均低于4 ℃/14 ℃工况，年用电量少7.4%。
关键词：水蓄冷,能耗,水温,串联,并联,用电量
Abstract：
Compares and analyses with a project design example the energy consumption and operating costs of a chilled water storage system at different chilled water temperatures as well as in series or parallel connection modes of water chillers. The results show that the annual power consumption of parallel connection of water chillers is more than that of serial connection by 4.6%; when the supply/return chilled water temperature is set at 6 ℃/14 ℃, the annual power consumption and power rate are less than those in the 4 ℃/14 ℃ condition, and the annual power consumption is 7.4% less.
Keywords:chilled water storage, energy consumption, water temperature, series connection, parallel connection, power consumption