The variable water temperature control system that based on PID controller was studied to deal with dynamic space load and refrigerating capacity of SAAC.
通过对建筑物动态负荷与小型吸收式制冷机制冷量之间关系的研究，开发了基于PID控制器的小型吸收式制冷机变水温控制系统。
The variable water volume of the chilled-water and cooling water system make refrigerating machine saving more energy under part -load condition.
空调制冷系统的冷冻水、冷却水变流量系统可使冷水机组在部分负荷下运行带来显著的节能效果。
After comparison and analysis of various kinds refrigerating systems, the technical scheme of refrigerating system of refrigerated railway car with the 23 t axle-load are put forward.
本文在对各种制冷系统分析比较后，提出23吨轴重铁路冷藏车制冷系统的技术方案。
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