风冷冷凝器和水冷冷凝器串联系统实验与模拟分析
Experiment and simulation analysis of air-cooled condenser and water-cooled condenser series systems
摘要：
风冷冷凝器的排热效果受室外干球温度的影响较大，当室外干球温度较高时，冷凝温度会变得很高，为了获得同样的制冷量，就需要增大制冷压缩机的容量，制冷系统的性能也因此受到影响。针对某信息机房的风冷式空调系统，提出在原有设备的基础上增加水冷冷凝器，将其与风冷冷凝器串联使用。通过模拟计算和实验测试对比了先风冷和先水冷两种设计方案，分析了在风冷换热面积一定的情况下如何考虑水冷换热面积的投入。结果表明，先风冷的方案优于先水冷的方案。
Abstract：
Dry blub temperature has a great impact on heat removal effect of air-cooled condenser. High dry blub temperature leads to high condensing temperature, and compressor capacity needs to be expanded to achieve the same cooling capacity, which will decrease performance of the refrigerating system. For the air-cooled air conditioning system in a communication room, proposes the scheme of adding a water-cooled condenser to the system to work together with the air-cooled condenser. Simulates, tests and compares the air-cooled first pattern with the water-cooled first pattern, and analyses the determination of suitable heat exchange area of water-cooled condenser for the given heat exchange area of the air-cooled condenser. The result shows that the air-cooled first pattern is superior to the water-cooled first pattern.
Keywords:air-cooled condenser, water-cooled condenser, series system, experiment, simulation, heat exchange area