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详细介绍了实验流程及测试方法和数据处理。高湿环境条件下的实验数据显示:相同湿球温度下,较干燥的空气可以获得较高的系统能效比,冷凝器排热效率的变化则不明显;相同干球温度、风量和淋水量时,湿球温度升高,冷凝器的排热能力显著降低,排热效率则略有增加。对于特定的蒸发式冷凝器,存在最佳的迎面风速和喷淋水密度。根据实验结果拟合得到了换热管外水膜空气间的传热系数关系式。通过分析得出了不同排热量下冷凝器蒸气段、冷凝段和过冷段排热量比例和换热面积分配。
Details of the experimental process and test methods and data processing. Under the condition of high humidity, the experimental data show that the drying efficiency of the system can be improved with the same wet-bulb temperature, while the change of condenser heat-exchanging efficiency is not obvious. When the same dry-bulb temperature, Wet bulb temperature, condenser heat removal capacity was significantly reduced, the heat efficiency is slightly increased. For a particular evaporative condenser, there is an optimum head-face velocity and shower water density. According to the experimental results, the relationship between the heat transfer coefficient of the air outside the heat exchanger tube and the air is obtained. Through the analysis, it is concluded that the proportion of exhaust heat and the area of heat exchange in the condenser steam section, the condensation section and the subcooling section under different heat discharges.