Abstract The following paper presents the first numerical comparison of heat and mass transfer processes in a traditional cooling tower and a solution based on the Maisotsenko cycle (M-Cycle). The results of the simulation allowed us to analyze the heat and mass transfer process occurring inside the M-Cycle and the traditional cooling tower and to observe its most important characteristics and features. The analysis was performed for two hypothetical situations: 1) both towers having the same external dimensions: the Number of heat Transfer Units (NTU) of M-Cycle cooling tower was two times smaller, due to its geometry; 2) two towers have the same mass transfer surface (i.e. identical NTU in wet channels). It was confirmed that M-Cycle Cooling Tower (MCT) can cool the water below the wet-bulb temperature (which is not achievable by conventional cooling towers), even in very hot and humid conditions (outdoor air temperature of 40 °C and humidity ratio of 20 g/kg). Also, the influence of the selected parameters (including inlet air temperature and humidity, inlet water temperature, NTU, and heat capacity ratio between water and air) on cooling tower performance are documented. Critical factors which have the highest impact on its effectiveness are established and discussed. The study confirmed high practical potential of using M-Cycle in water cooling applications.

中文翻译：

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传统冷却塔与M-Cycle冷却塔对比分析

摘要 以下论文首次对传统冷却塔中的传热传质过程进行了数值比较，并提出了基于 Maisotsenko 循环 (M-Cycle) 的解决方案。模拟结果使我们能够分析 M-Cycle 和传统冷却塔内部发生的传热和传质过程，并观察其最重要的特性和特点。对两种假设情况进行了分析：1) 两个塔具有相同的外部尺寸：由于其几何形状，M-Cycle 冷却塔的传热单元 (NTU) 数量小了两倍；2) 两个塔具有相同的传质表面（即湿通道中相同的 NTU）。经证实，即使在非常炎热和潮湿的条件下（室外空气温度为 40°C 和湿度20 g/kg 的比例）。此外，还记录了所选参数（包括入口空气温度和湿度、入口水温、NTU 和水与空气之间的热容量比）对冷却塔性能的影响。建立并讨论了对其有效性影响最大的关键因素。该研究证实了在水冷应用中使用 M-Cycle 的巨大实用潜力。记录了所选参数（包括入口空气温度和湿度、入口水温、NTU 和水与空气之间的热容量比）对冷却塔性能的影响。建立并讨论了对其有效性影响最大的关键因素。该研究证实了在水冷应用中使用 M-Cycle 的巨大实用潜力。记录了所选参数（包括入口空气温度和湿度、入口水温、NTU 和水与空气之间的热容量比）对冷却塔性能的影响。建立并讨论了对其有效性影响最大的关键因素。该研究证实了在水冷应用中使用 M-Cycle 的巨大实用潜力。