Analysis on Influence Factors of Lewis Number in a Crossflow Reversibly Used Cooling Tower by Experimental Investigation

摘要

Reversibly used cooling towers (RUCT) are used to extract heat from atmospheric to water. In this study, the factors influencing the value of Lewis number in a RUCT are analyzed by experimental investigation. The results show that Lewis number increases with the increase of water-air flow rate ratio. When the water-air flow rate ratio is constant, the Lewis number decreases with the increase of inlet water temperature and inlet air wet-bulb temperature, increases with the increase of inlet air dry-bulb temperature and water sprinkle density. This research offers a fundamental basis for studying heat and mass transfer characteristics in a cross flow reversibly used cooling tower and practical application.