Analysis of Cross Flow Cooling Tower Based On RCD

Abstract

This report is focused on analysis of cooling tower that is based on Rotating Contacting Disk (RCD) developed by Heat Pump Laboratory at IIT Bombay, HPL_IITB. This new design is analysed because in conventional towers there are many issues such as excessive drift loss which causes health hazard, power consumption for driving the fan. The Rotating Contacting Disk is one of the patented design developed by Heat Pump Laboratory at IIT Bombay, HPL_IITB. RCD is a circular disk with meshed/perforated surface to enhance the surface area of water. In cooling tower fan is not used for the air flow. In new design Rotating Contacting Disk based rotors will be used as fills. The height of tower is 1.2 m and in a single rotor 112 RCD are used. There are 6 such rotors in setup. Diameter of RCD used in this setup is 300 mm. The method followed for analysis is adopted from ASHRAE handbook. Here effects of water temperature at inlet to air enthalpy at outlet is studied. Effects of wet bulb temperature of atmospheric air on cooled water is also analysed.