3-D Flow Field Analysis and Development of Computer Aided Design Software for a Dry Wet Cooling Tower

Abstract

The paper analyse the flow field and humidity field of a three dimensional dry/wet cooling tower by using ANSYS The dry/wet cooling tower is designed to reduce plume formation by adding dry coils into a wet cooling tower In order to improve the mixture efficiency of dry air and water vapor the spoiler is added above the dry coil to generate turbulence flow A CAD software is also developed to calculate the dry/wet cooling tower design temperature and performance By doing so the engineer can easily receive the information without complex calculation while designing a dry/wet cooling tower Plume occurs at ambient temperature under 20°C in a wet cooling tower while dry/wet cooling tower can operate at ambient temperature above 5°C without plume formation As the ambient temperature decrease the exit water temperature of a cooling tower will drop as well dry/wet cooling tower has to increase 51 7% of heat transfer area to achieve same exit water temperature as a wet cooling tower The dry/wet cooling tower with spoiler reduce 17 2% of air above 90% relative humidity which can lower the plume formation effectively

Date of Award	2019
Original language	English
Supervisor	Jiin-Yuh Jang (Supervisor)