Parametric Analysis of a Mechanical Draft Cooling Tower using Two Mathematical Models

In the present work, a Matlab® computer code for cooling tower simulation was developed to perform a parametric analysis that determines the effect of the column cross-sectional area on multiple operating variables such as air humidity, air and water outlet temperature, among others. The computer co...

Full description

Autores:
Obregon-Quiñones, Luis Guillermo
Tipo de recurso:
Fecha de publicación:
2021
Institución:
Universidad del Atlántico
Repositorio:
Repositorio Uniatlantico
Idioma:
eng
OAI Identifier:
oai:repositorio.uniatlantico.edu.co:20.500.12834/824
Acceso en línea:
https://hdl.handle.net/20.500.12834/824
Palabra clave:
Cooling tower, Cross-sectional area, Energy, Mass Transfer Coefficient, Mathematical model
Rights
openAccess
License
http://creativecommons.org/licenses/by-nc/4.0/
Description
Summary:In the present work, a Matlab® computer code for cooling tower simulation was developed to perform a parametric analysis that determines the effect of the column cross-sectional area on multiple operating variables such as air humidity, air and water outlet temperature, among others. The computer code uses the Merkel's model and the CDAWC (Continuous Differential Air-Water Contactor) model for later comparison. It was observed a decrease in the outlet water temperature by approximately 14% when the tower's cross-sectional area increased from 1 to 2 m2. It increases the air outlet temperature by about 17% due to increased air-water contact. A negative convective heat transfer in the air was obtained in the cooling tower´s bottom due to the large amount of energy required for the heat transfer by vaporization, which was much larger than the convective heat. The evaporative heat transfer is over 80% of the total heat transferred.