TY - JOUR 
A1 - Fernández Caballero, Miguel
AU - Hernández Jiménez, Mónica
AU - Arocas Máiquez, Iván
AU - Viedma Robles, Antonio
AU - Sánchez López, Francisco
AU - Ruiz Ramírez, Javier
AU - Lucas Miralles, Manuel
AU - Sánchez Kaiser, Antonio
T1 - Numerical optimization of a new design of cooling tower
Y1 - 2017
UR - http://hdl.handle.net/10317/8357
AB - Cooling towers are one of the most efficient components dissipating heat from power plants, water-cooled refrigeration and air conditioning systems in buildings and industrial processes. However, during the last years, various outbreaks of Legionella caused by the drift from cooling towers in urban areas occurred in southern Spain and other regions. Due to this fact, local public health authorities have introduced policies to replace the cooling towers with other less efficient systems,contributing to increase energy consumption and thusclimate change effects. In this work, the numerical optimisationand analysis of a new design of cooling tower withinverted flow are presented. The aim is to limit the drift and to reach energy efficiency similar to commercial mechanical draft cooling towers. For the optimised design, a thermos dynamical study of the tower performance under different conditions of air and water flow is carried out, assessing its drift, tower characteristics (CT) and efficiency. Particular emphasis has been placed on the numerical model of the filling and its interaction with water droplets. Numerical results show that the new design presents CT values slightly higher than commercial cooling towers for different conditions of air and water flow. No significant droplet emission has been detected in the numerical simulations
KW - Mecánica de Fluidos
KW - Cooling tower
KW - Droplet emission
KW - Legionella
KW - Porous media
KW - Computational fluid dynamics (CFD)
KW - CT (Tower Characteristic)
KW - ε (Thermal efficiency)
KW - Capture efficiency (%)
KW - DPM (Discrete Phase Model)
KW - Number of Transference Units (NTU)
KW - 3309.22 Refrigeración
LA - eng
ER -