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Influence of Water and Air Flow on the Performance of Cellulose Evaporative Cooling Pads Used in Mediterranean Greenhouses

 

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Opened Access Influence of Water and Air Flow on the Performance of Cellulose Evaporative Cooling Pads Used in Mediterranean Greenhouses
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Author: Valera Artínez, Diego Luis
Madueño Luna, Antonio
Peña, Araceli
Franco Salas, Antonio
Department: Universidad de Sevilla. Departamento de Ingeniería Aeroespacial y Mecánica de Fluidos
Date: 2010
Published in: Transactions of the ASAE, 2010 (53) (2010 (2)), 565 p.-576 p..
Document type: Article
Abstract: Evaporative cooling systems are a widely used technique in Mediterranean greenhouses. In this study, the cellulose evaporative cooling pads most commonly used in this region were tested in the laboratory using a new methodology in a wind tunnel to determine the water flow on the pad and air flow through it, as well as the water consumption and pressure drop caused by each pad as a function of air speed. Greater water flow increased the pressure drop, but the main effect on performance was caused by modifying the air flow through the pad. We recommend a range of air speeds through the pad of 1 to 1.5 m s‐1, at which the pressure drop was between 3.9 and 11.25 Pa, depending on the type of pad and the water flow applied. On the other hand, saturation efficiency ranged between 64% and 70%, while the amount of evaporated water varied between 1.8 and 2.62 kg h‐1 K‐1 per square meter of pad area.
Cite: Valera Artínez, D.L., Madueño Luna, A., Peña, A. y Franco Salas, A. (2010). Influence of Water and Air Flow on the Performance of Cellulose Evaporative Cooling Pads Used in Mediterranean Greenhouses. Transactions of the ASAE, 2010 (53) (2010 (2)), 565 p.-576 p..
Size: 658.6Kb
Format: PDF

URI: https://hdl.handle.net/11441/86705

DOI: 10.13031/2013.29571

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