Experimental Investigation of the Potential of a New Fabric-Based Evaporative Cooling Pad

Eloy Velasco-Gómez, Ana Tejero-González, Javier Jorge-Rico and F. Javier Rey-Martínez
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Eloy Velasco-Gómez: Research Group in Thermal Engineering, Department of Energy and Fluidmechanics, School of Engineering, Universidad de Valladolid, 47011 Valladolid, Spain
Ana Tejero-González: Research Group in Thermal Engineering, Department of Energy and Fluidmechanics, School of Engineering, Universidad de Valladolid, 47011 Valladolid, Spain
Javier Jorge-Rico: Research Group in Thermal Engineering, Department of Energy and Fluidmechanics, School of Engineering, Universidad de Valladolid, 47011 Valladolid, Spain
F. Javier Rey-Martínez: Research Group in Thermal Engineering, Department of Energy and Fluidmechanics, School of Engineering, Universidad de Valladolid, 47011 Valladolid, Spain

Sustainability, 2020, vol. 12, issue 17, 1-13

Abstract: Direct evaporative coolers are energy-efficient, economic solutions to supplying cooling demand for space conditioning. Since their potential strongly depends on air hygrothermal conditions, they are traditionally used in dry and hot climates, though they can be used in many applications and climates. This work proposes a new direct evaporative cooling system with a fabric-based pad. Its design enables maximum wetted surface with minimum pressure drop. Its performance has been experimentally characterized in terms of saturation efficiency, air humidification, pressure drop, and level of particles, based on a full factorial Design of Experiments. Factors studied are air dry bulb temperature, specific humidity, and airflow. Saturation efficiencies obtained for a 25 cm pad are above the values achieved by other alternative evaporative cooling (EC) pads proposed in the literature, with lower pressure drops.

Keywords: direct evaporative cooling; new pad materials; wet fabric; saturation efficiency; pressure drop (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (6)

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