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Energies 2018, 11(2), 442;

Thermal Assessment of a Novel Combine Evaporative Cooling Wind Catcher

School of Architecture, National Technical University of Athens, Section III, 42 Patission Av., 10682 Athens, Greece
Author to whom correspondence should be addressed.
Received: 5 January 2018 / Revised: 6 February 2018 / Accepted: 13 February 2018 / Published: 15 February 2018
(This article belongs to the Special Issue Building Energy Use: Modeling and Analysis)
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Wind catchers are one of the oldest cooling systems that are employed to provide sufficient natural ventilation in buildings. In this study, a laboratory scale wind catcher was equipped with a combined evaporative system. The designed assembly was comprised of a one-sided opening with an adjustable wetted pad unit and a wetted blades section. Theoretical analysis of the wind catcher was carried out and a set of experiments were organized to validate the results of the obtained models. The effect of wind speed, wind catcher height, and mode of the opening unit (open or closed) was investigated on temperature drop and velocity of the moving air through the wind catcher as well as provided sensible cooling load. The results showed that under windy conditions, inside air velocity was slightly higher when the pad was open. Vice versa, when the wind speed was zero, the closed pad resulted in an enhancement in air velocity inside the wind catcher. At wind catcher heights of 2.5 and 3.5 m and wind speeds of lower than 3 m/s, cooling loads have been approximately doubled by applying the closed-pad mode. View Full-Text
Keywords: wind catcher; cooling system; experimental validation; thermal modeling wind catcher; cooling system; experimental validation; thermal modeling

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Noroozi, A.; Veneris, Y.S. Thermal Assessment of a Novel Combine Evaporative Cooling Wind Catcher. Energies 2018, 11, 442.

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