Determining the optimal number of collector layers in fog water harvesting system

Document Type : Research Article

Authors

1 Water Engineering Department , University of Mohaghegh Ardabili, Ardabil, Iran

2 Water Engineering Department, University of Mohaghegh Ardabili, Ardabil, Iran

Abstract

The low efficiency of water harvesting in conventional collectors has limited the development of its use in fog-prone areas. One of the ways to improve efficiency is to increase the number of layers in different collectors. For this purpose, the effect of the number of layers on the efficiency of conventional collectors was investigated based on theoretical relations and also by conducting experimental tests. In the laboratory section, after the installation and commissioning of the fog water harvesting system, the output flow from the humidifier hit the collecting plate and after the fog extraction, a percentage of it was transferred to the storage tank in the form of water droplets. By measuring the amount of collected water, the efficiency of collectors with 4 layers was estimated and compared. The results showed that with the increase in the number of layers, the theoretical efficiency of Raschel mesh first increases and then decreases, but in aluminum mesh, the increase in efficiency continues with the increase in the number of layers. The highest theoretical efficiency of Raschel mesh and aluminum mesh can be achieved in the case of 4 and 7 layers, respectively. According to the results of the experimental test, the highest water collection efficiency of Raschel and aluminum mesh was obtained in 5 and 6 layers, respectively.

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Amirkabir Journal of Mechanical Engineering
Volume 55, Issue 11
February 2024
Pages 3-3

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