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http://dx.doi.org/10.3741/JKWRA.2021.54.12.1215

A study on the use of fire hydrants as a heat wave reduction facility through hydraulic analysis of water supply network  

Hong, Sung Jin (Department of Civil Engineering, The University of Suwon)
Choi, Doo Yong (K-water Institute, Korea Water Resources Corporation)
Yoo, Do Guen (Institute River Environmental Technology, Department of Civil Engineering, The University of Suwon)
Publication Information
Journal of Korea Water Resources Association / v.54, no.12, 2021 , pp. 1215-1222 More about this Journal
Abstract
In this study, a study on how to use a fire hydrant as a heat wave reduction facility through hydraulic analysis of the water supply pipe network was conducted. Assuming that the fire hydrant installation point is open for heat wave reduction, the water pressure at each point was derived. And the reduction rate of the temperature according to the hydrant watering was compared with the watering area according to the operation of the watering truck. The watering area according to the opening of the fire hydrant was calculated by deriving the pressure value at the node where the fire hydrant was installed through hydraulic analysis of the water pipe network, and then using the watering radius relational expression according to the pressure value. As a result of applying the proposed methodology to two real city areas, the temperature reduction effect of the watering method by a fire hydrant can be derived lower than the watering method by a watering truck according to the difference in the absolute watering area. However, unlike a watering truck, a fire hydrant does not have a relative restriction on the amount of water supply and is expected to allows continuous divided spraying of the same area.
Keywords
Heat wave; Fire hydrant; Watering area; Watering truck; Water supply network; Hydraulic analysis;
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