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http://dx.doi.org/10.7731/KIFSE.2015.29.1.053

A Study on the Water Hammer Arrester Considering the Way of First Assessment Test  

Yeum, Moon-Cheon (Korea Fire Institute)
Han, Yong-Taek (Korea Fire Institute)
Publication Information
Fire Science and Engineering / v.29, no.1, 2015 , pp. 53-59 More about this Journal
Abstract
Water hammering created by an unsteady flow in pipeline systems can cause excessive change in pressure, vibration, and noise. So, water hammer analysis is very important for limiting the damage caused to pipeline, pump and valve systems by operation conditions. On the other hand, water hammer arrester has been manufactured and used in order to minimize the damage caused by water hammering phenomenon in domestic, and it has been produced and installed as the low cost-oriented because of being no separate standard in the meanwhile. Therefore, our research team investigated about the standardization of water hammer arrester performance through the various methods, such as test methods for verification of one pipe, assuming the occurrence of water hammer in a water-based fire extinguishing system, separated for opening impact pressure and shut off impact pressure and for a branch pipe in order to make guideline for water hammer arrester performance. And finally, verified the performance of the water hammer pressure as the simple mechanical way using the U-shaped pipe and a test weight, so KFI standards for the water hammer arrester could be established.
Keywords
Water hammering; Joukowsky; Standards; Pressure rise; Extinguishing system;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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