Scholarly record
DESIGN OF AN EXPERIMENTAL SYSTEM FOR THE ANALYSIS OF WATER CURTAIN EFFECTS IN HYDROGEN EXPLOSIONS
Abstract
This paper presents the design and numerical analysis of an experimental system intended to study the effects of water curtains on the propagation of hydrogen explosions. The developed virtual model reproduces a test stand consisting of three successive chambers separated by two water-filled barriers acting as water curtain obstacles. The atmosphere in the chambers is composed of an explosive hydrogen–air mixture with a hydrogen concentration of 25%. The explosion is initiated in the first chamber, and the propagation of the flame front, the evolution of pressure waves, and their interaction with the liquid obstacles are analyzed. The study also investigates the continuation of the explosion in the subsequent chambers, as well as the release of explosion overpressures through a vent opening located at the end of the test stand. During the numerical simulations, explosion overpressures are recorded and the interaction between the flame front, pressure waves, and the water curtains is visually analyzed, including the process of water expulsion from the barriers. The obtained results support the design and construction of a real experimental test stand by enabling the estimation of maximum loads acting on the installation walls and the evaluation of the effectiveness of water curtains in mitigating the effects of hydrogen explosions.
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