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http://dx.doi.org/10.20910/JASE.2020.14.5.66

Study on the cooling water supply method to the cooling water injection nozzle in the steam generator  

Oh, Jeong-hwa (Department of Aerospace Engineering, Chungnam National University)
Shin, Min-kyu (Department of Aerospace Engineering, Chungnam National University)
Cho, Young-seok (Department of Aerospace Engineering, Chungnam National University)
Ko, Young-sung (Department of Aerospace Engineering, Chungnam National University)
Publication Information
Journal of Aerospace System Engineering / v.14, no.5, 2020 , pp. 66-72 More about this Journal
Abstract
In this study, a method for increasing the initial water supply was employed to protect the water injection nozzle by the flame when supplying the water to the steam generator. During the initial steam generator test, the flow rate was controlled by using the only venturi, but cooling water was not supplied to the combustion chamber at the beginning of combustion, thereby resulting in damage to the water nozzle. To solve this problem, a venturi and an orifice were configured in parallel to increase the initial supply flow rate to form a differential pressure between the water manifold and the combustion chamber. Venturi and orifice supply sequences were established through the water flow tests, and combustion tests were conducted for final verification. Consequently, a continuous supply of the cooling water at the beginning of combustion was achieved, and the experiment was successfully performed without damaging the cooling water nozzle.
Keywords
Cavitation Venturi; Orifice; Liquid Rocket Engine; Steam Generator;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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