Structure modifications of crankcase explosion relief valve for cost savings in large ship engines
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초록
A crankcase explosion relief valve (ERV) is installed to prevent accidents caused by explosions inside the crankcase of marine engines. Engine manufacturers demand lower prices of parts due to declining shipbuilding and engine prices. PROSAVE de-veloped an ERV for a 30% cost saving. The developed ERV is the largest product to be installed in marine diesel engines. In this study, structural analysis was conducted on the ERV, and the radial displacement and von Mises stress were within the allowable range. An explosion test was performed according to criteria set by the International Association of Classification Societies (IACS) to evaluate the performance of the ERV. The test results show that the difference between the reference pressure and explosion pressure satisfies the IACS reference value, and the ERV was sufficiently airtight after the explosion. Flames did not spread outside during the explosion, the temperature rise in the flame arrester was acceptable, and there was no damage to the components. According to the performance test results, the ERV developed by PROSAVE satisfied the criteria required by the IACS, and the ERV showed a reliable performance at a 30% production cost saving.
Abstract
A crankcase explosion relief valve (ERV) is installed to prevent accidents caused by explosions inside the crankcase of marine engines. Engine manufacturers demand lower prices of parts due to declining shipbuilding and engine prices. PROSAVE de-veloped an ERV for a 30% cost saving. The developed ERV is the largest product to be installed in marine diesel engines. In this study, structural analysis was conducted on the ERV, and the radial displacement and von Mises stress were within the allowable range. An explosion test was performed according to criteria set by the International Association of Classification Societies (IACS) to evaluate the performance of the ERV. The test results show that the difference between the reference pressure and explosion pressure satisfies the IACS reference value, and the ERV was sufficiently airtight after the explosion. Flames did not spread outside during the explosion, the temperature rise in the flame arrester was acceptable, and there was no damage to the components. According to the performance test results, the ERV developed by PROSAVE satisfied the criteria required by the IACS, and the ERV showed a reliable performance at a 30% production cost saving.
참고문헌 (14)
- K. Cicek, "Application of failure modes and effects analysis to main engine crankcase explosion failure on-board ship", Safety Science, 51(1), pp.6~10 (2013)[DOI]
- 양호성, "Study of propane gas explosion experiment and numerical analysis of flame arrestor design for LPG ship exhaust system", 한국마린엔지니어링학회지, 44(1), pp.34~41 (2020), 한국마린엔지니어링학회[DOI]
- 김기평, "CFD Approach on Gas Explosion for SIL in Gas Fuelled Ship", 한국마린엔지니어링학회지, 39(2), pp.195~200 (2015), 한국마린엔지니어링학회[DOI]
- 강상모, "산업용 안전 릴리프밸브 유동특성에 관한 수치연구", 한국마린엔지니어링학회지, 33(5), pp.696~704 (2009), 한국마린엔지니어링학회
- L. Jiang, "Innovative design of Leeward surface of pin fin in flame arresters fitted in explosion relief valve", International Con-ference on Mechanical Design 2019, 77, pp.274~287 (2020)[DOI]
- 이효렬, "LNG 연료추진 선박용 크랭크실 릴리프 밸브 스프링의 설계 및 평가", 한국생산제조학회지, 24(3), pp.263~269 (2015), 한국생산제조학회[DOI]
- IACS, "Crankcase explosion relief valves for crankcases of internal combustion engines, UR M9, rev.3, corr.2", Interna-tional Association of Classification Societies, ~ (2007)
- IACS, "Type testing procedure for crankcase explosion relief valves, UR M66, rev.3", International Association of Classi-fication Societies, ~ (2008)
- MAN Diesel, "Crankcase relief valve prevention and damage control, SL09-512", CAA, 2009
- PROSAVE Co., LTD, "Explosion relief valve, Korea, KR Patent 10-1800799", ~ (2017)
- 김종환, "대형 선박 디젤엔진의 크랭크케이스 폭발 릴리프 밸브 성능 실험", 수산해양교육연구, 31(5), pp.1380~1386 (2019), 한국수산해양교육학회[DOI]
- L. F. Jiang, "Optimization of flame arrester structure of explosion-proof valve with flame ar-rester for diesel engine", Applied Mechanics and Materials, 511-512, pp.595~598 (2014)[DOI]
- Study on damage pre-diction in explosion accidents of chemical materials (Fo-cused on Flammable gas), "O. S. Han", Occupational Safety and Health Research Institute, 18~21 (2015)
- MAN Diesel & Turbo, "Crankcase explosion relief valve, first-time production approval, 0724839-2.6", MAN Diesel & Turbo, ~ (2015)