CNG버스 연료용기 누출원인 분석에 관한 연구

Natural gas suppliers, natural gas vehicle operators, CNG bus manufacturing companies, and various government agencies are concerned about safety operation of CNG vehicles, in particular with regard to the potential risk to cause leakage to surfaces of CNG cylinders. Therefore, the purpose of this study was to identify defect present in the accident cylinder and to analyze the cylinder materials for conformance with appropriate specifications. Nondestructive inspections of the accident cylinder were performed to locate flaws on metal surfaces, and metallurgical examinations of selected portions of metal surfaces were conducted to determine the nature and extent of crack growth.