디젤(CRDI)차량 프리히터 과열등에 의한 발화연구

다국어 초록 (Multilingual Abstract)

To prevent the fire due to the overheating of coolant and the insulation deterioration, pre-heater parts are installed to improve indoor heating of winter diesel vehicles. The preheater operation method is divided into two types: a heating plug type that generates heat by electric energy and a combustion type that heats with fuel combustion heat. The experiment was focused on the heating plug method that is currently widely used. As a result of analyzing national fire statistics for the past five years, it was found that 235 (54.3%) occurred in winter (November to March) out of 432 vehicle fires in SantaFe. It is judged that this is not irrelevant to the seasonal effect of the heater rod operating under the preheater cooling water temperature of 75℃ or less, and through reproducibility experiments ➀part corrosion due to cooling water oxidation, ➁coolant overheating due to ECU defect (150℃), ➂insulation of distribution lines It was concluded that it could be ignited by deterioration. In addition, the actual vehicle fire in the preheater area was conducted to describe the combustion pattern and fire detection method of the vehicle.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 1.1 연구의 배경 및 목적
• 1.2 프리히터 장착 차량의 화재발생 통계분석
• 1.3 연구과제 선택 이유
• 2. 이론적 배경
• 2.1 프리히터 부품 일반
• 2.2 냉각수(에틸렌글리콜(ethylene glycol)) 일반
• 3. 화재재현실험
• 3.1 실험장치(시료)
• 3.2 실험개요
• 4. 실험결과 및 분석
• 4.1 제1실험(온도제어(ECU) 오류에 따른 발화위험성)
• 4.2 제2실험(프리히터 전원선 절연열화에 의한 발화가능성)
• 4.3 제3실험(프리히터 발화에 따른 차량화재 감식)
• 5. 결론
• 5.1 온도제어(ECU) 오류에 따른 발화위험성
• 5.2 프리히터 전원선 절연열화에 의한 발화가능성
• 5.3 프리히터 발화에 따른 차량화재 감식요령
• 5.4 프리히터 과열등에 의한 화재 예방대책
• 참고문헌