| Summary: | 碩士 === 國防大學理工學院 === 應用化學碩士班 === 98 === The military must keep a large number of propellants in view of due to war preparedness. Except the period of military maneuvers and training, these propellants are seldom used and could lead to the variation of performance under natural environment or exceed time limit of storage. This potential hazard endangers the soldiers and the inhabitants in the vicinity. A number of explosive contingencies of reserved propellants caused a lot of workers' injury or death in recent years. Thus the stability of propellant must be faced during the storage.
The goal of this research is to study the variation of thermal stability for the propellants of various storage periods in the military magazine by means of the vacuum stability test. Firstly, the propellants of various storage periods were collected and the vacuum stability test apparatus was used to measure the variation of pressure owing to the gas products of thermal decomposition of propellant on the condition of vacuum and 90 or 100℃. Then, the quantitative analysis method is applied to evaluate the decay curve of stability and lifetime of storage. These results can be regarded as the basis of ammunition storage and management.
Furthermore, the BEC software was used to simulate the explosion pressure and to evaluate the relationship of overpressure, safety quantity-distance of explosive. The research results will contribute to improve the safety management system of ammunition and prevent the explosion contingency.
The military must keep a large number of propellants in view of due to war preparedness. Except the period of military maneuvers and training, these propellants are seldom used and could lead to the variation of performance under natural environment or exceed time limit of storage. This potential hazard endangers the soldiers and the inhabitants in the vicinity. A number of explosive contingencies of reserved propellants caused a lot of workers' injury or death in recent years. Thus the stability of propellant must be faced during the storage.
The goal of this research is to study the variation of thermal stability for the propellants of various storage periods in the military magazine by means of the vacuum stability test. Firstly, the propellants of various storage periods were collected and the vacuum stability test apparatus was used to measure the variation of pressure owing to the gas products of thermal decomposition of propellant on the condition of vacuum and 90 or 100℃. Then, the quantitative analysis method is applied to evaluate the decay curve of stability and lifetime of storage. These results can be regarded as the basis of ammunition storage and management.
Furthermore, the BEC software was used to simulate the explosion pressure and to evaluate the relationship of overpressure, safety quantity-distance of explosive. The research results will contribute to improve the safety management system of ammunition and prevent the explosion contingency.
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