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| Prediction of Safe Storage Life of 2/1 Camphor Propellant Based on Heat Reduction Method |
| Received:January 04, 2024 Revised:February 17, 2024 |
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| DOI：10.7643/issn.1672-9242.2024.02.006 |
| KeyWord:2/1 camphor propellant heat reduction test semi-delay period Berthelot equation safe storage life accelerated test |
| Author | Institution |
| NIU Lei |
State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing , China |
| DONG Haiping |
State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing , China |
| YE Yaokun |
Beijing Institute of Spacecraft System Engineering, Beijing , China |
| WANG Xu |
Liaoning North Huafeng Special Chemical Co., Ltd., Liaoning Fushun , China |
| FU Dongsheng |
Liaoning North Huafeng Special Chemical Co., Ltd., Liaoning Fushun , China |
| YAN Nan |
State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing , China |
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| Abstract: |
| The work aims to establish a method based on accelerated heat reduction test to predict the safe storage life of 2/1 camphor propellant by heat reduction curve and Berthelot equation. Firstly, the accelerated heat reduction tests of 2/1 camphor propellant were carried out at 85 ℃, 95 ℃, 105 ℃ and 115 ℃ respectively, and the heat reduction data of the samples at different temperature for different acceleration time were obtained. Then, based on the heat reduction curve, the delay period of 2/1 camphor propellant at each temperature was obtained. Finally, the safe storage life prediction model of 2/1 camphor propellant was obtained by fitting the half-lag period at each temperature according to the Bethelot equation. According to its safe storage life prediction model, the safe storage life of 2/1 camphor propellant at 30 ℃ was about 50.9 years. The prediction results are close to the literature values, which verifies the effectiveness of the method proposed and the test time is reduced by nearly half compared with that in the literature. The method can provide a feasible technical way for the safe storage life prediction of 2/1 camphor propellant or other propellants. |
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