A Method for Determining the Constant Pressure Combustion Temperature of High Energy Solid Propellant

被引:0
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作者
Wang Y.-H. [1 ]
Liang C. [1 ]
Gu T. [1 ]
Liu J.-H. [1 ]
Li W. [2 ]
Shi Y.-T. [2 ]
机构
[1] Science and Technology on Combustion, Internal Flow and Thermal-Structure Laboratory, Northwestern Polytechnical University, Xi'an
[2] Science and Technology on Aerospace Chemical Power Laboratory, Hubei Institute of Aerospace Chemical Technology, Hubei, Xiangyang
关键词
combustion temperature; explosion heat; molar number of gas; physical chemistry; propellant combustion; solid propellant;
D O I
10.14077/j.issn.1007-7812.202212007
中图分类号
学科分类号
摘要
According to the positive correlation between propellant explosion heat and combustion temperature, a method for determining the actual constant pressure combustion temperature of high energy solid propellant was proposed. The fact that the final product of explosion heat is quasi-steady state and non-absolute steady state(minimum free energy) was expounded and clarified. According to the high temperature combustion products cooled down to 298K, the final combustion products were determined, and the theoretical constant pressure explosion heat of the propellant was calculated. The maximum explosion heat value of propellant was obtained by testing the propellant explosion heat of different sample mass and is used as the actual constant volume explosion heat of propellant. By testing the actual temperature and pressure of the final state of the constant volume explosion heat experiment, a test method of the molar number of gas in the final state of the constant volume explosion heat experiment was established, and the actual maximum constant pressure explosion heat was obtained. The results show that the actual maximum constant pressure combustion temperatures of the high energy solid propellant at 6. 86MPa, 10MPa, 15MPa and 20MPa, are 3 598.02,3 636.40,3675.54 and 3702.82K, respectively, according to the explosion heat efficiency. The maximum temperature error at 20MPa is 252. 28K, which is lower than the error of traditional temperature measurement technology. Therefore, it is reasonable to determine the actual constant pressure combustion temperature of high energy solid propellants indirectly through explosion heat. © 2023 China Ordnance Industry Corporation. All rights reserved.
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页码:840 / 846
页数:6
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