Experimental study on heat transfer efficiency of pyrotechnics enhanced by gas generator

IF 3 3区 工程技术 Q2 CHEMISTRY, ANALYTICAL
Zhiyue Han, Yunjin Liu, Cheng Wang, Qi Jiang
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引用次数: 0

Abstract

This paper investigates the impact of the gas generator on the heat transfer of pyrotechnics. The enhancement effect is examined using a combination of experimental and engineering methods. The results demonstrate that the pyrotechnics exhibit favorable thermal performance based on performance testing. The heat transfer efficiency of the pyrotechnics can be enhanced by adjusting the structure of the gas generator, including the filter and gas outlet, as well as the shape of the pyrotechnics. However, regardless of the structure, there is a maximum peak where the gas generator achieves the highest rate of heat transfer enhancement for the pyrotechnics. Through analysis of the heat transfer experiment process, it can be concluded that the gas generator effectively reduces the heat transfer time of the pyrotechnics and minimizes heat loss during the process. Even when using coolant, the heat transfer efficiency of the pyrotechnics remains high at 69.31% after the gas generator enhancement.

Abstract Image

通过气体发生器提高烟火传热效率的实验研究
本文研究了气体发生器对烟火传热的影响。结合实验和工程方法对增强效果进行了研究。结果表明,根据性能测试,烟火表现出良好的热性能。通过调整气体发生器的结构(包括过滤器和气体出口)以及烟火的形状,可以提高烟火的传热效率。然而,无论采用哪种结构,气体发生器都有一个最大峰值,在该峰值上,烟火的传热增强率最高。通过对传热实验过程的分析,可以得出结论:气体发生器有效地缩短了烟火的传热时间,最大限度地减少了传热过程中的热量损失。即使在使用冷却剂的情况下,烟火的传热效率在气体发生器增强后仍高达 69.31%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
8.50
自引率
9.10%
发文量
577
审稿时长
3.8 months
期刊介绍: Journal of Thermal Analysis and Calorimetry is a fully peer reviewed journal publishing high quality papers covering all aspects of thermal analysis, calorimetry, and experimental thermodynamics. The journal publishes regular and special issues in twelve issues every year. The following types of papers are published: Original Research Papers, Short Communications, Reviews, Modern Instruments, Events and Book reviews. The subjects covered are: thermogravimetry, derivative thermogravimetry, differential thermal analysis, thermodilatometry, differential scanning calorimetry of all types, non-scanning calorimetry of all types, thermometry, evolved gas analysis, thermomechanical analysis, emanation thermal analysis, thermal conductivity, multiple techniques, and miscellaneous thermal methods (including the combination of the thermal method with various instrumental techniques), theory and instrumentation for thermal analysis and calorimetry.
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