{"title":"Experimental study on heat transfer efficiency of pyrotechnics enhanced by gas generator","authors":"Zhiyue Han, Yunjin Liu, Cheng Wang, Qi Jiang","doi":"10.1007/s10973-024-13470-4","DOIUrl":null,"url":null,"abstract":"<p>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.</p>","PeriodicalId":678,"journal":{"name":"Journal of Thermal Analysis and Calorimetry","volume":null,"pages":null},"PeriodicalIF":3.0000,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Thermal Analysis and Calorimetry","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1007/s10973-024-13470-4","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, ANALYTICAL","Score":null,"Total":0}
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.
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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