{"title":"Effect of particle size on gasification of solid fuel in a low-temperature gas generator","authors":"M.V. Salganskaya, A. Yu Zaichenko, D.N. Podlesniy, M.V. Tsvetkov, Yu Yu Tsvetkova, E.A. Salgansky","doi":"10.1016/j.actaastro.2024.11.016","DOIUrl":null,"url":null,"abstract":"<div><div>The work is devoted to the study of gasification of porous material under the conditions of a gas generator of a propulsion system. A low-temperature gas generator for producing combustible gases can be included in a solid fuel engine. The effect of urotropine particle size on the characteristics of its gasification under the conditions of a low-temperature gas generator was experimentally studied. For this purpose, urotropine particles of various fractions were used: 2–3, 3–5, 5–7 and 7–10 mm. It is shown that there is a particle size value above which the gasification characteristics are practically independent of this parameter. The effect of particle size on gasification characteristics only appears for particle size values below a certain size. This is explained by a decrease in the permeability of the porous bed as the particle size decreases.</div></div>","PeriodicalId":44971,"journal":{"name":"Acta Astronautica","volume":"226 ","pages":"Pages 648-652"},"PeriodicalIF":3.1000,"publicationDate":"2024-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta Astronautica","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0094576524006635","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, AEROSPACE","Score":null,"Total":0}
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Abstract
The work is devoted to the study of gasification of porous material under the conditions of a gas generator of a propulsion system. A low-temperature gas generator for producing combustible gases can be included in a solid fuel engine. The effect of urotropine particle size on the characteristics of its gasification under the conditions of a low-temperature gas generator was experimentally studied. For this purpose, urotropine particles of various fractions were used: 2–3, 3–5, 5–7 and 7–10 mm. It is shown that there is a particle size value above which the gasification characteristics are practically independent of this parameter. The effect of particle size on gasification characteristics only appears for particle size values below a certain size. This is explained by a decrease in the permeability of the porous bed as the particle size decreases.
期刊介绍：
Acta Astronautica is sponsored by the International Academy of Astronautics. Content is based on original contributions in all fields of basic, engineering, life and social space sciences and of space technology related to:
The peaceful scientific exploration of space,
Its exploitation for human welfare and progress,
Conception, design, development and operation of space-borne and Earth-based systems,
In addition to regular issues, the journal publishes selected proceedings of the annual International Astronautical Congress (IAC), transactions of the IAA and special issues on topics of current interest, such as microgravity, space station technology, geostationary orbits, and space economics. Other subject areas include satellite technology, space transportation and communications, space energy, power and propulsion, astrodynamics, extraterrestrial intelligence and Earth observations.
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