Approaches to Low Fuel Regression Rate in Hybrid Rocket Engines

Hybrid rocket engines are promising propulsion systems which present appealing features such as safety, low cost, and environmental friendliness. On the other hand, certain issues hamper the development hoped for. The present paper discusses approaches addressing improvements to one of the most impo...

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Main Author: Dario Pastrone
Format: Article
Language:English
Published: Hindawi Limited 2012-01-01
Series:International Journal of Aerospace Engineering
Online Access:http://dx.doi.org/10.1155/2012/649753
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spelling doaj-e565aaf951a34ec2bfad4cc4469c4af92020-11-24T22:33:49ZengHindawi LimitedInternational Journal of Aerospace Engineering1687-59661687-59742012-01-01201210.1155/2012/649753649753Approaches to Low Fuel Regression Rate in Hybrid Rocket EnginesDario Pastrone0Dipartimento di Ingegneria Meccanica e Aerospaziale, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, ItalyHybrid rocket engines are promising propulsion systems which present appealing features such as safety, low cost, and environmental friendliness. On the other hand, certain issues hamper the development hoped for. The present paper discusses approaches addressing improvements to one of the most important among these issues: low fuel regression rate. To highlight the consequence of such an issue and to better understand the concepts proposed, fundamentals are summarized. Two approaches are presented (multiport grain and high mixture ratio) which aim at reducing negative effects without enhancing regression rate. Furthermore, fuel material changes and nonconventional geometries of grain and/or injector are presented as methods to increase fuel regression rate. Although most of these approaches are still at the laboratory or concept scale, many of them are promising.http://dx.doi.org/10.1155/2012/649753
collection DOAJ
language English
format Article
sources DOAJ
author Dario Pastrone
spellingShingle Dario Pastrone
Approaches to Low Fuel Regression Rate in Hybrid Rocket Engines
International Journal of Aerospace Engineering
author_facet Dario Pastrone
author_sort Dario Pastrone
title Approaches to Low Fuel Regression Rate in Hybrid Rocket Engines
title_short Approaches to Low Fuel Regression Rate in Hybrid Rocket Engines
title_full Approaches to Low Fuel Regression Rate in Hybrid Rocket Engines
title_fullStr Approaches to Low Fuel Regression Rate in Hybrid Rocket Engines
title_full_unstemmed Approaches to Low Fuel Regression Rate in Hybrid Rocket Engines
title_sort approaches to low fuel regression rate in hybrid rocket engines
publisher Hindawi Limited
series International Journal of Aerospace Engineering
issn 1687-5966
1687-5974
publishDate 2012-01-01
description Hybrid rocket engines are promising propulsion systems which present appealing features such as safety, low cost, and environmental friendliness. On the other hand, certain issues hamper the development hoped for. The present paper discusses approaches addressing improvements to one of the most important among these issues: low fuel regression rate. To highlight the consequence of such an issue and to better understand the concepts proposed, fundamentals are summarized. Two approaches are presented (multiport grain and high mixture ratio) which aim at reducing negative effects without enhancing regression rate. Furthermore, fuel material changes and nonconventional geometries of grain and/or injector are presented as methods to increase fuel regression rate. Although most of these approaches are still at the laboratory or concept scale, many of them are promising.
url http://dx.doi.org/10.1155/2012/649753
work_keys_str_mv AT dariopastrone approachestolowfuelregressionrateinhybridrocketengines
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