Evaluation of Paraffin–Polyethylene Blends as Novel Solid Fuel for Hybrid Rockets

2015 ◽  
Vol 31 (6) ◽  
pp. 1750-1760 ◽  
Author(s):  
Soojong Kim ◽  
Heejang Moon ◽  
Jinkon Kim ◽  
Jungtae Cho
Keyword(s):  
Solid Fuel ◽  
Polyethylene Blends ◽  
Hybrid Rockets

scholarly journals Challenges of Ablatively Cooled Hybrid Rockets for Satellites or Upper Stages

Aerospace ◽  
2021 ◽  
Vol 8 (7) ◽  
pp. 190
Author(s):  
Francesco Barato
Keyword(s):  
Combustion Chamber ◽  
Solid Fuel ◽  
Diameter Ratio ◽  
Propulsion System ◽  
Burning Time ◽  
Regression Rate ◽  
Hybrid Propulsion ◽  
Deep Impact ◽  
Time Ratio ◽  
Hybrid Rockets

Ablative-cooled hybrid rockets could potentially combine a similar versatility of a liquid propulsion system with a much simplified architecture. These characteristics make this kind of propulsion attractive, among others, for applications such as satellites and upper stages. In this paper, the use of hybrid rockets for those situations is reviewed. It is shown that, for a competitive implementation, several challenges need to be addressed, which are not the general ones often discussed in the hybrid literature. In particular, the optimal thrust to burning time ratio, which is often relatively low in liquid engines, has a deep impact on the grain geometry, that, in turn, must comply some constrains. The regression rate sometime needs to be tailored in order to avoid unreasonable grain shapes, with the consequence that the dimensional trends start to follow some sort of counter-intuitive behavior. The length to diameter ratio of the hybrid combustion chamber imposes some packaging issues in order to compact the whole propulsion system. Finally, the heat soak-back during long off phases between multiple burns could compromise the integrity of the case and of the solid fuel. Therefore, if the advantages of hybrid propulsion are to be exploited, the aspects mentioned in this paper shall be carefully considered and properly faced.

Three-Dimensionally Printed Polylactic Acid as Solid Fuel for Hydrogen Peroxide Hybrid Rockets

2021 ◽  
Vol 37 (1) ◽  
pp. 171-175
Author(s):  
Byeonguk Ahn ◽  
Jeongmoo Huh ◽  
Vikas Khandu Bhosale ◽  
Sejin Kwon
Keyword(s):  
Hydrogen Peroxide ◽  
Polylactic Acid ◽  
Solid Fuel ◽  
Hybrid Rockets

Combustion Characteristics of Paraffin-Polyethylene Blends Fuel for Solid Fuel Ramjet

2020 ◽  
Vol 33 (4) ◽  
pp. 04020043
Author(s):  
Weixuan Li ◽  
Xiong Chen ◽  
Yingli Su ◽  
Omer Musa
Keyword(s):  
Solid Fuel ◽  
Combustion Characteristics ◽  
Polyethylene Blends

scholarly journals Solid-Fuel Regression Rate Modeling for Hybrid Rockets

2013 ◽  
Vol 29 (1) ◽  
pp. 205-215 ◽  
Author(s):  
F. M. Favaró ◽  
W. A. Sirignano ◽  
M. Manzoni ◽  
L. T. DeLuca
Keyword(s):  
Solid Fuel ◽  
Regression Rate ◽  
Hybrid Rockets

scholarly journals Special Issue “Advances in Hybrid Rocket Technology and Related Analysis Methodologies”

Aerospace ◽  
2019 ◽  
Vol 6 (12) ◽  
pp. 128 ◽  
Author(s):  
Carmine Carmicino
Keyword(s):  
Combustion Chamber ◽  
Solid Fuel ◽  
Special Issue ◽  
Hybrid Rocket ◽  
Propulsion Systems ◽  
Hybrid Rockets ◽  
Chemical Propulsion ◽  
Rocket Technology

Hybrid rockets are chemical propulsion systems that, in the most common configuration, employ a liquid oxidizer (or gaseous in much rarer cases) and a solid fuel; the oxidizer, stored in tanks, is properly injected in the combustion chamber where the solid fuel grain is bonded [...]

Modeling of Solid Fuel Combustion in Furnaces with a Circulating Fluidized Bed

2008 ◽  
Vol 39 (1) ◽  
pp. 65-78
Author(s):  
Yu. S. Teplitskii ◽  
V. A. Borodulya ◽  
V. I. Kovenskii ◽  
E. P. Nogotov
Keyword(s):  
Fluidized Bed ◽  
Solid Fuel ◽  
Circulating Fluidized Bed ◽  
Fuel Combustion ◽  
Solid Fuel Combustion
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