Fuel Trade Study for a Nanosat Launch Vehicle Upper Stage

Delamata, Alex; Besnard, Eric; Bostwick, Christopher

doi:10.2514/6.2010-6804

Cited by 1 publication

(1 citation statement)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This solution does not completely fill all the cylindrical space around the motor. Moreover, several tanks (with corresponding fluidic) of smaller volume tend to be heavier than a single tank of the same total volume [39], see Figure 6. In this case, there is no clearance, so the stage has to fly with its own case unless it is placed inside the fairing.…”

Section: Hybrid Analysismentioning

confidence: 99%

Challenges of Ablatively Cooled Hybrid Rockets for Satellites or Upper Stages

Barato

2021

Aerospace

View full text Add to dashboard Cite

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.

show abstract

Section: Hybrid Analysismentioning

confidence: 99%

Challenges of Ablatively Cooled Hybrid Rockets for Satellites or Upper Stages

Barato

2021

Aerospace

View full text Add to dashboard Cite

show abstract

Fuel Trade Study for a Nanosat Launch Vehicle Upper Stage

Cited by 1 publication

References 5 publications

Challenges of Ablatively Cooled Hybrid Rockets for Satellites or Upper Stages

Challenges of Ablatively Cooled Hybrid Rockets for Satellites or Upper Stages

Contact Info

Product

Resources

About