Results 151 to 160 of about 362 (192)

Restart transients of hybrid rocket engines.

Journal of Spacecraft and Rockets, 1973
Experimental investigation of the problems associated with restarting hybrid rocket motors (i.e., motors wherein a liquid or gaseous oxidizer is injected into the port of a solid fuel grain with subsequent mixing and combustion of the oxidizer and fuel) following a brief period of extinguishment. The results include the finding that the ignition delay
M. A. SARANIERO, L. H. CAVENY, M. SUMMERFIELD   +2 more
openaire   +1 more source

Hybrid Rocket Engines Design for Materials Characterization

2023
Hybrid Rocket Engines (HREs) have generated positive interest in the scientific community due to their ability to combine the special characteristics pertaining to solid and liquid propulsion I [ 1]. Eligible as promising technology enablers for the future of space industry, HREs are valuable for their safe and controlled design nature, simplified ...
Mangioni G., Marocco R., Crispino G. M., Bianchi D., Mungiguerra S., Savino R.   +5 more
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Hybrid Gas Generator for a Staged Hybrid Rocket Engine

Journal of Propulsion and Power, 2017
The two-stage combustion hybrid rocket engine with a hybrid gas generator method offers numerous advantages over a solid-propellant gas generator and classical hybrid rocket engines. These advantages include a higher specific impulse in operation, lower lifecycle costs, and lower sensitivity to combustion pressure.
Dongeun Lee, Changjin Lee
openaire   +1 more source

Hybrid Rocket Engines

2012
The hybrid rocket engine utilizes a combination of solid rocket and liquid rocket technology to meet some flight mission applications. In terms of performance, cost, availability of materials and safety, the hybrid approach does potentially have some advantages.
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Optimal battery selection for hybrid rocket engine

AIP Conference Proceedings, 2022
In the present paper, the optimal selection of batteries for an electric pump -fed hybrid rocket engine is analyzed. A two -stage Mars Ascent Vehicle, suitable for the Mars Sample Return Mission, is considered as test case. A single engine is employed in the second stage, whereas the first stage uses a cluster of two engines.
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Evaluation of Paraffin-based Fuels for Hybrid Rocket Engines

50th AIAA/ASME/SAE/ASEE Joint Propulsion Conference, 2014
This paper summarizes the investigations on the combustion behavior of paraffin-based hybrid rocket fuels with gaseous oxygen (GOX) as oxidizer. Combined experimental activities have been done at the DLR Institute of Space Propulsion in Lampoldshausen and at the Space Propulsion Laboratory (SPLab) of Politecnico di Milano.
Kobald, Mario, Schmierer, C., Ciezki, Helmut, Schlechtriem, S., Toson, E., De Luca, T.   +5 more
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Hybrid rocket engine

2019
Предлагается новый гибридный (комбинированный) ракетный двигатель, на который получен патент Украины («Спосіб комбінування реактивного і прямоточного повітряно-реактивного двигунів». 25.08.2015 ¹100987). Обсуждаются некоторые аспекты его конструкции и работы в сравнении с аналогами.
Semenov, К, Kopiyka, A
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Secondary combustion in a staged hybrid rocket engine

Journal of Mechanical Science and Technology, 2017
The staged Hybrid rocket engine (HRE) is a relatively new concept that minimizes a loss of combustion performance with an oxidizer to fuel ratio shifting, while maintaining the key advantages of HREs. Knowing that a key component of the staged HRE is the secondary combustion, in this study a reacting flow Computational fluid dynamics (CFD) based tool ...
Dongeun Lee, Changjin Lee
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The Stepped Helix Hybrid Rocket Engine

AIAA AVIATION 2023 Forum, 2023
Christopher Glaser, Jouke Hijlkema, Jean-Yves Lestrade, Jerome Anthoine   +3 more
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Hybrid rocket engine, theoretical model and experiment

Acta Astronautica, 2011
Abstract The purpose of this paper is to build a theoretical model for the hybrid rocket engine/motor and to validate it using experimental results. The work approaches the main problems of the hybrid motor: the scalability, the stability/controllability of the operating parameters and the increasing of the solid fuel regression rate.
Teodor-Viorel Chelaru, Florin Mingireanu
openaire   +1 more source