Results 1 to 10 of about 32,505 (164)

Study on Thermal Degradation Characteristics and Regression Rate Measurement of Paraffin-Based Fuel

open access: yesEnergies, 2015
Paraffin fuel has been found to have a regression rate that is higher than conventional HTPB (hydroxyl-terminated polybutadiene) fuel and, thus, presents itself as an ideal energy source for a hybrid rocket engine.
Songqi Hu   +4 more
doaj   +3 more sources

Approaches to Low Fuel Regression Rate in Hybrid Rocket Engines [PDF]

open access: yesInternational Journal of Aerospace Engineering, 2012
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.
Dario Pastrone
doaj   +3 more sources

Testing and Modeling Fuel Regression Rate in a Miniature Hybrid Burner [PDF]

open access: yesInternational Journal of Aerospace Engineering, 2012
Ballistic characterization of an extended group of innovative HTPB-based solid fuel formulations for hybrid rocket propulsion was performed in a lab-scale burner. An optical time-resolved technique was used to assess the quasisteady regression history of
Luciano Fanton   +2 more
doaj   +3 more sources

Experimental Investigation of a Swirling-Oxidizer-Flow-Type Hybrid Rocket Engine Using Low-Melting-Point Thermoplastic Fuel and Oxygen

open access: yesAerospace, 2023
Hybrid rockets are safe and inexpensive; however, boundary-layer combustion poses a problem in achieving a fuel regression rate equivalent to that of solid propellants.
Tsuyoshi Oishi   +2 more
doaj   +1 more source

Effects of aluminum composites on the regression rates of solid fuels [PDF]

open access: yesProgress in Propulsion Physics – Volume 11, 2019
Innovative, mechanically activated Al–polytetrafluoroethylene (PTFE) composites and ammonium perchlorate (AP) coated nano-sized aluminum (C-ALEX) were produced, characterized, and tested as solid fuel additives. The ballistics of fuel formulations based on hydroxylterminated polybutadiene (HTPB) was investigated in a microburner by a time-resolved ...
C. Paravan   +5 more
openaire   +3 more sources

Experimental Research on Reconstruction Techniques for Instantaneous Regression Rate of Hybrid Rocket Motor with Single-Port Wagon Wheel Fuel Grain

open access: yesAerospace, 2023
This study investigated reconstruction techniques for building the instantaneous fuel regression rate of the hybrid rocket motor (HRM). Specifically, an experiment in a laboratory 500 N-class hybrid rocket motor with single-port wagon wheel fuel grain ...
Tianfang Wei   +5 more
doaj   +1 more source

Effect of Penetrative Combustion on Regression Rate of 3D Printed Hybrid Rocket Fuel

open access: yesAerospace, 2022
3D printing manufacturing is used to manufacture hybrid rocket fuel grains featuring a special grid-like structure in order to control combustion performance.
Xiaodong Yu   +4 more
doaj   +1 more source

Numerical Simulations of Flow and Fuel Regression Rate Coupling in Hybrid Rocket Motors [PDF]

open access: yesINCAS Bulletin, 2017
The hybrid propulsion offers some remarkable advantages like high safety and high specific impulse and thus it is considered a promising technology for the next generation launchers and space systems. The purpose of this work is to validate a design tool
Marius STOIA-DJESKA   +2 more
doaj   +1 more source

Dynamic Numerical Simulation of Hybrid Rocket Motor with HTPB-Based Fuel with 58% Aluminum Additives

open access: yesAerospace, 2022
The addition of aluminum (Al) to the fuel is an effective way to increase the regression rate of hybrid rocket motors (HRMs). Due to its high regression rate, the impact of the regression of combustion surface on the performance of HRMs cannot be ignored.
Hui Tian   +5 more
doaj   +1 more source

Large-Scale CAMUI Type Hybrid Rocket Motor Scaling, Modeling, and Test Results

open access: yesAerospace, 2021
An understanding of the scalability of hybrid rocket regression models is critical for the enlargement and commercialization of small-scale engines developed within universities and similar research institutions.
Tor Viscor   +4 more
doaj   +1 more source

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