Results 111 to 120 of about 875 (223)

Using Hydrogen Peroxide for Rocket Fuel Tank Pressurization: Innovations, Advantages, and Challenges

Challenges and Issues of Modern Science
This paper explores the innovative use of hydrogen peroxide (H₂O₂) as a pressurizing agent for rocket fuel tanks, highlighting its potential to enhance efficiency and performance in rocket propulsion systems.
Mykhailo Vorobei, Mykola Bondarenko
doaj  

Program AHRES and its Contribution to Assess Features and Current Limitations of Hybrid Rocket Propulsion [PDF]

, 2012
In the year 2011 the German Aerospace Center (DLR) has started the program AHRES (Advanced Hybrid Rocket Engine Simulation). The aim is the development of software engineering tools and CFD tools for conceptual design and optimisation of hybrid rocket ...
Hartwig, A., Bozic, O., Lancelle, D., Porrmann, D.   +3 more
core  

Creep Prediction of Fluoroplastics Based on Physics Informed Neural Networks

IEEE Access
Fluoroplastics are key sealing materials in rocket engines. They can easily fail due to creep during long-term storage, which may threaten the engines’ safety during operation.
Wuqi Gao, Yinan Ren, Zhidong Yang
doaj   +1 more source

Ethanol Based Gel Fuel for a Hybrid Rocket [PDF]

, 2012
A cost effective, renewable ethanol-based solid fuel compound, and method of making the fuel for hybrid rocket engines. Gelling agents, preferably methylcellulose can be used in conjunction with calcium acetate or calcium acetate alone make stiff plastic
Fox, Matthew, Garcia, Rodrigo, Brandenburg, John   +2 more
core   +1 more source

Experimental Rocket Propulsion Lab (ERPL) [PDF]

, 2019
Projects include: Liquids Division: Two research liquid engines one producing 500 pounds(Project Aquila) of thrust and the second producing 1500 pounds(Project Concordia) of thrust.
Rivera, Christopher M.
core  

Explainable Data Mining Framework of Identifying Root Causes of Rocket Engine Anomalies Based on Knowledge and Physics-Informed Feature Selection

Machines
Liquid rocket engines occasionally experience abnormal phenomena with unclear mechanisms, causing difficulty in design improvements. To address the above issue, a data mining method that combines ante hoc explainability, post hoc explainability, and ...
Xiaopu Zhang, Wubing Miao, Guodong Liu
doaj   +1 more source

Swirl Injection Effects on Hybrid Rocket Motors

Journal of Aerospace Technology and Management, 2015
In the last decades, hybrid rocket engines have been increasingly studied and used in space vehicles. However, the low regression rates and specific impulses still represent major drawbacks to this technology. The objective of this study was to quantify
Susane Ribeiro Gomes, Leopoldo Rocco Junior, José Atílio Fritz Fidel Rocco   +2 more
doaj  

Qualifizierung eines Hybridraketentriebwerks für eine Höhenforschungsrakete Qualification of a Hybrid Rocket Engine for a Sounding Rocket [PDF]

, 2015
This thesis is about the ’Qualification of a Hybrid Rocket Engine for a Sounding Rocket’. With a particular focus on combustion instabilities and combustion efficency. First the backround and motivation of this thesis is presented.
Hahn, M.
core  

Additive Manufacturing of High Solids Loading Hybrid Rocket Fuel Grains [PDF]

, 2018
Hybrid rocket motors offer many of the benefits of both liquid and solid rocket systems. Like liquid engines, hybrid rocket motors are able to be throttled, can be stopped and restarted, and are safer than solid rocket motors since the fuel and oxidizer ...
Johnson, Stephen P
core   +1 more source

Metal-organic frameworks as hypergolic additives for hybrid rockets. [PDF]

Chem Sci, 2022
Jobin O, Mottillo C, Titi HM, Marrett JM, Arhangelskis M, Rogers RD, Elzein B, Friščić T, Robert É.   +8 more
europepmc   +1 more source