Results 71 to 80 of about 25,209 (263)

Energetic Compositions Application for the Reduction of the Environmental Pollution Because of Space Vehicle Launches

open access: yesEurasian Chemico-Technological Journal, 2017
Technogeneous impact of rocket and space activities on the environment is one of the most actual problems of practical cosmonautics. This technogeneous impact is not only the pollution of near Earth space with space debris (worked-off stages of space ...
V. Trushlyakov   +2 more
doaj   +1 more source

Mathematical model for heat transfer in variable thickness fins for rocket engines

open access: yesChallenges and Issues of Modern Science
Purpose. This article aims to develop a mathematical model for a fin in the cooling system of liquid propellant rocket engines. The objective is to enable calculations for fins with arbitrary thickness variation. The developed mathematical model will be
Volodymyr Sliusariev, Valerii Bucharskyi
doaj  

ADN – The new oxidizer around the corner for an environmentally friendly smokeless propellant [PDF]

open access: yesJournal of Aerospace Technology and Management, 2009
The search for a smokeless propellant has encouraged scientists and engineers to look for a chlorine-free oxidizer as a substitute for AP (ammonium perchlorate).
Márcio Y. Nagamachi   +3 more
doaj  

Radiative Heating in Combustion Chamber of Liquid Propellant Rocket Engines

open access: yes, 2016
The effects of radiation heat transfer in rocket engine combustion chambers are studied analytically. The fuel is hydrogen, methane or ethanol, and the oxidizer is oxygen. Radiative heat fluxes are estimated using empirical equations, and convective heat
K. Takeshi, Satoshi Masaki
semanticscholar   +1 more source

Investigation of the existing methods for designing pre-combustion chambers in hybrid rocket engines

open access: yesАвіаційно-космічна техніка та технологія
Hybrid propellant rocket engines (HPRE) have been under development and advancement since the beginning of rocket propulsion research, alongside liquid and solid propellant rocket motors.
Maurício Sá Gontijo
doaj   +1 more source

Modeling and Simulation of Liquid Propellant Rocket Engine Transient Performance Using Modelica

open access: yes, 2015
This paper presents a liquid propellant rocket engine (LPRE) model library in Modelica language, which contains component models such as pipes, valves, tanks, turbo-pumps, combustion chambers, nozzles, injectors, gas generators, etc.
L. Wei   +5 more
semanticscholar   +1 more source

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