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COBEM 2023
27th International Congress of Mechanical Engineering
Preliminary Design of a 25 kN Pressure-Fed Liquid Propellant Rocket Engine
Submission Author:
Maurício Sá Gontijo , DF
Co-Authors:
Maurício Sá Gontijo, Renato Filho, Anieli Schrammel, Olexiy Shynkarenko, Jungpyo Lee, Artur Elias De Morais Bertoldi
Presenter: Anieli Schrammel
doi://10.26678/ABCM.COBEM2023.COB2023-1931
Abstract
Pressure-fed liquid propellant rocket engines (LPRE) are the simplest configuration of this type of propulsion. Based on this simplicity and on the, consequently, lower costs, it is a natural way to be the first development of a propulsion company. This work consists of a preliminary design of a 25 kN Liquid Oxygen/Ethanol LPRE under pressure-fed condition that is being designed to be used on the new training rocket for launch centers, supported by the Brazilian government through the MCTI (Ministry of Science, Technology and Innovation), AEB (Brazilian Space Agency), FINEP (Financier of Studies and Projects) and FNDCT (National Fund for Scientific and Technological Development), and executed by DeltaV Engenharia Espacial. Training rockets are intended to be a way for the launch centers to keep their personnel trained to deal with any type of rocket. Brazil already has two types of training rockets, both solid propulsion based. With the intention of providing training for liquid rockets, this project was conceptualized. This rocket will be able to supply the launch center teams with experience on handling and operating liquid propellants and high-pressure systems, on tracking and on recovering the vehicle and on ground auxiliary devices operation. In addition, the project must have relatively low cost and the performance is not the one of the major concerns. With that in mind, the pressure-fed system was selected and it also uses ablative cooling, allied with film cooling. With the preliminary design presented in this work, further developments and improvements will be made, followed by tests, integration and prototype flight. For this project, a partnership was consolidated with the experienced team of the Chemical Propulsion Laboratory (CPL) from the University of Brasília.
Keywords
Liquid Propellant Rocket Engines, Pressure-Fed, Sounding rocket, Training Rocket
