Abstract
This paper provides an overview of the design and development process of the L75 Liquid Propellant Rocket Engine (LPRE). Being developed at Institute of Aeronautics and Space (IAE), it is the first Brazilian open-cycle liquid rocket engine pressurized by turbopump, designed to deliver 75 kN of thrust in vacuum as a cryogenic upper stage engine using liquid oxygen and ethanol. The Preliminary Design Review (PDR) was accomplished in December 2011 and December 2012 the project received from Agencia Espacial Brasileira (AEB) a financial support, through an agreement with Fundacao de Desenvolvimento da Pesquisa (FUNDEP), to proceeding with the development of models and tests. The main components of the engine, briefly described here, are thrust chamber assembly, gas generator, turbopump assembly, control system and ignition system.
Highlights
The knowledge already acquired on technology of solid propellant rocket motors enables Brazil to have propulsion systems for small launch vehicles
To obtain the technology and the know-how to design, manufacture, test and operate a Liquid Propulsion Rocket Engine (LPRE) is a goal to be achieved within the National Program of Space Activity (PNAE, 2012) in order to enable the development of satellite launch vehicles with higher performance and accuracy than solid propulsion
Several activities have been conducted in Instituto de Aeronáutica e Espaço (IAE) such as the specification, design and construction of liquid rocket engines
Summary
The knowledge already acquired on technology of solid propellant rocket motors enables Brazil to have propulsion systems for small launch vehicles. To obtain the technology and the know-how to design, manufacture, test and operate a Liquid Propulsion Rocket Engine (LPRE) is a goal to be achieved within the National Program of Space Activity (PNAE, 2012) in order to enable the development of satellite launch vehicles with higher performance and accuracy than solid propulsion. It is envisaged the possibility to significantly increase the payload capacity of VLS-1 through partial modification of the vehicle, especially with the replacement of the solid propellant motors by liquid propellant engines in an upper stage To achieve this goal, several activities have been conducted in Instituto de Aeronáutica e Espaço (IAE) such as the specification, design and construction of liquid rocket engines. The L75 engine will operate with a thrust regulator, which is capable to regulate the LOx pressure for the gas generator, modulating the turbine power, which reflects on the turbopump rust [kN]
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
