The Department is in charge of the design, production and testing of the hybrid engine which will power our rocket for EuRoC 2023. Furthermore, they use a testing engine to research new molds for our granular fuel and test different types of fuel and oxidant. To achieve its goals, the department is divided into three teams:
・Tank & Feed
・Research & Development
The workflow begins with the preliminary design of the combustion chamber and nozzle through NASA CEA, followed by the definitive design by writing code of thermal, combustion and tank drain simulations, and ends with the functional CAD design and the production/assembly of all the components. Once the engine has been assembled, it faces a series of static tests to confirm the achieved design.
They are in charge of the thermal and structural design of the combustion chamber and engine nozzle, while also collaborating in the design of the test stand. The first step is the selection of an appropriate oxidant and fuel through a series of thermal and chemical simulations of the combustion reaction, followed by the preliminary and definitive performance sizing and the 3D design of singular components. The objective is to guarantee structural integrity and desired performance for the engine.
Tank & Feed Line
They are responsible for the design of the oxidant tank and the engine feedline. A crucial part of this team’s design phase is the tank drain simulation to determine the oxidant mass flow entering the combustion chamber. Therefore, there is a constant exchange with the Combustion Chamber team as the design phase, which also includes the study of static test sensors and the realization of PID diagrams for the feedline, is typically iterative.
Research & Development
The complete realization of the rocket engine generally requires an extensive period of time, but by parallelizing the production work with our research, the department is capable of constantly coming up with alternative and creative solutions without subtracting excessive resources from the other two teams. The R&D section uses a test HRE Mini engine as a study platform to analyze different sections of the grain and alternative fuel-oxidant pairings. In this case, the mathematical simulations are alternated with an intense work of static fire tests.