Session: 15-01-01: ASME International Undergraduate Research and Design Exposition

Paper Number: 145228

145228 - Bi-Propellent Liquid Rocket Engine 

The journey of developing a liquid bi-propellant rocket engine commenced as a side project within the propulsion sub-team of the Atomic Aggies, the rocketry club at our university. Our goal was to engineer an engine for the rocket to finally have an entirely crafted in-house rocket and get more points for competition. This aspiration, however, evolved into a broader vision for our institution. Beyond fulfilling our goal of constructing a custom rocket, this project sparked an interest in the field of liquid rocket engines prompting a research and development initiative at New Mexico State University. This project has allowed members to familiarize themselves into intricate realms such as engine design. From learning the intricacies of calculating optimal engine geometries to understanding the unique methods of cooling mechanisms utilized in liquid rocket engines, students have been immersed in a comprehensive learning journey. Hands-on experience with CAD software has equipped them with essential design skills, facilitating the translation of theoretical knowledge into practical applications. Beyond engine design, the project has offered insights into the intricacies of the feed system. Students have gained valuable knowledge about specialty valves, optimizing plumbing configurations, and mitigating pressure differentials efficiently. The construction of a robust test stand has provided a platform for exploring material science principles, as well as honing skills in data acquisition and analysis. Students will acquire important information required to monitor engine and feed system parameters effectively. Furthermore, the project has instilled a culture of safety consciousness, emphasizing adherence to rigorous protocols and regulatory standards. An Emergency Safety Plan (ESP) has been established dictating procedures in case of an unintended accident. Students will acquire the necessary competencies to navigate potential contingencies. Collaborative support from faculty mentors, industry professionals, and team members' independent research endeavors has been essential in propelling the project forward. Drawing insights from texts such as "Rocket Propulsion Elements", and “Modern Engineering for design of liquid-propellent rocket engines”, students have enriched their learning experience, in addition to expanding their understanding of aerospace and mechanical engineering principles. This project has encouraged a dynamic learning environment, allowing students to utilize both their theoretical knowledge and practical application skills. By involving themselves in the development and manufacturing of rocket engine, students have not only gained technical knowledge but have also cultivated essential skills in teamwork, problem-solving, and innovation. The development of this project is still in progress and an expected hot fire test for the liquid engine will happen during the Summer of 2024 or early Fall of 2024 meaning much research still has to be conducted to consider the project fully complete. The research that was conducted allowed the team to have a foundation for the engine parameters. This engine will produce 250lbf of thrust and use nitrous oxide and ethanol as the two propellants. The engine will utilize ablative cooling in the form of a graphite insert located at the throat of the engine to mitigate burn-throughs. The project opened new opportunities to a liquid engine program that will develop multiple engines for future years to come. This project not only stands as an opportunity for growth for the institution, as liquid rocket programs are not common amongst universities in the United States. The main focus of the program is to expose New Mexico State students to aerospace opportunities from our institution.

Presenting Author: Jorge Solis New Mexico State University

Presenting Author Biography: Hello my name is Jorge Solis. I am currently pursuing a double major in Aerospace and Mechanical Engineering with a minor in physics. I am a part of the Atomic Aggies and my main interest is in rocket propulsion. I am currently the propulsion lead for my university's rocket club and I am working on the design and development of a new liquid engine capable of producing 250lbf of thrust. I have also assisted with the manufacturing for a liquid bi-propellent rocket engine capable of producing 225lbf of thrust which is what started my interest in rocket propulsion. I am an active member of my ASME organization where I get to work with 3D printing and reinforce my ability to use CAD programs. I got the opportunity to compete in the EFx competition where we took 1st place with our 3D printed hover craft in Pomona California. This semester I recently got involved with the development of a thrust reverser for a model jet engine through Air Force Research Laboratory (AFRL) at Wright Patterson Air Force Base (WPAFB).

Authors:

Jorge Solis New Mexico State University
Caedon Carrasco New Mexico State University
Anthony Gonzalez New Mexico State University
Bryce Richards New Mexico State University
Brenden Moriarty New Mexico State University