Masters Theses

Keywords and Phrases

1-1-1-2 Tetrafluoroethane


"Due to the launch safety constraints placed on university-built small satellites, designing a low-cost propulsion system to meet mission requirements presents a significant challenge to aspiring student engineers. The Missouri University of Science and Technology is currently developing a low-cost, two-phase propulsion system using the refrigerant R-134a as the propellant that can be stored at low pressures while still providing sufficient performance to meet mission goals. The purpose of this study is to present the testing results of a refrigerant-based cold gas system utilizing R-134a as a saturated liquid propellant and the ability to design this system to be portable to host buses at other universities. This work completed a preliminary design using R-134a and conducted parametric and endurance testing to validate R-134a as a safe and affordable propellant for university-class satellites. Based on these results, other universities can calculate the performance properties required by their propulsion system and use this information to size and construct a low-cost system capable of meeting their goals using commercial off-the-shelf (COTS) hardware"--Abstract, page iii.


Pernicka, Hank

Committee Member(s)

Rovey, Joshua L.
Riggins, David W.


Mechanical and Aerospace Engineering

Degree Name

M.S. in Aerospace Engineering


Missouri University of Science and Technology

Publication Date

Spring 2010


xii, 150 pages

Note about bibliography

Includes bibliographical references (pages 73-75).


© 2010 Ryan Alan Pahl, All rights reserved.

Document Type

Thesis - Open Access

File Type




Subject Headings

Artificial satellites -- Propulsion systems
Cold gases
Propellants -- Research

Thesis Number

T 9623

Print OCLC #


Electronic OCLC #