Abstract
In the last decade, CubeSat development has shown the potential to allow for low-risk, low-cost space missions. To further improve the capabilities of CubeSats in large scale missions, a novel micro-propulsion system is being developed at Delft University of Technology. The system is based on a Vaporizing Liquid Microthruster (VLM), which is manufactured by means of Micro Electro-Mechanical Systems (MEMS) technology. It aims to achieve a specific impulse of 100 s and thrust of 1.4 mN, using water as propellant. This paper presents a status update of the development project. Design solutions are shown to circumvent manufacturing tolerances in the wafer-bonding and sealing of the interfaces of the VLM. Secondly, performance analysis based on a 1D-flow approximation is shown to provide a useful tool to quickly predict VLM performance. Next, a detailed design of the propellant storage tank for the CubeSat micro-propulsion system is presented. Finally, the test plan and test setup for the VLM are elaborated, presenting solutions to determine chamber temperature and pressure without directly sensing it.
| Original language | English |
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| Title of host publication | Space propulsion 2016 |
| Number of pages | 12 |
| Publication status | Published - 2016 |
| Event | Space propulsion - Marriott Rome Park Hotel, Rome, Italy Duration: 2 May 2016 → 6 May 2016 http://www.propulsion2016.com/ |
Conference
| Conference | Space propulsion |
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| Abbreviated title | SP2016 |
| Country/Territory | Italy |
| City | Rome |
| Period | 2/05/16 → 6/05/16 |
| Internet address |