A5019509008- Spacecraft and Cryogenic Technologies
- Rocket and propulsion systems research
- Energetic Materials and Combustion
- Electrohydrodynamics and Fluid Dynamics
- Spacecraft Design and Technology
- Plasma Diagnostics and Applications
- Spacecraft Dynamics and Control
- Advanced Battery Technologies Research
- Radiation Effects in Electronics
- Plasma Applications and Diagnostics
- Particle accelerators and beam dynamics
- Opportunistic and Delay-Tolerant Networks
- Cryptographic Implementations and Security
- Astro and Planetary Science
- Muon and positron interactions and applications
ZHAW Zurich University of Applied Sciences
2024-2025
The University of Tokyo
2018-2024
In this study, a water resistojet propulsion system, named AQUARIUS, is proposed and the breadboard model (BBM) test results engineering (EM) design are described.AQUARIUS will be on-boarded SLS EM-1 CubeSat: EQUULEUS, which scheduled to launch in 2019.AQUARIUS uses storable, safe non-toxic propellant: water, allows for of all system below 100 kPa, reduction dry mass ratio simplification feed line routing using soft tubes.AQUARIUS consists three components as follows: tank, vaporization...
The University of Tokyo has proposed a water resistojet thruster with high certainty liquid–vapor separation and low power consumption. In this propulsion system, liquid is periodically vaporized in pulsating manner to generate thrust. A vaporization chamber labyrinth-shaped flow path catches droplets using their surface tension separate the vapor, vaporize under normal temperature reduce input by reusing heat from surrounding components. study, we designed fabricated flight model system for...
High thrust propulsion systems that can be used in small spacecraft are urgently needed to expand the use of spacecraft. This study proposes a hybrid thruster for using wire-shaped magnesium as fuel and water an oxidizer. "Hybrid thruster" means in-space system generates chemical reaction between solid vapor oxidizer, such those utilized rockets. Both very safe, highly available, storable. To assess feasibility thruster, we carried out experiments utilizing magnesium-wire combustion at...
The combustion of aluminum and magnesium is an attractive power source. Many practical tests have been conducted as a composite propellant metal powder water. However, because the safety ease handling are required for applying small spacecraft, it desirable that nonpowder used fuel stored separately from oxidizer. Heat loss has significant impact on bulk metals. Though behavior metals differs powders, little reported with This study, first, considered two types ignition method: Joule heating...
A combination of water and aluminum powder has been studied for space propulsion. These propellants are particularly suitable chemical micropropulsion. However, development is being delayed due to many constraints, mainly: safety requirements system restrictions. This study measured the combustion pressure reacted fraction pulsed using vapor under conditions that satisfy following constraints: 100 kPa, diameter over 10 µm, a chamber smaller than 1 L. In experimental chamber, flow had mass...
小型人工衛星用エンジンの開発を目標に，水蒸気雰囲気でのアルミニウム粉末の燃焼実験を行った．水蒸気圧力は約70 kPaで，アルミニウムは–250メッシュサイズの球状粉体を使用した．燃焼実験により，水蒸気－粉体アルミニウム燃焼による着火遅れ，最大圧力，圧力上昇レートを取得した．これにより水蒸気－アルミニウム粉末燃焼を用いた小型エンジンの推進性能が概算され，将来性が確認された．