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Solid hydrogen experiments for atomic propellants: particle formation energy and imaging analyses
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Palaszewski, Bryan |
| Copyright Year | 2002 |
| Description | This paper presents particle formation energy balances and detailed analyses of the images from experiments that were conducted on the formation of solid hydrogen particles in liquid helium during the Phase II testing in 2001. Solid particles of hydrogen were frozen in liquid helium and observed with a video camera. The solid hydrogen particle sizes and the total mass of hydrogen particles were estimated. The particle formation efficiency is also estimated. Particle sizes from the Phase I testing in 1999 and the Phase II testing in 2001 were similar. Though the 2001 testing created similar particles sizes, many new particle formation phenomena were observed. These experiment image analyses are one of the first steps toward visually characterizing these particles and it allows designers to understand what issues must be addressed in atomic propellant feed system designs for future aerospace vehicles. |
| File Size | 473986 |
| Page Count | 28 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20030005922 |
| Archival Resource Key | ark:/13960/t9770fb2p |
| Language | English |
| Publisher Date | 2002-12-01 |
| Access Restriction | Open |
| Subject Keyword | Launch Vehicles And Launch Operations Energy of Formation Propellants Aerospace Vehicles Hydrogen Elementary Particles Imaging Techniques Liquid Helium Particle Energy Solid Cryogens Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
