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Space infrared telescope facility (sirtf) design and thermal analysis
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Lee, Jeffrey H. |
| Copyright Year | 1987 |
| Description | The design and performance characteristics of an observatory are compared with those of a storage dewar. The critical design technologies required to increase cryogen dewar lifetime are discussed. In particular, outer shell temperature, vapor cooled shields, multilayer insulation performance, and tank support systems are analyzed to assess their impact on cryogen lifetime for both the observatory and the storage dewar. The cryogen lifetime and cryogen mass loss rate of the Space Infrared Telescope Facility (SIRTF) are compared with that of the Infrared Astronomy Satellite and the Cosmic Background Explorer Satellite. A 0.1 percent mass loss per day of superfluid helium dewar can be designed using current state-of-the-art dewar technology. Space-based liquid hydrogen and liquid oxygen tanks can be designed for a 5-year lifetime. |
| File Size | 22874546 |
| Page Count | 28 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19880006552 |
| Archival Resource Key | ark:/13960/t6062fq1j |
| Language | English |
| Publisher Date | 1987-09-01 |
| Access Restriction | Open |
| Subject Keyword | Astronomy Cryogenic Equipment Life Durability Fluid Management Space Infrared Telescope Facility Cryogenic Fluids Helium Systems Engineering Comparison Liquid Oxygen Thermal Analysis Storage Tanks Liquid Hydrogen Spacecraft Design Cosmic Background Explorer Satellite Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
