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Cryogenic two-phase flight experiment: results overview
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Stoyanof, M. Brennan, P. Buchko, M. Bello, M. Swanson, T. |
| Copyright Year | 1995 |
| Description | This paper focuses on the flight results of the Cryogenic Two-Phase Flight Experiment (CRYOTP), which was a Hitchhiker based experiment that flew on the space shuttle Columbia in March of 1994 (STS-62). CRYOTP tested two new technologies for advanced cryogenic thermal control; the Space Heat Pipe (SHP), which was a constant conductance cryogenic heat pipe, and the Brilliant Eyes Thermal Storage Unit (BETSU), which was a cryogenic phase-change thermal storage device. These two devices were tested independently during the mission. Analysis of the flight data indicated that the SHP was unable to start in either of two attempts, for reasons related to the fluid charge, parasitic heat leaks, and cryocooler capacity. The BETSU test article was successfully operated with more than 250 hours of on-orbit testing including several cooldown cycles and 56 freeze/thaw cycles. Some degradation was observed with the five tactical cryocoolers used as thermal sinks, and one of the cryocoolers failed completely after 331 hours of operation. Post-flight analysis indicated that this problem was most likely due to failure of an electrical controller internal to the unit. |
| File Size | 746699 |
| Page Count | 13 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19960003755 |
| Archival Resource Key | ark:/13960/t5fc00h0q |
| Language | English |
| Publisher Date | 1995-09-01 |
| Access Restriction | Open |
| Subject Keyword | Fluid Mechanics And Heat Transfer Flight Tests Leakage Controllers Conductive Heat Transfer Postflight Analysis Failure Modes Spaceborne Experiments Thermal Cycling Tests Data Processing Data Reduction Space Station Payloads Specific Heat Heat Pipes Heat Storage Cryogenics Temperature Control Heat Sinks Thermal Degradation Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
