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Description and orbit data of variable-conductance heat-pipe system for the communications technology satellite
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Gedeon, L. |
| Copyright Year | 1979 |
| Description | A variable-conductance heat-pipe system (VCHPS) with methanol as the working fluid and a nitrogen and helium mixture as the control gas was used for the thermal control of a 200 W RF traveling wave tube of the Communication Technology Satellite. Three stainless steel heat pipes (one redundant) and an aluminum radiator were designed to transfer 196 watts for an evaporator temperature of 50 C. The system has operated for three years with no noticeable change in performance. On four occasions the heat pipes apparently deprimed. A short time after reducing the tube power, the heat pipes reprimed and the system continued to operate normally. The description, qualification testing, and orbit data of the VCHPS are presented. |
| File Size | 1167627 |
| Page Count | 24 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19790022345 |
| Archival Resource Key | ark:/13960/t3712vv1x |
| Language | English |
| Publisher Date | 1979-08-01 |
| Access Restriction | Open |
| Subject Keyword | Fluid Mechanics And Heat Transfer Temperature Sensors Performance Tests Thermal Vacuum Tests Traveling Wave Tubes Spacecraft Radiators Heat Pipes Noncondensable Gases Equinoxes Temperature Control Communications Technology Satellite Vibration Tests 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 |
