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Miniature loop heat pipe with multiple evaporators for thermal control of small spacecraft
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Birur, Gajanana Ottenstein, Laura Douglas, Denya Ku, Jentung Pauken, Michael |
| Copyright Year | 2005 |
| Description | This paper presents an advanced miniature heat transport system for thermal control of small spacecraft. The thermal system consists of a loop heat pipe (LHP) with multiple evaporators and multiple deployable radiators for heat transfer, and variable emittance coatings on the radiators for performance enhancement. Thermoelectric coolers are used to control the loop operating temperature. The thermal system combines the functions of variable conductance heat pipes, thermal switches, thermal diodes, and the state-of-the-art LHPs into a single integrated thermal system. It retains all the performance characteristics of state-of-the-art LHPs and offers additional advantages to enhance the functionality, performance, versatility, and reliability of the system. Steady state and transient analytical models have been developed, and scaling criteria have also been established. A breadboard unit has been built for functional testing in laboratory and thermal vacuum environments. Experimental results show excellent performance of the thermal system and correlate very well with theoretical predictions. |
| File Size | 6387870 |
| Page Count | 13 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20050071089 |
| Archival Resource Key | ark:/13960/t6644q75f |
| Language | English |
| Publisher Date | 2005-01-01 |
| Access Restriction | Open |
| Subject Keyword | Spacecraft Design, Testing And Performance Conductive Heat Transfer Evaporators Coatings Systems Integration Steady State Radiators Emittance Heat Pipes Temperature Control Miniaturization Spacecraft Design Electrostatics Heat Transfer Operating Temperature Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
