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Space Qualification of High Capacity Grooved Heat Pipes
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Abstract
In the frame of an ESA technology programme, the development of a High Capacity Grooved Heat Pipe (HGP), based on the thermal requirements of the next generation of telecommunication satellites, was contracted to SABCA.
After a trade-off and a design study, the selected concept was an aluminium extruded heat pipe (outer diameter of 25 mm) based on a multi re-entrant grooves design. This heat pipe was submitted to an acceptance test campaign: leak, proof, burst tests as well as thermal performance tests (maximum heat transport capacity, maximum tilt capability, start-up, priming, bending influence, ageing / gas plug, non-uniform heat input).
The test results showed for the multi re-entrant groove heat pipe a good confidence in the design and the fulfilment of the required specifications on heat transport and on tilt capability (experimental maximum heat transport capability of 1500 Watt-metres for a vapour temperature of 20°C -with ammonia-).
Based on this HGP concept, similar heat pipes have been developed with various outer diameters (11 mm, 15 mm and 20 mm) and with various shapes (circular outer shapes, integrated saddles).
Several of these heat pipes were tested during two parabolic flight campaigns, by varying the heat loads during the micro-gravity periods.
This HGP heat pipe family is now being submitted to a space qualification programme according to ESA standards (ESA PSS-49), both in straight and bent configuration. Within this qualification, the heat pipes are submitted to an extended test campaign including environmental (random/sinus vibration, constant acceleration) and thermal tests (thermal performance, thermal cycles, thermal soak, ageing).
Authors
Citation
Dubois, M., Mullender, B., Van Oost, S., Druart, J. et al., "Space Qualification of High Capacity Grooved Heat Pipes," SAE Technical Paper 951551, 1995, https://doi.org/10.4271/951551.Also In
References
- Heat Pipes Qualification Requirements 2 March 1983
- Dubois M. Van Oost S. Bekaert G. High Capacity Grooved Heat Pipe - Final Report 1992
- Dubois M. Van Oost S. Mullender B. High Capacity Grooved Heat Pipe 4 th European Symposium on Space Environmental and Control System 575 581 1991
- Dubois M. Van Oost S. Mullender B. High Capacity Grooved Heat Pipe 23 rd International Conference on Environmental Systems SAE paper 932303 1993
- Dunn P.D. Reay D.A. Heat Pipes 3rd 1982
- Dobran F. Heat Pipe Research and Development in the Americas 6 th International Heat Pipe Conference I 41 64 1987
- Saaski E. Investigation of an Inverted Meniscus Heat Pipe Wick Concept 1975
- Brost O. Gröll M. Münzel W.D. Technical Applications of Heat Pipes 3 rd International Heat Pipe Conference 1978
- Brennan P.J. Kroliczek E.J. Jen H. Mc Intosh R. Axially Grooved Heat Pipes 12 th Thermophysics Conference AIAA paper 77-747 1977
- Richter R.F.G. Brennan P.J. Rankin J.G. Development of an Advanced Trapezoidal Axially Grooved (ATAG) Heat Pipe 4 th Joint Thermophysics and Heat Transfer Conference AIAA paper 86-1342 1986
- Harwell W. Analysis and Tests of NASA Covert Groove Heat Pipe 1976
- Meyer R. Laux U. Schlitt R. Excess Liquid Formation in Orbit Test Results of Axially Grooved Heat Pipes 20 th Thermophysics Conference AIAA paper 85-1011 1985
- Barantsevich V.L. Opryshko S.I. Sasin V. YA. Methods for Improving the Maximum Heat Transfer Capacity of Axially Grooved Heat Pipe Heat Transfer - Soviet Research 16 o 4 1984
- Pietsch C. Hauser J. Development and Testing of a High Performance Quadro-Groove Heat Pipe 21 st International Conference on Environmental Systems SAE paper 911481 1991
- Schlitt R. Performance Characteristics of Recently Developed High Performance Heat Pipes 8 th International Heat Pipe Conference 1992
- Van Oost S. Dubois M. Bekaert G. Heat Pipe Testing for Space Applications - Experiment Results of ESA and CNES Parabolic Flight Campaigns - Tenth Anniversary of First ESA Parabolic Flight Campaign 151 155 1995