This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Development Testing of a Paraffin-Actuated Heat Switch for Mars Rover Applications
Technical Paper
2002-01-2273
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
A paraffin-actuated heat switch has been developed for thermal control of the batteries used on the 2003 Mars Exploration Rovers. The heat switch is used to reject heat from the rover battery to a radiator. This paper describes the development test program designed, in part, to measure the thermal conductance of the heat switch in an 8 Torr CO2 environment over the expected operating temperature range of the battery. The switch has a closed conductance of about 0.6 W/°C and an open conductance of 0.019 W/°C. The test program also included measuring the battery temperature profile over a hot case and a cold case Mars diurnal cycle. The test results confirm that the battery will remain well within the upper and lower allowable flight temperatures in both cases.
Authors
- Michael Pauken - Jet Propulsion Laboratory, California Institute of Technology
- Eric Sunada - Jet Propulsion Laboratory, California Institute of Technology
- Keith Novak - Jet Propulsion Laboratory, California Institute of Technology
- Charles Phillips - Jet Propulsion Laboratory, California Institute of Technology
- Gajanana Birur - Jet Propulsion Laboratory, California Institute of Technology
- Kurt Lankford - Starsys Research Corporation
Citation
Pauken, M., Sunada, E., Novak, K., Phillips, C. et al., "Development Testing of a Paraffin-Actuated Heat Switch for Mars Rover Applications," SAE Technical Paper 2002-01-2273, 2002, https://doi.org/10.4271/2002-01-2273.Also In
References
- Christiansen, S. Wiens, M. Tibbits, S. Chave, R. “Utilization of polymeric smart materials for heterarchical thermal control of spacecraft systems,” Proceedings of the 1st Conference on Next Generation Launch Systems and 2nd Spacecraft Thermal Control Symposium Albuquerque, NM Jan. 7 11 1996 (AIP Conference Proceedings, No. 361) 1996 863 868
- Sunada, E. Pauken, M. Novak, K. Phillips, C. Birur, G. Lankford, K. “Design and Flight Qualification of a Paraffin-Actuated Heat Switch for Mars Surface Applications 32nd Int. Conf. On Environmental Systems San Antonio TX July 15 18 2002