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Heat Pipe Science and Technology, An International Journal

Publicado 4 números por año

ISSN Imprimir: 2151-7975

ISSN En Línea: 2151-7991

MODELING TRANSIENT ACCELERATION EFFECTS ON HEAT PIPE PERFORMANCE

Volumen 3, Edición 2-4, 2012, pp. 153-167
DOI: 10.1615/HeatPipeScieTech.2013006465
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SINOPSIS

Acceleration forces are an important factor in the design of heat pipes for space systems. Since typical aerospace heat pipes have a low capillary pumping head, they can be affected by relatively small accelerations. In some spacecraft acceleration forces are negligible once on orbit. Manned spacecraft tend to have higher thrust propulsion systems and therefore higher acceleration loads. This coupled with the stringent operational requirements associated with manned systems has limited the application of heat pipes to such systems. In the current work, the application of heat pipes in a spacecraft with a known acceleration environment will be addressed. The generic acceleration problem will be discussed. An updated approach for thermohydraulic modeling will be presented. Specific methods used for treating acceleration deprime and recovery will be presented, along with example simulations and comparisons with available data. The current work is intended to describe on-orbit acceleration forces on heat pipes and how they may be addressed in typical spacecraft systems.

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