Heat-pipe transient model for space applications

Details Heat-pipe transient model for space applications Heat-pipe transient model for space applications

Jan 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991aipc..217..857t&link_type=abstract

Proceedings of the eighth symposium on space nuclear power systems. AIP Conference Proceedings, Volume 217, pp. 857-868 (1991).

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Other Topics In Heat Transfer, Lunar, Planetary, And Deep-Space Probes

Scientific paper

A two-dimensional model is developed for simulating heat pipes transient performance following changes in the input/rejection power or in the evaporator/condenser temperatures. The model employs the complete form of governing equations and momentum and energy jump conditions at the liquid-vapor interface. Although the model is capable of handling both cylindrical and rectangular geometries, the results reported are for a circular heat pipe with liquid lithium as the working fluid. The model incorporates a variety of other working fluids, such as water, ammonia, potassium, sodium, and mercury, and offers combinations of isothermal, isoflux, convective and radiative heating/cooling conditions in the evaporator and condenser regions of the heat pipe. Results presented are for lithium heat pipes with exponential heating of the evaporator and isothermal cooling of the condenser.

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