An investigation of corrosion in liquid-metal heat pipes [electronic resource].

Published:: Washington, D.C. : United States. Dept. of Energy, 1998.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:: 8 pages : digital, PDF file
Additional Creators:: Sandia National Laboratories, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information

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Summary:

Research is underway to develop a 75-kW heat pipe to transfer solar energy from the focus of a parabolic dish concentrator to the heater tubes of a Stirling engine. The high flux levels and high total power level encountered in this application have made it necessary to use a high-performance wick structure with fibers on the order of 4 to 8 microns in diameter. This fine wick structure is highly susceptible to corrosion damage and plugging, as dissolved contaminants plate out on the evaporator surface. Normal operation of the heat pipe also tends to concentrate contaminants in localized areas of the evaporator surface where heat fluxes are the highest. Sandia National Laboratories is conducting a systematic study to identify procedures that reduce corrosion and contamination problems in liquid-metal heat pipes. A series of heat pipes are being tested to explore different options for cleaning heat-pipe systems. Models are being developed to help understand the overall importance of operating parameters on the life of heat-pipe systems. In this paper, the authors present their efforts to reduce corrosion damage.

Report Numbers:

E 1.99:sand--98-1393c
E 1.99: conf-981107--
conf-981107--
sand--98-1393c

Subject(s):

Solar Energy

Other Subject(s):

Note:

Published through SciTech Connect.
08/01/1998.
"sand--98-1393c"
" conf-981107--"
"DE98007191"
"EB2311010"
1998 international mechanical engineering congress and exposition, Anaheim, CA (United States), 15-20 Nov 1998.
Moreno, J.B.; Rawlinson, K.S.; Adkins, D.R.; Andraka, C.E.; Showalter, S.K.; Moss, T.A.; Cordiero, P.G.

Funding Information:

AC04-94AL85000

View MARC record | catkey: 14796343