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Development and extended operation of a high power radiation loaded heat pipe

Author
Merrigan, M. A.
Published
United States : [publisher not identified], 1984
Springfield, Va.: National Technical Information Service, [approximately 1984]
Physical Description
microfiche : negative ; 11 x 15 cm
Additional Creators
Keddy, E. S., Martinez, H. E., and Runyan, J. R.

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Summary
A high temperature, high power molybdenum-lithium heat pipe has been fabricated and tested at 1500 K for 1700 hours with radiant heat rejection. Power throughput during the test was approximately 14 kW, corresponding to an axial flux density of 11 kW/cm2 for the 1.59 cm diameter heat pipe. Radial flux density was 70 W/cm2 over an evaporator length of 40.0 cm. Condenser length was approximately 150 cm with radiant heat rejection from the condenser to a coaxial water cooled radiation calorimeter. A plasma sprayed, high emissivity coating was used on the condenser surface to increase the radiant heat rejection during the tests. The heat pipe was operated for 514 hours at steady state conditions before being damaged during a planned shutdown for test equipment maintenance. The damage was repaired and the initial 1000 hour test period completed without further incident. After physical examination of the heat pipe at 1000 hours the test was resumed and the heat pipe operated at the same conditions for an additional 700 hours before conclusion of this test phase.
Report Numbers
DE84014040; LA-UR-84-1950; CONF-8406155-2
Other Subject(s)
Collection
NTIS collection.
Note
DOE contract number: W-7405-ENG-36
OSTI Identifier 6824364
Research organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States).
View MARC record | catkey: 47343307