Thermal-energy storage and heat-transfer support program. Task-1. Heat-transport system study: Copper-water and steel-sodium DWAHP. Volume 1. Final report, Jun 87-Sep 90

Technical Report · Fri Mar 01 00:00:00 EST 1991

OSTI ID:6249251

Ponnappan, R

This report covers the test results of some extended research conducted on both 2m copper-water double wall artery heat pipe and 2m stainless steel-sodium heat pipe. The experimental results of the effective thermal conductivity of the wick agree with the predicted results. It is shown that the double wall wick is a 'boiling-tolerant' wick and it can support high radial heat flux. The 2m sodium-SS 304 heat pipe was successfully tested using a pyrolytic graphite heater after facing several failures with nichrome and cartridge type heaters. Inert gas-filled mode and conventional mode startup tests were conducted. The startup from frozen state was smooth in gas-filled mode whereas similar startup attempt was rough in the conventional mode. Calorimetric measurement of heat losses and tilt test results are also presented.

• Research Organization: Universal Energy Systems, Inc., Dayton, OH (United States)
• OSTI ID: 6249251
• Report Number(s): AD-A-239928/5/XAB; UES-799-TR-90-001-VOL-1; CNN: F33615-87-C-2738
• Resource Relation: Other Information: See also Volume 3, AD-A239 929
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
HEAT PIPES
DESIGN
PERFORMANCE TESTING
CALORIMETERS
CHROMIUM ALLOYS
ENERGY STORAGE
FREEZING
GASES
HEAT FLUX
HEAT LOSSES
HEAT PIPE WICKS
HEAT TRANSFER
HEATERS
NICKEL ALLOYS
PYROLYTIC CARBON
RESEARCH PROGRAMS
THERMAL CONDUCTIVITY
THERMAL RADIATION
ALLOYS
CARBON
ELECTROMAGNETIC RADIATION
ELEMENTS
ENERGY LOSSES
ENERGY TRANSFER
FLUIDS
LOSSES
MEASURING INSTRUMENTS
NONMETALS
PHYSICAL PROPERTIES
RADIATIONS
STORAGE
TESTING
THERMODYNAMIC PROPERTIES
420400* - Engineering- Heat Transfer & Fluid Flow