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Record Details

Record 21 of 335
Development of an integrated heat pipe-thermal storage system for a solar receiver
Author and Affiliation:
Keddy, E.(Los Alamos National Lab., NM, United States)
Sena, J. Tom(Los Alamos National Lab., NM, United States)
Merrigan, M.(Los Alamos National Laboratory, NM, United States)
Heidenreich, Gary(Sundstrand Corp., Rockford, IL, United States)
Johnson, Steve(NASA Lewis Research Center, Cleveland, OH, United States)
Abstract: An integrated heat pipe-thermal storage system was developed as part of the Organic Rankine Cycle Solar Dynamic Power System solar receiver for space station application. The solar receiver incorporates potassium heat pipe elements to absorb and transfer the solar energy within the receiver cavity. The heat pipes contain thermal energy storage (TES) canisters within the vapor space with a toluene heater tube used as the condenser region of the heat pipe. During the insolation period of the earth orbit, solar energy is delivered to the heat pipe. Part of this thermal energy is delivered to the heater tube and the balance is stored in the TES units. During the eclipse period of earth orbit, the stored energy in the TES units is transferred by the potassium vapor to the toluene heater tube. A developmental heat pipe element was constructed that contains axial arteries and a distribution wick connecting the toluene heater and the TES units to the solar insolation surface of the heat pipe. Tests were conducted to demonstrate the heat pipe, TES units, and the heater tube operation. The heat pipe element was operated at design input power of 4.8 kW. Thermal cycle tests were conducted to demonstrate the successful charge and discharge of the TES units. Axial power flux levels up to 15 watts/sq cm were demonstrated and transient tests were conducted on the heat pipe element. Details of the heat pipe development and test procedures are presented.
Publication Date: Jun 01, 1988
Document ID:
19880056519
(Acquired Nov 28, 1995)
Accession Number: 88A43746
Subject Category: FLUID MECHANICS AND HEAT TRANSFER
Report/Patent Number: AIAA PAPER 88-2683
Document Type: Preprint
Publisher Information: United States
Financial Sponsor: NASA; United States
Organization Source: Los Alamos National Lab.; NM, United States
Sundstrand Corp.; Rockford, IL, United States
NASA Lewis Research Center; Cleveland, OH, United States
Description: 6p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: HEAT PIPES; HEAT STORAGE; SOLAR DYNAMIC POWER SYSTEMS; SPACE STATION POWER SUPPLIES; SYSTEMS INTEGRATION; HEAT FLUX; PHASE CHANGE MATERIALS; RANKINE CYCLE; THERMAL CYCLING TESTS; TRANSIENT RESPONSE; WICKS
Imprint And Other Notes: AIAA, Thermophysics, Plasmadynamics and Lasers Conference, San Antonio, TX, June 27-29, 1988. 6 p.
Availability Source: Other Sources
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