Solar Heat-Pipe Receiver Wick Modeling

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Description

Stirling-cycle engines have been identified as a promising technology for the conversion of concentrated solar energy into usable electrical power. In previous experimented work, we have demonstrated that a heat pipe receiver can significantly improve system performance-over a directly-illuminated heater head. The design and operating conditions of a heat pipe receiver differ significantly from typical laboratory heat pipes. New wick structures have been developed to exploit the characteristics of the solar generation system. Typically, these wick structures allow vapor generation within the wick. Conventional heat pipe models do not handle this enhancement yet it can more than double the performance ... continued below

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10 p.

Creation Information

Andraka, C.E. December 21, 1998.

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This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 77 times , with 6 in the last month . More information about this article can be viewed below.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM, and Livermore, CA (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

Stirling-cycle engines have been identified as a promising technology for the conversion of concentrated solar energy into usable electrical power. In previous experimented work, we have demonstrated that a heat pipe receiver can significantly improve system performance-over a directly-illuminated heater head. The design and operating conditions of a heat pipe receiver differ significantly from typical laboratory heat pipes. New wick structures have been developed to exploit the characteristics of the solar generation system. Typically, these wick structures allow vapor generation within the wick. Conventional heat pipe models do not handle this enhancement yet it can more than double the performance of the wick. In this study, I develop a steady-state model of a boiling-enhanced wick for a solar heat pipe receiver. The model is used for design-point calculations and is written in FORTRAN90. Some limited comparisons have been made with actual test data.

Physical Description

10 p.

Notes

OSTI as DE00002816

Medium: P; Size: 10 pages

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  • ASME Solar Energy Division, Maui, HI (US), 04/01/1999

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  • Report No.: SAND98-2836
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 2816
  • Archival Resource Key: ark:/67531/metadc668440

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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Creation Date

  • December 21, 1998

Added to The UNT Digital Library

  • June 29, 2015, 9:42 p.m.

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  • April 6, 2017, 7:06 p.m.

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Andraka, C.E. Solar Heat-Pipe Receiver Wick Modeling, article, December 21, 1998; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc668440/: accessed October 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.