Development of a 75-kW heat-pipe receiver for solar heat-engines

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A program is now underway to develop commercial power conversion systems that use parabolic dish mirrors in conjunction with Stirling engines to convert solar energy to electric power. In early prototypes, the solar concentrator focused light directly on the heater tubes of the Stirling engine. Liquid-metal heat-pipes are now being developed to transfer energy from the focus of the solar concentrator to the heater tubes of the engine. The dome-shaped heat-pipe receivers are approximately one-half meters in diameter and up to 77-kW of concentrated solar energy is delivered to the absorber surface. Over the past several years, Sandia National Laboratories, ... continued below

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8 p.

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Adkins, D.R.; Andraka, C.E. & Moss, T.A. May 1, 1995.

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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 48 times , with 9 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 (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

A program is now underway to develop commercial power conversion systems that use parabolic dish mirrors in conjunction with Stirling engines to convert solar energy to electric power. In early prototypes, the solar concentrator focused light directly on the heater tubes of the Stirling engine. Liquid-metal heat-pipes are now being developed to transfer energy from the focus of the solar concentrator to the heater tubes of the engine. The dome-shaped heat-pipe receivers are approximately one-half meters in diameter and up to 77-kW of concentrated solar energy is delivered to the absorber surface. Over the past several years, Sandia National Laboratories, through the sponsorship of the Department of Energy, has conducted a major program to explore receiver designs and identify suitable wick materials. A high-flux bench-scale system has been developed to test candidate wick designs, and full-scale systems have been tested on an 11-meter test-bed solar concentrator. Procedures have also been developed in this program to measure the properties of wick materials, and an extensive data-base on wick materials for high temperature heat pipes has been developed. This paper provides an overview of the receiver development program and results from some of the many heat-pipe tests.

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8 p.

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OSTI as DE95011604

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  • 9. international heat pipe conference, Albuquerque, NM (United States), 1-5 May 1995

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  • Other: DE95011604
  • Report No.: SAND--94-2059C
  • Report No.: CONF-9505155--2
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 74113
  • Archival Resource Key: ark:/67531/metadc707568

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Office of Scientific & Technical Information Technical Reports

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  • May 1, 1995

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  • Sept. 12, 2015, 6:31 a.m.

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  • April 14, 2016, 3:32 p.m.

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Adkins, D.R.; Andraka, C.E. & Moss, T.A. Development of a 75-kW heat-pipe receiver for solar heat-engines, article, May 1, 1995; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc707568/: accessed January 18, 2019), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.