skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Reduction of radiative heat losses for solar thermal receivers.

Abstract

Abstract not provided.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1315603
Report Number(s):
SAND2014-15990C
533186
DOE Contract Number:
AC04-94AL85000
Resource Type:
Conference
Resource Relation:
Conference: Proposed for presentation at the SPIE High and Low Concentrator Systems for Solar Energy Applications IX held August 17-21, 2014 in San Diego, CA.
Country of Publication:
United States
Language:
English

Citation Formats

Ho, Clifford K., Christian, Joshua Mark, Ortega, Jesus Daniel, Yellowhair, Julius, Mosquera, Matthew Joseph, and Andraka, Charles E. Reduction of radiative heat losses for solar thermal receivers.. United States: N. p., 2014. Web.
Ho, Clifford K., Christian, Joshua Mark, Ortega, Jesus Daniel, Yellowhair, Julius, Mosquera, Matthew Joseph, & Andraka, Charles E. Reduction of radiative heat losses for solar thermal receivers.. United States.
Ho, Clifford K., Christian, Joshua Mark, Ortega, Jesus Daniel, Yellowhair, Julius, Mosquera, Matthew Joseph, and Andraka, Charles E. Tue . "Reduction of radiative heat losses for solar thermal receivers.". United States. doi:. https://www.osti.gov/servlets/purl/1315603.
@article{osti_1315603,
title = {Reduction of radiative heat losses for solar thermal receivers.},
author = {Ho, Clifford K. and Christian, Joshua Mark and Ortega, Jesus Daniel and Yellowhair, Julius and Mosquera, Matthew Joseph and Andraka, Charles E.},
abstractNote = {Abstract not provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jul 01 00:00:00 EDT 2014},
month = {Tue Jul 01 00:00:00 EDT 2014}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share:
  • Solar dish/Stirling systems using sodium heat pipe receivers are being developed by industry and government laboratories here and abroad. The unique demands of this application lead to heat pipe wicks with very large surface areas and complex three-dimensional flow patterns. These characteristics can enhance the mass transport and concentration of constituents of the wick material, resulting in wick corrosion and plugging. As the test times for heat pipe receivers lengthen, we are beginning to see these effects both indirectly, as they affect performance, and directly in post-test examinations. We are also beginning to develop corrective measures. In this paper, wemore » report on our test experiences, our post-test examinations, and on our initial effort to ameliorate various problems.« less
  • Unique aspects of the problem of determining the convective heat loss from large solar receivers are identified, and the associated modeling requirements are established. Data are taken from the literature to demonstrate the importance of property variations in the convective loss determination and to verify ways of correlating this influence. Four combined convection regimes are identified, and published data are used to show the utility of various combined convection correlations.
  • Separate abstracts were prepared for 13 papers in these proceedings. Also included is an overview speech and a panel discussion. (LEW)
  • The problem of mixed convection from external receivers is considered. The governing partial differential equations are stated, and the numerical solution is obtained using Keller's box method. The computer code developed to predict the heat losses in the attached flow region is described. Special attention is given to treatment of some numerical difficulties that arise. Preliminary computational results for laminar three-dimensional mixed convection are presented and discussed. Future project efforts and planned extensions of the present code are described. (LEW)
  • Research that focuses on fundamental aspects of energy conversion could lead to innovative and improved energy storage technologies. Research progress in two energy conversion processes is summarized and the associated storage technologies described. These two processes are particle catalyzed solar photodissociation for thermochemical energy conversion and storage, and the controlled emission of thermal radiation using narrow-bandgap semiconductor materials.