The performance of a solar thermal parabolic trough plant with thermal storage is dependent upon the arrangement of the heat exchangers that ultimately transfer energy from the sun into steam. An indirect two-tank molten salt storage system that only transfers heat with the solar field heat transfer fluid is the most commercially acceptable thermal storage design. Annual electricity generation from two differing indirect two-tank molten salt storage designs and a base case with no thermal storage were modeled. Four components were characterized in a quasi-steady state analysis dependent upon key ambient and operational parameters: solar field, storage, heat exchangers, and power block. The parameters for the collector field remained constant for all models and were based on the SEGS VI plant. The results of net power generation favor storage though the design that maximizes annual output depends on whether maximum power generation or power generation during the evening peak demand hours is desired. Additionally, the economic trade offs are discussed for the three arrangements.
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ASME 2009 3rd International Conference on Energy Sustainability collocated with the Heat Transfer and InterPACK09 Conferences
July 19–23, 2009
San Francisco, California, USA
Conference Sponsors:
- Advanced Energy Systems Division and Solar Energy Division
ISBN:
978-0-7918-4890-6
PROCEEDINGS PAPER
Comparison of Two-Tank Indirect Thermal Storage Designs for Solar Parabolic Trough Power Plants
Joseph Kopp,
Joseph Kopp
University of Nevada, Las Vegas, Las Vegas, NV
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R. F. Boehm
R. F. Boehm
University of Nevada, Las Vegas, Las Vegas, NV
Search for other works by this author on:
Joseph Kopp
University of Nevada, Las Vegas, Las Vegas, NV
R. F. Boehm
University of Nevada, Las Vegas, Las Vegas, NV
Paper No:
ES2009-90369, pp. 683-688; 6 pages
Published Online:
September 29, 2010
Citation
Kopp, J, & Boehm, RF. "Comparison of Two-Tank Indirect Thermal Storage Designs for Solar Parabolic Trough Power Plants." Proceedings of the ASME 2009 3rd International Conference on Energy Sustainability collocated with the Heat Transfer and InterPACK09 Conferences. ASME 2009 3rd International Conference on Energy Sustainability, Volume 2. San Francisco, California, USA. July 19–23, 2009. pp. 683-688. ASME. https://doi.org/10.1115/ES2009-90369
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