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Title: Molten salt power towers operating at 600–650 °C: Salt selection and cost benefits

Abstract

This analysis examines the potential benefit of adopting the supercritical carbon dioxide (sCO 2) Brayton cycle at 600-650 degrees C compared to the current state-of-the-art power tower operating a steam-Rankine cycle with solar salt at approximately 574 degrees C. The analysis compares a molten-salt power tower configuration using direct storage of solar salt (60:40 wt% sodium nitrate: potassium nitrate) or single-component nitrate salts at 600 degrees C or alternative carbonate- or chloride-based salts at 650 degrees C.

Authors:
 [1];  [1];  [2]
  1. National Renewable Energy Lab. (NREL), Golden, CO (United States)
  2. ManTech International, Washington, DC (United States)
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Solar Energy Technologies Office (EE-4S)
OSTI Identifier:
1429606
Report Number(s):
NREL/JA-5500-69070
Journal ID: ISSN 0038-092X
Grant/Contract Number:  
AC36-08GO28308
Resource Type:
Accepted Manuscript
Journal Name:
Solar Energy
Additional Journal Information:
Journal Volume: 164; Journal Issue: C; Journal ID: ISSN 0038-092X
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 47 OTHER INSTRUMENTATION; molten salt; concentrating solar power; supercritical CO2 Brayton cycle

Citation Formats

Turchi, Craig S., Vidal, Judith, and Bauer, Matthew. Molten salt power towers operating at 600–650 °C: Salt selection and cost benefits. United States: N. p., 2018. Web. doi:10.1016/j.solener.2018.01.063.
Turchi, Craig S., Vidal, Judith, & Bauer, Matthew. Molten salt power towers operating at 600–650 °C: Salt selection and cost benefits. United States. doi:10.1016/j.solener.2018.01.063.
Turchi, Craig S., Vidal, Judith, and Bauer, Matthew. Wed . "Molten salt power towers operating at 600–650 °C: Salt selection and cost benefits". United States. doi:10.1016/j.solener.2018.01.063. https://www.osti.gov/servlets/purl/1429606.
@article{osti_1429606,
title = {Molten salt power towers operating at 600–650 °C: Salt selection and cost benefits},
author = {Turchi, Craig S. and Vidal, Judith and Bauer, Matthew},
abstractNote = {This analysis examines the potential benefit of adopting the supercritical carbon dioxide (sCO2) Brayton cycle at 600-650 degrees C compared to the current state-of-the-art power tower operating a steam-Rankine cycle with solar salt at approximately 574 degrees C. The analysis compares a molten-salt power tower configuration using direct storage of solar salt (60:40 wt% sodium nitrate: potassium nitrate) or single-component nitrate salts at 600 degrees C or alternative carbonate- or chloride-based salts at 650 degrees C.},
doi = {10.1016/j.solener.2018.01.063},
journal = {Solar Energy},
number = C,
volume = 164,
place = {United States},
year = {2018},
month = {3}
}

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Cited by: 19 works
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Works referencing / citing this record:

Review of supercritical CO 2 power cycles integrated with CSP
journal, December 2019

  • Yin, Jun‐Ming; Zheng, Qiu‐Yun; Peng, Zhao‐Rui
  • International Journal of Energy Research
  • DOI: 10.1002/er.4909

Thermal Conductivity of Molten Carbonates with Dispersed Solid Oxide from Differential Scanning Calorimetry
journal, May 2019

  • Kandhasamy, Sathiyaraj; Støre, Anne; Haarberg, Geir Martin
  • Materials, Vol. 12, Issue 9
  • DOI: 10.3390/ma12091486

Review of supercritical CO 2 power cycles integrated with CSP
journal, December 2019

  • Yin, Jun‐Ming; Zheng, Qiu‐Yun; Peng, Zhao‐Rui
  • International Journal of Energy Research
  • DOI: 10.1002/er.4909

Thermal Conductivity of Molten Carbonates with Dispersed Solid Oxide from Differential Scanning Calorimetry
journal, May 2019

  • Kandhasamy, Sathiyaraj; Støre, Anne; Haarberg, Geir Martin
  • Materials, Vol. 12, Issue 9
  • DOI: 10.3390/ma12091486