Fluidized-Bed Technology Enabling the Integration of High Temperature Solar Receiver CSP Systems with Steam and Advanced Power Cycles

Zhiwen Ma, B. Sakadjian, S. Hu, M. Maryamchik, T. Flynn, K. Santelmann

Research output: Contribution to journalArticlepeer-review

25 Scopus Citations


Solar Particle Receivers (SPR) are under development to drive concentrating solar plants (CSP) towards higher operating temperatures to support higher efficiency power conversion cycles. The novel high temperature SPR-based CSP system uses solid particles as the heat transfer medium (HTM) in place of the more conventional fluids such as molten salt or steam used in current state-of-the-art CSP plants. The solar particle receiver (SPR) is designed to heat the HTM to temperatures of 800°C or higher which is well above the operating temperatures of nitrate-based molten salt thermal energy storage (TES) systems. The solid particles also help overcome some of the other challenges associated with molten salt-based systems such as freezing, instability and degradation. The higher operating temperatures and use of low cost HTM and higher efficiency power cycles are geared towards reducing costs associated with CSP systems. This paper describes the SPR-based CSP system with a focus on the fluidized-bed (FB) heat exchanger and its integration with various power cycles. The SPR technology provides a potential pathway to achieving the levelized cost of electricity (LCOE) target of $0.06/kWh that has been set by the U.S. Department of Energy's SunShot initiative.

Original languageAmerican English
Pages (from-to)1404-1411
Number of pages8
JournalEnergy Procedia
StatePublished - 2015
EventInternational Conference on Concentrating Solar Power and Chemical Energy Systems, SolarPACES 2014 - Beijing, China
Duration: 16 Sep 201419 Sep 2014

Bibliographical note

Publisher Copyright:
© 2015 Published by Elsevier Ltd.

NREL Publication Number

  • NREL/JA-5500-64041


  • concentrating solar power (CSP)
  • fluidized bed
  • heat exchanger
  • high efficiency
  • high temperatures
  • renewable energy (RE)
  • solar particle receiver
  • solid particles


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