Development of a Concentrating Solar Power System Using Fluidized-Bed Technology for Thermal Energy Conversion and Solid Particles for Thermal Energy Storage

Zhiwen Ma, Mark Mehos, Gregory Glatzmaier, B. Sakadjian

Research output: Contribution to journalArticlepeer-review

51 Scopus Citations

Abstract

Concentrating solar power (CSP) is an effective way to convert solar energy into electricity with an economic energy-storage capability for grid-scale, dispatchable renewable power generation. However, CSP plants need to reduce costs to be competitive with other power generation methods. Two ways to reduce CSP cost are to increase solar-to-electric efficiency by supporting a high-efficiency power conversion system, and to use low-cost materials in the system. The current nitrate-based molten-salt systems have limited potential for cost reduction and improved power-conversion efficiencywith high operating temperatures. Even with significant improvements in operating performance, these systems face challenges in satisfying the cost and performance targets. This paper introduces a novel CSP system with high-temperature capability that can be integrated into a high-efficiency CSP plant and that meets the low-cost, high-performance CSP targets. Unlike a conventional salt-based CSP plant, this design uses gas/solid, two-phase flow as the heat-transfer fluid (HTF); separated solid particles as storage media; and stable, inexpensive materials for the high-temperature receiver and energy storage containment. We highlightthe economic and performance benefits of this innovative CSP system design, whichhas thermal energy storage capability for base-load power generation.

Original languageAmerican English
Pages (from-to)1349-1359
Number of pages11
JournalEnergy Procedia
Volume69
DOIs
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 The Authors. Published by Elsevier Ltd.

NREL Publication Number

  • NREL/JA-5500-62799

Keywords

  • Concentrating Solar Power
  • Gas/Solid Two-Phase Flow
  • Heat Transfer Fluid
  • Solar Receiver

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