Fluidized-bed technology enabling the integration of high temperature solar receiver CSP systems with steam and advanced power cycles

Journal Article · Fri Jun 05 00:00:00 EDT 2015 · Energy Procedia (Online)

DOI:https://doi.org/10.1016/j.egypro.2015.03.126· OSTI ID:1215203

Sakadjian, B. ^[1]; Hu, S. ^[1]; Maryamchik, M. ^[1]; Flynn, T. ^[1]; Santelmann, K. ^[1]; Ma, Z. ^[2]

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1. Babcock & Wilcox Power Generation Group, Inc., Barberton, OH (United States)
2. National Renewable Energy Laboratory (NREL), Golden, CO (United States)

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. Furthermore, 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.

• Research Organization: National Renewable Energy Laboratory (NREL), Golden, CO (United States)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office
• Grant/Contract Number: AC36-08GO28308
• OSTI ID: 1215203
• Report Number(s): NREL/JA-5500-64041
• Journal Information: Energy Procedia (Online), Vol. 69, Issue C; Related Information: Energy Procedia; ISSN 1876-6102
• Publisher: Elsevier
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
47 OTHER INSTRUMENTATION
concentrating solar power (CSP)
solar particle receiver
fluidized bed
heat exchanger
solid particles
high temperatures
high efficiency
renewable energy (RE)