Fossil Fuels Coal, Lignite, And Peat

Solar Thermal Reactor Materials Characterization

Authors: Lichty, P. R. Scott, A. M. Perkins, C. M. Bingham, C. Weimer, A. W.
 
Abstract: Current research into hydrogen production through high temperature metal oxide water splitting cycles has created a need for robust high temperature materials. Such cycles are further enhanced by the use of concentrated solar energy as a power source. However, samples subjected to concentrated solar radiation exhibited lifetimes much shorter than expected. Characterization of the power and flux distributions representative of the High Flux Solar Furnace(HFSF) at the National Renewable Energy Laboratory(NREL) were compared to ray trace modeling of the facility. In addition, samples of candidate reactor materials were thermally cycled at the HFSF and tensile failure testing was performed to quantify material degradation. Thermal cycling tests have been completed on super alloy Haynes 214 samples and results indicate that maximum temperature plays a significant role in reduction of strength. The number of cycles was too small to establish long term failure trends for this material due to the high ductility of the material.
Publication Date: 01 Mar 2008
DOE Contract number: AC36-99-GO10337
Resource Type: Conference
Resource Relation: Conference: 2008 14th Biennial CSP SolarPACES (Solar Power and Chemical Energy Systems) Symposium, 4-7 March 2008, Las Vegas, Nevada (CD-ROM) (NREL/CD-550-42709)
Research Organizations: National Renewable Energy Laboratory (NREL), Golden, CO.
Sponsoring Organizations: USDOE
Country of Publication: United States
Language: English
Keywords relating to this report:
ALLOYS
DUCTILITY
ENERGY SYSTEMS
HYDROGEN PRODUCTION
OXIDES
REACTOR MATERIALS
SIMULATION
SOLAR ENERGY
SOLAR RADIATION
TESTING
THERMAL CYCLING
THERMAL REACTORS
WATER

Subjects:
Related subjects:
CONCENTRATING SOLAR POWER
SOLAR ENERGY - THERMAL
SOLARPACES 2008