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TECHNICAL PAPERS

Testing of Thermocline Filler Materials and Molten-Salt Heat Transfer Fluids for Thermal Energy Storage Systems in Parabolic Trough Power Plants

[+] Author and Article Information
Doug Brosseau, John W. Kelton, Daniel Ray, Mike Edgar, Kye Chisman, Blaine Emms

Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185

J. Sol. Energy Eng 127(1), 109-116 (Feb 07, 2005) (8 pages) doi:10.1115/1.1824107 History: Received April 28, 2004; Revised May 10, 2004; Online February 07, 2005
Copyright © 2005 by ASME
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References

Kearney and Associates, 2001, “Engineering Evaluation of a Molten Salt HTF in a Parabolic Trough Solar Field,” NREL Contract No. NAA-1-30441-04, (dates vary).
USA Trough Initiative, 2000, “Task 2 Report: Thermal Storage for Rankine Cycle Power Plants,” Nexant LLC under Task Order Authorization Number KAF-9-29765-09, San Francisco, California, February 8.
Kearney, D., et al., 2000, “Evaluation of a Molten Salt Heat Transfer Fluid in a Parabolic Trough Solar Field,” draft paper for Solar 2002 Proceedings, June.
Price,  H. , 2002, “Advances in Parabolic Trough Solar Power Technology,” ASME J. Solar Energy Eng., Special Issue: Solar Thermal Power, 124(2), pp. 109–125.
Kearney and Associates, 2001, “Engineering Evaluation of a Molten Salt HTF in a Parabolic Trough Solar Field, Task 6 Report: Final System Performance and Cost Comparisons,” NREL Contract No. NAA-1-30441-04, August 20.
Pacheco,  J., Showalter,  S., and Kolb,  W., 2002, “Development of a Molten-Salt Thermocline Thermal Storage System for Parabolic Trough Plants,” ASME J. Solar Energy Eng., Special Issue: Solar Thermal Power, 124(2), pp. 153–159.
Bradshaw, R. W., and Tyner, C. E., 1988, “Chemical and Engineering Factors Affecting Solar Central Receiver Applications of Ternary Molten Salts,” SAND88-8686, Sandia National Laboratories, Albuquerque, New Mexico, July.
Bradshaw, R. W., and Meeker, D. E., 1989, “Chemical Equilibria of Molten Ternary Nitrate Salt Mixtures,” SAND88-8845, Sandia National Laboratories, Albuquerque, New Mexico, May.
Thermocline Storage Filler Material Thermal Cycling Test Plan, Sandia National Laboratories, May 2002.

Figures

Grahic Jump Location
Thermal cycle apparatus insulated
Grahic Jump Location
Test chamber and valving
Grahic Jump Location
Chromium concentration at 450°C
Grahic Jump Location
Chromium concentration at 500°C
Grahic Jump Location
Crust top of Zone 5 isothermal pot
Grahic Jump Location
Isothermal rock weight change
Grahic Jump Location
Isothermal sand weight change
Grahic Jump Location
Backscatter picture of typical control sand
Grahic Jump Location
Backscatter picture of Zone 2 sand

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