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TECHNICAL PAPERS

The DISS Project: Direct Steam Generation in Parabolic Trough Systems. Operation and Maintenance Experience and Update on Project Status

[+] Author and Article Information
Eduardo Zarza, Loreto Valenzuela, Javier León

CIEMAT-Plataforma Solar de Almerı́a, Apartado 22, Tabernas E-04200 Almerı́a, Spain

H.-Dieter Weyers, Martin Eickhoff

DLR-Plataforma Solar de Almerı́a, Apartado 39, Tabernas E-04200 Almerı́a, Spain

Markus Eck

Institut für Technische Thermodynamik-DLR, Pfaffenwaldring 38-40, D-70569 Stuttgart, Germanye-mail: markus.eck@dlr.de

Klaus Hennecke

Solare Energietechnik-DLR, D-51170 Köln, Germanye-mail: klaus.hennecke@dlr.de

J. Sol. Energy Eng 124(2), 126-133 (Apr 24, 2002) (8 pages) doi:10.1115/1.1467645 History: Received November 01, 2000; Revised July 01, 2001; Online April 24, 2002
Copyright © 2002 by ASME
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References

Figures

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Schematic diagram of the PSA DISS test facility
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Thermocouple installation in a test cross section
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Three basic DSG processes: once-through (top), injection (center), and recirculation (bottom)
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View of the PSA DISS solar field in operation
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Positioning errors that would be produced by deviation in the North-South alignment of the DISS collector row, latitude, and longitude of the PSA site
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Operation at 60 bar in recirculation mode on June 20, 2000
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Test Cross-Section thermocouple layout
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Control scheme for the recirculation process
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Operation in recirculation mode on June 22, 2000 with outlet temperature control from 12:45 to 18:30; Outlet pressure control and secondary controllers in automatic mode (recirculation rate=2)
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Once-through process control scheme
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One of the ball joints installed at the DISS collectors

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