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2007 Parabolic Trough Technology Workshop

NREL hosted a parabolic trough technology workshop on March 8-9, 2007, in Golden, Colorado. It had three goals:

  • Exchanging technical information
  • Collaborating on SolarPaces projects: receiver testing and dry cooling
  • Gathering industry input on laboratory R&D directions.

The workshop featured presentations on the following parabolic trough power plant topics:

Researchers also presented a poster session on laboratory capabilities.

Note: if a presentation or poster isn't listed below, NREL hasn't yet received permission or approval to post it.

Some of the following documents are available as Adobe Acrobat PDFs. Download Adobe Reader.

Attendees List: (MS Word 197 KB)

Parabolic Trough 2007 Workshop - Introduction
Presentation: (PDF 1.4 MB)
Presenter/Author: Price, H. (NREL)

Current and Future Market Vision

A Utility's Perspective - Procuring Renewable Energy
Presentation Posted with Permission: (PDF 186 KB)
Presenter/Author: Agarwal, D. (Pacific Gas & Electric)

California Environmental Legislation 2006 & Beyond
Presentation Posted with Permission: (PDF 140 KB)
Presenter/Author: Beebe, B. (Sacramento Municipal Utility District)

Tackling Climate Change in the U.S. - Potential Carbon Emissions Reductions from Energy Efficiency and Renewable Energy by 2030
Presentation: (PDF 9.9 MB)
Presenter/Author: Kutscher, C. (NREL)

Trans-Mediterranean Interconnection for Concentrating Solar Power
Presentation Available from: German Aerospace Center (DLR)
Presenter: Price, H. (NREL)
Author: Trieb, F. (DLR)

TRANS-Concentrating Solar Power Study Applied to North America
Presentation: (PDF 452 KB)
Presenter/Author: Price, H. (NREL)

Also see our publications on parabolic trough market and economic assessment.

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Parabolic Trough Project Developments

From Research to Concentrating Solar Power Market Introduction - World Wide Progress and Advances of Trough Projects
Presentation Posted with Permission: (PDF 4.4 MB)
Presenter/Author: Geyer, M. (SolarPACES)

A Look at the U.S. Concentrating Solar Power Market
Presentation Posted with Permission: (PDF 990 KB)
Presenter/Author: Morse, F. (Morse & Associates)

A Master Plan to Meet California's Renewable Portfolio Standards Needs for Peaking Power - An Update of Work in Progress
Presentation Posted with Permission: (PDF 146 KB)
Presenter/Author: Aringhoff, R. (Solar Millennium LLC)

Andasol 1 & 2 - 50 MW, 7-hrs molten salt heat storage
Presentation Posted with Permission: (PDF 3.1 MB)
Presenter/Author: Martin, J. (SENER)

Also see our publications on parabolic trough research and development.

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Solar Resource Assessment

Solar Resource Data
Presentation: (PDF 4.2 MB)
Presenters/Authors: Stoffel, T.; George, R. (NREL)

How to Get Bankable Meteo Data: Solar Resource Assessment
Presentation Posted with Permission: (PDF 1.9 MB)
Presenter/Author: Pitz-Paal, R. (DLR)

Also see our publications and resources on parabolic trough solar data.

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Parabolic Trough Collector Overview
Presentation Posted with Permission: (PDF 1.8 MB)
Presenter/Author: Kearney, D. (Kearney & Associates)

Trough Thermal Storage - Status Spring 2007
Presentation Posted with Permission: (PDF 942 KB)
Presenter/Author: Nava, P. (FLAGSOL)
Other Author: Hermann, U.

Concrete Storage Development for Parabolic Trough Power Plants
Presentation Posted with Permission: (PDF 944 KB)
Presenter/Author: Laing, D. (DLR)

Water-Saving Heat Rejection for Solar Thermal Power Plants
Presentation Posted with Permission: (PDF 787 KB)
Presenter/Author: Dersch, J. (DLR)

Also see our publications on parabolic trough technology.

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Molten-Salt Heat Transfer Fluids

Nitrate and Nitrite/Nitrate Salt Heat Transport Fluids
Presentation Posted with Permission: (PDF 1.2 MB)
Presenter/Author: Kelly, B. (Nexant)
Other Authors: Barth, D. (FRIATEC); Brosseau, D. (Sandia); Konig, S. (Bertrams Heatec); Fabrizi, F. (ENEA)

Molten-Salt Thermal Energy Storage Development and Testing
Presentation Posted with Permission: (PDF 845 KB)
Presenter/Author: Brosseau, D. (Sandia)

High-Temperature Pumps for Concentrating Solar Power
Presentation Posted with Permission: (PDF 3.1 MB)
Presenter/Author: Barth, D. (FRIATEC)

Molten-Salt Systems Other Applications Link to Solar Power Plants
Presentation Posted with Permission: (PDF 6.6 MB)
Presenter/Author: Koning, S. (Bertrams)

Trough Molten-Salt HTF Field Test Experience - Experimental remarks on behavior during operation and thermal fluid dynamics in transition states of molten salt mixtures
Presentation Posted with Permission: (PDF 4 MB)
Presenter/Author: Fabrizi, F. (ENEA)

Also see our publications on molten-salt heat transfer fluid.

Direct Steam Generation

Overview on Direct Steam Generation and Experience at the Plataforma Solar de Almería
Presentation Posted with Permission: (PDF 866 KB)
Presenter/Author: Zarza, E. (CIEMAT)

Direct Solar Steam in Parabolic Troughs - Simulation of Dynamic Behavior
Presentation Posted with Permission: (PDF 766 KB)
Presenter/Author: Eck, M. (DLR)

Storage Development for Direct Steam Generation Power Plants
Presentation Posted with Permission: (PDF 1.5 MB)
Presenter/Author: Laing, D. (DLR)

Next Generation Receivers
Presentation Posted with Permission: (PDF 1.5 MB)
Presenter/Author: Benz, N. (Schott)

Also see our publications on parabolic trough direct steam generation.

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Advanced Tools and Testing Capabilities

Concentrator Testing
Presentation Posted with Permission: (PDF 1.9 MB)
Presenter/Author: Lüpfert, E. (DLR)

Current Status of TOP (Theoretical Overlay Photographic) Alignment
Presentation Posted with Permission: (PDF 641 KB)
Presenter/Author: Moss, T. (Sandia)
Other Author: Diver, R.

Parabolic Trough Receiver Thermal Performance
Presentation: (PDF 2.2 MB)
Presenter/Author: Price, H. (NREL)

Also see our publications on parabolic trough models and tools, as well as our data and resources for testing, modeling, and tools.

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Laboratory Capabilities Poster Session

Automatic Photogrammetric Qualification of Parabolic Trough Collectors
Poster Posted with Permission: (PDF 337 KB)
Authors: Pottler, K.; Röger, M.; Lüpfert, E. (DLR)

Measurement of Slope Deviations of Parabolic Trough Collectors by Image Analysis of the Reflected Absorber Tube
Poster Posted with Permission: (PDF 173 KB)
Authors: Ulmer, S.; Pottler, K.; Lüpfert, E. (DLR)

Testing Capabilities NSTTF (AZTRAK) Rotating Platform
Poster Posted with Permission: (PDF 548 KB)
Authors: Moss, T.; Brosseau, D. (Sandia)

NREL Concentrated Solar Mesa-Top Facilities
Poster: (PDF 2.3 MB)
Author: Bingham, C. (NREL)

Method Development for Dissolved Gas Analysis of Heat Transfer Fluids
Poster: (PDF 1 MB)
Authors: Wolfrum, E.; Peterson, D. (NREL)

Optical Durability of Candidate Solar Reflector Materials
Poster: (PDF 810 KB)
Authors: Kennedy, C.; Terwilliger, K.; Warrick, A. (NREL)

Parabolic Trough Receiver Heat Loss Testing
Poster: (PDF 354 KB)
Authors: Price, H.; Netter, J.; Bingham, C.; Kutscher, C. (NREL); and Burkholder, F.; Brandemuehl, M. (University of Colorado – Boulder)

Parabolic Trough Technology Development
Poster: (PDF 806 KB)
Authors: Price, H.; Mehos, M.; Kutscher, C. (NREL)

Optical Characterization of Concentrating Solar Power Technologies at NREL
Poster: (PDF 147 KB)
Author: Wendelin, T. (NREL)

Progress toward Developing a Durable High-Temperature Solar-Selective Coating
Poster: (PDF 766 KB)
Authors: Kennedy, C.; Price, H. (NREL)

Also see our resources for parabolic trough system and component testing.

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