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Research Papers

Annual Yield Analysis of Solar Tower Power Plants With GREENIUS

[+] Author and Article Information
Jürgen Dersch, Peter Schwarzbözl, Timo Richert

 German Aerospace Center Deutsches Zentrum für Luft- und Raumfahrt (DLR), Solar Research, 51147 Köln, Germanyjuergen.dersch@dlr.deFormer Diploma Thesis Student at Deutsches Zentrum für Luft- und Raumfahrt (DLR)  Deutsches Zentrum für Luft- und Raumfahrt (DLR), RWTH Aachen, 50678 Köln, Germanyjuergen.dersch@dlr.de

J. Sol. Energy Eng 133(3), 031017 (Jul 28, 2011) (9 pages) doi:10.1115/1.4004355 History: Received January 14, 2011; Accepted May 26, 2011; Published July 28, 2011; Online July 28, 2011

An existing software tool for annual performance calculation of concentrating solar power and other renewable energy plants has been extended to enable the simulation of solar tower power plants. The methodology used is shown and a demonstrative example of a 50 MWe tower plant in southern Spain is given. The influence of design power and latitude on solar field layout is discussed. Furthermore, a comparison of the tower plant with a 50 MWe parabolic trough and a Linear Fresnel plant at the same site is given.

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Copyright © 2011 by American Society of Mechanical Engineers
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References

Figures

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Figure 1

Model components and interfaces of a solar tower CSP plant as used in GREENIUS

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Figure 2

Tower height function and range used for the GREENIUS lookup table in comparison to existing and projected tower plants

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Figure 3

Sizes and shapes of optimized solar fields with different intercept power

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Figure 4

Shapes of optimized solar fields for different latitudes

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Figure 5

Influence of design intercept power (field size), sunheight and latitude on the solar field efficiency

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Figure 6

Detailed heat balance diagram of power block and receiver

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Figure 7

Part load performance of the power block

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Figure 8

Simulation results generated with GREENIUS for a 50 MWe solar tower plant with 7.5 h thermal storage capacity in southern Spain

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Figure 9

Comparison of the monthly heat outputs of a tower field and a south–north oriented parabolic trough solar field in southern Spain

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Figure 10

Comparison of the monthly net electrical outputs of a tower field and a south–north oriented parabolic trough solar field in southern Spain

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Figure 11

Comparison of the hourly outputs of a tower field and a south–north parabolic trough solar field in southern Spain

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Figure 12

Comparison of the monthly heat outputs of a tower field, an east–west oriented parabolic trough solar field, and a Linear Fresnel solar field in southern Spain

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