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Institute
- Solar-Institut Jülich (339) (remove)
This chapter introduces performance and acceptance testing and describes state-of-the-art tools, methods, and instruments to assess the plant performance or realize plant acceptance testing. The status of the development of standards for performance assessment is given.
Speicher statt Kohle. Integration thermischer Stromspeicher in vorhandene Kraftwerksstandorte
(2019)
Solar tower power plants
(2008)
Simulationsprogramme in der Solarenergie-Ausbildung / Blum, K. ; Göttsche, J. ; Schumacher, J.
(1994)
Simulation model for the transient process behaviour of solar aluminium recycling in a rotary kiln
(2015)
Large scale central receiver systems typically deploy between thousands to more than a hundred thousand heliostats. During solar operation, each heliostat is aligned individually in such a way that the overall surface normal bisects the angle between the sun’s position and the aim point coordinate on the receiver. Due to various tracking error sources, achieving accurate alignment ≤1 mrad for all the heliostats with respect to the aim points on the receiver without a calibration system can be regarded as unrealistic. Therefore, a calibration system is necessary not only to improve the aiming accuracy for achieving desired flux distributions but also to reduce or eliminate spillage. An overview of current larger-scale central receiver systems (CRS), tracking error sources and the basic requirements of an ideal calibration system is presented. Leading up to the main topic, a description of general and specific terms on the topics heliostat calibration and tracking control clarifies the terminology used in this work. Various figures illustrate the signal flows along various typical components as well as the corresponding monitoring or measuring devices that indicate or measure along the signal (or effect) chain. The numerous calibration systems are described in detail and classified in groups. Two tables allow the juxtaposition of the calibration methods for a better comparison. In an assessment, the advantages and disadvantages of individual calibration methods are presented.
Retrofitting of existing parabolic trough collector power plants with molten salt tower systems
(2018)
Regenerative Energieträger
(1998)
Regenerative Energiequellen
(1986)
Regenerative Energiequellen
(1987)
Regenerative Energiequellen
(1980)
Regenerative Energiequellen
(1977)
Regenerative Energiequellen
(1991)
Regenerative Energiequellen
(1989)
Regenerative Energiequellen
(1988)
Regenerative Energiequellen
(1990)
Regenerative Energiequellen
(1994)
Regenerative Energiequellen
(1993)
Regenerative Energiequellen
(1995)
Regenerative Energiequellen
(1996)
Regenerative Energiequellen
(1997)
Regenerative Energiequellen
(1998)
Regenerative Energiequellen
(1994)
Regenerative Energiequellen
(1982)
Regenerative Energiequellen
(1981)
Regenerative Energiequellen
(1979)
Regenerative Energiequellen
(1978)
Regenerative Energiequellen
(1988)
Regenerative Energiequellen
(1985)
Regenerative Energiequellen
(1984)
Regenerative Energiequellen
(1983)
PV-transmitter and receiver
(1992)
In co-operation with the German Aerospace Center, the Solar-Institut Jülich has been analyzing the different technologies that are available for methanol production from CO2 using solar energy. The aim of the project is to extract CO2 from industrial exhaust gases or directly from the atmosphere to recycle it by use of solar energy. Part of the study was the modeling and simulating of a methane reformer for the production of synthesis gas, which can be operated by solar or hybrid heat sources. The reformer has been simplified in such a way that the model is accurate and enables fast calculations. The developed pseudo-homogeneous one- dimensional model can be regarded as a kind of counter-current heat exchanger and is able to incorporate a steam reforming reaction as well as a dry reforming reaction.