Journal
SOLAR ENERGY
Volume 139, Issue -, Pages 179-189Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.solener.2016.08.047
Keywords
Flux density measurement; Receiver input power; Central receiver system; Solar tower; Solar hybrid gas turbine
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Funding
- European Commission under the 7th Framework Program [TREN/FP7EN/219110/SOLUGAS]
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This paper describes a method for the efficiency determination of a cavity receiver using the example of the solar hybrid gas turbine system SOLUGAS. Major focus is given on the improvement of a new approach of the solar flux density determination based on a measurement-supported simulation technique where an acceptable uncertainty of the solar input power of -1.3%...+6.3% is achieved. For the thermal evaluation an uncertainty of 2.4% is determined that leads to an overall uncertainty of the thermal receiver efficiency of -2.8%...+7.7%. Detailed uncertainty propagation is presented and conclusions discussed. (C) 2016 Elsevier Ltd. All rights reserved.
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