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Parabolic trough receiver heat loss and optical efficiency round robin

 
: Pernpeintner, J.; Schiricke, B.; Sallaberry, F.; Jalon, A.G. de; López-Martín, R.; Valenzuela, L.; Luca, A. de; Georg, A.

:

Al Obaidli, A. ; American Institute of Physics -AIP-, New York:
22nd SOLARPACES 2016, International Conference on Concentrating Solar Power and Chemical Energy Systems. Proceedings : 11-14 October 2016, Abu Dhabi, United Arab Emirates
New York, N.Y.: AIP Press, 2017 (AIP Conference Proceedings 1850)
ISBN: 978-0-7354-1522-5
Art. 020012, 12 pp.
International Conference on Concentrating Solar Power and Chemical Energy Systems (SolarPACES) <22, 2016, Abu Dhabi>
English
Conference Paper
Fraunhofer ISE ()
Solarthermie und Optik; Solarthermie; Thermische Kollektoren und Komponenten; trough receiver; loss; robin

Abstract
A round robin for parabolic trough receiver heat loss and optical efficiency in the laboratory was performed between five institutions using five receivers in 2015/2016. Heat loss testing was performed at three cartridge heater test benches and one Joule heating test bench in the temperature range between 100 °C and 550 °C. Optical efficiency testing was performed with two spectrometric test bench and one calorimetric test bench. Heat loss testing results showed standard deviations at the order of 6% to 12 % for most temperatures and receivers and a standard deviation of 17 % for one receiver at 100 °C. Optical efficiency is presented normalized for laboratories showing standard deviations of 0.3 % to 1.3 % depending on the receiver.

: http://publica.fraunhofer.de/documents/N-458926.html