Numéro
J. Phys. IV France
Volume 09, Numéro PR3, March 1999
Proceedings of the 9th SolarPACES International Symposium on Solar Thermal Concentrating Technologies
STCT 9
Page(s) Pr3-379 - Pr3-383
DOI https://doi.org/10.1051/jp4:1999359
Proceedings of the 9th SolarPACES International Symposium on Solar Thermal Concentrating Technologies
STCT 9

J. Phys. IV France 09 (1999) Pr3-379-Pr3-383

DOI: 10.1051/jp4:1999359

New developments using holographic concentration in solar photochemical reactors

J. Ortner1, D. Faust1, K.-H. Funken1, T. Lindner1, J. Schulat2, C.G. Stojanoff2 and P. Fröning3

1  Deutsches Zentrum für Luft- und Raumfahrt e.V., Solare Energietechnik, 51170 Köln, Germany
2  RWTH Aachen, Lehr- und Forschungsgebiet Hochtemperaturthermodynamik, Jägerstrasse 17-19, 52056 Aachen, Germany
3  Now at : Universität Stuttgart, Institut für Technische Optik, Pfaffenwaldring 9, 70569 Stuttgart, Germany.


Abstract
This paper presents test results achieving on (20 cm x 50 cm) cylindrical holographic mirrors being recorded in dichromated gelatin for use in solar chemistry applications. The realized spectral reflectivity range 480 - 620 nm is adapted to the sensitizer Rose Bengal which is the sensitizer frequently used in photo-oxidation reactions. Aluminum mirrors and holographic elements were used as reflecting elements in a lab-scale parabolic trough reactor. The effect of the different elements on the heat transfer into the reaction was compared.



© EDP Sciences 1999