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1. (WO2013160872) SOLAR POWER TOWER RECEIVER

Pub. No.:    WO/2013/160872    International Application No.:    PCT/IB2013/053287
Publication Date: Fri Nov 01 00:59:59 CET 2013 International Filing Date: Fri Apr 26 01:59:59 CEST 2013
IPC: F24J 2/04
F24J 2/10
F24J 2/24
F24J 2/07
Applicants: STELLENBOSCH UNIVERSITY
Inventors: KRETZSCHMAR, Holger
GAUCHÉ, Paul
Title: SOLAR POWER TOWER RECEIVER
Abstract:
A central receiver for a solar power facility is provided comprising an arrangement of heat absorber tubes located in a chamber having a window that, in use, is to receive solar radiation reflected by a heliostat field. The heat absorber tubes extend transversely relative to the window and are connected into a working fluid circuit. The window forms an atmospheric air inlet and the chamber has an outlet in a region opposite the window. An air flow promoting fan induces a flow of atmospheric air inwards through the window, past the absorber tubes; and through the outlet. The receiver preferably includes multiple rows of unpressurized louvers or panes having oblique frontal surfaces such that reflected rays travel into the chamber and provide a leading row in which the temperature of the louvers is, under operating conditions, maintained at a level low enough to reduce thermal reflection and radiation losses.