...Copyright © 2003 by ASME 1 Proceedings of ISEC 2003 2003 International Solar Energy Conference Hawaii, USA, 15-18 March 2003 ISEC2003-44020 EXPERIMENTAL INVESTIGATION OF THE SOLAR CARBOTHERMIC REDUCTION OF ZnO USING A TWO-CAVITY SOLAR REACTOR T. Osingaa, U. Frommherzb, A. Steinfelda,b, C. Wieckerta...

... 05 01 2009 Two hybrid solar/fossil-fuel endothermic processes, in which fossil fuels are used exclusively as the chemical source for H 2 production, and solar energy as the source of high temperature process heat, are considered: 1) the solar thermal decomposition; and 2) the solar...

... 15 10 2008 A very promising method for the conversion and storage of solar energy into a fuel is the dissociation of water to oxygen and hydrogen, carried out via a two-step process using metal oxide redox systems such as mixed iron oxides, coated upon multi-channeled honeycomb ceramic...

... of the cylindrical sink. Correlations predicted with the model for the transient Nusselt number and the dimensionless volume averaged tank temperature expressed in terms of the initial Rayleigh number compare favorably to prior measured data. integral collector storage solar natural convection heat...

... 07 10 2008 The counter-rotating-ring receiver/reactor/recuperator (CR5) solar thermochemical heat engine is a new concept for production of hydrogen that allows for thermal recuperation between solids in an efficient counter-current arrangement. At the heart of the CR5 system...

... 07 10 2008 A comparative analysis of the performances of three outdoor swimming pools for private use with different types of covers is presented in this paper. They are designed to take advantage of solar irradiation to maintain the swimming pool temperature within certain acceptable...

.... With this in mind, we have invented innovative design concepts for two-step solar-driven thermochemical heat engines based on iron oxide and iron oxide mixed with other metal oxides (ferrites). These concepts utilize two sets of moving beds of ferrite reactant material in close proximity and moving in opposite...