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Modeling and Optimization of a High Temperature Solar Reactor. Edition No. 1
VDM Publishing House, November 2008, Pages: 100
A solar reactor consisting of a cavity-receiver
containing an array of tubular absorbers is
considered for the high temperature step of the
zinc/zinc oxide thermochemical redox cycle using
concentrated solar energy.
The reactor is dimensioned, analyzed and optimized
with the aim of maximizing efficiency and reaction
2D and 3D simulations of an 8kW reactor are
implemented. Temperature distribution, reaction
efficiency, tube efficiency and reaction conversion
are analyzed to find the most promising reactor design.
Additionally, basic knowledge in state of the art
concentrating solar technology, design of
experiments, radiative heat transfer, Mie theory,
diffusion, reaction kinetics and in how to approach
modeling tasks is given.
The results of the optimization study show that the
most significant factors are the concentration of the
solar incoming radiation, the zinc oxide mass flow,
the number of absorber tubes and their dimensions.
MSc ETH ME Sophia Haussener, born 1983, studied at Swiss Federal
Institute of Technology Zurich and at University of Colorado at
Boulder (USA) mechanical engineering with focus in
micro/nanosystems and renewable energies. She started her PhD
studies at Swiss Federal Institute of Technology (ETH) in 2007.