Concentrating solar systems

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Table of contents

GENERAL INTRODUCTION
I. Chapter 1 Background on concentrated solar energy, gasification and modelling
I.1 Introduction
I.2 Concentrated Solar Energy
I.2.1 Overview
I.2.2 CSP in the world
I.2.3 Concentrating solar systems
I.2.4 Performance metrics
I.3 Solar gasification
I.3.1 Reactor designs
I.3.2 Management of intermittency
I.3.3 Scale up
I.4 Spouted bed reactors
I.4.1 Hydrodynamics
I.4.2 Design
I.4.3 Pyrogasification reactors
I.5 Pyrogasification: modelling and simulation
I.5.1 Drying
I.5.2 Pyrolysis
I.5.3 Gasification
I.6 Conclusion and methodology
II. Chapter 2 Numerical and experimental study of a novel solar reactor for biomass gasification
II.1 Introduction
II.2 Allothermal operation
II.2.1 Principle and objectives
II.2.2 Experimental test bench
II.2.3 Time scales analysis
II.2.4 Model development
II.2.5 Experimental tests
II.2.6 Numerical study
II.3 Hybrid operation
II.3.1 Principle and objectives
II.3.2 Numerical study
II.3.3 Experimental study
II.4 Waste solar gasification
II.4.1 Principle and objectives
II.4.2 Experimental study
II.5 Conclusions
III. Chapter 3 Experimental and numerical investigation of inert bed materials effects in a high-temperature conical cavity-type reactor for continuous solar-driven steam gasification of biomass
III.1 Introduction
III.2 Bed materials
III.3 Modelling
III.3.1 Geometry, mesh and boundary conditions
III.3.2 Mathematical formulation
III.3.3 Numerical procedure
III.4 Results and discussion
III.4.1 Numerical study
III.4.2 Experimental study
III.4.3 Conclusions
IV. Chapter 4 Dynamic simulation and scale up study of a hybrid solar gasifier for biomass steam gasification
IV.1 Introduction
IV.2 Model development
IV.2.1 General principle
IV.2.2 Model parameters
IV.2.3 Mathematical model formulation
IV.3 Results and discussion
IV.3.1 Model validation at 1.5 kWthermal scale
IV.3.2 Large-scale reactor simulation
IV.3.3 Annual simulation
IV.4 Conclusion
V. Chapter 5 Large-scale hydrogen production from solar-driven steam gasification of biomass: a technoeconomic study
V.1 Introduction
V.2 Solar hydrogen cost model
V.2.1 General principle
V.2.2 Model assumptions
V.2.3 Design parameters
V.3 Results and discussion
V.3.1 Cost assessment
V.3.2 Comparison with other hydrogen production methods
V.4 Conclusion
CONCLUSION & PERSPECTIVES
REFERENCES
VI. ANNEX 1
VI.1 Comparison between REACSOL design and literature recommendations
VI.2 Time scale characteristics
VI.2.1 Fluid dynamics
VI.2.2 Thermochemistry
VI.3 Patent applications
VI.3.1 Heat exchange intensification
VI.3.2 Melting ash continuous evacuation
VII. ANNEX 2
VII.1 Bed materials hydrodynamic simulations
VII.2 Chemical equilibrium model for 0D simulations
VII.2.1 Optimization problem formulation
VII.2.2 Validation