Nolwenn Le Pierrès is a professor at the Université Savoie Mont Blanc, France. She also teaches Energy at the Polytech Annecy-Chambéry engineering school and is a researcher in the LOCIE laboratory at the Institut National de l’Energie Solaire.Lingai Luo is a CNRS research director who has developed an original research strategy for optimizing energy systems, using a multi-scale approach combined with an innovative fluid distribution optimization method.

• Foreword ixPhilippe MARTYChapter 1. Materials for Thermochemical and Sorption Heat Storage 1Kokouvi Edem N’TSOUKPOE1.1. Introduction 11.2. Definitions and key concepts 41.3. Material selection criteria and review of important characteristics for a thermochemical heat storage material 81.3.1. Selection and overview of key material properties by application 81.3.2. Important considerations about certain characteristics and selection criteria for thermochemical heat storage materials 101.4. Description of the thermodynamic equilibrium of sorption materials 151.4.1. The case of chemisorption 151.4.2. The case of physisorption 181.5. Overview of the main materials studied in the context of thermochemical energy storage 251.5.1. Sorbates 251.5.2. Sorption pairs 261.6. Introduction to the issue of heat and mass transfer in solid-gas storage materials 551.6.1. Kinetics of the adsorption phenomenon or solid-gas reaction 551.6.2. Improvements to the characteristics of thermochemical heat storage materials 601.7. Overview of material characterization for thermochemical heat storage applications 661.7.1. Determination of thermodynamic equilibrium conditions 661.7.2. Determination of enthalpies 741.8. References 77Chapter 2. Heat Storage Using Absorption Processes 95Nolwenn LE PIERRÈS2.1. Absorption processes: the principle 962.1.1. AHPs 962.1.2. Components of the one-stage AHP cycle 982.1.3. Operating conditions of AHPs 1002.2. Methods for storing heat by absorption 1032.2.1. Design of a system for storing heat by absorption 1032.2.2. Operating conditions 1082.2.3. Performance indicators 1112.3. Reactors 1142.3.1. Absorption reactors using tubes 1172.3.2. Absorption reactors using plates 1192.4. Intensified storage cycles 1202.4.1. Intensification through the crystallization of the solution 1212.4.2. Intensification through modifying the cycle: two-stage cycles 1242.5. Integration of absorption storage systems: case studies 1312.5.1. Integration of absorption heat storage systems in solar buildings 1322.5.2. Integration of absorption heat storage systems into a decentralized microgrid 1352.6. Conclusion 1372.7. References 138Chapter 3. Heat Storage Using Adsorption Processes 143Larysa RATEL, Kevyn JOHANNES and Frédéric KUZNIK3.1. Introduction 1433.2. Overview of heat storage by adsorption 1443.2.1. Principle of the operation of adsorption materials 1443.2.2. Classification of systems 1453.2.3. Integration of storage systems in buildings 1563.3. Existing prototypes of sorption heat storage 1603.3.1. Closed systems 1603.3.2. Open systems 1653.4. System performances: an analysis of the prototypes presented 1763.5. The influence of kinetics 1793.6. Real-scale systems 1823.7. Conclusion 1843.8. References 185Chapter 4. Heat Storage by Chemical Sorption Processes 195Antoine PERRIGOT, Driss STITOU and Maxime PERIER-MUZET4.1. Introduction 1954.2. History of chemical sorption systems 1964.3. Principles of the operation of thermochemical systems 1974.3.1. The phenomenon of chemical sorption and reagents 1984.3.2. Thermochemical reactor 2034.3.3. Typical method for thermochemical storage 2074.4. Advanced thermochemical processes 2194.4.1. Heat recovery cycles 2194.4.2. Mass recovery cycles 2214.4.3. Multi-effect thermochemical processes in thermal cascades 2214.4.4. Hybrid thermal/mechanical cycles 2224.5. Diversification of applications with storage 2234.5.1. Heating 2234.5.2. Production of cold 2254.5.3. Simultaneous cold/heat/work generation 2264.5.4. Integration with a microgrid 2274.6. Conclusion 2274.7. References 227List of Authors 233Index 235Summary of Volume 1 241