**About the Editors**

**Falah Alobaid** received his Ph.D. degree with the highest distinction from the Technical University of Darmstadt, Germany. His dissertation was awarded the energy special prize of the Technical University of Darmstadt in 2014. He has since been the research group leader at the Institute of Energy Systems and Technology at the Technical University of Darmstadt. In 2018, he received his habilitation degree in energy systems (habilitation lecture: Energy Storage Technologies) and then followed by the academic title "Privatdozent" in 2019. He has vast experience and a record of accomplishment in the field of the numerical simulation of energy systems and the associated engineering processes using one-dimensional dynamic process simulation and three-dimensional computational fluid dynamics.

**Jochen Str ¨ohle** took his Ph.D. degree in Mechanical Engineering from the University of Stuttgart, Germany. He has large experience in the field of power plant technology, particularly in solid fuel combustion/gasification processes and the related CO2 capture technologies, with key expertise in the modelling and simulation of multiphase flows and power plant processes, as well as experimental investigations in pilot-scale test facilities.
