This book covers a number of topics in heat and mass transfer processes for a variety of industrial applications. The research papers provide information and guidelines in terms of theory, mathematical modeling and experimental findings in many research areas relevant to the design of industrial processes and equipment. The equipment includes air heaters, cooling towers, chemical system vaporization, high temperature polymerization and hydrogen production by steam reforming. Nine chapters of the book will serve as an important reference for scientists and academics working in research areas mentioned above, at least in the aspects of heat and/or mass transfer, analytical/numerical solutions and optimization of the processes