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Since conventional cooling techniques are increasing falling short of meeting the ever-growing cooling demands of high heat generating devices, thermal systems, and processes, advanced and innovative cooling technologies are of immense importance to deal with such high thermal management. Hence, this book covers a number of key topics related to advanced cooling approaches, their performance, and applications, including: Evaporative air cooling; Spray impingement cooling; Heat pump-based cooling; Modular cooling for photovoltaic plant; Nucleate pool boiling of refrigerants; Transient flashing spray cooling and application; Compressor cooling systems for industry. The book is aimed at a wide variety of people from graduate students and researchers to manufacturers who are involved or interested in the areas of thermal management systems, cooling technologies, and their applications.

Physical Sciences, Engineering and Technology --- Engineering --- Energy Engineering --- Thermal Engineering

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The book Advanced Path Planning for Mobile Entities provides a platform for practicing researchers, academics, PhD students, and other scientists to design, analyze, evaluate, process, and implement diversiform issues of path planning, including algorithms for multipath and mobile planning and path planning for mobile robots. The nine chapters of the book demonstrate capabilities of advanced path planning for mobile entities to solve scientific and engineering problems with varied degree of complexity.

Physical Sciences, Engineering and Technology --- Robotics --- Robotic Mapping --- Motion Planning

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Heat exchangers are important devices for engineering, research, and industry. Because of this, any improvement helps to optimize the whole process. Opportunity areas may be found in design, materials, or working fluids. In this sense, the present book compiles some advances in the matter of design (three chapters) and working fluids (one chapter). An introductory chapter also is presented.

Physical Sciences, Engineering and Technology --- Engineering --- Mechanical Engineering --- Thermal Engineering

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Among energy sources, hydrogen gas is clean and renewable and has the potential to solve the growing energy crisis in today's society because of its high-energy density and noncarbon fuel properties. It is also used for many potential applications in nonpolluting vehicles, fuel cells, home heating systems, and aircraft. In addition, using hydrogen as an energy carrier is a long-term option to reduce carbon dioxide emissions worldwide by obtaining high-value hydrocarbons through the hydrogenation of carbon dioxide. This book presents the recent progresses and developments in water-splitting processes as well as other hydrogen generation technologies with challenges and future perspectives from the point of energy sustainability.

Life Sciences --- Environmental Sciences --- Sustainable Energy --- Bioenergy

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Modern dynamics was established many centuries ago by Galileo and Newton before the beginning of the industrial era. Presently, we are in the presence of the fourth industrial revolution, and mechanical systems are increasingly being integrated with electronic, electrical, and fluidic systems. This trend is present not only in the industrial environment, which will soon be characterized by the cyber-physical systems of industry 4.0, but also in other environments like mobility, health and bio-engineering, food and natural resources, safety, and sustainable living. In this context, purely mechanical systems with quasi-static behavior will become less common and the state-of-the-art will soon be represented by integrated mechanical systems, which need accurate dynamic models to predict their behavior. Therefore, mechanical system dynamics are going to play an increasingly central role. Significant research efforts are needed to improve the identification of the mechanical properties of systems in order to develop models that take non-linearity into account, and to develop efficient simulation tools. This Special Issue aims at disseminating the latest research achievements, findings, and ideas in mechanical systems dynamics, with particular emphasis on applications that are strongly integrated with other systems and require a multi-physical approach.

dynamics --- mesh stiffness --- forced response --- time-variant parameters --- Method of Multiple Time-Scales --- cyclic-symmetric systems dynamics --- lumped parameters model --- quadruped robots --- high-speed locomotion --- leg trajectory planning --- trot gait --- motion capture sensor --- low-speed stability --- balancing --- motorcycle dynamics --- rider control --- unsteady flow control --- vortex dynamics --- separation flow --- Detached-Eddy Simulation --- natural motion --- natural dynamics --- energy saving --- robotic system --- trajectory planning --- optimization --- landing gear --- emergency extension --- reliability sensitivity analysis --- driving mechanism --- mixture of models --- damper force --- pitch angle --- seeder dynamics --- simulation model --- reaching law --- sliding mode control (SMC) --- ground-based laser communication turntable --- chatter-free --- quasi-sliding mode domain (QSMD) --- under-platform damper --- bladed disc’s rotation --- compositive motion --- relative displacement --- dynamical characteristic --- variable compression ratio --- adjustable hydraulic volume --- mathematical model --- dynamic characteristics --- simulation --- switched reluctance motor --- vibration prediction --- multi-physics modelling --- personal mobility vehicle --- active tilting --- inner wheel lifting --- obstacle avoidance --- energy efficiency --- n/a