Thermofluids in Sustainable Energy Systems: Fundamentals and Applications is an essential reference that delves into the intricate realm of energy conversion, thermal science, and thermofluids, with a focus on sustainable energy systems. This book offers a comprehensive understanding of fundamental principles, up-to-date applications, and emerging innovations in the field of thermofluids, effectively bridging the gap between theory and practice. It aims to deliver a practical reference on thermodynamics, fluid mechanics, and heat transfer in sustainable energy systems. It equip readers, including students, researchers, engineers, and professionals, with a consolidated knowledge base that merges fundamental principles with practical applications, equipping them to address real-world challenges in energy conversion, thermal management, and energy-efficient solutions. This book addresses the problem of scattered and fragmented information by providing a unified, contemporary resource on thermofluids in sustainable energy systems. It offers readers an in-depth understanding of thermofluid phenomena in energy conversion and their application in various sustainable energy technologies. By unraveling the fundamental principles, challenges, and innovations in the field, the book provides readers the necessary knowledge and skills to contribute to the development and implementation of sustainable energy solutions.