This book offers a comprehensive overview of the latest technological advancements in heat exchangers, providing valuable insights for researchers, engineers, and students in related fields. It investigates the latest developments and practical applications across various sectors, depicting both foundational concepts and emerging trends. The book is structured into three sections: "Phase-Change Material (PCM) Heat Exchangers", "Modeling Methodologies", and "Material Thermodynamics". In Section 1, two chapters explore the principles and applications of PCMs, focusing on their role in enhancing thermal management and energy storage. In Section 2, three chapters provide an extensive review of the evolution of different heat exchanger designs and modeling methodologies, highlighting innovation-aided performance improvements. In Section 3, the final chapter investigates the practical aspects of heat transfer in thermal materials, emphasizing optimization techniques and real-world applications. Edited by Peixin Dong, a recognized expert from Hong Kong ITF-Talent Hub 2024, and Xin Sui, a senior researcher/engineer, this book serves as an essential resource for anyone involved in studying and utilizing heat exchanger technologies. Whether you are looking to understand the latest research, explore new design methodologies, or apply advanced heat transfer techniques, this volume offers the insights and knowledge required to stay at the forefront of the field. Innovative Heat Exchanger Technologies, Developments and Applications is your gateway to understanding the future of heat exchanger technology and its impact on diverse industries.