Varun Goel

Augmentation of heat transfer is important in energy conservation and developing sustainable energy systems. This book provides the science necessary to understand the basics of heat transfer augmentation in single-phase engineering systems. It considers theory and practice including computational and experimental procedures, evaluation techniques for performance, and new trends. Several applications of augmentation methods like surface modification, introduction of vortex flow and impinging jets, opportunities of ultrasound and magnetic fields, pulsatile flows, heat exchangers, and nanofluids are provided. Details of basic phenomena and mechanisms are highlighted. Key features:Provides the fundamental science needed to understand and further develop heat transfer augmentation for future energy systemsGive examples of how ultrasound and magnetic fields, vortex flow, impinging jets, surface modification and nanofluids can augment heat transferConsiders basic issues of computational and experimental methods for analysis, design, and evaluation of efficient and sustainable heat transferIt is an ideal reference text for graduate students and academic researchers working in the fields of mechanical, aerospace, industrial, manufacturing, and chemical engineering.

The objective of this book is to demonstrate the incorporation of the pyro-phototronic effect to improve the performance metrics of a self-powered photodetector without compromising the selectivity. Pyroelectric materials like ZnO QDs and CdSe QDs are used for the fabrication of spectrum-selective self-powered photodetectors. The integration of CdSe QDs with organic material such as PQT-12, has also been explored. This combination is further inclined towards low-temperature processing and can be utilized in flexible electronics. An equivalent circuit has also been proposed for pyro-phototronic effect-enhanced self-powered photodetectors.

Augmentation of heat transfer is important in energy conservation and developing sustainable energy systems. This book provides the science necessary to understand the basics of heat transfer augmentation in single-phase engineering systems. It considers theory and practice including computational and experimental procedures, evaluation techniques for performance, and new trends. Several applications of augmentation methods like surface modification, introduction of vortex flow and impinging jets, opportunities of ultrasound and magnetic fields, pulsatile flows, heat exchangers, and nanofluids are provided. Details of basic phenomena and mechanisms are highlighted. Key features:Provides the fundamental science needed to understand and further develop heat transfer augmentation for future energy systemsGive examples of how ultrasound and magnetic fields, vortex flow, impinging jets, surface modification and nanofluids can augment heat transferConsiders basic issues of computational and experimental methods for analysis, design, and evaluation of efficient and sustainable heat transferIt is an ideal reference text for graduate students and academic researchers working in the fields of mechanical, aerospace, industrial, manufacturing, and chemical engineering.

Small Hydropower: Design and Analysis presents a comprehensive guide to the design, operation and maintenance of small hydropower plants. Using detailed diagrams and illustrations, the book examines the classifications, components, equipment, feasibility and analysis of each aspect of SHPs. Following a broad introduction, the book discusses classification approaches based on head, discharge, capacity, etc., analyzes site selection, and gives an overview of key development stages. SHP components for civil engineering works and electro-mechanical equipment have dedicated chapters that are followed by a chapter on how to design new components for the civil, mechanical and electrical aspects of a plant. Subsequent chapters provide guidance on economic and financial analysis, environmental impact, troubleshooting and diagnosis in operating plants, and refurbishment and upgradation of SHPs, when and why this is needed, and how to approach it. Finally, several case studies provide real-world examples of SHPs in operation, giving readers insight into the practical needs of operating SHPs.