Design and Build Safe, Efficient Systems for Irrigation and Water Supply
"Water Wells and Pumps" is a comprehensive guide to the essential theory and design of ground water structures, wells/tube wells, and pumps, with particular emphasis on problem solving and meeting the requirements of developing nations. It features thorough, up-to-date knowledge of the science and technology of water wells and pumps as well as allied appliances and applications.
This authoritative desk reference outlines the construction, operation, and maintenance of water wells for irrigation and water supply. It also presents the development and testing of tube wells as well as a variety of pumps, both location-specific. Using SI units exclusively, "Water Wells and Pumps" features: Coverage of a variety of pumps, including those using nonconventional, environmentally friendly means Examinations of ground water recharge methods, well rehabilitation, and animal-powered water lifts Techno-economic evaluation of projects on wells and pumps References and problems at the end of each chapter for research and educational use
Solutions for all problems related to designing secure, reliable systems - Ground water resources development and utilization - Hydraulics of wells - Open wells - Tube wells and their designs - Development and testing of tube wells - Rehabilitation of sick and failed tube wells - Man- and animal-powered water lifts and positive displacement pumps - Variable displacement pumps and accessories - Centrifugal pumps - Deep well turbine and submersible pumps - Propeller, mixed flow, and jet pumps - Applications of nonconventional energy sources in pumping
Centrifugal pump technology involves a broad spectrum of flow phenomena, which have a profound impact on design and operation through the achieved efficiency, the stability of the head-capacity characteristic, component failure due to fatigue, as well as material damage caused by cavitation, hydro-abrasive wear or erosion corrosion. Operation and life cycle costs of pumping equipment depend to a large extent on how well these phenomena and the interaction of the pump with the system are understood. The book comprises thirteen chapters covering: theory of centrifugal pump impeller, design of mixed flow impellers, pump casing, hydraulic performance, leakage-disk friction and mechanical losses, water hammer, special operating conditions, and its applications. The book also describes cavitation in pumps, and how unacceptable cavitation can be avoided with the aid of an inducer or using a bleeding system. It explains cavitation problems such as hydraulic performance loss, hydro-dynamically or thermodynamically induced surging, and cavitation erosion/corrosion. The book aims to be simple as is compatible with reasonably complete treatment of the subject. The mathematics has been kept as elementary as possible and many of the standard proofs have been simplified. This book is intended for professional engineers, researchers, specialist students, plant operators and maintenance personnel, plant engineers, and consulting engineers.
This book offers an in-depth description of absorption chillers and heat pumps, focusing on relatively simple systems that employ working fluids in the liquid and vapor phase. The book provides a thorough explanation of how thermodynamic and transport properties of working fluid mixtures enable them to influence the performance of absorption systems. The student or engineer who is a newcomer to the field will gain a comprehensive knowledge essential for the design and evaluation of absorption systems.
First Published in 2011. Routledge is an imprint of Taylor & Francis, an informa company.
For Hayley Powell, food and cocktails columnist for the Island Times, Halloween is all about costume parties and holiday treats-until a killer crashes the party...
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