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Water Wells And Pumps

RRP $256.99

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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


Water Purification Using Heat Pumps

RRP $444.99

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This book is the result of a long-term co-operative research and professional development programme between the Instituto de Investigaciones Electricas (IIE), Mexico, and the University of Salford, UK. It provides the design basis for the fabrication of small and large scale commercial absorption heat pump systems, and includes a comprehensive treatment of the economics of heat pump systems. It charts the development of heat pump technology from theoretical principles to the operation of practical systems for the purification of water, both for human consumption and a wide variety of industrial purposes.
In addition to the increasing demand for potable water there is a rapidly increasing demand for clean water in industries ranging from foodstuffs and pharmaceuticals to electronics. This book will be essential reading for industrial engineers and others concerned with the cost-effective, environmentally friendly production of clean water.


Centrifugal Pump Technology And Pump Cavitation

RRP $274.99

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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.


Water Pollution

RRP $268.99

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The growing concerns over availability of clean water have been elucidated in this insightful book. Water pollution is a significant problem globally that requires ongoing investigation and revision of water resource policy at all levels - from international level to individual aquifers and wells. It has been implied that it is the leading worldwide cause of deaths and diseases, and that it accounts for the deaths of more than 14,000 people on a daily basis. In addition to the severe water pollution problems in developing countries, industrialized countries keep struggling with pollution problems as well. Water is commonly referred to as polluted when it is flawed by anthropogenic contaminants and either does not support human usage, such as drinking water, and/or undergoes a marked change in its capability to support its constituent biotic communities, such as fish. Natural phenomena like volcanoes, algae blooms, storms and earthquakes also cause notable changes and shifts in the water quality and the ecological status of water. In course of time, most water pollutants are carried by rivers into the oceans.


King Pumpkin

RRP $16.99

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"The sun went down, the moon came up, and beggars roamed the streets. I went door to door performing my tricks, so I might earn my treats. A Hallowe'en cat crossed my path, its green eyes all I could see-I had a feeling as I walked home, something was waiting for me..."Enter the magical world of KING PUMPKIN - Mark Zahn's spookily charming collection of verses set on Halloween night! Learn how the jack-'o-lantern got its name; watch a macabre dance of the living dead clatter about a graveyard; witness a hungry creature that lives beneath a child's bed; try your hand at ghoulish recipes from a witch's kitchen; and see why zombies don't write poetry! With verses for trick-or-treaters young and old - and enhanced by haunting black-and-white illustrations from renowned artist, Katie Aguado - this delightfully devilish volume is sure to become a Halloween classic!



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