High-accuracy Flow Rate Measurement for Water Supply and Dredged Slurry Transport Pipelines PDF Download
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Author: Trimbak Mukund Parchure
Publisher:
ISBN:
Category : Flow meters
Languages : en
Pages : 168
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Book Description
Author: Trimbak Mukund Parchure
Publisher:
ISBN:
Category : Flow meters
Languages : en
Pages : 168
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 165
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Book Description
The conventional techniques for high-accuracy ultrasonic flow measurement using multiple chordal paths in a pipe require drilling holes in the pipe for inserting the sensors. Under the Construction Productivity Advancement Research (CPAR) program, a research project was jointly undertaken by ORE and the U.S. Army Corps of Engineers for development of a new flow meter. The product developed is an externally mounted acoustic flow meter. The advantages of the 'clamp-on' type flow meter are as follows: (a) no contact with the fluid, (b) no welding or cutting of pipe necessary, (c) no operational shutdown needed for installation, repairs, or maintenance, (d) quick and easy installation, and (c) low cost of installation. The technology consists of the following: (a) conformal phased array transducers applied to a prepared surface at four to six locations on the exterior of the pipeline, and (b) a signal processing unit that generates acoustic signals for transmission between pairs of transducers installed above; receives and time-compresses the signals; determines precise acoustic travel times between one or more transducer pairs; and employs these measured travel times to determine the flow rate using algorithms well known to the flow measurement industry. The transducers are constructed of a relatively new material, PVDF. This material is found to be ideal for a flexible production transducer easily installable in the field conforming to a variety of pipe exterior dimensions. The new meter is a differential travel-time acoustic meter. The system measures the difference in travel time between signals propagating upstream and downstream between multiple pairs of transducers. Under no-flow conditions the travel time in each direction will be the same.
Author: United States. Congress. House. Committee on Appropriations. Subcommittee on Energy and Water Development
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 580
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Book Description
Author: United States. Congress. House. Committee on Appropriations. Subcommittee on Energy and Water Development
Publisher:
ISBN:
Category : Energy development
Languages : en
Pages : 540
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Book Description
Author: C A Shook
Publisher: Elsevier
ISBN: 1483292207
Category : Science
Languages : en
Pages : 337
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Book Description
Slurry Flow: Principles and Practice describes the basic concepts and methods for understanding and designing slurry flow systems, in-plan installations, and long-distance transportation systems. The goal of this book is to enable the design or plant engineer to derive the maximum benefit from a limited amount of test data and to generalize operating experience to new situations. Design procedures are described in detail and are accompanied by illustrative examples needed by engineers with little or no previous experience in slurry transport. The technical literature in this field is extensive: this book facilitates its use by surveying current research results and providing explanations of mechanistic flow models. This discussion of background scientific principles helps the practitioner to better interpret test data, select pumps, specify materials of construction, and choose measuring devises for slurry transport systems. The extensive range of topics covered in Slurry Flow: Principles and practice includes slurry rheology, homogeneous and heterogeneous slurry flow principles, wear mechanisms, pumping equipment, instrumentation, and operating aspects.
Author: Haoqing Xu
Publisher: Springer Nature
ISBN: 3031312899
Category : Science
Languages : en
Pages : 268
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Book Description
This book is designed to be the introductory work in the new Sustainable Development of Water Resource and Environmental Management Series and provides an in-depth look at sustainable development and management in the water sector across. In the face of current global changes, the availability and quality of water resources are under severe threat. Indeed, in all sectors related to water resources management, sustainable development is important for present and future generations. This book includes selected papers from the 5th International Symposium on Water Resource and Environmental Management (WREM 2022) and consists of themes pertaining to water resource and environmental management. It provides readers with comprehensive information on the principles of sustainable water resources management, as well as recent advances, directions for future research, and policy development for sustainable water resources management. As a reference, it is of interest to students, scientists, engineers, government officials, and water resource managers.
Author: Gershon Kulin
Publisher:
ISBN:
Category : Flow meters
Languages : en
Pages : 104
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Book Description
Author:
Publisher:
ISBN:
Category : Water
Languages : en
Pages : 622
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Book Description
Author: Maritime Research Information Service
Publisher:
ISBN:
Category :
Languages : en
Pages : 1120
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Book Description
Author: K. C. Wilson
Publisher: Springer Science & Business Media
ISBN: 9780387232621
Category : Technology & Engineering
Languages : en
Pages : 456
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Book Description
1,1 Applications of Slurry Transport Vast tonnages are pumped every year in the form of solid-liquid mixtures, known as slurries. The application which involves the largest quantities is the dredging industry, continually maintaining navigation in harbours and rivers, altering coastlines and winning material for landfill and construction purposes. As a single dredge may be required to maintain a throughput of 7000 tonnes of slurry per hour or more, very large centrifugal pumps are used. Figures 1-1 and 1-2 show, respectively, an exterior view of this type of pump, and a view of a large dredge-pump impeller (Addie & Helmley, 1989). The manufacture of fertiliser is another process involving massive slur- transport operations. Li Florida, phosphate matrix is recovered by huge draglines in open-pit mining operations. It is then slurried, and pumped to the wash plants through pipelines with a typical length of about 10 kilometres. Each year some 34 million tonnes of matrix are transported in this manner. This industry employs centrifugal pumps that are generally smaller than those used in large dredges, but impeller diameters up to 1. 4 m are common, and drive capacity is often in excess of 1000 kW. The transport distance is typically longer than for dredging applications, and Chapter 1 Figure LI. Testing a dredge pump at the GIW Hydraulic Laboratory Figure 1. 2. Impeller for large dredge pump 1. Introduction 3 hence a series of pumping stations is often used. Figure 1-3 shows a boost- pump installation in a phosphate pipeline.
