Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Energy Savings And Irrigation Performance Of A Modified Center Pivot Irrigation System
Download Energy Savings And Irrigation Performance Of A Modified Center Pivot Irrigation System full books in PDF, epub, and Kindle. Read online Energy Savings And Irrigation Performance Of A Modified Center Pivot Irrigation System ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Energy Savings and Irrigation Performance of a Modified Center Pivot Irrigation System by : Sagar Raj Pandey
Download or read book Energy Savings and Irrigation Performance of a Modified Center Pivot Irrigation System written by Sagar Raj Pandey and published by . This book was released on 1989 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Conservation of Energy Using Variable Frequency Drive for Center Pivot Irrigation Systems in Nebraska by : Dilshad Brar
Download or read book Conservation of Energy Using Variable Frequency Drive for Center Pivot Irrigation Systems in Nebraska written by Dilshad Brar and published by . This book was released on 2015 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study introduces a novel approach to lower the operating pivot point pressure by varying the motor speed with the help of variable frequency drive (VFD) in contrast to the commonly used fixed speed approach. By varying the speed of motor, the required minimum pivot point pressure can be provided at any required flow rate. This was investigated through a GIS-assisted simulation on 100 randomly selected pivots located in 10 Nebraska counties using high resolution Digital Elevation Model (DEM) datasets. Center pivot irrigation systems are usually equipped with corner watering attachments like end guns and corner extensions to irrigate additional area at the corners of the field. Two different types of corner watering equipment i.e. end gun and corner extension were involved in this study. Four different scenarios were taken into consideration 1) standard systems with seven towers and no corner watering attachment, 2) end gun attached at the end of center pivot system, 3) corner extension attached at end of center pivot system, and 4) center pivot system equipped with corner extension and end gun. Two different approaches were used to operate the center pivot systems 1) at constant motor speed with fixed design pivot point pressure, 2) at varying motor speed according to the minimum required pivot point pressure. The varying topography as well as the shape of the pump performance curve at fixed motor speed were found to play a major role in energy conservation. The energy reductions obtained through varying speed approach, along with annual monetary savings were calculated for all the study counties under all the scenarios. The major factors contributing to maximum energy savings and annual returns were large topographical changes, shape of pump performance curve, long irrigation operating hours, and high electricity costs. Cedar County showed the maximum average energy reductions by using varying speed approach whereas Hamilton and Butler County expressed minimum energy reductions in all the scenarios. Economic analysis was conducted for the potential investment in VFDs along with the average payback periods for the cost of VFD in each county. Overall, the suggested use of the Variable Frequency Drive has proven to provide savings in terms of energy conservation from the analysis performed in the study. However, there are emerging concerns about the cost-effectiveness of the approach. It is expected that the technology will receive high adoption, specifically in irrigation sector, from producers, research community and industry, if manufacturers are able to address economic concerns of the end user. This study provides a holistic approach in quantifying the energy savings over a large study area, which provides the producers, water resource managers, planners, and decision and policy makers, a clear picture of the widely variable anticipated benefits when aiming at adoption of a VFD.
Book Synopsis Irrigation System Selection in an Energy-short Economy by : Verel W. Benson
Download or read book Irrigation System Selection in an Energy-short Economy written by Verel W. Benson and published by . This book was released on 1981 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Efficiency of Center Pivot Irrigation in Southeast Wyoming by : Dennis Kaan
Download or read book Efficiency of Center Pivot Irrigation in Southeast Wyoming written by Dennis Kaan and published by . This book was released on 1991 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Conserving Energy Through New Irrigation Technologies by :
Download or read book Conserving Energy Through New Irrigation Technologies written by and published by . This book was released on 1982 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Innovative Movable Surface Irrigation Systems (modified Pivot) by : El-Hagarey Mohamed
Download or read book Innovative Movable Surface Irrigation Systems (modified Pivot) written by El-Hagarey Mohamed and published by LAP Lambert Academic Publishing. This book was released on 2015-06-09 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Center pivot modification depends on replacing the sprinkler head (sprayers) by Polyethylene hoses ending by nozzles. The main objectives of this study are to modify pivot irrigation system to be more suitable to irrigate trees, and other crops under special conditions and to evaluate the modification system. The obtained results, High uniformity coefficient of modified pivot is up to 90% and TDH is 1.5 bar, Energy requirements for the modified pivot is lower than the energy requirement at pivot, its lower with (26% - 80.3%). The energy cost for modified pivot was lower than the sprinkler pivot by (81.25%), the cost of one m3 of water in LE for modified pivot was lower than sprinkler by (62.9 %), and finally, cost of the unit production unit (LE/kg) for modified pivot was lower than the sprinkler pivot by (23 %). Flexibility of modified pivot to irrigate shrubs, small trees, and plants which sensitive to water with any fungal disease or flowers fall.
Book Synopsis Closed Circuit Trickle Irrigation Design by : Megh R. Goyal
Download or read book Closed Circuit Trickle Irrigation Design written by Megh R. Goyal and published by CRC Press. This book was released on 2015-08-03 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: Closed circuit trickle irrigation is a form of micro irrigation that increases energy and water efficiency by using closed circuit drip irrigation systems designs. Modifications are made to traditional micro irrigation methods to reduce some of the problems and constraints, such as low compressor water at the end of irrigation lines. This approach
Book Synopsis Masters Abstracts International by :
Download or read book Masters Abstracts International written by and published by . This book was released on 1990 with total page 808 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Irrigation: Centre pivot and lateral move by : Jennifer Laffan
Download or read book Irrigation: Centre pivot and lateral move written by Jennifer Laffan and published by NSW Agriculture. This book was released on 2016-05-18 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Centre pivots and lateral moves (CPLM) are pressurised irrigation systems that supply water to crops or pastures. They are suitable for a wide range of broadacre farming enterprises, different soil types and undulating terrain. This book is about: · the components of centre pivot and linear move irrigation systems · unique features of CPLM pressurised irrigation systems · fundamentals of a pressurised irrigation system and their impact on efficiency · measuring performance of CPLM systems · pressure and discharge tests on a pressurised irrigation system · pressure and discharge variations · how the performance characteristics impact on total water use and crop uniformity · evaluating the function of an irrigation system. This book focuses on the water delivery aspects and the key measures of efficiency: Field Application Efficiency, Distribution Uniformity, Average Application Rate and Average Application Depth per Pass. This publication was produced by Education Delivery, Tocal College. It supports the following competencies from National Training Package AHC10 Agriculture, Horticulture, Conservation and Land Management: AHCIRG502A – Design irrigation system maintenance and monitoring program
Book Synopsis Irrigating Efficiently by : Joe Makuch
Download or read book Irrigating Efficiently written by Joe Makuch and published by DIANE Publishing. This book was released on 1995-07 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: 264 citations, some with annotations, covering the field of low energy, precision &/or efficient water conservation in irrigation. Subject and author indices.
Book Synopsis Agriculture and Energy by : William Lockeretz
Download or read book Agriculture and Energy written by William Lockeretz and published by Elsevier. This book was released on 2012-12-02 with total page 783 pages. Available in PDF, EPUB and Kindle. Book excerpt: Agriculture and Energy consists of the proceedings of a conference held at Washington University, St. Louis, Missouri, on June 17-19, 1976. The conference aims to bring together a broad spectrum of researchers concerned with obtaining a better understanding of the energy consumption by agriculture. These researchers are also concerned with developing ways to help food production adapt to occurring and anticipated resource availability problems. This book is organized into nine parts, separating the papers of the conference as chapters. It describes the quantity of energy consumed in particular production processes or in production at various levels of aggregation in the field of agriculture. It also dwells into the economic impacts of energy problems on agricultural production. It looks into the comparative economic and energy costs of the various methods for producing a specific product. Furthermore, this reference material discusses unconventional production methods that can reduce the need for fossil energy inputs by using renewable energy sources or recycling materials. Lastly, the implications of the energy situation for agricultural policy, both in the U.S. and in developing countries, are shown.
Book Synopsis Agricultural Irrigation Initiative by : Dan Berne
Download or read book Agricultural Irrigation Initiative written by Dan Berne and published by . This book was released on 2015 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Northwest Energy Efficiency Alliance (NEEA)'s Agricultural Irrigation Initiative ran from 2011-2014. A series of twelve reports thoroughly documents NEEA's experience and insights gained through three years of market research, market activity, and demonstrations associated this initiative. Center pivots are an important method of irrigating farmland, comprising the largest amount of pressurized irrigation of acreage in the Northwest. This report provides a basic introduction and overview to a center pivot systems"--Publisher's description (viewed Feb. 23, 2015).
Book Synopsis A Simplified Statistical Method for Field Evaluation of Sprinkler Irrigation Systems by : Mohamed Eldaw M. Elwadie
Download or read book A Simplified Statistical Method for Field Evaluation of Sprinkler Irrigation Systems written by Mohamed Eldaw M. Elwadie and published by . This book was released on 1995 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis San Joaquin Valley by : Karen McNeill
Download or read book San Joaquin Valley written by Karen McNeill and published by . This book was released on 1983 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agrindex written by and published by . This book was released on 1995 with total page 1390 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Arid Lands written by Charles Hutchinson and published by Routledge. This book was released on 2019-04-23 with total page 1436 pages. Available in PDF, EPUB and Kindle. Book excerpt: The international conference Arid Lands: Today and Tomorrow drew more than 400 participants from over 3 S countries to Tucson, Arizona, for one week in October of 19 8 S. The diversity of presenters, disciplines and subject matters addressed contributed to an interesting and informative conference. The papers presented in this volume represent the efforts of scientists and other individuals who, through their various disciplines, are addressing the problems of and opportunities presented by the arid lands of the world. A committee of five scientists reviewed for substance. relevance and their contribution to the conference the 284 abstracts that were submitted. They selected 146 for presentation at the conference and of those papers presented, 128 were received for inclusion in the proceedings.
Book Synopsis Optimal Performance from Center Pivot Sprinkler Systems by : Bradley Albert King
Download or read book Optimal Performance from Center Pivot Sprinkler Systems written by Bradley Albert King and published by . This book was released on 1997 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
