Solar- and Wind-powered Irrigation Systems PDF Download

Author: Robert Vaughn Enochian
Publisher:
ISBN:
Category : Irrigation
Languages : en
Pages : 36

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Book Description

Author: Robert Vaughn Enochian
Publisher:
ISBN:
Category : Irrigation
Languages : en
Pages : 28

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Book Description

Author: Robert V. Enochian
Publisher:
ISBN:
Category : Irrigation
Languages : en
Pages : 28

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Book Description

Author: Aerospace Corporation. Energy and Transportation Division
Publisher:
ISBN:
Category : Irrigation
Languages : en
Pages : 94

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Book Description

Author: Us Department of Agriculture (Usda)
Publisher:
ISBN: 9781296044428
Category :
Languages : en
Pages : 36

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Book Description
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Author:
Publisher:
ISBN:
Category : Irrigation pumps
Languages : en
Pages : 32

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Book Description

Author: Robert Vaughn Enochian
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 36

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Book Description

Author: Jochen Bundschuh
Publisher: CRC Press
ISBN: 135165814X
Category : Science
Languages : en
Pages : 606

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Book Description
The agri-food chain consumes about one third of the world’s energy production with about 12% of it for crop production and nearly 80% for processing, distribution, retail, preparation and cooking. The agri-food chain also accounts for 80-90% of total global freshwater use where 70% alone is for irrigation. Additionally, on a global scale, freshwater production consumes nearly 15% of the entire energy production. It can therefore be argued that making agriculture and the agri-food supply chain independent from fossil fuel use has a huge potential to contribute to global food security and climate protection not only for the next decades but also for the coming century. Provision of secure, accessible and environmentally sustainable supplies of water, energy and food must thus be a priority. One of the major objectives of the world’s scientists, farmers, decisions makers and industrialists is to overcome the present dependence on fossil fuels in the agro-food sector. This dependency increases the volatility of food prices and affects economic access to sustenance. This book provides a critical review of recent developments in solar, wind and geothermal energy applications in agriculture and the agro-food sector such as processing, distribution, retail, preparation and cooking.

Author: United States. Department of Energy
Publisher:
ISBN:
Category : Irrigation farming
Languages : en
Pages : 12

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Book Description

Author: Ahmed M. Al-zoheiry
Publisher:
ISBN:
Category : Agriculture and energy
Languages : en
Pages : 193

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Book Description
Abstract: Food production is a problem in many of the regains in the world. Today, the process of producing food is very dependent on energy. The dependency on fossil fuels causes the cost of producing crops to increase as the prices of fuel increases. Using a renewable energy sources to power an irrigation system is a mean of decreasing the dependency of food products on the prices of fuel and minimize the impact of the irrigation system on the environment. A model was developed to simulate and predict the performance of an irrigation system powered by a renewable energy source. Both solar energy and wind energy were considered for the modeling of the system. The solar energy was simulated using the difference between the maximum and the minimum daily temperatures as an indicator of the amount of clouds in the atmosphere. The model is a modification of earlier models and has the advantage of not needing to be calibrated for each new site. Results showed that a model that calibrates it self for the upper and the lower expected values of the solar radiation can be developed using meteorological data such as the location of the site, the daily temperatures, and the minimum relative humidity. ii The wind energy was predicted using the power coefficient of the turbine and statistical representation of the daily wind speeds. The average hourly values of the wind speed were used for finding the distribution constants for the Weibull distribution and Rayleigh distribution. The results showed that the Weibull distribution is more accurate in predicting the expected power output of the turbine when the daily wind speed coefficient of variation (Cv) was less than 0.5. When the Cv is greater than 0.5 the Rayleigh distribution gives better results. A computer model was developed using Visual Basic to model the system and the resulting model was tested and used in comparing the economics of a traditional irrigation system and an irrigation system powered by solar panels. The system powered by the solar panel had a greater total annual cost than the traditional system but the sensitivity analysis performed showed that if the trends in energy prices continue and the prices of the solar panels continue to decrease, the cost for operating the traditional systems will be close to the cost of operating the systems powered by the solar panels in less than a 10 years.