Grain Mill - Revision history

Ranisha at 18:52, 14 July 2020

2020-07-14T18:52:37Z

Ranisha: /* Further Information */

2020-02-11T11:12:47Z

‎Further Information

Ranisha: /* DC Grain Mills */

2019-03-11T15:47:19Z

‎DC Grain Mills

Lisafeldmann at 09:37, 23 August 2016

2016-08-23T09:37:49Z

Ranisha at 10:59, 4 March 2015

2015-03-04T10:59:15Z

Wiki Gardener at 12:08, 17 November 2014

2014-11-17T12:08:02Z

Ranisha at 12:23, 5 November 2014

2014-11-05T12:23:37Z

Ranisha at 12:09, 5 November 2014

2014-11-05T12:09:19Z

Wiki Gardener at 13:16, 10 October 2014

2014-10-10T13:16:12Z

Ranisha at 14:17, 15 August 2014

2014-08-15T14:17:11Z

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 = Overview<br/> =
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 = Further Information =
-*[[Portal:Powering Agriculture|Powering Agriculture Portal on energypedia]]
+*[[Portal:Water and Energy for Food|Water and Energy for Food (WE4F) portal on energypedia]]
 *[[Publication_-_Solar_Milling:_Exploring_Market_Requirements_to_Close_the_Commercial_Viability_Gap|Publication - Solar Milling: Exploring Market Requirements to Close the Commercial Viability Gap]]<br/>
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 <references />
 [[Category:Impacts]]

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 <br/>
 = Further Information =
 *[[Portal:Powering Agriculture|Powering Agriculture Portal on energypedia]]
 <br/>
 = References<br/> =

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 *Requires battery maintenance.
-<br/>
+{{#widget:YouTube|id=xWgevfqIvdU|height=400|width=800}}
 === AC Grain Mills<br/> ===

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 = Overview<br/> =
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 <u>There are several technologies available, and they can be grouped into technologies:</u>
 *concerning the way the product is milled
 *concerning the way the motor is driven
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 === DC Grain Mills<br/> ===
-These are the so-called « solar » grain mills. For the sake of this article, a solar grain mill is a grain mill that is driven by direct current. The grain mill is used in a solar system that consists of the basic components (PV panels, batteries, charge controller, load). Common voltage levels are 12 V and 24 V.
+These are the so-called «&nbsp;solar&nbsp;» grain mills. For the sake of this article, a solar grain mill is a grain mill that is driven by direct current. The grain mill is used in a solar system that consists of the basic components (PV panels, batteries, charge controller, load). Common voltage levels are 12 V and 24 V.
 [[File:Dc grain mill with mill operator.JPG|thumb|right|180px|DC grain mill with mill operator. This specific device is used for millet.]]<u>Advantages:</u>
 *General advantages of decentralised [[Solar Home Systems (SHS)|solar systems]]: usable wherever the resource is available, can be sized to the need, etc.
 <u>Disadvantages:</u>
 *Relatively high start-up currents require a start-up resistor which may brake easily.
 *The start-up current also means that the load (the mill) cannot be directly connected to the charge controller, but must be connected to the battery. The battery is thus not protected against deep discharge. Users must be trained to switch off the mill as soon as the charge controller indicates a deep discharge.
 Technically, one could solve this problem by including a shunt that is governed by the load contact of the charge controller and that disconnects the mill as soon as the charge controller switches off the load. However, DC shunts are very expensive.
 *Requires battery maintenance.
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 |}
+<br/>
 == Improper Sizing<br/> ==
-When designing the system, one should take care of proper sizing of the mill and the associated power system. <u></u>
+When designing the system, one should take care of proper sizing of the mill and the associated power system.
 <u>Key questions to be considered include:</u>
 *What is the amount of grain that has to be milled on average, and in peak times? Can my (diesel / solar) system power the mill for a sufficient amount of time?
 *What is the output of the mill (in kg/day)? Does the output vary in function of the type of grain?
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 = Further Information =
-*[[Portal:Powering_Agriculture|Powering Agriculture Portal on energypedia]]
+*[[Portal:Powering Agriculture|Powering Agriculture Portal on energypedia]]
-−
 = References<br/> =
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 <references />
 [[Category:Lessons_Learned]]

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 = Overview<br/> =
@@ Line 129: / Line 128: @@
 <references />
 [[Category:Impacts]]

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 = Overview<br/> =
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 One of the first conclusion of the project was to not underestimate the amount of work necessary in the beginning to make the productive use work.
--> Please see a presentation [[:File:GIZ_Im_Abseits_der_Netze_012011_Senegal_Peracod_PU_Wegener.pdf| here]] on some issues with solar grain mills in Senegal.
+► Please see a presentation [[:File:GIZ Im Abseits der Netze 012011 Senegal Peracod PU Wegener.pdf|here]] on some issues with solar grain mills in Senegal.
--> [[Senegal_Energy_Situation|Senegal Energy Situation]]
+► [[Senegal Energy Situation|Senegal Energy Situation]]
 <br/>
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 == Types of Grain that can be Milled<br/> ==
-Grain mills must be adapted to the type of product to be milled. There are several grain mills which can be adapted to different goods, for example, wheat, maize, or sorghum. Be careful when choosing a product and test it before deployment.
+{| cellspacing="1" cellpadding="5" border="0" style="width: 100%"
 == Improper Sizing<br/> ==
-When designing the system, one should take care of proper sizing of the mill and the associated power system. <u>Key questions to be considered include:</u>
+When designing the system, one should take care of proper sizing of the mill and the associated power system. <u></u>
 *What is the amount of grain that has to be milled on average, and in peak times? Can my (diesel / solar) system power the mill for a sufficient amount of time?
 *What is the output of the mill (in kg/day)? Does the output vary in function of the type of grain?
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 <br/>
 = References<br/> =
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 <references />
 [[Category:Lessons_Learned]]

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 = Overview<br/> =
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 = Practical Experiences =
-== [[Senegal_Energy_Situation|Senegal]] ==
+== Senegal ==
 PERACOD currently has two DC-driven grain mills in operation. These grain mills were bought locally. After initially receiving quotes for a product that seemed suitable, another product had to be bought since the provider could not deliver the product the project had originally aimed at.
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 -> Please see a presentation [http://energypedia.info/index.php/File:GIZ_Im_Abseits_der_Netze_012011_Senegal_Peracod_PU_Wegener.pdf here] on some issues with solar grain mills in Senegal.
 <br/>
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 <references />
 [[Category:Agriculture]]