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Gaiatechnician

136 Edits since joining this wiki
August 28, 2007
(Difference between revisions) | User:Gaiatechnician
(Is this your device?)
 
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Hi, I have been working on a solar parabolic cooker made of cob and it is going really well.
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My circumstances are such that I usually work on hot sunny days so it makes it very difficult for me to solar cook. With that In mind, I have set about to design a simple backyard solar collector that might store the solar energy until I come home at 5.30 or 6 pm.
I am writing here to tell you of my way of making the parabola. All you need is a couple of pieces of wood, some nails and some string and you can make a parabolic bowl from cob! http://www.youtube.com/watch?v=06V1uLgPWyY shows some of my method and I urge people to watch it to see how simple it is! NO MATHEMATICS INVOLVED!!!
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I have not yet succeeded but there have been dividends from the work.
The design I show is totally mine so feel free to modify it and make it better
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I made a low tech solar accumulator this summer. It worked but not great.
I have used solar with funnel and parabolic cookers to kill weed seeds and grubs in soil. This works well. I have used it for a season. I add water to the soil to make it moist. 3 reasons, wet heat is meaner to grubs and weed seeds and spreads the heat better through the mass of soil and also the moisture prevents the humus from burning. I have bought digital oven thermometers for the summer or 2008 to determine the temperature needed for the process. I think 70 degrees C is enough.
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For it I had to design a low tech solar tracker, and a low tech way to make a parabolic dish. These methods have now been added to the public domain. But parabolic dishes are just too finicky. I set about making dish that would have more relaxed parameters.
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I came up with a "compound" parabolic dish and 2 methods to make it.
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This September I tested one as a stand alone solar cooker and it gets an A! It is easy to make, easy to aim and reliable.
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You can see this and my other solar work at
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http://www.youtube.com/user/gaiatechnician
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The designs I show are totally mine and public domain so feel free to modify them and make them better
  +
I have used solar with funnel and parabolic cookers to kill weed seeds and grubs in soil. This works well. I have used it for 2 seasons. I add water to the soil to make it moist. 3 reasons, wet heat is meaner to grubs and weed seeds and spreads the heat better through the mass of soil and also the moisture prevents the humus from burning. I have bought digital oven thermometers for the summer of 2008 to determine the temperature needed for the process. (I used to think 70 degrees C is enough but 80C is definitely better).
 
This might also be usefull for autumn use to "solarize" fruit that falls to the ground. Often fruit falls because of insect attack.
 
This might also be usefull for autumn use to "solarize" fruit that falls to the ground. Often fruit falls because of insect attack.
 
solarization in any solar cooker might kill grubs and spores and reduce infection for the next year.
 
solarization in any solar cooker might kill grubs and spores and reduce infection for the next year.
 
Gardening is very popular across the world. I believe it is not so mission critical to have perfect cooking with this application so people might accept garden solar quite readily!
 
Gardening is very popular across the world. I believe it is not so mission critical to have perfect cooking with this application so people might accept garden solar quite readily!
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I expect garden soil solar cooking to be shown on Television in the USA in 2009. Hopefully with a compound parabolic solar cooker doing the cooking!
 
Brian White
 
Brian White
   

Latest revision as of 17:33, October 3, 2008

My circumstances are such that I usually work on hot sunny days so it makes it very difficult for me to solar cook. With that In mind, I have set about to design a simple backyard solar collector that might store the solar energy until I come home at 5.30 or 6 pm. I have not yet succeeded but there have been dividends from the work. I made a low tech solar accumulator this summer. It worked but not great. For it I had to design a low tech solar tracker, and a low tech way to make a parabolic dish. These methods have now been added to the public domain. But parabolic dishes are just too finicky. I set about making dish that would have more relaxed parameters. I came up with a "compound" parabolic dish and 2 methods to make it. This September I tested one as a stand alone solar cooker and it gets an A! It is easy to make, easy to aim and reliable. You can see this and my other solar work at

http://www.youtube.com/user/gaiatechnician 

The designs I show are totally mine and public domain so feel free to modify them and make them better I have used solar with funnel and parabolic cookers to kill weed seeds and grubs in soil. This works well. I have used it for 2 seasons. I add water to the soil to make it moist. 3 reasons, wet heat is meaner to grubs and weed seeds and spreads the heat better through the mass of soil and also the moisture prevents the humus from burning. I have bought digital oven thermometers for the summer of 2008 to determine the temperature needed for the process. (I used to think 70 degrees C is enough but 80C is definitely better). This might also be usefull for autumn use to "solarize" fruit that falls to the ground. Often fruit falls because of insect attack. solarization in any solar cooker might kill grubs and spores and reduce infection for the next year. Gardening is very popular across the world. I believe it is not so mission critical to have perfect cooking with this application so people might accept garden solar quite readily! I expect garden soil solar cooking to be shown on Television in the USA in 2009. Hopefully with a compound parabolic solar cooker doing the cooking! Brian White

Is this your device? Edit

Mechanical Mathematician Tom Sponheim 17:38, 3 February 2008 (UTC) Yes

Very clever tracking mechanism! Edit

Hi. I added a page on Tracking. We can start adding ideas to that page. This latest one is very ingenious! Tom Sponheim 19:01, 12 February 2008 (UTC)

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