To mark the big climatic event with the world top leaders that takes place in New Your these days, this is my two cent to save the planet. Hopefulle it gives inspiration to twist your head once again to find new ways you can reduce CO2. I think it is time to look for new solutions in all directions. Solar cooking is one of them, and I have just made a new design wich I call a Circular Solar Cooker.
The Circular SoIar Cooker is a foldable solar cooker that is easy to carry, easy to set up and of…
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Added by Magnar on September 22, 2009 at 11:30pm —
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Hot water is not taken for granted everywhere in the world. It demands a lot of energy and in some countries this often means burning coal or wood. Another alternative is to take advantage of the sun. A normal plastic water botle of 10 liters covered in black can be heated to just above 80 degrees C before the plastic starts to melt down. Even 60 -65 degrees is enough for getting safe driking water. Water heaters does not have to be very complicated. A black botle is enough to get water heated u…
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Added by Magnar on June 19, 2009 at 12:30am —
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This time I wanted to get to the real thing. I found some people who where willing to put it together and after a week they came back with a brand new solar cooker. I wanted the solar cooker to be done locally to stimulate local business. This was just the first model we tried out, and there should always be room for improvements. But I was very happy that this first solar cooker turned out to be succsessful. After cooking and tasting the food with my friends it turned out to be a very nice expe…
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Added by Magnar on April 10, 2009 at 12:49pm —
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Lately I have tried to build some of the 3D models based on 2D printouts. Of course it is possible to put the models out in the STL format and send them over to the folks at CAD span. But the price tag is still a bit heavy. As I am on a low budget, I found it therefor more helpful to make the models in 3D on my computer and then project them piece by piece onto a 2D format. On a small scale base, they then can be printed out on a ordinary printer before being glued and put together in its ordina…
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Added by Magnar on February 2, 2009 at 2:36am —
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There seems to be an widespread confusion about how solar rays reflect in an cone. If sun rays was like water, it is easy to believe they would "fall" down the tube and end up at the bottom of it. This is certainly not the case. Sun rays reflect on a surface (generelly) with the incomming angel equal to the outgoing. To understand what I mean take a look at the illustrations here:
This has some very strange con…
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Added by Magnar on November 24, 2008 at 9:30pm —
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This week I am presenting what I for the moment is calling Conical Ground Cookers. I called them Ground Cookers because they rest on the ground or very close to the ground only supported by a little stand for tilting purposes. Many of the photos in this series show also how the sun reflects in the parabolic structure. The biggest model is 130 cm off the ground, (this is with a with of 145cm). With this model I think it is most convinient to bring food in from the hole at the base of the parabol.…
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Added by Magnar on November 14, 2008 at 8:30am —
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Some solar cookers take their name from the cooking space, others, like pannel cookers, take their names from the type of reflector being used. Again other, like solar grills and solar parabolics may take their name from how the reflector is curved, if it is a deep curve of shallow curve. To help myself and maybe others too to get things straight, I have made a proposition for terminology to classify solar cookers. I know there are some classifications out there already, but the subject is proba…
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Added by Magnar on November 9, 2008 at 2:30pm —
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Allong with many other sites, we are happy to annonce that we got an inspirational third price on the contest. Diplomatically we shared the price with some other sites.
The entries were judged mainly on three things: #1. Was the web page pleasant, with good navigation, good spelling, and a good attitude? #2. Did somebody REALLY use a solar cooker? Photos were very important! #3. Did this web page make us want to leap up and cook something using the sun? (#1 was not as important as
#2 and #3!)…
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Added by Magnar on November 8, 2008 at 12:11am —
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Today I added a new design to support development of a cheap but hopefully fairly effective solar grill for developing countries. I think that I one day also can get to build it, but some more reflections needs to be done. The intention with this parabolic design was partly to adjust the form to materials easily found in developing countries, partly to find a design that can be tilted by its own shape. The metal plate is 1*2.5 m and is sold for 10 Euros in Congo-Brazzaville. It is not perfect bu…
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Added by Magnar on October 30, 2008 at 9:30am —
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While there for a couple of years back was hard to find new projects about solar cooking, today you will find them easily on the net. Solar cookers are coming together from all over the world helping each other out with ideas and their newly gained experiences.
Solar cookers today have started to find their proper shapes and forms thanks to years of experience. Yes, it is true they are coming in many different shapes and fashions, and it can be a bit confusing to tell the difference between them…
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Added by Magnar on September 11, 2008 at 6:30pm —
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Circular Solar Cooker
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