Entries related to Parabolic
August 30, 2009
Fun solar cooker from old Satellite Dish
June 09, 2009
Roasting a Marshmallow (with Nothing but the Sun)
How to roast a marshmallow:
Step 1: Stick marshmallow in center of parabolic cooker.
Step 2: Point parabolic cooker at the sun.
Step 3: Enjoy!
December 05, 2008
Butterfly Community Solar Cooker from TinyTechIndia
Tiny Tech India has come up with a new version of a parabolic solar reflector called the Butterfly Community Solar Cooker.
According to the web site, it's advantages are:
- As there are two equal reflectors - one on each side-, weight is balanced and hence it does not require foundations in the ground. It is mounted on 4 castor wheels and can be revolved and shifted in any direction at any moment even while cooking. In Scheffler Reflector, it is essential to fix the cooker with ground by RCC foundations.
- It is not necessary to find out north south direction. In Scheffler Reflector, it is essential to fix north-south line and fit the cooker on that line.
- It does not require to install on polar axis. So no latitude of the location is necessary to know. In Scheffler Reflector, it is essential to fix entire structure to revolve around polar axis and hence latitude of the location must be known.
- It does not require any seasonal adjustment. In Scheffler Reflector, it is essential to make seasonal adjustment every week.
- It is dispatched in dismantled condition and it can be assembled at site very quickly without any expert guidance. So installation staff is not necessary. In Scheffler Reflector, it is essential to send expert person for installation.
- 100% reflector area is utilized as aperture area as against 70 to 80 aperture area is used in Scheffler reflector. So 8 sq mt butterfly is equivalent to 10 sq mt Scheffler reflector.
- Both wings (reflectors) can be folded vertically on hinges very quickly. Hence when not in use, it will occupy very less space.
- It can be quickly adjusted against focus by any layman without any training.
- The cost of Butterfly cooker of equal capacity is only 50% of Scheffler reflector.
Learn more about TinyTechIndia at http://www.tinytechindia.com
November 19, 2008
John Grandinetti's Indirect Solar Cooker
Mr. Grandinetti's oven can be made for about $21 dollars and here's the kicker: he is giving it away. He doesn't want to sell the plans, he wants a company to take it and mass produce it for third world countries so that forests won't need to be cut down for things like cooking fires. A noble idea indeed. It will be interesting to see if any company, anywhere steps up and takes him up on his offer.
John Grandinetti is a solar contractor out of Honolulu, and the owner of Grand Solar Inc. This isn't his first foray into the solar cooking/pasteurization field. He also has created similar devices for the purpose of pasteurizing water in the late 90's for third world installations in Tanzania and Guatemala.
Continue reading "John Grandinetti's Indirect Solar Cooker" »
November 05, 2008
Solar Cooking Workshop in Nyala, Darfur
Nyala was the headquarters of the Daju empire, which was established around Jebel Um-Kurdós, until the fall of the Daju rule at the end of the 15th century, according to an account of sultan Daju Kassi Furok or Kassifrogé who mounted the Antelope from Darfur then perished in Dar Sila.
Continue reading "Solar Cooking Workshop in Nyala, Darfur" »
November 03, 2008
Green Power Science: Pasta Cooked through a Fresnel Lens
Continue reading "Green Power Science: Pasta Cooked through a Fresnel Lens" »
November 01, 2008
Bander Beyla: Successful Solar Cooking in Somalia
Bander Bayla was the first village in Somalia to be helped after the tsunami with solar cookers. Stoves were distributed to over 950 people. See pictures of this beautiful, remote, tsunami affected village.
Continue reading "Bander Beyla: Successful Solar Cooking in Somalia" »
Bander Beyla: Successful Solar Cooking in Somalia
Bander Bayla was the first village in Somalia to be helped after the tsunami with solar cookers. Stoves were distributed to over 950 people. See pictures of this beautiful, remote, tsunami affected village.
Continue reading "Bander Beyla: Successful Solar Cooking in Somalia" »
October 21, 2008
Solar Concentrated energy from a recycled satellite dish
This is made from:
- old 6 foot satellite dish
- recycled mirror bits
- cheap or recycled conduit
- spaghetti pot
- liquid nails or other heavy duty glue
- black muffler paint
He says in the video that this solar cooker boils a pot of water as fast (or faster) than his propane cook top.
Free energy from the sun!
October 07, 2008
GreenPowerScience Flash Cooks An Egg
It's pretty cool that this video isn't sped up or cropped in anyway. She simply shows you how easily and quickly an egg can be cooked using the power of the sun, some oil, and an excellent Fresnel lens.
That's just neat.
October 05, 2008
The Chief of Solar Cookers
own words "IT'S JUST THE POWER OF THE SUN!!!"
Onyemaechi Chukwuemeka is the self-proclaimed "Chief of the Solar cooker." I love this dude! His voice makes listening to him like relaxinging in a warm tub. He's definitely excited about this solar cooking thing.
October 04, 2008
Spanish Omlette on a Nifty Solar Cooker
I really like how this parabola is designed to rotate and become a shield while you're working with the food and then a focuser while you're letting it cook. Seems like a very safe way to be cookign food in a solar cooker.
Continue reading "Spanish Omlette on a Nifty Solar Cooker" »
October 03, 2008
Pressure Cooker Gets Overcooked in Solar Cooker
Pressure cooking is a method of cooking in a sealed vessel that does not permit air or liquids to escape below a preset pressure. Because the boiling point of water increases as the pressure increases, the pressure built up inside the cooker allows the liquid in the pot to rise to a higher temperature before boiling.
Continue reading "Pressure Cooker Gets Overcooked in Solar Cooker" »
October 02, 2008
Engineers Without Borders: Solar Cooker Challenge
These are solar cooker ideas from the Engineers without borders solar cooker challenge.
Maybe you can get some ideas here for building your own solar cooker!
Continue reading "Engineers Without Borders: Solar Cooker Challenge" »
How to Make a Solar Smoker in 30 seconds or less
Continue reading "How to Make a Solar Smoker in 30 seconds or less" »
October 01, 2008
A Meal from solar cookers
A Meal from solar cookers
Carrie and I decided that it would be fun to eat an entire meal cooked by the sun.
So, we took our three cookers. In one, we placed leftover chili. In another, we placed potatoes.
And in a third, we placed Joan's rice pudding (for dessert). Thanks Joan!
All three videos are posted below (we made them for YouTube as individual videos, but we ate this as a full meal).
Other than the mildly disappointing results from the sun not cooking the rice pudding (simply because we didn't get it outside early enough in the day, we were very pleased with how this meal turned out!
Baked Potatoes wrapped in foil and cooked in an eagle solar cooker