Showing posts with label Sun Power. Show all posts
Showing posts with label Sun Power. Show all posts

Monday, 3 September 2007

Making and using a solar cooker

By Joe Radabaugh From http://www.backwoodshome.com/articles/radabaugh30.html
It was during those days that I saw my first solar cooker and began the hobby that led to the cooker described in this article. I started out building the most efficient styles I could come up with. Later, while keeping this efficiency, I strove to simplify the building process, the materials needed, and the actual use of the cooker. The cooker is now basically cardboard, aluminum foil, and glass. Yet, because of the design, it is remarkably efficient and durable.
It looks so simple now, but you should realize that this simplicity took years of effort and many accidental breakthroughs. The testing for this cooker is now complete.
What I have included here is a very good starter model that can lead you and your family to a lifetime of enjoyment without threatening your pocketbook. A solar cooker can easily be built for under $10. Detail...

Wednesday, 29 August 2007

Double-Angled-Twelve-Sided (DATS) Solar Cooker


by Teong H. Tan Link...
DATS cooker employs 24 small reflective panels to concentrate extra sunlight to compensate for the heat loss from not using a plastic bag. DATS cooker design is similar to a deep-focus parabolic cooker, but instead of using a true parabolic curve, multiple flat panels concentrate sunlight onto the cooking pot. Two reflective surface-angles, 45º and 60º, are used so that a bend can be introduced in between for structural rigidity to hold the cooker’s shape. This structural rigidity allows for DATS cooker to be constructed out of cardboard material.
A DATS cooker, tested in Shanghai, reached a maximum temperature of 140ºC (284ºF) inside an empty black cooking pot, on a clear sunny day with 21ºC (70ºF) ambient air temperature and a slight breeze. Eggs became hard-boiled in 30 minutes and two cups of rice cooked in 95 minutes. The cooker should be re-positioned every 45 minutes or less for better efficiency. Detail...

Related:

Tuesday, 28 August 2007

Build your own solar thermal panel from garbage dump

From Instructables.com Source The Sietch

This project will create a DIY solar hot water heater for less than five dollars (if you have access to a garbage dump). It will allow you to see the principles of solar water heating in action, and is highly customizable.
Its a great way to learn about using the renewable energy of the sun to produce useful effects, in this case hot water. You can use these instructions to build a device that will actually heat enough water to use in the home, but it would require modifications. Detail...

Related:
  • Home Made Solar Water Distiller Link...
  • Solar Thermal Panel I. Link...
  • Solar Thermal Panel Hawaii Edition Link...

Sunday, 26 August 2007

garage heat - just drink a lot of soda

From Hemmings Auto Blogs
I’ve had a few days during the HMX build while I’m either waiting for parts or waiting for something to dry and had some free time. I’m not exactly one to sit and watch TV when I have nothing planned, so I set out on another project.
While I have electricity out to the garage now, heat has been an issue all winter long. Mattar graciously lent me his kerosene heater, which did an okay job of taking the bite off the chill. Insulating the garage would go a long way to help keep the bitter Vermont cold out, but that’s a project for another day. More...

Saturday, 25 August 2007

A Homemade Solar Water Heater

From Motherearthnews.com

Last summer my family and I started digging out the foundation for our new home. However, after only two sweaty days of laboring under the Florida sun, I realized that we might be going about the whole project in the wrong order. Maybe, I thought, we should be erecting the solar water heater and shower — which we'd already planned as part of our new homestead — before actually constructing the house itself! Well, the more I considered this notion, and the more layers of grime that built up on my tribe's bodies, the more that bit of backward logic began to make a frontward kind of sense. Detail...