parabolic solar cookers
Download
Skip this Video
Download Presentation
Parabolic Solar Cookers

Loading in 2 Seconds...

play fullscreen
1 / 14

Parabolic Solar Cookers - PowerPoint PPT Presentation


  • 125 Views
  • Uploaded on

Parabolic Solar Cookers. Lonny Grafman Most Images from Appropedia Outline Background Basics Design Examples More Examples Math and Physics Resources Discussion. 100 0 watts/m 2. Solar Box Cooker a ka Solar Oven. Solar Parabolic Cooker. The Parabola. y=a x 2 f=1/(4a). y. f. x.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Parabolic Solar Cookers' - solada


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
parabolic solar cookers
Parabolic Solar Cookers
  • Lonny Grafman
  • Most Images from Appropedia
  • Outline
    • Background
    • Basics
    • Design Examples
    • More Examples
    • Math and Physics Resources
    • Discussion
slide3

Solar Box Cooker

  • aka Solar Oven
slide6

y=ax2

f=1/(4a)

y

f

x

the parabola definition
The Parabola - Definition

http://www.cut-the-knot.org/ctk/Parabola.shtml#Theorem1

the parabola reflection
The Parabola - Reflection

http://www.cut-the-knot.org/ctk/Parabola.shtml#Theorem1

slide9

The Paraboloid

  • The Parabola
slide10

Design Criteria:

  • Use of local materials
  • Efficiency
  • Durability
  • Ease of use
  • Ease of construction
  • Cost
  • Impact on environment
  • Impact on lifestyle

Design Objective:

To create a solar cookerfrom local invasive species and waste materials that can pasteurize water and be a cooking alternative to the use of fossil fuels.

slide11

Results:

  • Equation: y =.5x2
  • Time to boil quart: ~2 hrs
  • Deformation Lessons Learned:
  • more blackberry runners
  • more rigid material for rings
  • Reflectivity Lessons Learned:
  • pampas grass too lumpy
  • no dull, small can lids
protection from dazzles and burns
Protection from Dazzles and Burns
  • Appropriate focal point size
  • Glasses and gloves
  • Deep dish focus
  • Physical barrier
  • Physical separation
  • Appropriate system size
ad