Solar cooker

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m (Havn't seen/heard any activity on this for a long time. put it to non-active.)
 
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{{Project
 
{{Project
|Current=Yes
+
|Current=No
 
|Category=Crafting
 
|Category=Crafting
 
|Logo=800px-Fresnel reflectors ausra.jpg
 
|Logo=800px-Fresnel reflectors ausra.jpg
 
|Participants=User:Ivom,
 
|Participants=User:Ivom,
|Short description=Design and implement a low cost solar heat aggregator for cooking or electricity production
+
|Short description=Design and implement a low cost solar heat aggregator for cooking (heat transfer) or electricity production
 
}}
 
}}
 
=Idea=
 
=Idea=
An experiment with recycled hard disk platters which are exellent reflectors for sun light. A solar cooker is developed by building an array of mirrors to aggregate light to a focal point. The energy can either be foccssed to a cavity or the heat  could be transfered to store the heat elsewhere to drive a generator a peltier element other stuff.
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An experiment with recycled hard disk platters, which are excellent no-cost reflectors for sun light. A solar cooker is developed by building an array of mirrors to aggregate light to a focal line  or point. The energy can either be focused to a cavity or transferred to store the heat elsewhere to drive a generator a Peltier element, or other stuff.
  
 
=Parts=
 
=Parts=
* Recycled harddrives platters
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* Recycled hard-drives platters
* blackboxed cooking cavity of
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* blackboxed cooking cavity
* glass or copper (inox-plated) tube
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* glass or copper (inox-plated) tubing (250C+ temps!)
* CNC milled directors for the platters
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* CNC-milled directors for the platters
* possible deformators to create semi parabolic mirrors, needs extra fabbing
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* possible deformators to create semi-parabolic mirrors, needs extra fabbing
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* Extra solar PV-panel for DC-current
  
=Some references=  
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=Some reference ideas=  
[http://solarcooking.wikia.com/wiki/Cylindro-parabolic_solar_cookers Cylindro-parabolic solar cookers]
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*[http://solarcooking.wikia.com/wiki/Cylindro-parabolic_solar_cookers Cylindro-parabolic solar cookers]
[https://secure.wikimedia.org/wikipedia/en/wiki/Parabolic_trough]
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*[https://secure.wikimedia.org/wikipedia/en/wiki/Parabolic_trough Parabolic_trough]
[https://secure.wikimedia.org/wikipedia/en/wiki/Compact_Linear_Fresnel_Reflector]
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*[https://secure.wikimedia.org/wikipedia/en/wiki/Compact_Linear_Fresnel_Reflector Compact_Linear_Fresnel_Reflector]
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* [http://solarcooking.wikia.com/wiki/Indirect_solar_cookers Indirect solar cooker]
  
 
=Calculus=
 
=Calculus=
* Hard disks platters reflective surface measure about ((95mm-25mm)/2)^2 *PI = 0,001225 * 3,141593 = 0,003848 m^2 = (3.8 x 10-3)
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* Hard disks platters reflective surface measure about:
* Solar constant =  
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((95mm-25mm)/2)^2 *PI = 0,001225 * 3,141593 =  
*
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0,003848 m^2 = (3.8 x 10-3)
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* Solar constant = 1.361 kW/m² [https://secure.wikimedia.org/wikipedia/en/wiki/Solar_constant wikipedia]
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* The exact amount of yield to produce is not set yet. Please assist, here depending on the applications: Cooking coffee, frying eggs, powering a peltier element.
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*
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=Layout=
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A compact linear fresnel reflector-array is easy to adjust to the earth motion. [https://secure.wikimedia.org/wikipedia/en/wiki/Packing_problem Packing circles in squares]
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=Tracking=
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Help with some arduino-project with some suntracking software a stepper-motor and we are all-set. Oh, some wood working is needed, please wheel in some euro-pallet please.
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=Reflective platter surface deterioratio=
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* The disk platters normally live in a semi dust-free enclosure. Using them under semi-harsh conditions where heat, weather and PM10 or PM5 conditions is to be discussed. From november 2011 to march 2012 a platter will be actively exposed to the harsh conditions the Antwerp Ring poses to 100.000 living under less-than 500m distance. The disks are dead OK, but the sputtered reflective surface might deteriorate seriously.
 +
* How to measure reflectance properly? Please add your suggestions to the talk page.

Latest revision as of 09:59, 23 August 2013


Solar cooker
What:
Design and implement a low cost solar heat aggregator for cooking (heat transfer) or electricity production
800px-Fresnel reflectors ausra.jpg
Participants:
User:Ivom
Category:
Crafting


Contents

Idea

An experiment with recycled hard disk platters, which are excellent no-cost reflectors for sun light. A solar cooker is developed by building an array of mirrors to aggregate light to a focal line or point. The energy can either be focused to a cavity or transferred to store the heat elsewhere to drive a generator a Peltier element, or other stuff.

Parts

Some reference ideas

Calculus

((95mm-25mm)/2)^2 *PI = 0,001225 * 3,141593 = 0,003848 m^2 = (3.8 x 10-3)

Layout

A compact linear fresnel reflector-array is easy to adjust to the earth motion. Packing circles in squares

Tracking

Help with some arduino-project with some suntracking software a stepper-motor and we are all-set. Oh, some wood working is needed, please wheel in some euro-pallet please.

Reflective platter surface deterioratio

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