Difference between revisions of "Solar Cooker - diameter 1.4m"

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* Technical documentation
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: Creation of plans, parts lists, assembly instructions
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: Peer-Reviews by the community, team members, experts etc.
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: Among some revised and improved aspects of the project, prior to the publication of the plans, we can mention:
: Among some revised and improved aspects of the project, prior to the publication of the plans, we can mention:
:: * Improvements in the presentation format of technical notes, they include illustrations on manufacturing
:: * Simplified design of the parabolic segments, achieving a very precise shape only by matching the rivet holes between adjacent segments
:: * Using a template with a grid for quick copying of the airfoil and manufacturing of the blades
:: * Inclusion of a circular strap to give strength to the plate and better hold the clamps
:: * Use of metal straps to hold the Savonius internal blade (version 0.02 - part 1.18)
:: * Simplification of the structure with welded and complete profiles
:: * Simplification in the H-shape of the turbine structure, without requiring tensioning trusses in it
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==== 5. Manufacturing, tests and improvements ====
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Revision as of 01:10, 25 January 2023


Solar Cooker - diameter 1.4m

Basic Data

Category: Solar cooker

Keywords: solar, oven, parabolic, energy, reflector, cook, food, watt, boil, mirror

License: CC BY-SA 4.0

Organization: OHO

Project status: Active

Certification status: In process

Technical documentation

Maturity of the project: prototype


Contains PDF-drawings: Yes

CAD files are editable: Yes

Assembly instructions are published: Yes

Bill of materials is published: Yes







no

yes yes








Oho cs14 render1.jpg

Description

Based on: https://www.youtube.com/watch?v=joJRrljm30g--

Technical documentation


Project development

Based on the DIN 2221 standard, among others, OHO has established a series of stages in which the satisfactory completion of this project was carried out

1 Feasibility study


Manufacturing as OSAT technology is possible?

Oho cs14 002.jpg
  • Materials, components
Required materials and components can be sourced or replaced locally?
✓ Yes,
All the materials can be found in local environments, in the case of the reflective coating it may be necessary to purchase it online, however it is not a material that is difficult to access
Oho cs14 joJRrljm30g.jpg
  • Manufacturing processes
Required manufacturing processes can be povided locally?
✓ Yes
This is a type of project that is normally developed with local technologies, no specialized knowledge or complex equipment is required to manufacture this cooker
  • Specific training
Is specific training for manufacturing necessary and can be provided?
✗ No
No specific training is required for the execution of this project, only general knowledge about workshop processes
  • Sustainability
Do all materials and processes meet the sustainability criteria?
✓ Yes
The product and its production process can be considered as sustainable

2 Market analisis and requirements Functional and quantitative requirements


Functional and quantitative requirements

  • Market analysis
Analysis of the current products on the market:
Pdc 7fKybccRAUo.jpg
GDAE10 Portable Solar Cooker, 1800W 5ft Dia Outdoor Camping for Solar Heating, Visual Education or DIY Solar Concentrator 59" Dia
* Price [USD]: 120
* Source: amazon
* Country: USA
* Machine condition: New
* Indicated power [W]: 1800
* Maximum temperature [°C]: 350
* Reflective area [m2]: 1.7
Oho cs14 NytdwuPgh1c.jpg
Deluxe Portable Solar Oven with Complete Cookware, Thermometer and Dehydrating Rack by Sunflair
* Price [USD]: 160
* Source: amazon
* Country: USA
* Machine condition: New
* Maximum temperature [°C]: 140
Oho cs14 A18Dab6B1uY.jpg
Sun-Mitra Square Shape Solar Cooker, 525X525mm
* Price [USD]: 94
* Source: amazon
* Country: India
* Machine condition: New
* Maximum temperature [°C]: 200
* Reflective area [m2]: 0.28
Oho cs14 APH1oQ3Va5Q.jpg
MrMapMax Portable Solar Stove 4.5L Large Capacity Outdoor Solar Oven Camp Stove with Thermometer for 2-3 People Backpacking Hiking Family Party
* Price [USD]: 240
* Source: amazon
* Country: USA
* Machine condition: New
* Indicated power [W]: 200
* Maximum temperature [°C]: 288
* Reflective area [m2]: 0.13
  • Requirements definition
    Definition of the main technical data:
    • Power [W]: 1000
    • Maximum temperature [°C]: 200
    • Reflective area [m2]: 1.5
  • Optimal functions and features
    Definition of necessary/optional functions and features:
    • Includes mobile support structure: Mandatory
    • Solar orientation indicator: Mandatory
    • Made with durable materials: Mandatory

3 Search & analisis DIY technologies


The best technical solutions for all parts and components

Oho cs14 search1.jpg
  • OHO Search engine
Customization of the OHO search engine
Since it is a highly known product in the DIY sector, our repository has several examples within the category of solar cookers
  • Manual search
Manual search in Google, Youtube, special websites etc.
Oho cs14 7rYWtHUBniY.jpg
* Title: DIY solar cooker from scrap.. how to make solar parabolic dish
* Views: 54000
* Likes: 630
* Comments: 60
* Detail: Parabola with radial segments, cardboard shell
Oho cs14 v5CdNH3sQT0.jpg
* Title: How to make a simple solar cooker to understand the use of solar energy
* Views: 2200000
* Likes: 16000
* Comments: 909
* Detail: Box model
Oho cs14 RWX5HH6HyPI.jpg
* Title: Parabolic Satellite Dish Conversion - Solar Cooker
* Views: 2300000
* Likes: 17000
* Comments: 1036
* Detail: Recycled antenna disc
Oho cs14 aXxwHWY0lLs.jpg
* Title: How to make a solar cooker using mirror
* Views: 17000
* Likes: 281
* Comments: 19
* Detail: Mirror coating
Oho cs14 ywBT6QBLKBQ.jpg
* Title: Building instructions for a solar cooker 1,400 watts (part 3 of 4)
* Views: 9000
* Likes: 25
* Detail: Parabola with conic segments
Oho cs14 Ew3RbeuntMg.jpg
* Title: How to Make Copenhagen Solar Cooker
* Views: 30809
* Likes: 420
* Comments: 43
* Detail: Panel template or Copenhagen
Oho cs14 joJRrljm30g.jpg
* Title: Vajra Solar Cooker Project Nepal
* Views: 12000
* Likes: 101
* Comments: 9
* Detail: Reference equipment, Semi-industrial design
Oho cs14 cSrxndJZOjE.jpg
* Title: How to build a solar cooker with parabolic reflector part 3
* Views: 1770
* Likes: 797
* Comments: 47
* Detail: more info here

4 Development and documentation


Plans and specifications of all parts and components

Oho cs14 007.jpg
  • Analisis of functions & structures
Analysis of functions, assemblies and components
Based on the model taken as a reference, the necessary assemblies were devised to make up the equipment, with the following premises:
* Parts made of metal
* Parabolic disk of radial segments
* Reflective surface integrated into the pieces (without glued paper or mirrors)
* Support structure with wheels to facilitate continuous orientation
  • Technical solutions
Development of technical solutions for assemblies and parts
A review of the different options adopted in the DIY machines was carried out to meet each design requirement, observing the following variants for some evaluated details:
* Evaluated detail: Main design
  • Radial dish
  • Annular parabolic
  • Box
  • Panel
* Evaluated detail: Reflective coating
  • Aluminum
  • Mirrors
  • Adhesive paper
Although there is no reference in this regard, it is proposed to use a chrome paint to achieve the reflective surface, a commercial reference is specified in the technical notes
See related comments: Discussion
  • Technical documentation
Creation of plans, parts lists, assembly instructions
Once all the necessary information was available, the project plans were prepared
  • Peer-Reviews
Peer-Reviews by the community, team members, experts etc.
Among some revised and improved aspects of the project, prior to the publication of the plans, we can mention:
* Simplified design of the parabolic segments, achieving a very precise shape only by matching the rivet holes between adjacent segments
* Inclusion of a circular strap to give strength to the plate and better hold the clamps
* Simplification of the structure with welded and complete profiles


+ General Reviews General Reviews

Parts list

Pos. Qty. Part Name Part code Part Type Specifications Review Status Show All Comments
A1 1 3D Views

Edit Edit All

Item Reviews
A2 1 3D Explosion Views

Edit Edit All

Item Reviews
B Parts list

Edit Edit All

Item Reviews
C Technical notes

Edit Edit All

Item Reviews
1.00 1 Reflector

Edit Edit All

Item Reviews
1.01 20 Parbolic segment 26 gauge galvanized steel sheet (0.48 mm)

Edit Edit All

Item Reviews
1.02 2 Articulation support Angle 1 1/2*1 1/2*1 1/2*4mm*150mm

Edit Edit All

Item Reviews
1.03 4 Clamp channel Round iron pipe 1 1/4", sch40*150mm

Edit Edit All

Item Reviews
1.04 8 Clamp ear Plate 1*1/8"*150mm

Edit Edit All

Item Reviews
1.05 4 Articulation screw Hexagonal bolt M8*16mm, grade 5

Edit Edit All

Item Reviews
1.06 4 Hinge nut Hexagonal nut M8, grade 5

Edit Edit All

Item Reviews
1.07 4 Hinge washer Flat washer for M8

Edit Edit All

Item Reviews
1.08 6 Clamp screw1 Hexagonal screw M6*12mm, grade 5

Edit Edit All

Item Reviews
1.09 2 Clamp screw2 Hexagonal bolt M6*40mm, grade 5

Edit Edit All

Item Reviews
1.10 8 Clamp nut Hexagonal nut M6, grade 5

Edit Edit All

Item Reviews
1.11 2 Clamp bolt Wing bolt M8*12mm

Edit Edit All

Item Reviews
1.12 2 Clamp nut Hexagonal nut M8, welded

Edit Edit All

Item Reviews
1.13 1 Reflector band Plate 1*1/8"*4473mm

Edit Edit All

Item Reviews
2.00 1 Structure

Edit Edit All

Item Reviews
2.01 2 Fixed shaft Round iron pipe, 1", sch40

Edit Edit All

Item Reviews
2.02 6 Burner beams Plate 1*1/8"*200mm

Edit Edit All

Item Reviews
2.03 6 Burner support Round iron bar 10mm*100mm

Edit Edit All

Item Reviews
2.04 4 Strut 1*1"*2mm*830mm square iron pipe 1*1"*2mm*830mm

Edit Edit All

Item Reviews
2.05 2 Base1 Square iron pipe 1*1"*2mm*1700mm

Edit Edit All

Item Reviews
2.06 2 Base2 Square iron pipe 1*1"*2mm*800mm

Edit Edit All

Item Reviews
2.07 4 Adjustable wheel Caster type adjustable wheel or similar, diameter 2".

Edit Edit All

Item Reviews

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