Solar Cooker - diameter 1.4m

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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

5. Manufacturing, tests and improvements


To date, this project is on hold for manufacturing The purchasing, prototype manufacturing, testing, and documentation updating sub-processes, will be developed once the manufacturing stage is executed

6. Certification DIN Spec 3105


  • Formal audit
Pdc certification-process-diag-page1.jpg
Verification of the completeness of the documents:
* Parts list
* Drawings of all parts and assemblies
* Assembly instructions
* Optional documents, technical notes
* These formal aspects have been verified, the project meets them satisfactorily
  • Assignment of reviewers
    Search and assignment of peer-reviewers with sufficient expertise:
  • Peer-reviews
    Realization of the peer reviews, technical clarification, improvements:
* In process
* In the Parts list section, some comments have been made


+ General Reviews General Reviews

Parts list

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

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Item Reviews
A2 1 3D Explosion Views

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Item Reviews
B Parts list

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C Technical notes

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1.00 1 Reflector

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

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

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

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

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

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

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Item Reviews
1.07 4 Hinge washer Flat washer for M8

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

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

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1.10 8 Clamp nut Hexagonal nut M6, grade 5

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1.11 2 Clamp bolt Wing bolt M8*12mm

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Item Reviews
1.12 2 Clamp nut Hexagonal nut M8, welded

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

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Item Reviews
2.00 1 Structure

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

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

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

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

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

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

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

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Item Reviews

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