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Revision as of 22:15, 5 April 2011
Abstract
Background
Locally Delicious is a group of women collaborating on a new book titled "Lunch Box Envy." Several different Engineering 215 projects are to be included. The School solar dehydrator is one of them. Locally Delicious
Team Member Pages: Alisha Sughroue Mary Wooldridge Justin Thompson James Courtney
Objective and Criteria
Criteria | Weight | Description |
---|---|---|
Safety | 10 | This is defined as a structure being stable enough for children, having safe building materials for food quality, and having a completely finished project to protect children against loose material or sharp edges. |
Cost | 9 | Design must cost less than $300. |
Reproducible | 9 | This is defined as the ease of following the directions and constructing the solar dehydrator. |
Durability | 8 | This is defined as having a structure that is able to last two to three years with regular use by adults and children. |
Weather Resistance | 8 | This is defined as the structure’s ability to hold up against all types of weather. |
Ease of Use | 7 | This is defined as a structure that has a design that is easily operated on a child’s level. |
Efficiency | 7 | This is defined as the project's ability to dry food quickly and to dry the food to the operator’s expectations of good quality dehydration. |
Aesthetics | 4 | This is defined as the project with a presentable and school appropriate design. |
Description of Final Project
This project was to design a solar food dehydrator to be replicated by schools.
Costs
Materials | Use | Quantity | Project Cost ($) | Projected Cost ($) |
---|---|---|---|---|
Small Cabinet | Dryer Box | 1 | 6.00 | 40.00 |
Screen | Covering End of Solar Collector | 1 | 1.00 | 4.00 |
Styrofoam Insulation | Insulation of Solar Collector | 4 | 1.50 | 60.00 |
Copper Sheet Metal | Heat Conductor for Solar Collector | 63" X 27" | 40.00 | 40.00 |
Metal Roof | Roofing for Weather Protection | .97 tons | 5.00 | 12.00 |
Insulation | Insulation for Dryer Box | 5'X 4' | 22.82 | 22.82 |
Polycarbonate and Fitting Screws | Glazing Material | 10' X 26" | 45.89 | 45.89 |
Screws, Sealant,Latch, and Polyfoam | Putting together Solar Collector Glazing | N/A | 30.91 | 30.91 |
Tacks | Securing Insulation | 1 box | 1.34 | 1.34 |
Caulking | Not used | 1 tube | 5.84 | 0.00 |
Hinges | For Cabinet Doors(not used) | 2 packs | 9.88 | 0.00 |
Hinges and Piping | Cabinet Doors and Connecting Solar Collector | N/A | 9.27 | 9.27 |
Nylon Mesh | Drying Racks | 3 yards | 6.08 | 6.08 |
All Lumber | Collector Box, Drying Racks, and Base | N/A | 0.00 | 33.00 |
Polyvert Closure | Set Glazing on top of | 6 | 5.99 | 5.99 |
Paint | Whole project | 1 can | 31.00 | 31.00 |
Total | 222.52 | 265.31 |