Objective

The objective of our project is to create a simple, yet effective, model of a solar dehydrator. Our model will have an efficient design and will be easily replicable for a child with the assistance of an adult. We hope that by designing this solar dehydrator we help children learn about solar energy and healthy food choices. We will be working closely with the group Locally Delicious, whos link can be seen below. Our final design will be documented and instructions on how to build this particular solar dehydrator will be integrated into Locally Delicious's upcoming cookbook.

Design

Our design incorporates a simple but effective model which requires very little materials to construct, yet is very efficient for dehydrating a small to moderate amount of food. Our design is 2'x3'x4" and is built on a plywood base, with a 2"x4" frame, corregated roofing, removable nylon mesh food screens framed in 1/2"x1", with a clear acrylic glass cover held in place by L-brackets, and vent holes on the top and bottom to promote air flow. This model is simple to build and the materials are easily found at your local hardware store, or recycled material can be used to reduce costs. The adjustable angle of inclination allows for maximum sunlight capture throughout the year, for data on the angle of inclination of the sun in your particular area, check out this Calculator.

Model of "Tear The Roof Off" Solar Dehydrator
Criteria Weight Constraints
Cost 9 Less than $100
Educational Value 8 Teach about measurements, solar radiation, solar dehydration, as well as healthy eating, at a 4th to 8th grade level
Reproducibility 9 Minimal tool usage, easily obtainable materials
Maintenance 6 Less than 30 minutes of maintenance required per usage
Durability 7 Must last at least 12 uses
Safety 10 Should not exceed 200 degrees Fahrenheit, also must be structurally sound
Functional 10 Must be able to adequately dehydrate fruits and vegetables
Portability 5 Must be movable by two or less people


Quantity Material Source Cost ($) Total ($)
4 Wood Wood store 5.00 |align="right"| 6.60
1 Glazing - 2' x 3', Sun-lite Water Planet 10.00 10.00
Total Cost $16.60

Fuji's and Fugees

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