SunWorks Solar Food Dryer
Eben Fodor - Sunworks
SunWorks Solar Food Dryer is a drier that uses a distinctive air flow pattern for an improved sun drying performance.
SunWorks Solar Food Dryer is a compact, portable, 2-tray dryer completely powered by solar energy with a weatherproof design for a long life of regular use. The dryer uses a combination of both direct and indirect heating from the sun as well as a unique airflow and vent controls to achieve the best possible drying.
Similar convection/radiation tray type cabinet models have been implemented by NGOs, but there is no verification yet on whether SunWorks product itself has been deployed through other organizations. It is currently available online as a ready-to-assemble kit from SunWorks.
349 USD (Within the U.S., entire kit, complete and ready to assemble with instructions)
Additional 100 – 200 USD for international orders.
Instructional books: The end user can also build this SFD from plans provided in “A Mother Earth News Wiser Living Series” book by Eben Fodor titled, “The Solar Food Dryer: How to Make and Use Your Own Low-Cost, High Performance, Sun-Powered Food Dehydrator” available on Amazon.com from 8.52 – 12.77 USD or at New Society Publishers’ website for 14.95 USD.
Alvan Blanch SD22-(X) solar drier, Hanging Food Pantry – Solar Food Dehydrator
Goal 2: Zero hunger
The manufacturer does not produce already-assembled solar dryers. They provide the various components and the user can assemble the product following the method outlined in The Solar Food Dryer book.
The SunWorks Solar Food Dryer Kit for assembly can be purchased online through Google Checkout at the SunWorks website. International orders outside of the U.S. are urged contact SunWorks to discuss logistics.
The end user can also build this Solar Food Dryer from plans provided in “A Mother Earth News Wiser Living Series” book by Eben Fodor titled, “The Solar Food Dryer: How to Make and Use Your Own Low-Cost, High Performance, Sun-Powered Food Dehydrator“.
Brief installation instructions are available on SunWorks’ website, however they do not provide detailed instructions on installation.
The amount of produce that can be dried
Time to dry product, measured in hours
Hold volume, measured in cubic meter
Temperature range for drying the produce, measured in degrees Celsius
Is there a mechanism to control temperature?
The number of trays in the system
The materials used in construction
The SunWorks™ Solar Food Dryer uses a unique “Z-Flow” airflow pattern to greatly improve performance and drying speed. This airflow is powered by the buoyancy of warm air in the dryer, referred to as natural convection or the solar fan.
• The complete wood cabinet ready to assemble
• All hardware, handles, vent adjuster, and fasteners
• Solar glazing with aluminium frame
• Two sturdy aluminium screen frames
• SunScreen™ polypropylene screens
• Aluminium absorber plate, powder-coated flat black, cut and drilled to fit
• Screen material for all vent openings
• A large-dial thermometer for monitoring drying temperature
• Assembly instructions and operating tips
Dimensions (LxWxH) (cm): 76 x 68.5 x 71
Polypropylene screens on which food is placed during drying have a shorter usable life and may require replacement at some interval determined by frequency of product use.
Absorber plate is rust-free, black powder-coated, heavy-duty aluminium.
Aluminium screen frames are sturdy, lightweight, easy to load and clean, and do not rust.
SunScreen™ polypropylene screens with high-quality polycarbonate glazing has 10-year manufacturer warranty for outdoor use.
The dryer is designed to be easy to use and easy to move around. It is also made to deliver maximum solar drying performance while allowing for easy control of drying temperature with adjustable venting controls.
Potential safety hazards involved in the use of this product include low degree burns from handling hot trays.
Electric backup heating using incandescent electric lightbulbs.
• 2 compact, surface-mounted, porcelain light fixtures
• 2 – 200 Watt incandescent, general purpose light bulbs
• 3 feet of 16-gauge lamp cord and plug (cut from 6-ft. black or brown extension cord)
• 4 – 1-inch-long, #8 pan-head metal screws for mounting fixtures
• Small package of 16-guage, spade type, wire terminals (6 needed)
Lingayat, A. B., Chandramohan, V. P., Raju, V. R. K., and Meda, V., 2020, A review on indirect type solar dryers for agricultural crops–dryer setup, its performance, energy storage and important highlights. Applied Energy, 258, pp 114005.
Stiling, J., Li, S., Stroeve, P., Thompson, J., Mjawa, B., Kornbluth, K., and Barrett, D. M., 2012, Performance evaluation of an enhanced fruit solar dryer using concentrating panels. Energy for sustainable development, 16(2), pp 224-230.
Fodor, E. V., 2006, The Solar Food Dryer: How to Make and Use Your Own Low-Cost, High Performance, Sun-Powered Food Dehydrator. New Society Publishers.
Leon, M. A., Kumar, S., & Bhattacharya, S. C., 2002, A comprehensive procedure for performance evaluation of solar food dryers. Renewable and Sustainable Energy Reviews, 6(4), pp 367-393.
Exterior plywood cabinet of product is formaldehyde-free and meets California Air Resources Board (CARB)-Phase 2 standards
The manufacturer is currently out of stock and does not plan to continue production of dryers.
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