Solar Conduction Dryer
The Solar Conduction Dryer (SCD) is a solar powered food dehydrator that uses all three types of heat transfer modes (conduction, convection and radiation) to dry food.
The solar conduction dryer (SCD) is a solar powered food dehydrator, that uses all three types of heat transfer modes; conduction, convection and radiation. The product’s business model aims to integrate key stakeholders to create an ecosystem where the SCD creates a business opportunity for dehydrated food commercialization.
The product is produced in India and distributors are being created in Kenya, also it is distributed through some NGO’s and implementation agencies.
A 10-12 kg capacity SCD has a $542.76 price in India (converted from Indian Ruppes 6/23/2017) and the cost outside India is $640. For a 100 kg capacity SCD the price in India is $4342.13 and outside India $5,120. These prices do not include transportation and duties. Interview with representative
The product is intended for individual women and small farm holders.
Made to order, loading capacity is 10-12 kg but can be customized per customer need.
Directly from manufacturer; S4S technologies.
The SCD has four drying chambers constructed from hollow sections of stainless steel. Each chamber has a drying tray which is covered with transparent plastic. The trays are coated with black color special food grade coating, where the products to be dried are placed. A low height air vent to create air current is provided at the middle of the dryer along horizontal direction which also separates the drying chambers in two parts.
The manufacturer offers technical support as well as training through a partnership with NGO’s and implementation agencies.
- Can be easily assembled by two people locally.
- Has a capacity of 12 kg/dryer.
- Able to maintain 45% more nutrients.
Dehydrated products retain 80%-90% of key nutrients. It is said to increase in shelf life of products from 6 -12 months and to reduce 40% in post harvest losses. It meets international standards in terms of microbial count and aflatoxin level. The product is said to save 20 tons of CO2 throughout its lifetime. Interview with representative
Manufacturer claims that product is tested and verified by international food laboratories.
Risk of burns from handling hot trays.
The SCD designer identifies food processing companies which are interested in buying dehydrated products, and makes field trials to create samples for those companies so that a business contract can be made. The designer also works closely with NGO/implementation agencies to train farmers on the dryer’s usage, processing and packaging.
Borah. A, Hazarika. K, Khayer S.M. 2015. Drying kinetics of whole and sliced turmeric rhizomes (Curcuma longa L.) in a solar conduction dryer. Information Processsing Agriculture. 2(2):85-92.
Testing and verification of international standards for microbial count and aflatoxin levels through international food laboratories.
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