Solar Drier – Model SD 22-3

The Solar Drier – Model SD 22-3 is made of mild steel painted Hammerite blue. It has fully adjustable inlet tray and outlet doors for temperature regulation and a translucent acrylic sheet. Solar collector tray is a 3mm mild steel painted black. The drier also has a chimney in spiral wound galvanised ducting and a woven screen for preventing insect entry.

To dry products, sunlight heats the black mild steel surface of the drier, which in turn radiates heat and produces convection currents. Hot air rises through the wet product in the stainless steel trays, and warm humid air exists through the exhaust chimney. The trays can be easily accessed through a door in the side of the drying chamber. The time it takes for the drier to achieve a dried food product is dependent on the initial moisture content in the food product, slice thickness and environmental conditions such as air relative humidity, sunshine hours and temperature. Hence, it may take 1 to 72 hours to achieve a desired dried food product.

A Nigerian technical team, based in Benin City, handles all customer support in Nigeria – as well as some of the maintenance work across Africa. Alvan Blanch also has a number of commissioning engineers in the UK who travel to clients worldwide.

5-10 years

Unknown

The potential hazard associated with the operation of this product include some burns.