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Vincent Mwalya
Jun 14, 2021
In Workspace
Team Members: Vincent Mwandikwa Mwalya, Brenda Nthenya Kioko, Peter Kasyoki Musembi Summary: The problem of post-harvest losses has been present for a long time. For maize especially, cases related to aflatoxin have always been present. Such incidences create a shortage in maize supply and ultimately the price of a bad of flour also increases. Finding every possible mean to reduce such becomes very crucial. One way is to ensure proper drying of the maize before storage. This project presents the design, construction and performance evaluation of Small Scale Dc Solar Powered Food Dehydrator used to dry maize by use of locally available materials. It was designed in such a way to incorporate both direct solar radiation and preheated air warmed during its flow through a Positive Temperature Coefficient (PTC) Air Heater. The dehydrator system consists of a heating chamber, fans, air vent system for air circulation, control unit and temperature and humidity sensor for temperature and humidity measurements. The prototype dryer designed was fabricated and forced convection was implemented to reduce the drying time. #agriculture
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