A comparative study of the efficiency of solar dryer and dried naturally working principles of greenhouse dryer. When the weather gets solar heat makes the humidity.The hot weather will bring the moisture from the banana flows out of the dryer to the ambient air by volume 1.8 g, ambient air temperature 32-37 education C. The average temperature in the drying 40-65 education C and change the color of the banana. The dried naturally will be widely used in households, for rural areas mostly.Low efficiency, use for long periods in dry And the damage from rain or insects disturb me. This principle, relying on raw materials solar direct. And hot air is moving to bring the moisture from the raw material by using natural methods.Affordable and will take a long time.
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