flat bed solar dryer (polycarbonate)

11/1/24

ashram got a project to delivery the flat bed dryer Prasad sir, Himanshu sir assigned me work to doo

THE PRINCIPAL AND WORKING PROCESS OF FLAT BED DRYER

STEPS ;

Solar dryer receives the energy from sun and it dry the crops vegetable fruit

Solar dryer consists with different main parts

Black material is coated on heating element inside the box to absorb more heat from solar radiation . outer frame of made up of heat insulating material to maintain the temperature .when direct or diffuse solar radiation will incident then it will not exit .

There are holes at upper and lower portion of the box for circulation of air .

First of all we keep the fooding material inside the box and close the roof glass

When solar radiation incident on black coating through transparent glass then heating aliment absorb the heat from solar radiation due to heat moisture of fooding material get vaporized and vapor droplets accumulates on the roof glass

As well as cold air enter from lower portion of the box and that air get heated

Due to hot air fooding material rapidly get dry and heated air exit throught upper hole

Vaporized water droplets also remove with hot air in the atmosphere and placed fooding material like vegetables get dry

13/1/24

I had bought angles from village, started making required lengths 6inch (4 no.s ), 3inch (4no.s) and made drilling for the angles