A Study on the Efficiency of Solar Radiation Collectors Applying for Agricultural Products and Food Drying

Reducing the use of conventional energy in agricultural production and food processing via using renewable is one key points to protect our environment. Solar radiation might be an excellent source for replacing traditional heat sources drying technology. This study aims analyze investigate efficiency different solar collectors apply products drying. Seven have been developed manufactured experimental investigation. The first a flat plate collector. second pipe collector covered by transparent polyethylene. third copper placed on focus parabolic trough. fourth glass trough (Experimental testing with fluid air). fifth (Experiment water). sixth cylinder no extent (the parabola insulated). last extended investigation results indicate that depends intensity, mass flow rate heating receiver substances, structure collectors. high intensity generates efficiency. Pipe extension insulated); highest 50.58% at air 0.218 kg/s while Glass air) has lowest as 4.55%.