Rancang Bangun Prototype Kolektor Surya Tipe Plat Datar Bersirip untuk Penghasil Panas pada Pengering Produk Pertanian dan Perkebunan

Abstract

Drying is one way to reduce the water content. The drying process is commonly known direct drying in the sun and are most commonly used by farmers in Indonesia to dry their crops. This is still a very conventional way and had a lot of obstacles one of which is the weather factor. Erratic weather will greatly affect the quality of the crop is dried. The water content is too high due to heat is not sufficient to reduce the moisture content will lead to the development of microbes or fungi that can lead to decay. Therefore, a tool designed to help farmers maximize their drying agricultural products. Is a tool designed solar collectors flat plate type finned with size 2 mx 2 mx 0.17 m. Solar collector consists of a layer of wood, sterofoam and rockwoll as insulators, aluminum plate as a heat sink and as a cover glass. In addition to the collector, drying chamber is also designed as a drying agricultural products with a size of 2 mx 1 mx 1 m. The samples used in the testing of this tool is manioc (cassava) and red chili. To obtain the efficiency of the collector rather than testing for 2 (two) days in sunny conditions. From the results obtained by the analysis carried an average heat radiation that can be absorbed by the collector is 1856.755 watts, the average heat loss in collector is 442.57 watts and the average efficiency of the solar collector obtained during the testing process is 69.70 %