Studi Eksperimental Efisiensi Rumah Pengering Umbi Porang Sistem Hibrid (Energi Surya–Biomassa) dengan Variasi Beban Pengeringan

Abstract

Driying is one of the most important post-harvest processes, considering that this process absorbs a lot of energy. It is estimated that 12% of the total energy used in the food industry and agriculture is for drying. The accumulated heat it used to dry the Porang in the Solar Dryer. The results showed that the final moisture content of porang tubers after drying for each load variation obtained the lowest value of  9,90%wb at a loas variation of 10 kg and the highest drying rate of 0,550 kg/hour from the assumption of an initial moisture content of 70%wb. While, at the load variation of 8,5 kg (H1) and 14 kg (H3), the final moisture content still met the standards, namely 11,4% wt and 10,98% wt with the lowest drying rate 0,330 kg/hour (H3). If it is related between the distribution of temperature and humidity in the drying with the drying rate, specific energy consumption (KES), and drying efficiency, then there are differences between these variables. This shows the results of an inverse comparison between specific energy consumption, but is directly proportional to the drying rate and drying efficiency