Uji Kinerja Alat Pengering Kolektor Surya dengan Reflektor Tipe Parabola pada Berbagai Jenis Cabai (Capsicum Annuum L.)

Abstract

The utilization of solar energy as an alternative energy source serves a strategic solution to enhance post-harvest efficiency in agricultural commodities. This study aims to evaluate the performance of a solar collector dryer with a parabolic reflector on four types of chili peppers (Capsicum annuum L.) using varying air flow velocities of 0,5; 1;1,5; and 2 m/s. Observed parameters include temperature, relative humidity, moisture content, drying rate, and the effective capacity of the dryer. The results showed that all treatments successfully reduced the moisture content of chili peppers from approximately 85% to 10%, in accordance with the SNI standard. An air flow velocity of 1,5 m/s demonstrated the most stable performance in reducing moisture evenly, with sufficiently high temperature that remained safe for preserving chili quality. Although statistical analysis showed no significant effects, this treatment combination demonstrated the most optimal practical performance. The dryer is considered effective and feasible for efficient for environmentally friendly chili drying.