Analyzing Effect of Temperature on Drying Moringa (Moringa Oleifera) Leaves Using Photovoltaic Tray Dryer
Moringa oleifera is a shrub with a height of 7-11 meters and thrives from the lowlands to 700 meters above sea level. Moringa leaves have various beneficial nutritional contents. Moringa leaves, dried into a powder, contain more nutrients than when the plant is fresh leaves. However, conventional drying of the material in the hot sun can reduce the quality of the dried material because the drying temperature cannot be controlled. Therefore, a photovoltaic tray dryer was designed with a drying device that utilizes sunlight through the photovoltaic solar energy system consisting of four trays. This research aims to analyze the effect of temperature on drying efficiency using a photovoltaic tray dryer. Before carrying out the drying process, the Moringa leaves are tested for the initial water content. Moringa leaves are weighed 100 grams for each tray. The drying process is carried out at temperature variations, 40°C, 50°C, 60°C, and 70°C within four hours to see the optimal temperature in the Moringa leaf drying process. Every 30 minutes, the Moringa leaves in tray 1, tray 2, tray 3, and tray 4 are weighed to determine the water content. The lowest water content in Moringa leaves was found in the drying process at 70oC, 40.73%. The best drying process occurs in tray 3 with an average water content after drying, 49.49%. Meanwhile, the highest drying efficiency occurred in the drying process at 40oC, 31.76%.
Keywords: Moringa leaves, drying, photovoltaic tray dryer, drying temperature, water content.
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