Experimental study of the prototype of acid gelugur solar dryer (Garcinia atroviridis) with air velocity of 1.5 m/s

• Published in: IOP conference series. Materials Science and Engineering Vol. 725; no. 1; pp. 12011 - 12017
• Main Authors: Siagian, Parulian, Setyawan, Eko Y, Napitupulu, Richard A M, Gultom, Tumiur, Panjaitan, Jusman, Simamora, Vidya
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 01.01.2020
• Subjects: Acids; Ambient temperature; Drying; Flow velocity; Heat transmission; Prototypes; Racks; Thickness
• ISSN: 1757-8981; 1757-899X
• DOI: 10.1088/1757-899X/725/1/012011

A prototype of a constant flow type of Solar Gelugur Acid (Garcinia atroviridis) dryer using 2 racks was investigated experimentally. The aim is to explore the performance and characteristics of the prototype. A box of solar acid Gelugur (Garcinia atroviridis) is designed and made. In experiments the thickness of Acid Gelugur consists of 3 mm and 5 mm. The speed of heat flow sourced from the solar collector is 1.5 m/s. Prototype exposed to sunlight located in the city of Medan. The average solar collector temperature is 92.20°C, the drying box temperature averages 33.54°C, Gelugur Acid Moisture average 94.42%, and Ambient Temperature data measured System efficiency is analyzed. The results showed that with a flow velocity of 1.5m/s constant, the percentage of acid content in Acid Gelugur (Garcinia Atroviridis) with a slice thickness of 3mm was greater than that of 5mm with drying for 8 hours.