PENENTUAN LAJU PENURUNAN KADAR AIR OPAK SINGKONG DENGAN MENGGUNAKAN RUANG PENGERING BERENERGI BIOMASSA LIMBAH PELEPAH KELAPA SAWIT

Abstract

The research was conducted to determine the declining rate water content of cassava using biomass energy from palm fronds. Drying is done by using a drying chamber with a length of 130 cm, width 90 cm and high 120 cm. The drying chamber is formed in such a manner that is equipped with a chimney, two-level drying rack and 2 drums as heat sources. Drying heat sources derived burning biomass from palm fronds in the drum. The room walls are made of plywood with thickness of 8 mm and coated zinc plate with a thickness of 1 mm which is painted black. Samples were dried cassava is opaque and produced in Rejosari Village, District Tenayan Raya, Pekanbaru. First mass each opaque cassava in the rack 1 at 44.13 grams, 41.99 grams, and 46.27, while in the rack 2 of 47.66 grams, 45.02 grams and 45.98 grams. Drying is carried out for 100 minutes with 10 minute intervals where the room temperature is set about 50 ° C to 65 ° C. The decline in the water content on average on both a rack every 10 minutes for observation 100 minutes are 15.30%, 10.62%, 8.84%, 7.17%, 6.40%, 5.78%, 4.71%, 3.74%, 2.75%, 2.52%.