DESAIN UNIT PENGOLAHAN BIOETANOL UNTUK PETANI DI DESA NGAJUM KECAMATAN SUMBER PUCUNG KABUPATEN MALANG
ABSTRACT: The aim of the
research is to develop bio-ethanol processing unit in small size using simple
technology, which can be used by Cassava farmers in the village of Ngajum
Sumber Pucung Malang. The capacity of Bioethanol processing unit provided is
100 liters/process which consists of sieve, cooker with cooling mash,
fermenter, and distillation unit. Tests on several processing units give the
following results: Sieve driven by 7.5 HP diesel engines. Sieve cylinder made
of wood cylinder with 40 cm of diameter and 45 cm of length. Sieve has a
capacity of 613 kg/h. Cooker tank made of stainless steel plate 4 mm and has
dimensions 77 cm of diameter and 150 cm of height. There are 4 pieces of pipe
stainless steel 6" placed at the bottom serving as heat exchanger. Cooling
Mash has heat transfer surface area of 3.11 m2 that consists of 26 stainless
steel pipe 1 ½" of diameter and 100 cm of length . Cooking efficiency is
38% with fuel of firewood with a moisture content of 50%. At steady state
conditions, Cooling mash is capable to remove energy from substance of 280
kcal/min at mass flow rate of substance of 2.34 l/s and mass flow rate of
cooling water of 0.6 l/s.
Fermenter tank has made of stainless steel and has dimensions 110 cm of
diameter and 240 cm of height. The mixer’s fermenter is driven by a ½ HP
electric motor. To maintain the material temperature at 32 oC, the fermenter
equipped with a cooling unit that is sprinkler water around the tube.
Distillation unit has made of stainless steel 304 and consists of beer column,
the column rectifying, pre-heater, condensers and equipped with boiler.
Penulis: Bambang Guritno,
Bambang Dwi Argo, Rini Yulianingsih
Kode Jurnal: jptmesindd110262
