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Kadir Kadir
Halu Oleo University
Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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DESAIN MESIN PEMARUT KELAPA DAN UBI KAYU DENGAN KOMBINASI ROL PARUT Nanang Endriatno; Kadir Kadir
Dinamika : Jurnal Ilmiah Teknik Mesin Vol 10, No 2 (2019)
Publisher : Jurusan Teknik Mesin, Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (202.018 KB) | DOI: 10.33772/djitm.v10i2.6932

Abstract

This study aims to determine the safe shaft and to design a model of cassava and coconut grated machines. In this study, the grated machine was designed using Autodesk Inventor 2017. The material used for the shaft is carbon steel (S45C) with a tensile strength of 58 kg/mm2. The shaft calculation results show that the plan power is 4.0425 KW, torsional moment or torque at shaft speed 2670 rpm is 5124,955 kg.mm, and permissible shear stress is 4.83 (kg/mm2), and shaft diameter is 21 mm, while the shear stress is obtained at 2.823 kg/mm2. From the above results, it can be seen that the shear stress value that occurs is smaller than the permissible shear stress value (t<ta) where ta = 5,5 kg/mm and the value t = 2.823 kg/mm2, so it can be concluded that the shaft size planned safe. in this study, the design of the grated machine uses two different grated rollers for cassava and coconut. The pulp used is 4 pieces and grated rollers can be moved simultaneously or just one grated roller.
BIOBRIKET KARBONISASI DARI CANGKANG METE DAN SEKAM PADI UNTUK ENERGI BERKELANJUTAN Lukas Kano Mangalla; Abd. Kadir; Kadir Kadir
Dinamika : Jurnal Ilmiah Teknik Mesin Vol 10, No 2 (2019)
Publisher : Jurusan Teknik Mesin, Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (553.331 KB) | DOI: 10.33772/djitm.v10i2.6930

Abstract

Indonesia - an agricultural country- has a large potential of biomass waste such as cashew nut shells and rice husks. Utilization of these materials can be an important source of alternative energy to support sustainable energy development. Several methods have been developed to optimize the utilization of this biomass throughout compacting processes at high pressures and temperatures as well as a material admixture. This study aims to investigate the energy potential of bio-briquettes from cashew nut shell charcoal and rice husks made of various pressures and materials admixture. The composition of briquette material consists of cashew charcoal (M) and rice husk (S) with a composition of 30/70 %, 50/50 % and 70/30% (mass base) with a constant adhesive of 15%. Each composition admixture was taken 5 grams to be compacting as briquettes. Bio-briquettes are made in cylindrical shapes with compacting pressures ranging from 50, 100 and 150 kgf /cm2. Combustion testing is carried out in solid fuel testing furnaces equipped with K-Type thermocouple and digital scales to measure the combustion temperature and combustion rate of the briquette mass when burned. The results showed that cashew charcoal shells and rice husks are very potential to be used as solid fuels which have a coal equivalent heating value. The larger the admixture of cashew nut charcoal in bio-briquettes the better the thermal properties derived, especially of combustion rate and temperature generated during combustion.
Co-Authors Abd. Kadir Lukas Kano Mangalla, Lukas Kano Nanang Endriatno