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Optimasi Multi Respon Parameter Proses Injection Molding Material Biokomposit Menggunakan Metode Taguchi - PCR TOPSIS Sufiyanto; Marfizal Marfizal; Lilia Trisyathia Quentara; Alfi Tranggono Salim
JEECAE (Journal of Electrical, Electronics, Control, and Automotive Engineering) Vol. 6 No. 2 (2021): JOURNAL OF ELECTRICAL, ELECTRONICS, CONTROL, AND AUTOMOTIVE ENGINEERING (JEECAE
Publisher : Pengelolaan Penerbitan Publikasi Ilmiah (P3I) Politeknik Negeri Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Pengaturan parameter proses injection molding sangat berpengaruh terhadap kulitas produk hasil cetakan, diantaranya kualitas sifat mekanis pada kekuatan tarik dan impak. Pengaturan parameter untuk polimer jenis termoplastik sudah banyak direkomendasikan oleh perusahaan pembuat mesin injection molding, sedangkan pada material Polimer Matrix Composite (PMC) yang menggunakan serat alam disebut dengan biokomposit masih belum banyak digunakan. Pada penelitian ini biokomposit yang digunakan adalah campuran polypropylene, maleic anhydride polypropylene dan serbuk sekam padi. Perlu adanya eksperimen yang mengoptimasi parameter proses injection molding untuk memperoleh sifat mekanis yang optimal pada material hasil cetakan. Parameter yang divariasikan pada penelitian ini terdiri dari 4 faktor dan masing-masing faktor terdiri dari 3 level. Dengan menggunakan metode Taguchi diperoleh desain eksperimen menggunakan matriks ortogonal L27. Untuk memperoleh respon kekuatan tarik dan impak secara simultan maka digunakan metode PCR TOPSIS. Dari hasil optimasi multi respon PCR TOPSIS diperoleh parameter proses injection molding yang optimal untuk kekuatan tarik dan impak secara simulatan adalah: barrel temperature 215°C, injection pressure 60 bar, holding pressure 45 bar, dan injection velocity 65 mm/s.
Optimization of Injection molding Parameters using the Taguchi Method to Maximize Biocomposite Material Tensile Strength Sufiyanto
Jurnal Teknik Mesin Vol 7 No 2 (2017): Jurnal Teknik Mesin Vol.7 No.2 October 2017
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2017.v7.i2.81-87

Abstract

This research explained a study for optimization of parameters process on the injection molding biocomposite material, which is a mixture of plastics and natural fibers. Natural fibers used is rice husk (RH) mixed with polypropylene (PP) and maleic anhydride polypropylene (MAPP). The biocomposite molded into tensile specimens ASTM D638-03 using the injection molding machine. The varied of injection molding is the parameters process, that are divided into 4 parameters and each consists of 3 levels, then be done tensile tests on specimens. Optimization performed using the Taguchi method with orthogonal matrix design L27(313). The maximum tensile strength of biocomposite were barrel temperature of 210°C, injection pressure of 55 bar, holding pressure of 40 bar, and injection velocity of 75 mm/sec.
Propeller Turbine Design for Power Generation Marfizal; Sufiyanto; Dedi Wardianto
Jurnal Teknik Mesin Vol 11 No 2 (2021): Jurnal Teknik Mesin Vol.11 No.2 October 2021
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2021.v11.i2.132-139

Abstract

The national electrification ratio is only 72.95%. As many as 27.05% of the territory in Indonesia has not been reached by electricity with various obstacles, one of which is because of the remote location so that access is difficult. One of the efforts to overcome the electricity problem is to take advantage of the potential energy sources around people's residences. One potential that might be used is a water energy source with low head and discharge. Ideally, this is done by using a generator system that uses a propeller type turbine. The difficulty of making propeller turbines is especially in the manufacture of housings and turbine blades. In this research, an attempt is made to simplify the turbine housing and turbine blades so that they are easy to manufacture. The design is made for Head (H) : 5 m Water flow (Q) : 0.11 m3/s Viscosity (ρ) : 998 kg/m3 Gravity (g) : 9.81 m/s2 Assumed hydraulic efficiency (ηh) : 0 ,80 Power (P) : 4,37 kW, Angle of attack (180o-β∞) 16o, Glide angle 55o, Thickness of inner blade(λ) 2,16o, Thickness of outer blade(δ) 2o. Simplification of the turbine housing is carried out by making the turbine housing from pipe iron and the simplification of the turbine blade is carried out by making turbine blades by eliminating the aerodynamic cross section of the blades, so that the blades can be made of steel plates without casting as is treated in aerodynamic sections. To see the effect of aerodynamic and non-aerodynamic cross-sectional shapes on efficiency, an efficiency test will be carried out.
Effect Of Electric Load On Steam Flow Rate At Steam Turbine As Generator Dedi Wardianto; Marfizal; Sufiyanto
Jurnal Teknik Mesin Vol 12 No 2 (2022): Jurnal Teknik Mesin Vol.12 No.2 October 2022
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2022.v12.i2.104-109

Abstract

PT. Kurnia Batang Hari is a palm oil processing factory into palm oil. At PT KBHB there is a tool called “Steam Turbine Generator Type RB5” which functions as a power generator. This study aims to determine the effect of the load on the mass flow rate, turbine generator power, and determine the efficiency of the steam turbine generator. The research method is to take boiler and turbine data directly for 1 week. Get the enthalpy value from the steam table and can calculate based on the research objective. Based on the research conducted, it was found that the highest average flow rate on Wednesday was 3.48 kg/s. The highest generator power yield on Sunday is 1661 KW. The results of the calculation of the highest average generator efficiency on Sundays are 57.11%. Conclusion It can be seen that if the load on the turbine is getting bigger, then the mass flow rate of the steam will be even bigger and it also depends on the pressure of the steam entering and leaving the turbine. The average load of 1 week borne by the generator is 885 KW and the mass flow rate is 3.81 kg/s. The generator power produced during processing is an average of 1 week, which is 1600 KW. The average efficiency of the generator in 1 week is 55.52% on Sunday.