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All Journal Desimal: Jurnal Matematika JMM (Jurnal Masyarakat Mandiri) Wiralodra English Journal (WEJ) Martabe : Jurnal Pengabdian Kepada Masyarakat Infotekmesin Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang UTAMAX : Journal of Ultimate Research and Trends in Education Jurnal Program Kemitraan dan Pengabdian Kepada Masyarakat Jurnal Riset dan Inovasi Pembelajaran International Journal of Trends in Mathematics Education Research (IJTMER) PEDAMAS (Pengabdian Kepada Masyarakat) Jurnal Pengabdian Masyarakat Nozzle : Journal Mechanical Engineering
Qurohman, M. Taufik
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Journal : Infotekmesin

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RANCANG BANGUN RASIO GEAR TERHADAP KECEPATAN PENGEROLAN PIPA Suprihadi, Agus; Akhmadi, Amin Nur; Qurohman, M. Taufik
Infotekmesin Vol 9, No 01 (2018): Infotekmesin, Januari 2018
Publisher : Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (850.488 KB) | DOI: 10.35970/infotekmesin.v9i01.9

Abstract

The basic principle of metal formation is a process that is done by giving shape changes on the workpiece. This shape change can be done by providing an outer force resulting in plastic deformation. The application of this metal formation can be seen in some examples such as rolling, bending, forging, extruding, wire drawing, deep drawing, and so on. In the process of formation of this metal is also used tooling (bending) whose function gives style to the workpiece, and direct the change of shape. Knowing the speed of the power forwarding system on the pipe roller machine starting from the power source until power is used as the work cycle, and to know the type of belt, the length of the belt used on the pipe roll machine. From this research can be concluded that: (1) In bending the thickness of 4 mm pipe the required power is 582.4 N with power of 0.4 hp then the motor required 1 hp, the diameter of the pulley used is 2 inch for motoran and 8 inch for the pivot reducer, belt used type B with length 44 inch, (2) To reach the rotation of ± 2 rpm ie pulley diameter used with the ratio of pulley ratio is 1: 4, the reducer is used with the value I = 60 and sprocket ratio 1: 3.
Korelasi Konsentrasi Etanol 5% Pada Bahan Bakar Gasolin Terhadap Performa, dan Emisi Gas Buang Mesin Bensin 150cc Syarifudin, Syarifudin; Yohana, Eflita; Muchammad, Muchammad; Suhartana, Suhartana; Fatkhurrozak, Faqih; Lukman Sanjaya, Firman; Qurohman, M. Taufik
Infotekmesin Vol 14 No 1 (2023): Infotekmesin: Januari, 2023
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v14i1.1737

Abstract

Ethanol has higher octane and oxygen properties than fossil-fuel gasoline. Along with the increase in gasoline dependency and exhaust emissions, the use of ethanol as a fuel is urgently studied. This study aimed to observe the concentration of 5% ethanol in gasoline on the performance and exhaust emissions of a 150cc gasoline engine that was operated at 1000, 2000, and 3000rpm. The observation results show that the concentration of 5% ethanol in gasoline correlates with an increase in performance with indications of an increase in EGT, Brake power, BTE, and a decrease in SFC. On the emission side, it is also correlated with an increase in the quality of exhaust emissions with indications of increased CO2 emissions and reduced CO and HC emissions. The best correlation of 5% ethanol concentration was obtained at an operating speed of 2000rpm with an increase in EGT of 10.70%, an increase in Brake power of 9.49%, an increase in BTE of 38.62%, an increase in CO2 emissions of 23.06%, a decrease in SFC of 26 .49%, CO emission reduction of 16.67%, and HC emission reduction of 4.24%.
Co-Authors Amin Nur Akhmadi, Amin Nur Arif Romadhon, Syaefani Eflita Yohana Fatkhurrozak, Faqih Firmansyah, M. Sofyan Hapzi Ali Ida Afriliana Indrayanti, Iin Lukman Sanjaya, Firman Maulana, Arya Bagus Muchamad Sobri Sungkar, Muchamad Sobri Muchammad Muchammad Ratih Wulandari Rokhmah, Nur Sigit Setijo Budi, Sigit Setijo Suhartana Suhartana Suwarto , Suwarto Syaefani Arif Romadhon, Syaefani Arif Syarifudin Syarifudin Wardana, Ali Wijayanto , Zainnur Zul Fauzi, Arief