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All Journal JURNAL KAJIAN TEKNIK MESIN ETAM: Jurnal Pengabdian kepada Masyarakat Jurnal Suara Pengabdian 45 KOLONI
Suhartoyo Suhartoyo
Sekolah Tinggi Teknologi Warga Surakarta
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PENGARUH PENAMBAHAN ETANOL DI BAHAN BAKAR TERHADAP PRESTASI MESIN 4 TAK Suhartoyo Suhartoyo
JURNAL KAJIAN TEKNIK MESIN Vol 6, No 2 (2021): JURNAL KAJIAN TEKNIK MESIN
Publisher : Universitas 17 Agustus 1945 Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52447/jktm.v6i2.4595

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh penambahan etanol berkadar 96% dalam bahan bakar. Data hasil pengujian menyebutkan bahan bakar pertalit memiliki nilai kadar Karbon Monoksida (CO) yang lebih tinggi dari pada bahan bakar variasi campuran pertalit dan etanol. Nilai paling tinggi pada rpm 7000 di semua variasi bahan bakar , kadar CO sebesar 7.82 % bahan bakar pertalit. Kadar CO paling rendah di rpm 7000 sebesar 5,76 % dengan bahan bakar pertalit + etanol 15% campuran. Kadar HC paling tinggi adalah sebesar 286 ppm pada variasi bahan bakar campuran pertalit + etanol 5% campuran. Kandungan hc paling rendah di rpm 7000 adalah sebesar 210 ppm menggunakan bahan bakar campuran pertalit + etanol 10% volume campuran. Kandungan CO2 paling tinggi yaitu hasil pembakaran diruang pembakaran dengan bahan bakar campuran pertalit+etanol 15% volume campuran saat rpm diatas 5000 dibandingkan dengan semua variasi bahan bakar yang di uji. Kandungan CO2 terbesar di rpm 9000 dengan menggunakan bahan bakar campuran pertalit+etanol 15%volume campuran, kandungan CO2 sebesar 11,8 dan paling rendah di rpm yang sama adalah kandungan CO2 dengan menggunakan bahan bakar pertalit sebesar 8,7. Torsi paling besar di rpm 6000 dengan bahan bakar campuran pertalit + etanol 15 % volume campuran sebesar 8,8 Nm. Daya motor tertinggi dengan bahan bakar campuran pertalit + etanol 15 % campuran yaitu sebesar 9,65 ps di rpm 8000. Kata kunci: Pertalit, etanol, daya, torsi, CO,HC.
Optimalisasi Pembuatan Jamu Tradisional Berbahan Empon-empon Menggunakan Mesin Pemarut Semi-Otomatis Nugroho Tri Atmoko; Bambang Hari Priyambodo; Suhartoyo Suhartoyo; Margono Margono
Jurnal ETAM Vol. 2 No. 2 (2022): OCTOBER
Publisher : Politeknik Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46964/etam.v2i2.284

Abstract

Proses pembuatan jamu oleh pengrajin jamu khususnya didaerah Bulakrejo kabupaten Sukoharjo dilakukan melalui pemarutan empon-empon secara manual. Hal demikian berimbas pada tingkat produksi yang kurang efisien, kebersihan serta keselamatan kerja yang tidak terjamin. Melalui program pengabdian kepada masyarakat ini diharapkan dapat meningkatkan pengetahuan dan pengertian dalam penggunaan mesin pemarut empon-empon selain itu UKM mampu bekerja secara efektif dalam proses pembuatan jamu tradisional. Metode yang dilakukan untuk mencapai tujuan yakni dengan cara melakukan pelatihan pembuatan jamu tradisional berbahan empon-empon di UKM Sumber Waras Sukoharjo. Adapun tahapan pelaksanaan program pengabdian kepada masyarakat diantaranya adalah survey, pelaksanaan pelatihan dan penggunaan alat parut empon-empon semi-otomatis. Berdasarkan analisa dan proses kegiatan yang sudah dilaksanakan menunjukkan hasil bahwa Mesin pemarut empon-empon yang dibuat dapat dioprasikan dengan baik oleh mitra/peserta pelatihan. Selain itu, kegiatan ini mampu meningkatkan proses produksi jamu dengan kualitas sesuai yang diharapkan.
Peningkatan Kesejahteraan UKM Mulyo Waras melalui Pelatihan Pembuatan Pakan Domba dengan Mesin Pencacah Semi-Otomatis: Improving The Welfare Of UKM Mulyo Waras By Training In Making Sheep Feed Using A Semi-Automatic Chopper Machine Karminto Karminto; Kaleb Priyanto; Martinus Heru Palmiyanto; Bambang Hari Priyambodo; Suhartoyo Suhartoyo; Nugroho Tritmoko
Jurnal Suara Pengabdian 45 Vol. 2 No. 2 (2023): Juni: Jurnal Suara Pengabdian 45
Publisher : LPPM Universitas 17 Agustus 1945 Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56444/pengabdian45.v2i2.762

Abstract

Wonogiri Regency, Central Java, is famous for its large number of residents who work as breeders, especially sheep/goat breeders. The feed for goats/sheep breeders in Wonogiri district is sourced from weeds. However, the enumeration was still done manually using a sickle, so the enumeration process was ineffective because it required more time and effort. Through this community service scheme, the process of making a machine for chopping weeds is carried out which will later be used as fodder for goats/sheep, especially in the Wonogiri area. The machine is driven by an electric motor and there is a chopping knife which is designed to be more effective. The results of this community service program show that the increase in sheep feed production increased from 200 kg/day before using the machine to 350 kg/day or an increase of up to 75% when compared to without the chopping machine.
PENGARUH SUDUT BEBAS PAHAT TERHADAP KEKASARAN PERMUKAAN BAHAN ST.37 PADA PROSES PERMESINAN SEKRAP Sriyanto Sriyanto; Edy Iryanto; Suhartoyo Suhartoyo
KOLONI Vol. 1 No. 1 (2022): MARET 2022
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/koloni.v1i1.17

Abstract

Metalworking for production process activities is one of the uses of metal materials for production, namely ST.37 objects because for this material the processing process is very easy and widely used. Metal working is done using a scrap machine, for the process it requires machining settings and tool geometry. Precise parameter setting, surface roughness quality as expected. The research parameters are the cutting speed and the angle of inclination of the tool. In this study, the variation of the tool angle and the cutting speed used was varied so as to produce the best variation, namely the smallest roughness value. Variations in the free angle of the cutter blade were made with variations of 5°, 10°, and 15°. Variations in machining settings were cutting speed 16 m /min,20.8m/min and 25.6m/min. With a fixed feeding depth of 0.3mm. In the initial step, the cutting chisel is sharpened with different free angle geometries, then the chisel is installed on the tool holder, put the workpiece on the vise, set the cutting speed, feeding depth, and perform the machining process. °,10° and 15° with cutting speeds of 16 m/min, 20.8 m/min and 25.6 m/min, respectively, with 3 experiments. Subsequent experimental results were averaged. For the best results with an average roughness of 4.34 m obtained from a tool angle of 15° with a cutting speed variation of 16 m/min..   Keywords: Scraping machine, chisel geometry, cutting speed, surface roughness, surface roughness tester.
Co-Authors Atmoko, Nugroho Tri Bambang Hari Priyambodo Edy Iryanto Karminto Karminto Margono Margono Martinus Heru Palmiyanto Priyanto, Kaleb Sriyanto Sriyanto