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All Journal Majalah Ilmiah MOMENTUM Gorontalo Journal of Infrastructure and Science Engineering Abdi Masya Biomedical and Mechanical Engineering Journal Surya Teknika: Jurnal Ilmiah Teknik Mesin Cahaya bagaskara
T Towijaya
Program Studi Teknik Mesin Universitas Muhammadiyah Pekajangan Pekalongan
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation Other

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PERAWATAN DAN PERBAIKAN SISTEM GARDAN PADA MESIN DAIHATSU ESPASS PICK UP Pujiono, Akhmad; Towijaya, Towijaya; Adib Maulana, Shafly
Surya Teknika : Jurnal Ilmiah Teknik Mesin Vol. 9 No. 2 (2025): Vol. 9 No. 2 Oktober 2025
Publisher : Universitas Muhammadiyah Pekajangan Pekalongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.48144/suryateknika.v9i2.2059

Abstract

Differential/gardan adalah suatu unit pemindah tenaga yang komponennya didominasi oleh roda gigi berbentuk bevel “ memiring ” yang berfungsi untuk mereduksi putaran dan tenaga roda penggerak sisi dalam ketika belok kemudian putaran dan tenaga ditambahkan ke roda penggerak roda sisi luar. Fungsi gardan dalam roda penggerak adalah untuk meneruskan tenaga putar yang dihasilkan oleh mesin mobil menuju roda penggerak yang sebelumnya tenaga putar ini di hubungkan ke sistem kopling, transmisi, batang propeller. Penelitian ini bertujuan Untuk mendeteksi kerusakan pada gardan dan mengetahui perawatan dan perbaikan gardan pada kendaraan. Data yang digunakan dalam penelitian ini dikumpulkan dengan menggunakan metode observasi, wawancara, kajian literatur dokumentasi, dan metode mengidentifikasi. Proses diawali dengan pembongkaran komponen pada sistem gardan, pemeriksaan kondisi komponen, proses perawatan serta perbaikan komponen sistem gardan yang bermasalah dan pengukuran keolengan pada sistem gardan. Berdasarkan data yang diperoleh dapat diolah serta disimpulkan mengenai perawatan maupun penggantian komponen sistem gardan yang rusak
Pembuatan Bioetanol Fuel Grade Ethanol (FGE) dari Singkong dengan Proses Dehidrasi Melalui Penyerapan Menggunkan Zeolit Sintesis Imam Prasetyo; Towijaya
JURNAL ILMIAH MOMENTUM Vol 22 No 1 (2026): Vol.22, No.1 (2026)
Publisher : Universitas Wahid Hasyim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36499/jim.v22i1.14694

Abstract

Bioethanol is an alcohol produced from plants using microorganisms through a fermentation process. Bioethanol itself is an attractive alternative energy source to develop because it is reported in Indonesia and is renewable. Currently, ethanol is widely used. In addition to being used as a fuel mixture, ethanol is also used in the industrial world as a solvent and as a raw material for other chemical industries, such as the production of ethyl acetate. Therefore, bioethanol may be a potential alternative fuel, and much research is being conducted to develop this fuel. This research aims to produce bioethanol fuel grade (FGE) from cassava raw materials through fermentation, distillation, and dehydration using zeolite synthesis. Cassava raw materials were chosen because of their high starch content and abundant availability in Indonesia. The research process included material preparation, fermentation with yeast, distillation at 78°C, and purification through dehydration. The results showed that the ethanol content of the distillate reached 92–95%, and after the dehydration process increased to 99.8%, meeting Fuel Grade Ethanol (FGE) standards. The use of synthetic zeolite has proven to be efficient, environmentally friendly, and regenerable. These results support efforts to develop sustainable renewable energy and reduce dependence on fossil fuels.
Co-Authors Adib Maulana, Shafly Aminuyati Arrassyid, Syadan Baihaki, Iqbal Hadi Al-Rasyid, Muhammad Henry Pradana Hufron Faza, Aji Imam Prasetyo Imam Prasetyo Isdaryanto Iskandar K Anam K Anam KHOIRUL ANAM Khoirul Anam Khoirul Anam KHOIRUL ANAM Luthfi Hakim m ubaidillah Maulana, Aqiem Miftahul F., Ahmad Mubin, Nurul Musyahar, Ghoni Nurcholis Satria Nurul Mubin Nurul Mubin Pujiono, Akhmad Putra, Aszamil Rusdy Rizak, Muchamad sukmo sudiono Syadan Arrassyid W D Lestari W D Lestari Zaky Khusniati, Isna