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Karakteristik Getaran Mesin Penggerak Berbahan Bakar Biogas dengan Analisis Fast Fourier Transform (FFT) Rusmiyatun, Rusmiyatun; Al manan, Oesman Raliby; Andriyanto, Andriyanto; Kurniawan, Sofyan; Munahar, Suroto
Borobudur Engineering Review Vol 5 No 2 (2025): Proses Industri Manufakur
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/benr.v5i2.15660

Abstract

Sambak Village is a tofu industry Micro, Small, and Medium Enterprises (MSMEs) area that produces biogas under the auspices of the Sambak Sustainable Biogas Group (KBLS). This MSME is located in Kajoran District, Magelang Regency, Central Java. The Sambak Tofu Industry MSME faces several problems, including the relatively high production costs for tofu production. This condition is caused by the soybean milling process, which is the initial process of tofu production, still using a drive engine with fossil fuels/diesel which has a fairly high price, thus having an impact on reducing the profits of the Sambak tofu industry MSME. Therefore, efforts are needed to optimize the use of biogas as a driving engine energy for soybean milling, and manage the distribution of biogas used by every household user and tofu industry MSME. Seeing these problems, this activity will design a driving engine with biogas fuel equipped with a synchronizer system and equipped with vibration analysis produced.
Pengembangan Sirkuit Security System untuk Meningkatkan Driver Behaviour Control pada Kendaraan Hanif Fahrian; Suroto Munahar; Dwi Sudarno Putra
Automotive Experiences Vol. 1 No. 01 (2018)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1555.849 KB) | DOI: 10.31603/ae.v1i01.2018

Abstract

Salah satu penyebab kecelakaan jalan raya adalah cara mengemudi yang tidak tepat, misalnya melebihi kecepatan maksimal yang diijinkan. Ketika kendaraan terjadi kecelakaan dapat menimbulkan ledakan yang sangat besar, seperti yang terjadi pada kasus mobil tangki pengangkut bahan bakar. Melihat permasalahan ini perlu solusi untuk memonitor cara mengemudi (driver behaviour). Metode yang diterapkan dengan aplikasi Electronic Control Unit (ECU) security system. Sistem ini dihubungkan dengan inputan Vehicle Speed Sensor (VSS) yang dibangkitkan oleh transmisi dan Thorttle Position Sensor (TPS) dibangkitkan oleh katup throttle valve. Sebuah microcontoller dan GPRS shield digunakan untuk mengirimkan pesan pada pemilik dan pengemudi kendaraan. Hasil yang diperoleh, saat kendaraan berjalan di atas kecepatan 60 km/jam, sistem dapat mengirimkan informasi tanda bahaya melalui sms ke ponsel pemilik kendaraan dan pengemudi.
Karakteristik Sistem Pendingin dengan Penambahan Bahan Additive (Natrium Kromat, Ethylene Glycol, dan Aquades) pada Gasoline Engine 125 cc: Characteristics of a Cooling System with the Addition of Additives (Sodium Chromate, Ethylene Glycol, and Distilled Water) in a 125 cc Gasoline Engine Fuadin, Kurnia; Fatoni, Achmad Fadhil; Habiby, Ilham; Munahar, Suroto
Borobudur Engineering Review Vol. 6 No. 1 (2026): Advanced Industry
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/rpcq9p09

Abstract

Radiator merupakan komponen penting pada sistem pendinginan mesin sepeda motor yang berfungsi menjaga suhu kerja mesin tetap optimal. Pendinginan yang kurang efektif dapat menyebabkan overheating dan memperpendek umur mesin. Penelitian ini bertujuan menganalisis efektivitas cairan pendingin (coolant) dengan penambahan additive natrium kromat (Na₂CrO₄) dalam campuran ethylene glycol (EG) dan aquades pada mesin Honda Vario 125cc. Metode penelitian menggunakan eksperimen dengan variasi konsentrasi Na₂CrO₄ sebesar 0,3%, 0,5%, dan 0,7%. Pengujian dilakukan pada berbagai putaran mesin untuk mengukur suhu masuk dan keluar radiator serta menghitung efektivitas pendinginan. Hasil penelitian menunjukkan bahwa campuran EG dan aquades dengan penambahan Na₂CrO₄ sebesar 0,7% menghasilkan efektivitas pendinginan tertinggi, terutama pada putaran mesin tinggi. Peningkatan ini disebabkan oleh konduktivitas termal yang lebih baik serta kemampuan menghambat korosi, sehingga permukaan perpindahan panas radiator tetap bersih dan efisien. Kombinasi tersebut mampu menjaga stabilitas sistem pendinginan pada suhu dan beban mesin tinggi. Namun, penelitian ini belum menguji konsentrasi di atas 0,7% maupun efek jangka panjang terhadap korosi. Penelitian selanjutnya disarankan mengeksplorasi konsentrasi lebih tinggi dan mengkaji durabilitas sistem pendingin secara menyeluruh
A New Approach to Measuring Institutional and Researcher Contributions to the SDGs: Combining Data from Elsevier SciVal and VOSviewer Fungky Dyan Pertiwi; Dhimas Cahyo Anindito; Ilham Habibi; Saifudin; Suroto Munahar; Bagiyo Condro Purnomo; Yun Arifatul Fatimah; Budi Waluyo; Muji Setiyo
Advance Sustainable Science Engineering and Technology Vol. 6 No. 4 (2024): August-October
Publisher : Science and Technology Research Centre Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v6i4.1076

Abstract

The Sustainable Development Goals (SDGs), established by the United Nations in 2015, are a comprehensive global framework that addresses social, economic, and environmental challenges through sustainable development. This study examines the role of universities, specifically focusing on the Department of Mechanical Engineering at Universitas Muhammadiyah Magelang (UNIMMA), in contributing to the SDGs. The study utilized data from Elsevier’s SciVal to analyze the department’s contribution to the SDGs through scientific publications in the Scopus database. A total of 97 out of 156 articles published by nine researchers from the department were found to contribute to various SDGs, with a significant focus on Goals 7 (affordable and clean energy), 17 (partnerships for the goals), 9 (industry, innovation, and infrastructure), and 12 (responsible consumption and production). The study highlights the department’s collaborative efforts and alignment with global sustainability goals. In addition, VOSviewer was used to map the research collaboration network within the department, revealing strong contributions to energy efficiency, sustainable technologies, and climate action. However, the department's research shows limited contribution to social SDGs such as poverty alleviation and gender equality. By mapping the university’s contributions to the SDGs, this study helps faculty members identify opportunities for targeted research collaborations, address gaps in SDG contributions, and enhance partnerships with researchers from other institutions, thus broadening the university’s impact on global sustainable development goals.