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All Journal Jurnal Penelitian Saintek SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Rekayasa Mesin Sinergi Semesta Teknika JITEK (Jurnal Ilmiah Teknosains) Journal of Energy, Mechanical, Material and Manufacturing Engineering JRST (Jurnal Riset Sains dan Teknologi) JMM (Jurnal Masyarakat Mandiri) Angkasa: Jurnal Ilmiah Bidang Teknologi KACANEGARA Jurnal Pengabdian pada Masyarakat Jurnal Rekayasa Hijau Jurnal Teknologi Terapan Infotekmesin Majamecha STEAM Engineering : Journal of Science, Technology, Education And Mechanical Engineering Scientific Journal of Mechanical Engineering Kinematika Jurnal Berdaya Mandiri Indonesian Journal of Computing, Engineering, and Design International Journal of Mechanical Engineering Technologies and Applications (MECHTA) Jurnal Sains Teknologi dalam Pemberdayaan Masyarakat Jurnal Mesin Nusantara Society : Jurnal Pengabdian dan Pemberdayaan Masyarakat Perwira Journal of Science and Engineering (PJSE) Dulang: Jurnal Pengabdian Kepada Masyarakat Abdi Cendekia: Jurnal Pengabdian Masyarakat Sewagati: Jurnal Pengabdian Masyarakat Indonesia Prosiding Seminar Nasional Rekayasa Teknologi Industri dan Informasi ReTII Journal of Energy, Materials, & Manufacturing Technology Jnanadharma Taawun: Jurnal Pengabdian kepada Masyarakat Jurnal Pendidikan Teknik Mesin Jurnal Inovasi Mesin
Angger Bagus Prasetiyo
Universitas Tidar
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ANALYSIS OF MECHANICAL CHARACTERISTICS OF TOOTH BUCKET EXCAVATOR BASED ON DIFFERENT GRADE LEVELS akhmad nurdin; Iqbal Zulfikar Alief Utama; Bagus Angger Prasetiyo; Rosyidi Hidayat; Fajar Paundra; Fajri Kurniawan; Dzikrina Salsabila Yasmin; Abdul Muhyi
Jurnal Pendidikan Teknik Mesin Vol. 25 No. 02 (2025): December 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jptm.v25i02.33074

Abstract

The purpose of this study is to comprehend the microstructure and hardness value of three distinct tooth bucket manufacturers. Three manufacturers' excavator tooth buckets—Canada Grade, China Grade A, and China Grade C—are compared for their mechanical characteristics. Among the tests are the Vickers method for measuring hardness, optical microscopy for examining microstructure, and chemical composition analysis. According to the results, the primary elements in all three specimens—carbon, silicon, manganese, and chromium—meet the DIN Grade 25CrMo4 standard. The martensite phase, which gives the Canada product its hardness and resistance to deformation, dominates its microstructure. The China Grade C product, on the other hand, has a more prominent ferrite phase, which raises ductility while decreasing hardness. China Grade C (570.24 HVN) had the highest hardness test value, followed by China Grade A (517.67 HVN) and Canada (468.09 HVN). This demonstrates that while Canada excels at withstanding heavy loads without damage, China Grade C is better suited for applications needing high wear resistance. Users of heavy machinery can use this study as a scientific guide when choosing bucket nails based on operational requirements, including material toughness and wear.
The Effect of Fuel Injection Duration on Exaust Gas Emissions of a 4-Stroke Engine 113.68 CC Using Bioethanol Fuel Iqbal Zulfikar; Akhmad Nurdin; Angger Bagus Prasetiyo; Bambang Irawan
Jurnal Pendidikan Teknik Mesin Vol. 25 No. 02 (2025): December 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jptm.v25i02.33503

Abstract

In Indonesia, the number of motor vehicles using fuel as an energy source is rising quickly. The government has developed renewable energy to reduce fuel consumption because, according to the Downstream Oil and Gas Regulatory Agency (BPH Migas), the consumption of gasoline-type fuels in 2017 was 1,858,875 L/Quarter. Determining the impact of using bioethanol with different injection times on exhaust gas emissions was the aim of this study. Bioethanol is an environmentally friendly alternative fuel for cars that uses less fuel. It is a renewable energy source made from vegetable sources. Variations in fuel injection duration and exhaust gas emission are the main subjects of this study. With no modifications to compression, the engine operates under standard conditions. A gas analyzer and engine speeds of 1500, 2000, 3000, 4000, and 5000 Rpm were used in the study. According to the study's findings, the amount of CO exhaust gas dropped. At 5000 RPM for 4 ms, the lowest CO in bioethanol fuel is 1.21%. With bioethanol fuel, the amount of HC exhaust gas emissions has dropped. 710 ppm at 3000 Rpm for 4 ms is the lowest HC level. When using bioethanol as fuel, the amount of CO2 emissions rises. The maximum CO2 concentration is 6.50% at 5000 RPM for 4 ms. The maximum amount of O2 emissions from bioethanol fuel is recorded at 1500 RPM for 4 ms.
Stiffness Improvement of Corrugated Metal Roofs through Cross-Sectional Geometry Modification Zidan Yusron Wijanarko; Angger Bagus Prasetiyo
Jurnal Inovasi Mesin Vol. 7 No. 2 (2025): OCTOBER 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jim.v7i2.31504

Abstract

Nowadays, many Indonesian commonly use metal trapezoidal corrugated roofs for their residential needs. Nevertheless, the roofs often deformed or failed due to heavy rains or storms, especially in tropical regions like Indonesia. Therefore, a new model was investigated and proposed in this research to enhance the stiffness-to-weight ratio of the roofs. Computational simulation was conducted to compare the existing and the proposed model of the roofs. The addition of some small folds in certain positions successfully increases the stiffness-to-weight ratio of the roof by 11.58% compared to the existing model.
Pengaruh Pasir Silika sebagai Filler pada Komposit Berpengikat Poliester teradap Karakteristik Komposit Iqbal Zulfikar Alief Utama; Zidan Yusron Wijanarko; Angger Bagus Prasetiyo; Widyanita Harwijayanti; Whonica
Perwira Journal of Science & Engineering Vol 6 No 1 (2026)
Publisher : Universitas Perwira Purbalingga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54199/nrkhw323

Abstract

Pertumbuhan jumlah manusia dan perkembangan pembangunan di berbagai wilayah di dunia mempengaruhi mobilisasi manusia yang membutuhkan kendaraan untuk berpindah tempat dalam memenuhi kebutuhan. Untuk memenuhi kebutuhan kendaraan di perlukan material body kendaraan dengan material yang memiliki ketahanan terhadap uji mekanis. Komposit merupakan material unggul dimana tailorability (kekuatan) bisa disesuaikan dengan kebutuhan. Komposit polimer pada bidang otomotif dikembangkan  dengan kualifikasi ketahanan bakar yang baik. Pengembangan komposit polimer dapat dilakukan dengan filler sehingga menghasilkan material yang lebih unggul dan menghasilkan kinerja yang tinggi. Pasir Silika merupakan Geomaterial dengan istilah pasir kuarsa, pasir putih atau pasir industri. Secara umum pasir silika terdiri dari silikon dioksida ( SiO2 ). Pasir Silika memiliki sifat keunggulan apabila digunakan sebagai material manufaktur diantaranya adalah keras, memiliki titik leleh yang tinggi/ tahan panas, tahan terhadap tekanan dan abrasi. Resin yukalac 157 BQTN merupakan polimer jenis termosted poliester biasa diaplikasikan pada suhu kerja mencapai 79 ˚C. dengan berat jenis 1,3-1,4 kg/cm3.Penelitian ini bertujuan untuk mengetahui karakteristik komposit geopolimer antara pasir silica dan polimer yukalac 157 BQTN terhadap kekuatan lentur dan kekuatan tarik.
PENERAPAN SISTEM PENERANGAN TENAGA SURYA DAN EDUKASI LAMPU HEMAT ENERGI DI BANK SAMPAH BERBASIS MASYARAKAT Arbye S.; Agung Purnomo; Angger Bagus Prasetiyo; Cahyo Wibi Yogiswara; Setya Drana Harry Putra; Herlambang Fawwaz Prabowo; Tiko Es Saputra Ceren; Dimas Ahnafi Aflah
JMM (Jurnal Masyarakat Mandiri) Vol 10, No 4 (2026): Agustus
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v10i4.40833

Abstract

Abstrak: Bank Sampah Sido Resik di Kabupaten Magelang menghadapi keterbatasan penerangan pada sore dan malam hari serta ketergantungan penuh pada listrik konvensional, sementara pemahaman pengelola dan relawan mengenai energi terbarukan masih terbatas. Pengabdian ini bertujuan menerapkan sistem penerangan tenaga surya serta memberikan edukasi penggunaan lampu hemat energi guna meningkatkan keterampilan teknis (hard skill) dan kesadaran (soft skill) mitra terhadap efisiensi energi. Kegiatan menggunakan metode campuran, yaitu penerapan teknologi tepat guna yang dipadukan dengan sosialisasi dan edukasi partisipatif kepada pengelola dan sekitar 14 relawan bank sampah. Evaluasi dilakukan secara kualitatif melalui observasi dan tanya jawab lisan, dengan indikator keberhasilan berupa berfungsinya sistem dan meningkatnya pemahaman mitra. Hasil kegiatan berupa terpasangnya empat unit Penerangan Jalan Umum Tenaga Surya dan lima titik lampu LED hemat energi. Pengujian menunjukkan energi baterai 106–122 Wh dengan waktu pengisian penuh 1,2–1,9 hari. Edukasi menunjukkan penggantian lampu 15 watt dengan LED 10 watt menghemat sekitar Rp30.660 per titik per tahun, sekaligus meningkatkan pemahaman mitra terhadap energi terbarukan.Abstract: Sido Resik Waste Bank in Magelang Regency faces limited afternoon and evening lighting and full dependence on conventional electricity, while managers and volunteers have limited understanding of renewable energy. This community service aimed to implement a solar-powered lighting system and provide education on energy-saving lamps to improve the partners' technical skills (hardskill) and awareness (softskill) of energy efficiency. The activity used a mixed method combining appropriate-technology application with participatory socialization and education for the managers and about 14 volunteers. Evaluation was conducted qualitatively through observation and oral questioning, with success indicators being a functioning system and improved partner understanding. The activity produced four solar-powered public street lighting units and five energy-saving LED lamp points. Testing showed a battery energy of 106–122 Wh with a full charging time of 1.2–1.9 days. Replacing a 15-watt lamp with a 10-watt LED saves about IDR 30,660 per point annually, while improving partner understanding of renewable energy.
Study of Green Hydrogen Production from Excess Electricity Off-Grid Rooftop PV, FT-02, Universitas Tidar Arbye S; Achmad Aziizudin; Angger Bagus Prasetiyo; Cahyo Wibi Yogiswara; Setya Drana Harry Putra; Herlambang Fawwaz Prabowo; Tiko Es Saputra Ceren
Rekayasa Hijau : Jurnal Teknologi Ramah Lingkungan Vol 10, No 2 (2026)
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/jrh.v10i2.182-198

Abstract

AbstrakPemanfaatan PLTS atap berpotensi menghasilkan excess electricity ketika produksi energi surya melebihi kebutuhan beban, yang berpeluang dimanfaatkan untuk produksi green hydrogen melalui elektrolisis. Penelitian ini mengkaji potensi produksi green hydrogen berbasis excess electricity dari sistem PLTS atap di wilayah Magelang menggunakan pendekatan analitis berbasis data simulasi sekunder. Data utama diperoleh dari simulasi HOMER Pro pada sistem PLTS off-grid berkapasitas 14,6 kWp di Gedung FT02 Universitas Tidar. Potensi produksi hidrogen dihitung menggunakan pendekatan specific energy consumption (SEC) untuk tiga skenario teknologi: PEM electrolyzer, Alkaline Water Electrolyzer (AWE), dan HHO generator. Hasil analisis menunjukkan sistem PLTS objek kajian menghasilkan excess electricity sebesar 13.841 kWh/tahun (67,1% dari total produksi energi), yang berpotensi menghasilkan 240,71–287,75 kg H₂/tahun (PEM), 259,19–276,82 kg H₂/tahun (AWE), dan 153,79–238,64 kg H₂/tahun (HHO). Proyeksi indikatif pada enam lokasi PLTS atap di wilayah Magelang menunjukkan potensi produksi green hydrogen total sebesar 3.099–3.707 kg H₂/tahun untuk skenario PEM. Kata kunci: green hydrogen, excess electricity, plts atap, elektrolisis, magelang. AbstractRooftop PV systems can generate excess electricity when solar production exceeds load demand, offering an opportunity for green hydrogen production through electrolysis. This study evaluates the potential green hydrogen production from excess electricity of a rooftop off-grid PV system in Magelang, using secondary simulation data. The main dataset was obtained from a HOMER Pro simulation of a 14.6 kWp off-grid rooftop PV system at the FT02 Building, Universitas Tidar. Hydrogen production potential was calculated using the specific energy consumption (SEC) approach for three technology scenarios: PEM electrolyzer, Alkaline Water Electrolyzer (AWE), and HHO generator. Results show the system produces 13,841 kWh/year of excess electricity (67.1% of total energy production), potentially yielding 240.71–287.75 kg H₂/year (PEM), 259.19–276.82 kg H₂/year (AWE), and 153.79–238.64 kg H₂/year (HHO). Indicative projections for six rooftop PV locations in Magelang show a total green hydrogen potential of 3,099–3,707 kg H₂/year under the PEM scenario. Keywords: green hydrogen, excess electricity, rooftop solar PV, water electrolysis, magelang
Pemberdayaan Masyarakat Melalui Penanaman Tanaman Obat Keluarga di Padukuhan Konteng Kalurahan Sumberadi Kabupaten Sleman Frilia Lili Rahmawati; Namira Nasywa Ramadhina; Zahrani Puspita Dewi; Khalisa Ramadhani Prayogo; Angger Bagus Prasetiyo; Unggul Pamekas; Laurentius Oktavius; Ahmad Zidan Al Arif
Abdi Cendekia : Jurnal Pengabdian Masyarakat Vol 5 No 3 (2026): September
Publisher : Yayasan Zia Salsabila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61253/abdicendekia.v5i3.1135

Abstract

Program pemberdayaan masyarakat melalui penanaman Tanaman Obat Keluarga (TOGA) dilaksanakan di Padukuhan Konteng, Kelurahan Sumberadi, Kabupaten Sleman, sebagai upaya meningkatkan pengetahuan, kesadaran, dan keyakinan masyarakat dalam memanfaatkan tanaman obat untuk menjaga kesehatan keluarga. Kegiatan ini menggunakan metode deskriptif dengan pendekatan edukatif yang meliputi tahap persiapan, pelaksanaan, dan evaluasi. Sosialisasi dilakukan melalui penyampaian materi, diskusi interaktif, tanya jawab, serta pembagian bibit TOGA berupa jahe merah, kencur, kumis kucing, dan sereh. Pengumpulan data dilakukan menggunakan observasi, dokumentasi, serta kuesioner pre-test dan post-test yang dianalisis secara deskriptif untuk melihat perubahan tingkat pemahaman peserta. Hasil kegiatan menunjukkan adanya peningkatan pengetahuan masyarakat pada seluruh indikator yang diukur setelah mengikuti sosialisasi. Rata-rata skor total peserta meningkat dari 39,60 pada pre-test menjadi 43,52 pada post-test, dengan seluruh peserta berada pada kategori pengetahuan tinggi setelah kegiatan. Sebanyak 72% responden mengalami peningkatan skor individu, yang menunjukkan bahwa program edukasi dan pemberian bibit TOGA efektif dalam mendorong masyarakat untuk membudidayakan serta memanfaatkan tanaman obat keluarga secara mandiri. Kegiatan ini dapat mendukung pemanfaatan pekarangan rumah secara produktif sekaligus memperkuat kemandirian masyarakat dalam menjaga kesehatan keluarga secara berkelanjutan.
Co-Authors A. Assagaf, Iman Pradana Ababil, Ismail Zulpria Abdul Muhyi Achmad Aziizudin Achmad Qodim Aditya Rahayu Agung Ariesta, Igan Agung Purnomo Agus Dhombo, Armin Ahmad Zidan Al Arif Akhmad Nurdin akhmad nurdin Alda, Ragil Aldi Sinar Saputro Alva Edy Tontowi Andrean Emaputra Anita Susiana Antika Prasetyaningtyas Arbye S Ariyanto Assagaf, Iman Pradana A Assagaf, Iman Pradana A. Asyratul Azmi, Azhim Ayuhikmatin Sekarjati, Kartinasari Azhim Asyratul Azmi Azhim Asyratul Azmi Azhim Azyratul Azmi Bachtiar, Marsellinus Bambang Hari Priyambodo Bambang Irawan Bayu Purnama Marwita Darmayani Cahyo Wibi Yogiswara Cahyo Wibi Yogiswara Charlos Basilio Molo, Richardus Dandung Rudy Hartana Daru Sugati Dede Dwi Handoko Didit Setyo Pamuji Dimas Ahnafi Aflah Dominggus Daniel Lefmanut Dwi Setyorini Dzikrina Salsabila Yasmin Eka Sulistyaningsih Eka Yawara Endang Widuri Asih Enni Sulfiana Fajar Paundra Fajar Yulianto Prabowo Fajri Kurniawan Fakhril Husain Faris Arifin Fauzun Fauzun Fauzun Ferry Setiawan Frilia Lili Rahmawati Hadi Susanto Hafidh Jakahadiyuda Prawira Hafiz Ziddin Harsoyo Sraun, Samuel Herlambang Fawwaz Prabowo Herlambang Fawwaz Prabowo Hidayat, Muhammad Maksum Ichwan Noor Ardiyat Ihwanul Aziz Ilmal Yaqin, Rizqi Iman Pradana A Assagaf Iman Pradana A Assagaf Iman Pradana A. Assagaf Iman Pradana A. Assagaf Iman Pradana A. Assagaf Iman Pradana A. Assagaf Iman Pradana A. Asssagaf Iqbal Rizaki Putra Iqbal Zulfikar Iqbal Zulfikar Alief Utama Iqbal Zulfikar Alief Utama Jaya Asmara, Andra Jemssy Ronald Rohi Joan Magmadian, Alfred Juniar , Fatur Rizki Anggun Juniawan Preston Siahaan Khalisa Ramadhani Prayogo Laurentius Oktavius Masbin Dahlan Mega Inayati Rif`ah Mega Lazuardi Umar Muh. Nurul Haq Amaluddin Muh. Setiawan Sukardin Muhammad Luqman Bukhori Muhammad Salim Alaydrus Nadiansyah, Irham Namira Nasywa Ramadhina Nurhidayat Nurwimbo, Fani Pasolang, Novtricho Windy Putra, Brian Teo Putra, Ikbal Rizki Putu Susatriawan, Anak Agung Ratih Purnama Sari Riza Aditya, Sena Rizqi Ilmal Yaqin Rizqi Prastowo Robbika, Fadzkurisma Rosyidi Hidayat Rudy Hartana, Dandung Sehono Setya Drana Harry Putra Setya Drana Harry Putra Setyorini, Dwi Sigiet Haryo Pranoto Sigit Haryo Pranoto Sinar Saputro, Aldi Sulfiana, Enni Sutrisna Sutrisna Sutrisna Syafaatullah, Achmad Qodim Tiko Es Saputra Ceren Tiko Es Saputra Ceren Toto Rusianto Toto Rusianto Unggul Pamekas Utomo, Putro Wartono Wartono Whonica Widyanita Harwijayanti Yonathan Ito Yudi Candra, Andreas Zahrani Puspita Dewi Zidan Yusron Wijanarko Zidan Yusron Wijanarko Zuhair, Alvin