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All Journal Jurnal Energi Dan Manufaktur FLYWHEEL : Jurnal Teknik Mesin Untirta ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Jurnal Rekayasa Mesin Info-Teknik Briliant: Jurnal Riset dan Konseptual JTERA (Jurnal Teknologi Rekayasa) Turbulen : Jurnal Teknik Mesin Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Penelitian dan Pengabdian Kepada Masyarakat UNSIQ Jurnal Rekayasa Hijau Logic : Jurnal Rancang Bangun dan Teknologi Journal of Engineering and Scientific Research (JESR) Jurnal Aplikasi Dan Inovasi Ipteks SOLIDITAS Jurnal Energi dan Teknologi Manufaktur Abdi Dosen : Jurnal Pengabdian Pada Masyarakat STEAM Engineering : Journal of Science, Technology, Education And Mechanical Engineering Scientific Journal of Mechanical Engineering Kinematika Reswara: Jurnal Pengabdian Kepada Masyarakat Jurnal Pengabdian dan Pemberdayaan Nusantara (JPPNu) Bulletin of Science Education Jurnal Teknologi Jurnal Ilmiah Fakultas Sains dan Teknik Universitas Nusa Cendana Logic : Jurnal Rancang Bangun Dan Teknologi Jurnal Teknik Mesin, Industri, Elektro dan Informatika Journal of Creative Student Research International Journal of Community Engagement Payungi Student Research Journal Journal of Mechanical Engineering Jurnal Polimesin Venus: Jurnal Publikasi Rumpun Ilmu Teknik Evrimata: Journal of Mechanical Engineering
Asrori Asrori
Politeknik Negeri Malang
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Kajian Kelayakan Solar Rooftop On-Grid untuk Kebutuhan Listrik Bengkel Mesin di Polinema ASRORI, ASRORI; RAMDHANI, ACHMAD FAJAR; NUGROHO, PIPIT WAHYU; ERYK, IRWAN HERYANTO
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 10, No 4: Published October 2022
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v10i4.830

Abstract

ABSTRAKPenelitian ini bertujuan melakukan studi kelayakan berupa perencanaan, simulasi dan analisis teknis maupun ekonomis pemasangan solar rooftop sistem on-grid di gedung Teknik Mesin Politeknik Negeri Malang (Polinema). Metode perencanaan dan simulasi menggunakan software PvSyst 6.88. Kajian kelayakan instalasi solar rooftop ini berdasarkan : Net Present Value (NPV), Profitability Index (PI) dan Pay Back Period (PBP).Kebutuhan listrik di bengkel mesin adalah 505,8 kWh/hari. Daya Rencana solar rooftop sebesar 332 kWh (65,6%) dan sisanya dari PLN. Hasil simulasi diperoleh panel surya tipe monocrystalline 440 Wp sebanyak 169 unit dan 6 unit inverter jaringan 12 kVa.Energi listrik yang diproduksi dapat mencapai 101,6 MWh/tahun. Performa sistem sebesar 83,63%. Modal awal adalah Rp. 1.281.440.000,00, NPV adalah Rp. 919.842.956,00, dan PI bernilai 1,72. Sehingga estimasi PBP adalah 11,18 tahun. Sehingga berdasarkan aspek teknis dan aspek ekonomis, proyek Solar Rooftop On-Grid ini dinilai layak dilaksanakan.Kata kunci: studi kelayakan, tenaga surya, solar rooftop, on-grid, PvSyst ABSTRACTThe purpose of this research is to conduct a feasibility study on installing a solar rooftop on-grid system at the State Polytechnic of Malang's Mechanical Engineering building, which will include design, simulation, and technical and economic analysis.PvSyst 6.88 software is used in the planning and simulation methods.Analysis of investment feasibility consists of Net Present Value (NPV), Profitability Index (PI), and Pay Back Period (PBP). The electricity demand in the machine workshop reaches 505.8 kWh/day. The solar rooftop solar plan power is 332 kWh (65.6%) and the rest is from PLN. The simulation results obtained 169 units of 440 Wp monocrystalline solar panels and 6 units of 12 kVa grid inverters. The electrical energy produced can reach 101.6 MWh/year. The performance ratio is 83.63%.The total investment is IDR 1,281,440,000with an NPV of IDR 919,842,956, and PI is 1.72. So the estimated PBP is 11.18 years. So based on the technical and economic aspects, the Solar Rooftop On-Grid project is considered feasible.Keywords: feasibility study, solar energy, solar rooftop, on-grid, PvSyst
Analisis Kekuatan Lentur Pegas Daun Truk dan Mobil Hasil Tempering Raihan Insan Nararya; Kris Witono; Asrori Asrori; Eko Yudiyanto; Syamsul Hadi
Venus: Jurnal Publikasi Rumpun Ilmu Teknik  Vol. 3 No. 1 (2025): Venus: Jurnal Publikasi Rumpun Ilmu Teknik
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/venus.v3i1.717

Abstract

Leaf springs are one of the suspension systems that are still widely used in various modes of transport such as cars and trucks. The spring functions to support the load and reduce vibration from operational activities. This study aims to analyse the bending strength and hardness of steel leaf springs of trucks and cars resulting from tempering heat treatment. The three point bending method was used as the flexural strength testing method and the Rockwell C Hardness method testing was used for hardness testing with leaf springs in raw, tempered 460°C, and tempered 510°C conditions. From the results of the study, the highest average bending strength value of 3733,55 MPa was obtained and an average roughness value of 31,8 HR was obtained for the 510°C tempered truck leaf springs. This also applies to the 510°C tempered car leaf springs, where the average bending strength value obtained is 3392,65 MPa and the average hardness value obtained is 29,5 HR. Thus, it is recommended that tempering heat treatment that can be applied to truck and car leaf springs be carried out at 510°C to increase the bending strength and ductility of the leaf springs.
Pengaruh Penggunaan Sensor Tingkat Minyak pada Sistem Monitoring Tangki Bahan Bakar Alat Berat Bulldozer Hasan Abdillah; Asrori Asrori
Journal of Creative Student Research Vol. 2 No. 3 (2024): Juni : Journal of Creative Student Research
Publisher : Pusat Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jcsr-politama.v2i3.3901

Abstract

A bulldozer is a heavy equipment used to dig, push and move soil or coal material. The problem that often occurs with the D85ESS-2 bulldozer unit is that the unit often runs out of fuel. The D85ESS-2 bulldozer with serial number or SN.J11888 does not have a fuel indicator on the dashboard, so it must be checked every time. The purpose of this research is to analyze and measure the impact of the sensor rod angle and the physical condition of the float on the sensor on the accuracy of the fuel sensor. This research uses a quantitative method by modifying the size of the angle on the sensor by 75º, 85º (standard) and 95º and by adding variations in the physical condition of the float (good condition and 1 cm crack). The test was carried out using a variation in the amount of fuel of 50% or 205 liters. The results of this research indicate that the accuracy of measurements on the sensor is influenced by the physical condition of the buoy and the size of the angle. The highest result occurred at an 85º angle with a good float of 97.78%, while the lowest result was 73.32% at a 95º angle with a 1 cm cracked float condition.
APLIKASI TEKNOLOGI BIO-DRYING UNTUK PROSES PENGERINGAN SAMPAH ORGANIK MENJADI BAHAN BAKAR Naryono, Eko; Lusiani, Cucuk Evi; Ariani, Ariani; Sa'diyah, Khalimatus; Asrori, Asrori
Reswara: Jurnal Pengabdian Kepada Masyarakat Vol 5, No 1 (2024)
Publisher : Universitas Dharmawangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46576/rjpkm.v5i1.3740

Abstract

Desa Wringinsongo merupakan desa binaan dari Politeknik Negeri Malang (Polinema) sejak tahun 2020 dan menjadi mitra kegiatan pengabdian kepada masyarakat (PkM). Berdasarkan hasil diskusi antara Jurusan Teknik Kimia, Polinema dan warga Desa Wringinsongo, salah satu masalah di desa tersebut yang dapat diselesaikan sesuai dengan bidang ilmu di Jurusan Teknik Kimia adalah pengolahan sampah menjadi bahan bakar. Permasalahan sampah yang mencemari lingkungan di Desa Wringinsongo disebabkan banyaknya sampah yang ditinggalkan oleh pengunjung terutama di daerah wisata pemandian alam. Teknologi bio-drying melalui proses pengeringan sampah menjadi bahan bakar dapat digunakan sebagai alternatif solusi yang ramah lingkungan yang dapat diwujudkan dalam bentuk kegiatan PkM. Hal ini sejalan dengan Rencana Strategis Polinema (Renstra Polinema 2021-2025) di bidang pemeliharaan lingkungan hidup dan pengelolaan Sumber Daya Alam (SDA) untuk Desa Binaan Polinema, Wringinsongo, Kec. Tumpang, Kab. Malang. Kegiatan PkM yang dilaksanakan pada bulan Juni-Agustus 2022 berjalan lancar dan para peserta sangat antusias untuk mempraktikkan secara langsung pengeringan sampah organik dengan metode teknologi bio-drying untuk dijadikan sebagai bahan bakar alternatif
Analisis Pengaruh Suhu Panel Surya Terhadap Output Panel Performance Jaya, Harie Satiyadi; Rahmat, Muhamad Hudan; Asrori, Asrori
Journal of Mechanical Engineering Vol. 1 No. 1 (2024): January
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/jme.v1i1.2189

Abstract

The main obstacle that greatly affects solar power output systems is the low conversion efficiency of solar panels, which is greatly influenced by their operating temperature. Failure to consider solar panel temperature increases the financial risks of installing the installation system. In this research, the output performance of solar panels was examined in outdoor conditions. All data was measured and recorded from 09.00 to 17.00, over 30 minute intervals. Panel temperature measurements were carried out using a Ditec C355 infrared thermometer. And then compared with using Pvsyst software. The output power of a solar panel is highly dependent on the solar radiation that falls on its surface. The amount of incoming sunlight is much higher during the hours from 11.00 to 13.00, which can be determined as the peak of the sun during the day. So it can be concluded that the ideal climate for setting up a large solar installation system is a cool and sunny climate.
Pengaruh Jumlah Slot Stator Terhadap Kecepatan Putaran dan Suhu pada Motor BLDC Yuliyanto, Catur Fajar; Asrori
Journal of Mechanical Engineering Vol. 1 No. 3 (2024): July
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/jme.v1i3.2962

Abstract

Motor Brushless Direct Curent (BLDC) adalah jenis motor DC yang tidak menggunakan brush, dan memiliki kinerja yang sangat efisien, keandalan tinggi, umur lebih Panjang. Motor ini terdiri dari bagian rotor yang terdapat magnet permanen dan pada bagian stator terdiri dari lilitan kawat tembaga untuk menciptakan medan magnet. Inti stator untuk mengalirkan fluks magnet ke setiap lilitan kawat, sehingga dapat memutar rotor. Stator memiliki sejumlah slot untuk menempatkan lilitan atau kumparan. Stator terbuat dari tumpukan lempengan pelat dengan material Silicon Steel. Fabrikasi motor BLDC dengan jenis motor Outrunner. Metode penelitian adalah dengan metode eksperimen. Sedangkan teknik pengumpulan data yang digunakan adalah pengujian langsung. Pada penelitian ini bertujuan untuk mengetahui pengaruh jumlah slot 15, 18 stator terhadap kecepatan putaran (RPM) dan suhu (°C). Hasil dari penelitian ini adalah bahwa motor BLDC dengan slot 15 mempunyai kecepatan putaran tertinggi 3833 RPM dan suhu 40,3 °C. Motor BLDC Slot 18 mempunyai kecepatan putaran 3834 RPM dan suhu maksimal 41,5 °C. sehingga dari hasil eksperimen tersebut disimpulkan bahwa jumlah slot mempengaruhi kecepatan putaran dan suhu motor BLDC.
SUSTAINABLE COMMUNITY SERVICE INNOVATION: IMPLEMENTING SOLAR POWER AND WATER FILTERS ON POULTRY FARMS IN TULUNGAGUNG REGENCY Asrori, Asrori; Nugroho, Pipit Wahyu; Yudiyanto, Eko; Witono, Kris; Adiwidodo, Satworo; Gunawan, Chandra; Rifa’i, Muhamad; Jaya, Harie Satiyadi
Abdi Dosen : Jurnal Pengabdian Pada Masyarakat Vol. 9 No. 3 (2025): SEPTEMBER
Publisher : LPPM Univ. Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/abdidos.v9i3.3033

Abstract

A community service initiative was undertaken at UD. Risky Barokah, an egg-laying poultry farm in Sumberingin Kidul, Ngunut District, Tulungagung Regency. Operating since 2010 on a 7,000 m² site with nearly 10,000 chickens, the farm has faced persistent challenges related to water contamination and high electricity costs. To mitigate these constraints, a solar-powered water filtration system and a 1.1 kWp photovoltaic installation were implemented. The intervention was directed toward improving poultry health and egg productivity through access to clean water, reducing dependence on the electrical grid, and strengthening staff capacity through technical training. Outcomes demonstrated estimated monthly electricity savings of Rp247,500–Rp330,000 and consistent water quality that enhanced flock health and output, while simultaneously lowering the farm's carbon footprint. The project highlights the applicability of renewable energy and appropriate technology in promoting sustainable and cost-effective poultry production.
Rancang Bangun Turbin Pelton Kapasitas 270 W Sebagai Alat Peraga Sistem Pembangkit Listrik Pico Hydro Asrori, Asrori; Adikusuma, Thomas; Yudiyanto, Eko
BRILIANT: Jurnal Riset dan Konseptual Vol 7 No 2 (2022): Volume 7 Nomor 2, Mei 2022
Publisher : Universitas Nahdlatul Ulama Blitar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (947.193 KB) | DOI: 10.28926/briliant.v7i2.973

Abstract

Alat peraga sangat dibutuhkan sebagai instrumen penting pembelajaran. Terutama untuk menunjang mata kuliah praktek mesin konversi energi di Jurusan Teknik Mesin, Politeknik Negeri Malang. Tujuan dari perancangan ini adalah mendesain, menganalisa kekuatan kerangka, membuat, merakit, menghitung biaya produksi dan menguji kinerja alat. Metode rancang bangun dimulai dengan desain gambar teknik menggunakan CATIA V6. Analisis kekuatan profil juga diperlukan, untuk memastikan keamanan alat peraga yang dibuat. Sedangkan perhitungan waktu pemesinan, operating plan dan production routing, merupakan faktor untuk menentukan biaya produksi. Hasil perancangan diperoleh prototipe alat peraga berukuran 1 x 1 x 1,5 m. Runner turbin pelton berbahan Cast Iron berdiameter 150 mm dengan jumlah sudu 17 buah. Sebuah pompa air 125W/AC dipasang sebagai pembangkit head dan debit masukan ke turbin pelton. Sedangkan, generator DC terhubung dengan poros turbin pelton dapat menghasilkan daya maksimum 270 W. Hasil pengujian diperoleh daya luaran generator sebesar 75,68 W, sehingga efisiensi sesaat dari alat peraga adalah 60,54 %. Biaya produksi alat peraga turbin pelton ini adalah Rp. 5.370.000,00.
Perbandingan Performansi Panel Surya Tipe Amorphous dan Polycrystalline terhadap Daya Pengisian Baterai Lithium-Ion pada Electric Scooter Asrori, Asrori; Harahap, M. Zusriansyah Fahrudin; Harijono, Agus
BRILIANT: Jurnal Riset dan Konseptual Vol 7 No 4 (2022): Volume 7 Nomor 4, November 2022
Publisher : Universitas Nahdlatul Ulama Blitar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (550.531 KB) | DOI: 10.28926/briliant.v7i4.1056

Abstract

Saat ini teknologi panel surya menjadi peralatan pengkorversi energi listrik yang  banyak digunakan untuk berbagai aplikasi. Panel surya mampu mengubah  sinar matahari menjadi energi listrik. Energi listrik tersebut selanjutnya dapat disimpan oleh baterai. Pada penelitian ini energi yang disimpan di dalam baterai akan digunakan untuk menggerakkan motor BLDC pada electric scooter. Tujuan dari penelitian ini yaitu untuk membandingkan unjuk kerja jenis panel surya terhadap pengisian daya listrik di electric scooter. Metode penelitian dengan pengujian langsung dari panel surya jenis thin film amorphous dan polycrystalline pada electric scooter. Alat monitoring sistem pengisian baterai berbasis arduino,  dirancang untuk mengukur tegangan, arus, daya, arus pengisian, dan persentase baterai. Sedangkan tingkat radiasi matahari diukur dengan solar power meter.  Hasil dari penelitian ini berupa electric scooter berbasis panel surya, alat monitoring sistem pengisian baterai. Tingkat radiasi matahari maksimum pada jam 12.00 WIB sebesar 887,4 W/m2 diperoleh bahwa panel surya Polycrystalline menghasilkan daya 11,87 Watt. Nilai ini lebih besar dibandingkan dengan jenis panel surya Thin Film Amorphous yang hanya mampu menghasilkan 10,56 Watt. Kesimpulan dari penelitian ini adalah panel surya jenis Polycrystalline lebih efisien digunakan dari pada panel surya jenis thin film amorphous. Namun secara estetika panel surya thin film amorphous lebih sesuai dengan desain electric scooter yang dirancang.
Hubungan Penggunaan Special Tool Terhadap Proses Pemasangan Pin Pada End Arm Excavator Pc200 M. Hilmi Syiva Afiat; Asrori Asrori
Student Research Journal Vol. 2 No. 3 (2024): Juni:Student Research Journal
Publisher : Sekolah Tinggi Ilmu Administrasi (STIA) Yappi Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/srjyappi.v2i3.1326

Abstract

Working in the mining sector has a fairly high occupational risk, especially for mechanics in carrying out heavy equipment maintenance. One of the maintenance carried out is the replacement of the excavator bucket. The excavator bucket is mounted on the end arm of the excavator which is connected using a locking pin. The pin installation process is carried out by hitting with a hammer, where this process has a number of occupational risks such as being hit, exposed to material, and fatigue which can result in work accidents. This study aims to minimize the occurrence of occupational risks by finding out the relationship between the use of special tools on safety and job duration for the locking pin installation process. The method used is experimental quantitative method and using fishbone diagram. By using a special tool, the installation of locking pins becomes safer because the factors that cause accidents when using palju can be eliminated and the manpower required becomes more efficient, but in terms of time it requires a longer duration due to the limitations of the tool that requires adjustment several times when used.
Co-Authors Adikusuma, Thomas Agus Harijono AGUS SETIAWAN Agus Sujatmiko Agus Sujatmiko Akhmad Faizin Alfarisyi, Mirza Fathus Syifa Ariani Ariani Ariani Ariani Cucuk Evi Lusiani Dani, Agus Dony Perdana Eko Naryono Eko Naryono Eko Yudiyanto Eryk, Eryk Eryk, Irwan Heryanto Faizal, Elka Faizul Ahmad Jatmiko FATHUR ROHMAN gumono Gunawan, Chandra Hadi Susilo, Sugeng Harahap, M. Zusriansyah Fahrudin Hari Rarindo Harie S. Jaya Harijanto, Priya Surya Harijono, Agus Haris Puspito Buwono Hasan Abdillah Helmy, Abdullah Heryanto Eryk, Irwan Heryanto, Irwan Hilmi Iman Firmansyah Imam Mashudi Jaya Harie Satiyadi Khalimatus Sa'diyah Kris Witono Kris Witono Kurnia, Arindrian Lisa Agustriyana Ludfi Setiawan Lulut W Lusiani, Cucuk Evi M Hasyim Nurwansyah M. Hilmi Syiva Afiat M. N. Wahyudi Abdullah Mardyansyah, AA Martawati, Mira Esculenta Maskur Maskur Mira Esculenta Martawati Mohammad Noor Hidayat Mohammad Noor Hidayat Mokhammad Khatami Muhamad Hanifudin Muhamad Zulvi Anam Muhammad Fakhruddin Nanang Qosim Novembrian Isam Dinata Nugroho, Pipit Wahyu Nurhadi - Pondi Udianto Pranoto, Bayu Putu Wijaya Sunu Qais Rakhmanda Yoga Pratama R.N. Akhsanu Takwim, R.N. Akhsanu Rahmad, Cahya Rahmat Muhamad Hudan Rahmat, Muhamad Hudan Raihan Insan Nararya RAMDHANI, ACHMAD FAJAR Ridho Ilham Rifa’i, Muhamad Ronilaya, Ferdian Sa'diyah, Khalimatus Santoso, Asfari Hariz Sapto Wibowo Saputra, Masramdhani Satworo Adiwidodo Subagiyo Subagiyo Sugeng Hadi Sugeng Hadi Susilo Sugeng Hadi Susilo Sugeng Hadi Susilo Suharto, Nugroho Sulistyono Sulistyono Sulistyono Sulistyono Suyanta Suyanta Syamsul Ph.D M.A. Hadi Walid, Achmad Yudianto, Eko Yuliyanto, Catur Fajar Zainuri, Ach. Muhib