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All Journal IPTEK The Journal of Engineering MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Jurnal Mekanik Terapan Mitra Akademia: Jurnal Pengabdian Masyarakat
Yuli Mafendro Dedet Eka Saputra
Politeknik Negeri Jakarta
Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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Rancang Bangun Perangkat Perekam Data Konsumsi Bahan Bakar Dan Rasio Udara-Bahan Bakar Digital Untuk Analisa Unjuk Kerja Mesin Bensin Pembakaran Dalam Tullah, Muhammad Hidayat; Saputra, Yuli Mafendro Dedet Eka; Fachruddin, Fachruddin; Utomo, Machfud Priyo; Rahman, Farhan Maulana
Jurnal Mekanik Terapan Vol 1, No 2 (2020): November
Publisher : Jurnal Mekanik Terapan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Kebutuhan akan data aktual terkait unjuk kerja mesin menjadi sangat penting dalam dunia penelitian. Data-data yang presisi mutlak diperlukan sebagai dasar dalam melakukan suatu pengembangan teknologi sebagai pembanding antara kondisi sebelum dan sesudah dilakukannya pengembangan. Penelitian ini adalah rancang bangun perangkat perekam data konsumsi bahan bakar dengan target ketelitian mencapai 10ml/menit dan Rasio Udara-Bahan Bakar (AFR) Digital untuk analisa unjuk kerja mesin pembakaran dalam. Konsumsi bahan bakar dihitung dengan pengukuran volume bahan bakar secara real-time sepanjang mesin digunakan dengan memanfaatkan sensor load cell sebagai pemberi informasi ke digital data logger dengan hasil tingkat ketelitian mencapai 3,4ml/menit. AFR diukur dengan menggunakan sensor oksigen yang diletakkan pada saluran gas buang mesin dengan hasil range pembacaan 10 s.d 20 AFR.
Influence Of The Compression Ratio And Ignition Timing On CB150R Engine Performance With 85% Bioethanol gasoline Blended Fuel Yuli Mafendro Dedet Eka Saputra; Bambang Sudarmanta; Marthen Paloboran
IPTEK The Journal of Engineering Vol 3, No 3 (2017)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23378557.v3i3.a3207

Abstract

Subtitution of the fuel type in the gasoline engine will change the setting The engine parameters as well as modify it to minimize engine performance degradation And increased exhaust emissions. Utilization of ethanol (85% vol.) - gasoline (15% vol.) The combination (E-85) for the gasoline engine requires some machine modifications and setting parameters due to differences in properties and characters between ethanol and gasoline. This study aims to test the effect of ignition timing and compression ratio on the performance of the engine and emission gas emissions. Ignition time varies between 16-24 Before Top Dead Center (BTDC) d. While the compression ratio variation consists of 11 (standart); 12, 12.5 and 13: 1. It was found that advancing the ignition time range 16o-24o BDTC with 13: 1 compression ratio can increase the performance of torque, bmep, and thermal efficiency respectively 7.94%, 5, 82% and 1.6% respectively, and a decrease of emissions of co and hc respectively 56.6% and 0.6% when compared with the performance of standard gasoline-fueled engines (E0).
Experimental Study of the Effect of Increased Compression Ratio on the Torque and Power of the Honda CB 150R Engine Using E85 Fuel Yuli Mafendro Dedet Eka Saputra; Muhammad Hidayat Tullah
MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Vol 3 No 1 (2021): Motivection : Journal of Mechanical, Electrical and Industrial Engineering
Publisher : Indonesian Mechanical Electrical and Industrial Research Society (IMEIRS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (396.69 KB) | DOI: 10.46574/motivection.v3i1.82

Abstract

Switching from fossil fuels to alternative fuels requires adjusting several engine parameters to avoid a decrease in engine torque and power. This happens because of the different properties of different fuels. One of the parameters that must be set is the compression ratio. This study aims to determine the effect of increasing the compression ratio on the torque and power of the Honda CB 150R engine using 85% bioethanol (E85) as fuel. The research method used an experimental method with 2 types of fuel and variations in the compression ratio. From the research results, it can be seen that the torque and power using E85 fuel have increased respectively by 1.08% and 1.5% when compared to the standard compression ratio using fossil fuels. Pergantian bahan bakar dari fosil ke bahan bakar alternatif membutuhkan pengaturan pada beberapa parameter engine untuk menghindari terjadinya penurunan pada torsi dan daya mesin. Hal ini terjadi karena perbedaan dari properties bahan bakar yang berbeda. Salah satu parameter yang harus di atur adalah rasio kompresi. Penelitian ini bertujuan untuk mengatahui pengaruh dari peningkatan rasio kompresi terhadap torsi dan daya engine Honda CB 150R menggunakan bahan bakar bioetanol 85% (E85). Metode penelitian menggunakan metode eksperimen dengan 2 jenis bahan bakar dan variasi pada rasio kompresi. Dari hasil penelitian terlihat bahwa torsi dan daya dengan menggunakan bahan bakar E85 mengalami peningkatan masing-masing sebesar 1,08 % dan 1,5 % jika dibandingkan dengan rasio kompresi standard menggunakan bahan bakar fosil.
Rancang Bangun Perangkat Perekam Data Konsumsi Bahan Bakar Dan Rasio Udara-Bahan Bakar Digital Untuk Analisa Unjuk Kerja Mesin Bensin Pembakaran Dalam Muhammad Hidayat Tullah; Yuli Mafendro Dedet Eka Saputra; Fachruddin Fachruddin; Machfud Priyo Utomo; Farhan Maulana Rahman
Jurnal Mekanik Terapan Vol 1 No 2 (2020): November 2020
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/jmt.v1i2.3362

Abstract

Kebutuhan akan data aktual terkait unjuk kerja mesin menjadi sangat penting dalam dunia penelitian. Data-data yang presisi mutlak diperlukan sebagai dasar dalam melakukan suatu pengembangan teknologi sebagai pembanding antara kondisi sebelum dan sesudah dilakukannya pengembangan. Penelitian ini adalah rancang bangun perangkat perekam data konsumsi bahan bakar dengan target ketelitian mencapai 10ml/menit dan Rasio Udara-Bahan Bakar (AFR) Digital untuk analisa unjuk kerja mesin pembakaran dalam. Konsumsi bahan bakar dihitung dengan pengukuran volume bahan bakar secara real-time sepanjang mesin digunakan dengan memanfaatkan sensor load cell sebagai pemberi informasi ke digital data logger dengan hasil tingkat ketelitian mencapai 3,4ml/menit. AFR diukur dengan menggunakan sensor oksigen yang diletakkan pada saluran gas buang mesin dengan hasil range pembacaan 10 s.d 20 AFR.
Studi Eksperimental Pengaruh Penigkatan Rasio Kompresi Terhadap Torsi Mesin Otto 4 langkah Satu Silinder Dengan Bahan Bakar Bioetanol 85% (E85) Yuli Mafendro Dedet Eka Saputra; Muhammad Hidayat Tullah
Jurnal Mekanik Terapan Vol 2 No 1 (2021): Mei 2021
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/jmt.v2i1.3584

Abstract

Penggantian jenis bahan bakar dari bahan bakar fosil (gasoline) ke bahan bakar alternative membutuhkan perubahan pada beberapa parameter mesin dan memodifikasnya untuk meminimalkan penuruantorsi pada mesin. Penggunaan Bioetanol 85% (E85) membutuhkan perubahan pada beberapa parameter mesin salah satunya adalah rasio kompresi. Penelitian ini bertujuan untuk nengetahui pengaruh peningkatan ratio kompresi terhadap torsi mesin otto 4 langkah dengan menggunakan bahan bakar E85. penigkatan ratio kompresi adalah dari 11 :1 (standar)ke 12 :. Dari hasil penelitian didapatkan bahwa dengan menaikan ratio kompresi dari ratio kompresi standar (11 :1) ke 12:1 dengan menggunakan bahan bakar E85 dapat meningkatkan torsi sebesar 1,08% pada putaran mesin 7000 RPM jika dibandingkan dengan pengunaan bahan bakar fosil (Gasoline) .
Performance Study of Monocrystalline Type Solar Panels for Street Lighting in Sibolga Area Yuli Mafendro Dedet Eka Saputra; Mochamamd Tendi Noer Ramadhan
MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Vol 5 No 2 (2023): Motivection : Journal of Mechanical, Electrical and Industrial Engineering
Publisher : Indonesian Mechanical Electrical and Industrial Research Society (IMEIRS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (667.783 KB) | DOI: 10.46574/motivection.v5i2.206

Abstract

In the Sibolga area, there is still a shortage of electricity supply, especially for street lighting, so accidents often occur, meanwhile there has a relatively large average solar radiation intensity is 4,784 Wh/m2/day so that potential for PLTS installation. This research aims to determine the performance of monocrystalline solar panels with the addition of a heatsink cooling fan in street lighting. The method used is an experimental. The test begins with the survey, potential calculation, design, testing, data collection and analysis. The solar panel used monocrystalline 10 WP with a heatsink cooling fan. The parameters are the panel temperature, voltage, and current from the solar panel. The results obtained are the temperature on the solar panel without heatsink cooling fan reaches 56.10°C with efficiency 11% and on the solar panel with heatsink cooling fan only gets 45.50°C with efficiency increases to 13%. This shows that the addition of a heatsink cooling fan has succeeded in cooling the temperature of the solar panels and increasing the efficiency level of solar panel performance for street lighting.
An Investigation into the Impact of Elbow Angle, Flow Rate, and Flywheel Diameter on the Performance of a Micro Hydroelectric Power Plant (PLTMH) Prototype Widiawaty, Candra Damis; Saputra, Yuli Mafendro Dedet Eka; Santoso, Budi; Gunadi, Gun Gun Ramdlan; Sumadipraja, Berlian Firdaus; Yuliana, Arifia Eka; Can, Ahlul Haq; Handaru, Fathir Zuhayr; Khairunisa, Nabila Lufky
MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Vol 6 No 3 (2024): Motivection : Journal of Mechanical, Electrical and Industrial Engineering
Publisher : Indonesian Mechanical Electrical and Industrial Research Society (IMEIRS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46574/motivection.v6i3.383

Abstract

The Micro Hydroelectric Power Plant Simulator (MHP) serves as a teaching tool to understand the principles and factors influencing electrical power output. While previous studies have examined the impact of turbine types, elbow angles, and flow rates, limited research has focused on the effect of flywheel diameter. The flywheel diameter influences the torque generated for generator rotation. This study, conducted on the MHP simulator at the Energy Laboratory of Jakarta State Polytechnic, explores the effects of variations in elbow angle, flow rate, and flywheel diameter on electrical power output. Experimental results reveal that these parameters significantly impact power generation. Notably, in case 1, with a 45° elbow angle, a flow rate of 7 L/s, and a 30 cm flywheel diameter, the system produces the highest output of 63 W. These findings underscore the importance of flywheel diameter in optimizing micro-hydropower system efficiency, offering insights for future plant design, especially in water-scarce regions. Simulator Pembangkit Listrik Tenaga Mikro Hidro (PLTMH) digunakan sebagai alat pembelajaran untuk memahami prinsip dan faktor yang mempengaruhi keluaran daya listrik. Meskipun penelitian sebelumnya telah mengkaji pengaruh jenis turbin, sudut siku-siku, dan debit aliran, penelitian tentang pengaruh diameter flywheel masih terbatas. Diameter flywheel mempengaruhi torsi yang dihasilkan untuk memutar generator. Penelitian ini dilakukan pada simulator PLTMH di Laboratorium Energi Politeknik Negeri Jakarta untuk menguji pengaruh variasi sudut siku-siku, debit aliran, dan diameter flywheel terhadap keluaran daya listrik. Hasil eksperimen menunjukkan bahwa ketiga parameter tersebut mempengaruhi secara signifikan pembangkit daya listrik. Pada kasus 1, dengan sudut siku-siku 45°, debit aliran 7 L/s, dan diameter flywheel 30 cm, dihasilkan daya tertinggi sebesar 63 W. Temuan ini menekankan pentingnya diameter flywheel dalam mengoptimalkan efisiensi sistem mikro-hidro, yang dapat menjadi acuan perancangan pembangkit mikro-hidro di daerah dengan sumber daya air terbatas.
Optimalisasi Energi Surya Pada Hidroponik Mekartani Berbasis Iot untuk Keberlanjutan Ekonomi dan Lingkungan Sonki Prasetya; Isnanda Nuriskasari; Saputra, Yuli Mafendro Dedet Eka
Mitra Akademia: Jurnal Pengabdian Masyarakat Vol 8 No 1 (2025): Mitra Akademia: Jurnal Pengabdian Masyarakat
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/mapnj.v8i1.7185

Abstract

The Mekartani Community faces two major challenges in managing its hydroponic garden, the high electricity costs for operating the Internet of Things (IoT)-based system and the discontinuation of internet connectivity support from the local government, which has rendered the automation system unable to function optimally. This community service program was implemented to support the adoption of renewable energy through the installation of a Solar Power Plant (PLTS) system integrated with an Internet of Things (IoT)- based hydroponic unit at the Mekartani Community Hydroponic Garden, RW 016, Mekarjaya Village, Depok. The activities began with coordination with the RW and Village Team, inspection of existing components, and updating the IoT-based monitoring system. By installing mobile Wi-Fi devices and IoT- based power meters, electricity consumption was monitored for one month to determine the appropriate energy requirements, averaging 3.6 kWh per day. The installation of solar panels and improvement of the IoT-based monitoring system was carried out by the Energy Conversion Engineering Technology Lecturers Team from PNJ, along with PNJ students. Operational and maintenance training on the PLTS and IoT hydroponic system was provided to the community to ensure system sustainability. Survey results indicated that more than 90% of the partners experienced benefits from this program, in terms of ease of maintenance and hydroponic monitoring, supporting both environmental sustainability and the community’s economy. Keywords, Hydroponics, Solar Panels, Control System, Monitoring, Mekartani Community Abstrak Komunitas Mekartani menghadapi dua kendala utama dalam pengelolaan kebun hidroponik, yaitu tingginya biaya listrik untuk operasional sistem berbasis Internet of Things (IoT) dan terhentinya dukungan koneksi internet dari pemerintah daerah, sehingga sistem otomatisasi tidak dapat berfungsi optimal. Program pengabdian kepada masyarakat ini dilaksanakan untuk mendukung penerapan energi terbarukan melalui pemasangan sistem Pembangkit Listrik Tenaga Surya (PLTS) yang terintegrasi dengan unit hidroponik berbasis Internet of Things (IoT) di Kebun Hidroponik Komunitas Mekartani, RW 016, Kelurahan Mekarjaya, Depok. Kegiatan ini dimulai dengan koordinasi bersama Tim RW dan Kelurahan, pengecekan komponen yang ada, serta pembaruan sistem monitoring berbasis IoT. Dengan pemasangan perangkat mobile Wi-Fi dan power meter berbasis IoT, konsumsi listrik dipantau selama satu bulan untuk menentukan kebutuhan energi yang tepat, yaitu rata-rata 3,6 kWh per hari. Pemasangan panel surya dan penyempurnaan sistem monitoring berbasis IoT dilakukan oleh Tim Dosen Teknologi Rekayasa Konversi Energi PNJ bersama mahasiswa PNJ. Pelatihan operasional dan pemeliharaan PLTS serta sistem IoT hidroponik diberikan kepada komunitas untuk memastikan keberlanjutan sistem. Hasil survei menunjukkan bahwa lebih dari 90% mitra merasakan manfaat dari kegiatan ini, baik dari segi kemudahan perawatan maupun monitoring hidroponik, yang mendukung keberlanjutan lingkungan dan ekonomi komunitas. Kata kunci, Hidroponik, Panel Surya, Sistem Kendali, Monitoring, Komunitas Mekartani.
Instalasi Penerangan Jalan Umum Berbasis Energi Terbarukan Beserta Perawatannya di Kelurahan Kalimulya, Kota Depok Nuriskasari, Isnanda; Saputra, Yuli Mafendro Dedet Eka; Nainggolan, Benhur; Ridwan , Emir
Mitra Akademia: Jurnal Pengabdian Masyarakat Vol 7 No 2 (2024): Mitra Akademia: Jurnal Pengabdian Masyarakat
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/mapnj.v7i2.6454

Abstract

Kalimulya Depok Village requires a solar-powered public street lighting program. The objective of this program is not only to address the community's issue of insufficient street lighting but also to serve as an educational initiative by PNJ faculty members to enlighten the residents of Kalimulya about the utilization of solar energy as a sustainable source of electricity, aiming to achieve the village's aspiration for energy self-sufficiency. The activities encompassed in this initiative include a survey for the placement of solar street lighting poles, coordination with Kelurahan Kalimulya, system planning, installation of solar street lighting, and training for the operation and maintenance of solar street lighting systems. This endeavor has yielded positive outcomes for the partners, as evidenced by the installation of 2 solar street lighting units in RW 02 and RW 07 of Kalimulya Depok. Additionally, participants in the training program have acquired knowledge and skills related to renewable energy, expressing a high level of satisfaction
Co-Authors Bambang Sudarmanta Can, Ahlul Haq Candra Damis Widiawaty, Candra Damis Dwi Budi Santoso Fachruddin Fachruddin Fachruddin Fachruddin Farhan Maulana Rahman Gunadi, Gun Gun Ramdlan Handaru, Fathir Zuhayr Isnanda Nuriskasari Khairunisa, Nabila Lufky Machfud Priyo Utomo Marthen Paloboran Mochamamd Tendi Noer Ramadhan Muhammad Hidayat Tullah Muhammad Hidayat Tullah Muhammad Hidayat Tullah Muhammad Hidayat Tullah, Muhammad Hidayat Nainggolan, Benhur Rahman, Farhan Maulana Ridwan , Emir Sonki Prasetya Sumadipraja, Berlian Firdaus Utomo, Machfud Priyo Yuliana, Arifia Eka