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Pelatihan Perawatan Solar Cell Untuk Menjaga Unjuk Kerja Pembangkit Listrik Tenga Surya (PLTS) Kustanto, Muh. Nurkoyim; Ilminnafik, Nasrul; Nashrullah, Muhammad Dimyati; Nurdiansyah, Haidzar
Journal of Community Development Vol. 5 No. 1 (2024): August
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/comdev.v5i1.201

Abstract

The increasing demand for energy and the depletion of oil reserves are forcing humans to seek alternative energy sources. Therefore, the need for alternative electrical energy sources arises, namely, by utilizing solar panels. The importance of understanding how solar panels work and their maintenance becomes a determining factor in ensuring the optimal performance of Solar Photovoltaic (PV) Systems. Lack of knowledge and awareness about maintenance can result in decreased efficiency and lifespan of solar panels. Users of Solar Photovoltaic (PV) Systems are also expected to understand its maintenance procedures. Thus, the implementation of this community service activity aims to educate the public and enable them to maintain Solar Cells as Solar Photovoltaic (PV) Systems. This activity is carried out by providing direct training on PV system maintenance, both theoretically and practically. The impact of this community service activity is that the community can understand and maintain Solar Cells as Solar Photovoltaic (PV) Systems, as evidenced by the evaluation results where the understanding of the training participants falls into the category of very knowledgeable, which is 80.88%.
The Effect of Nozzle Temperature, Infill Geometry, Layer Height and Fan Speed on Roughness Surface in PETG Filament Taqdissillah, Doohan; Muttaqin, Aris Zainul; Darsin, Mahros; Dwilaksana, Dedi; Ilminnafik, Nasrul
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 6, No 2 (2022)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um016v6i22022p074

Abstract

3D printing is a process of making three-dimensional solid objects from a digital file process created by laying down successive layers of material until the object is created. Many filaments can be used in 3D printing, one of which is PETG (PolyEthylene Terephthalate Glycol). PETG is a modification of PET (PolyEthylene Terephthalate) with added glycol at a molecular level to offer different chemical properties that provide significant chemical resistance, durability, and excellent formability for manufacturing. This study aims to find the most optimal parameter of surface roughness of PETG with different parameters of nozzle temperature, infill geometry, layer height and fan speed. Taguchi L16 (44), with four levels for each parameter, was used to determine the effect of each parameter. Each experiment was repeated five times to minimize the occurrence of errors. Based on the result, the effect of each parameter is nozzle temperature at 4.9%, infill geometry at 5.9%, layer height at 82.3%, and fan speed at 4.6%. Layer height has the highest effect on surface roughness, and other parameters have a low effect, under 7%. Research shows that the optimal combination of parameters is a nozzle temperature of 220 °C, infill geometry zig-zag, layer height of 0.12 mm, and a fan speed of 80 %.
Spray Characteristics at Preheating Temperatur of Diesel-Biodiesel-Gasoline Fuel Blend Arifin, Moch Miftahul; Ilminnafik, Nasrul; Kustanto, Muh. Nurkoyim; Triono, Agus
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 5, No 2 (2021)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um016v5i22021p135

Abstract

Technological developments in diesel engines require improvements to the fuel injection system to meet the criteria for economical, high-power and efficient combustion and meet environmental regulatory standards. One method that has a lot of interest is changing the characteristics of the fuel, with the aim of producing optimal combustion. Spray characteristics have a big role in determining the quality of combustion in diesel engines. A good spray can improve the quality of fuel atomization and the homogeneity of the air-fuel mixture in the combustion chamber so that it can produce good engine performance and low emissions. This study aims to determine the effect of a diesel-biodiesel (Calophyllum inophyllum)-gasoline blendandfuel heating on the spray characteristics. The research was conducted with variations in composition (B0, B100, B30, B30G5 and B30G10) and fuel heating (40, 60, 80, and 100 °C). Fuel injected atapressure of 17 MPa in to a pressure chamber of 3 bar. The spray formed was recorded with a high-speed camera of 480 fps (resolution 224x168 pixel). In B100 biodiesel, the highest viscosity and density cause high spray tip penetration, small spray angle, and high spray velocity. The addition of diesel oil, gasoline, and heating fuel reduces the viscosity and density so that the spray tip penetration decreases, the spray angle increases and the velocity of spray decreases.
The Flame Characteristics of Diesel Fuel Blend with Kepuh (Sterculia Foetida) Biodiesel Prasetiyo, Dani Hari Tunggal; Ilminnafik, Nasrul; Junus, Sallahudin
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 3, No 2 (2019)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (542.467 KB) | DOI: 10.17977/um016v3i22019p070

Abstract

Kepuh biodiesel fuel (sterculia foetida) is an alternative fuel that can be used to replace fossil fuel. Diesel fuel is performed to determine the laminar flame speed of combustion and high flame by adding biodiesel kepuh volume of 10%, 20%, 30%. The purpose of this study was to study the effect of biodiesel and the effect of bunsen burners on the laminar flame speed of combustion and flame height. Bunsen burner is made of copper and stainless steel. Testing of flame characteristics were carried out by heating the mixture of fuel and air at temperature of 200oC. The purpose of heating the air is to prevent cooling when mixed with fuel. The mixture of fuel and air flowed into the mixing chamber and bunsen burner. The mixture of fuel and water flows into the mixing chamber and bunsen burner to form a fire. Flame images were recorded using a high speed fuji film camera with a speed of 480 fps with a resolution of 224x168. The test results were analyzed by measuring the angle and height of the flame using the freeware imageJ program. The results of the B10 (diesel oil without the addition of biodiesel) fuel mixture test using copper bunsen burner produced a maximum laminar flame speed of 23.6264 cm / s at φ = 0.8. The highest value of the B30 fuel mix flame (30% full biodiesel + 70% diesel oil) produces a maximum flame value using a stainless steel bunsen burner with a value of 25,417 mm at φ = 1.2. The results showed that B10 in copper bunsen burner had the highest laminar burn rate. The composition of the fuel and bunsen burner affects the combustion characteristics and flame height.
The Combustion Characteristics of Calophyllum inophyllum Fuel in the Presence of Magnetic Field Sugara, Imam Rudi; Ilminnafik, Nasrul; Junus, Salahuddin; Kustanto, Muh Nurkoyim; Hermawan, Yuni
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 7, No 1 (2023)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um016v7i12023p028

Abstract

The study objective is to investigate the combustion characteristics of Callophyllum inophyllum fuel in presence of a magnetic fields. To conduct the experiment, a bunsen burner was utilized, with fuel and air being dispensed via a syringe pump and compressor, both regulated by a flowmeter. The fuel and air pipes were heated to 532.15 (K) to facilitate fuel evaporation. The equivalent ratio of 0.5, 1, and 1.5 was adjusted to control air discharge and fuel. An 11,000 gausses artificial magnet was used, with N-S, N-S, N-N, and S-S being the various magnetic pole configurations. The study found that the magnetic field can enhance combustion quality by affecting the molecules involved in the combustion process. The magnetic field's force also intensifies the movement of O2, making it more energetic. As O2 travels from the North Pole to the South Pole through the combustion reaction zone, it quickens the oxidation-reduction process and curtails diffusion combustion. The red color's intensity diminishes with the magnetic field's effect, indicating this phenomenon. When a magnetic field is applied, the polarity of C.inophyllum biodiesel fuel becomes highly favorable. The triglyceride carbon chain bonds become unstable, and the van der Walls dispersion forces are weakened, which facilitates easier O2 binding to the fuel, resulting in more efficient combustion. An increase in the laminar burning velocity value can be noticed when exposed to a magnetic field.
Analysis of Avgas Fuel Spraying Schemes Using the ANSYS Application Approach Putra, Dimas Endrawan; Ilminnafik, Nasrul; Hentihu, M Fahrur Rozy; Kustanto, Muh. Nurkoyim; Yudistiro, Danang; Syuhri, Skriptyan N.H.
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 8, No 1 (2024)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um016v8i12024p071

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Avgas fuel consumption on Cessna trainer aircraft is very high. However, there has been little research regarding spray impacts in Cessna aircraft engines. The phenomenon of avgas spray colliding with the cylinder wall may occur during fuel injection, resulting in a changed spray radius and height, which will affect the mixing of fuel and air. In several aspects, this affects engine performance and exhaust emissions on Cessna aircraft. This research aims to determine and study the phenomenon of spray impact on avgas-fueled aircraft engines. The fuel spray in the study occurred in the combustion chamber using pressure from a fuel hand pump whose pressure was supplied from a compressor with a pressure adjusted to the original pressure on the aircraft, namely 2 Bar (30 Psi). The experiments in this research used a high-speed camera system to study the phenomenon of avgas spray on walls to get better spray distribution. The results of this research were processed using the CFD application. The result of this research is that the greater the pressure, the more concentrated the resulting jet will be on the jet wall so that the atomization of the fuel jet will be dispersed. When the burst occurs, a change of 3.80e+00 occurs compared to other burst pressures.
Kecepatan Pembakaran Laminar dan Tinggi Api Premix pada Campuran Pertamax-Avgas dengan Etanol Nur Cahyo Hidayat Nasrullah, Muhammad; Nurkoyim Kustanto, Muh; Darsin, Mahros; Ilminnafik, Nasrul; Noor Hidayatullah Syuhri, Skriptyan
National Multidisciplinary Sciences Vol. 3 No. 1 (2024): PROCEEDING SEMAKIN E.1
Publisher : Universitas Muhammadiyah Jember

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

Abstract

Bahan bakar penerbangan yang umum digunakan untuk pesawat dengan tipe mesin reciprocating adalah avgas 100 LL. Keandalan penggunaan bahan bakar ini masih belum tergantikan, khususnya di daerah Indonesia. Pada umumnya avgas menggunakan zat aditif berbahaya berupa tetraethyl lead atau timbal untuk meningkatkan performa bahan bakar ini. Meskipun dapat meningkatkan performa, zat aditif ini terkenal menjadi cancer agent hingga penyebab penurunan IQ akademik pada anak-anak. Beberapa penelitian untuk mengurangi penggunaan timbal pada bahan bakar penerbangan sudah beberapa kali dibahas oleh para peneliti, salah satunya dengan mencampurkan avgas dengan bahan bakar konvensional tanpa timbal. Namun jarang yang membahas mengenai kecepatan pembakaran laminar (SL) pada topik tersebut. Artikel ini bertujuan untuk mengetahui dampak pencampuran bahan bakar avgas dengan pertamax serta penambahan etanol, serta variasi nosel burner terhadap kecepatan pembakaran laminar (SL) dan tinggi api premix yang dihasilkan pada rasio ekuivalen 0,8; 1,0; dan 1,2. Metode bunsen burner dipilih sebagai alat pengujian, karena dinilai simpel dan memiliki hasil yang cukup akurat. Dari pengujian yang dilakukan etanol memiliki nilai S­L tertinggi. Campuran avgas dan pertamax memiliki kecepatan pembakaran yang lebih rendah dibanding avgas 100 LL murni, namun lebih tinggi dari pada pertamax murni. Sebaliknya hasil tinggi api berbanding terbalik. Namun dapat diketahui bahwa penambahan volume 30% etanol pada campuran terbukti meningkatkan kecepatan pembakaran yang dihasilkan. Selain data dari variasi bahan bakar, pengujian juga dilakukan dengan variasi diameter nosel. Dapat diketahui bahwa diameter nosel mempengaruhi nilai SL.
Optimalisasi Kinerja Motor Bakar Empat Langkah Berbahan Bakar Bensin dan Penambahan Water Elektrolisis dengan Katalis KOH Aliyansyah, Berly; Ilminnafik, Nasrul; Syuhri, Ahmad
Simetris: Jurnal Teknik Mesin, Elektro dan Ilmu Komputer Vol 15, No 1 (2024): JURNAL SIMETRIS VOLUME 15 NO 1 TAHUN 2024
Publisher : Fakultas Teknik Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24176/simet.v15i1.10609

Abstract

Indonesia adalah negara dengan penduduk terbanyak didunia. Peningkatan jumlah penduduk juga berdampak dengan bertambahnya kendaraan dan polusi udara.tinginya polusi udara karena kurang sempurnanya pembakaran pada ruang bakar, penambahan elektrolisis air dapat menurunkan emisi gas buang serta dapat menambah kinerja pada motor bakar. Untuk menambah produksi elektrolisis pada penelitian kali ini membandingkan pada kondisi standar dan konsentrasi KOH 3%,6%, 9%. Hasil dari penelitian kali ini mendapatkan kenaikan torsi 2.8% dari standar pada konsentrasi 9%, daya naik 2,2% pada konsentrasi 9%, konsumsi bahan bakar spesifik turun 28.64 % dan emisi gas buang kadar HC turun 94.66 % serta kadar CO turun 97.37%
PENINGKATAN KUALITAS PAKAN DAN MANAJEMEN RECORDING BAGI KELOMPOK PETERNAK DOMBA DI JEMBER Nasrul Ilminnafik; Muhammad Trifiananto; Nur Widodo; Muhammad Dimyati Nashrullah; Intan Hardiatama
JMM (Jurnal Masyarakat Mandiri) Vol 8, No 2 (2024): April
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v8i2.22092

Abstract

Abstrak: Jumlah domba di Kabupaten Jember pada tahun 2020 sebanyak 83.029 ekor. Mitra kami “Lereng Mujan” berlokasi di Desa Klungkung, Jember. Anggota mitra 26 orang dengan jumlah ternak 456 domba dan setiap peternak memiliki 7-35 ekor. Berdasarkan diskusi, mitra memiliki tiga permasalahan yaitu permasalahan teknologi pengolahan pakan hijauan, teknologi bank pakan, dan recording. Domba mitra diberikan pakan hijauan langsung tanpa pencacahan sehingga ternak kesulitan mencerna dan banyak sisa makanan. Pada musim kemarau pakan domba berkurang sehingga gizi domba tidak dapat dipenuhi. Belum diterapkannya recording ternak sehingga kerap terjadi inbreeding dan jumlah ternak tidak terpantau. Mitra diberikan pelatihan berupa skill penggunaan mesin cacah, pembuatan silase, dan recording domba melalui necktag. Setelah pelaksanaan pengabdian prosentase pemahaman pengoperasaian mesin cacah sebesar, pembuatan silase, pemahaman recording ternak, dan tingkat ketrampilan perawatan peralatan berturut-turut sebesar 89%; 81%; 78%; 75%. mitra mampu menghasilkan pakan dengan mesin cacah multifungsi berkapasitas 585 kg/jam. Dari penerapan teknologi silase dan recording didapatkan terjadi peningkatan pakan yang dicacah menjadi 3 sak per hari meningkat 300% . Kemudian 461 domba telah diberikan necktag . Produksi pakan silase sebanyak 65 sak.Abstract: The number of sheep in Jember Regency in 2020 was 83,029. Our partner "Lereng Mujan" is located in Klungkung Village, Jember. There are 26 members with 456 sheep and each farmer has 7-35 sheep. Based on the discussion, the partner has three problems: forage feed processing technology, feed bank technology, and recording. Partner sheep are given forage feed directly without chopping so that livestock have difficulty digesting and a lot of food waste. In the dry season, sheep feed is reduced so that sheep nutrition cannot be fulfilled. Livestock recording has not been implemented so inbreeding often occurs and the number of livestock is not monitored. Partners are given training in the form of skills in the use of chopping machines, making silage, and recording sheep through necktags. After the implementation of the service, the percentage of understanding of the operation of the chopping machine, making silage, understanding livestock recording, and the level of equipment maintenance skills was 89%; 81%; 78%; 75% respectively. Partners are able to produce feed with a multifunctional chopping machine with a capacity of 585 kg / hour. From the application of silage and recording technology, it was found that there was an increase in chopped feed to 3 bags per day, or increase 300%. Then 461 sheep have been given necktags. Silage feed production was 65 sacks.
TINJAUAN INTENSITAS RADIASI MATAHARI: IMPLIKASI POTENSIAL UNTUK PENGEMBANGAN ENERGI SURYA Ilminnafik, Nasrul
MEKANIKA : Jurnal Teknik Mesin Vol 10 No 2 (2024): December
Publisher : Program Studi Teknik Mesin, Universitas 17 Agustus 1945 Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30996/jm.v10i2.10791

Abstract

Radiasi matahari merupakan faktor kunci dalam sistem iklim karena mempengaruhi semua fenomena cuaca dan iklim melalui variasi distribusi sinar matahari. Dampak matahari tidak hanya berdampak pada iklim dan cuaca, tetapi juga mempengaruhi sektor-sektor seperti pertanian, sumber daya air, dan energi. Jakarta, yang terletak di wilayah khatulistiwa, mendapat manfaat dari sinar matahari yang melimpah sepanjang bulan, sehingga sangat cocok untuk memanfaatkan energi matahari. Namun, penting untuk memantau intensitas radiasi matahari untuk mengetahui sejauh mana potensinya. Penelitian menggunakan kuantitatif dengan pendekatan pengamatan intensitas radiasi matahari di Jakarta selama 4 bulan. Lokasi Pengamatan akan dilakukan di stasiun pengamatan intensitas radiasi matahari di GI Kemayoran, kawasan Sunter Agung, Jakarta Utara atau di tempat (AESI) Asosiasi Energi Surya. Berdasarkan penelitian yang dilakukan, dapat disimpulkan bahwa pada bulan Juli hingga Oktober terdapat tingkat intensitas radiasi matahari yang tinggi rerata secara berurutan yakni 334,29 W/m2, 374,13 W/m2, 414,33 W/m2, 402,16 W/m2. Oleh karena itu, pemanfaatan energi surya dalam sangat cocok bagi masyarakat Jakarta untuk meningkatkan kesadaran dan transisi menuju energi terbarukan.
Co-Authors Achmad Aminudin Achmad Rifqi In'Amullah Adhe Reza Firmansyah Adhika Widyaparaga Agus Triono Ahmad Adib Rosadi Ahmad Adib Rosyadi Ahmad Iqbal Fawaid Ahmad Syuhri Ahmad Zainuri Alfariz, Mohammad Rifqy Alfian Futuhul Hadi Alfons Erick Perkasa Alfons Erick Perkasa, Alfons Erick Alief Muhammad Aliyansyah, Berly Amirul Yahya Andi Sanata Andi Sanata Apip Amrullah Arifin, Moch Miftahul Aris Zainul Muttaqin As’adi GA, As’adi Asyhar, Muhammad Maulana As’adi GA Atlanta Iwananda Audiananti Meganandi Kartini Cahya Alief Prasetyo Cahyani, Elisna Tirta Danang Yudistiro Danang, Yudistiro Dani Hari Tunggal Prasetiyo Dedi Dwilaksana Deny Tomy Andrianto Deny tomy andrianto Digdo Listyadi, Digdo Dimas Endrawan, Putra Djoko Wahyudi Dony Perdana Dwi Djumhariyanto Faiz Firdausi Fiqih Muhammad Firdausah, Risco Eka Firdiansyah, Alfian Freitas, Domingos de Sousa Frenico A.O. Fx. Kristianta Gaguk Jatisukamto GAMMA ADITYA RAHARDI Haidzar Nurdiansyah Halimatus Sa'diyah Halimatus Sa’diyah Hari Arbiantara Hari Arbiantara Basuki Hari Tunggal Prasetiyo, Dani Hary Sutjahjono Hendry Y. Nanlohy Ibnu, Muhammad Khadafi Imam Rudi Sugara Imam Sholahuddin Indro Pranoto Intan Hardiatama Ivan Bagus Sanjaya Junus, Sallahudin Kristianta, Franciscus Xaverius Kristianta, Fransiscus Xaverius Kurniawan, Eva Kustanto Muh. Nurkoyim Kustanto, Muh. Nurkoyim Luh Putu Ratna Sundari Lukman Hakim Lukman Hakim M Fahrur Rozy, Hentihu M Katibi Vanhas M. Agung Fauzi M. Agung Fauzi, M. Agung M. Fahrur Rozy Hentihu M. Fathuddin Noor, M. Fathuddin M. Katibi Vanhas Mahros Darsin Masruri Wardhana Meganandi Kartini, Audiananti Misto Misto Moch. Rizal A. Y. Moch. Rizal A. Y., Moch. Mochamad Asrofi Mochamad Edoward Ramadhan Moh. Nurkoyim Moh. Nurkoyim Kustanto Mubiyn, Shidqi Nur Muh Nurkoyim Kustanto Muh Nurkoyim Kustanto Muh. Nurkoyim Kustanto Muh. Nurkoyim, Kustanto Muhammad Dimyati Nashrullah Muhammad Lutfi Azis Muhammad Trifiananto Nasrullah, Muhammad Nur Cahyo Hidayat Nofal Kharis Nofal Kharis Kharis Nugraha, Raafi Aditya Nur Cahyo Hidayat Nasrullah, Muhammad Nur Widodo Nurkoyim Kustanto, Muh Puji Kristianto Putra Dimas Endrawan Putra, Dimas Endrawan Qoyinul Amin Reynaldi Akbar Ali Rika Dwi Hidayatul Qoryah Rima Zidni Karimatan Nisa Rizal Mahmud Rizal Mahmud Robertoes Koekoeh K.W. Salahuddin Junus Santoso Mulyadi Setyo Pambudi Setyo Pambudi Solahuddin, Imam Sumarji Syahriza, Mochamad Rifki Syuhri, Skriptyan N.H. Syuhri, Skriptyan Noor Hidayatullah Tanu Alifuddin D. S Taqdissillah, Doohan Wibowo, Robertoes Koekoeh Koentjoro Widyaningrum Febriolita wigo ardi winarko Wisnu Kuncoro yudan priyo anggono Yuni Hermawan