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All Journal R.E.M (Rekyasa Energi Manufaktur) Jurnal Journal of Mechanical Engineering Science and Technology JMM (Jurnal Masyarakat Mandiri) STATOR: Jurnal Ilmiah Mahasiswa Teknik Mesin PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Journal of Community Development Mechanical Engineering for Society and Industry
Muhammad Dimyati Nashrullah
Jurusan Teknik Mesin, Universitas Jember
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Nursing Public Health Social Sciences Transportation Other

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Pengaruh Panjang Api Dan Sudut Injeksi Terhadap Produktivitas Mesin DC Thermal Plasma Dalam Pembuatan Nano Partikel Alumina Indra Surya Iwanata; Gaguk Jatisukamto; Muhammad Dimyati Nashrullah; Mahros Darsin; Ahmad Syuhri
STATOR: Jurnal Ilmiah Teknik Mesin Vol 5 No 2 (2022): JURNAL STATOR
Publisher : Jurusan Teknik Mesin

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

Abstract

Nanoparticles are particles that have a size of nm and a size range of 1-100 nano. These particles are formed by the DC Thermal Plasma method. This study utilizes a 70 ampere DC Plasma cutting machine as a plasma flame. The combustion process is carried out in a reactor tube, and the material processed is Aluminum powder (Al) with a purity of 92.5%. The input mass of Aluminum powder is injected at 5gram. Burning process (15 seconds). The particles attached to the reactor wall are sucked in with the help of a vacuum pump then collected on the filter tube. The material is measured by mass using a digital scale. Analysis of the data used is using the Taguci L27 method. The parameters used in this study are injection angle with 3 variations (45 °, 60 °, 90 °) and fire length with 3 variations (2.31 cm; 3.87 cm; 4.28 cm). The contribution of machining parameters in the manufacture of alumina nanoparticles is significant, namely the injection angle parameter has a contribution of 37% and a fire length parameter of 4.2%. The results of the study are generally influenced by the injection angle. The optimum injection angle is 45 ° with an average of 3.56 grams and the least productivity is the injection angle parameter 90 ° which is equal to 2.17 grams The conclusion of the study is that the greater the material injection bend angle the less productivity of DC Thermal Plasma devices as well vice versa.
Power Enhancement of Monocrystalline Solar Panel with Passive Cooling Trifiananto, Muhammad; Hardiatama, Intan; Zainul Muttaqin, Aris; Edoward Ramadhan, Mochamad; Jatisukamto, Gaguk; Dimyati Nashrullah, Muhammad; Al Wafi, Adib
R.E.M. (Rekayasa Energi Manufaktur) Jurnal Vol 9 No 1 (2024): June
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/r.e.m.v9i1.1688

Abstract

The need for energy every year both in the domestic and global increases. Indonesia's energy needs are predicted to increase by 5% each year. Indonesia has renewable energy potential from solar, hydropower, wind, and geothermal sources. The potential of new renewable energy amounted to 442 GW. Of the 442 GW, the greatest potential is owned by 207 GW of solar energy. The high potential of solar energy in Indonesia is because Indonesia is located in the tropics which experiences sunshine time of approximately 6-8 hours per day and the sun continues to shine throughout the year. However, the length of irradiation also has an impact on increasing the temperature of solar panels. The higher the temperature of the solar panel, the output power will decrease and the life of the solar panel is reduced. The use of passive cooling from reference has a lower efficiency increase than active cooling. However, its installation requires lower costs, minimal maintenance, and no additional power requirements. This research will use 20WP monocrystalline solar panels with three cooling variations, namely: 1) with the addition of a thin aluminum plate and Vortex generator 2) By giving a tub of water under the panel 3) the Addition of aluminum fin. The three variations are compared with solar panels without cooling. The results on the first day showed a decrease in temperature of 2.30C with aluminum fin and an increase in power of 6.97% when using a water container. On the second day, a temperature decrease of 2.90C and a power increase of 5.81% when using aluminum fin coolers were recorded.
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%.
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.
Characteristics of syngas combustion resulting from coffee husk biomass waste gasification process: Overview of automotive fuel alternatives Sanata, Andi; Sholahuddin, Imam; Nashrullah, Muhammad Dimyati; Nanlohy, Hendry Y.; Panithasan, Mebin Samuel
Mechanical Engineering for Society and Industry Vol 4 No 2 (2024)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/mesi.12590

Abstract

The production of syngas from coffee husk biomass waste as a raw material offers significant potential as an alternative automotive fuel source through the gasification process, considering the abundant resources available. Therefore, this study aimed to characterize the physical properties of the fuel initially, in order to observe the differences in these properties after the fuel underwent Ultra Fine Bubble treatment. The objective was to analyze the combustion characteristics of syngas derived from coffee husk biomass waste, to develop a sustainable alternative to fossil fuels for automotive applications. The results showed that with increasing air discharge, the concentration of CO and H₂ gases in gasified syngas increased while the concentration of CH4 decreased. Additionally, higher air discharge resulted in lower tar content, higher flame temperature, higher flame height visualization, and higher generator power output as a review of the feasibility of alternative automotive fuels.
Comprehensive analysis of tar reduction method in biomass gasification for clean energy production: A Review Prasetiyo, Dani Hari Tunggal; Sanata, Andi; Sholahuddin, Imam; Nashrullah, Muhammad Dimyati; Nanlohy, Hendry Y.; Panithasan, Mebin Samuel
Mechanical Engineering for Society and Industry Vol 4 No 3 (2024): Special Issue on Technology Update 2024
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/mesi.12712

Abstract

Biomass gasification is a promising renewable energy technology for the production of synthetic gas (syngas), consisting of hydrogen (H₂), carbon monoxide (CO), and methane (CH₄). This technology's primary challenge is tar formation – a heavy hydrocarbon compound that can block equipment, poison catalysts, and deteriorate syngas quality. Therefore, this study aimed to examine different tar reduction methods to support clean energy production through biomass gasification. To achieve this aim, two main approaches were adopted and the first was in-situ, focusing on modifying gasifier design and adjusting operational parameters. The second was ex-situ, which included catalytic reforming, thermal cracking, and plasma technology. The analysis also assessed different catalysts, such as biochar, and dolomite, as well as nickel- and iron-based materials, comparing their efficiency, sustainability, and economic viability. Several key factors influenced tar formation and reduction, namely feedstock type, operating temperature, air ratio, and reactor configuration. The result showed that combining in-situ and ex-situ technologies had substantial potential to significantly reduce tar, improve syngas quality, and optimize system performance. However, some challenges observed were reduced catalyst efficiency, high energy costs, and the need for more sustainable technologies. To improve the performance of gasification systems, this study provided information on catalyst development, operational parameter optimization, and plasma technology integration. Finally, the analysis provided a scientific basis and strategic recommendations to overcome tar problems and encourage the commercial use of biomass gasification towards a clean energy transition.
PENERAPAN POMPA TENAGA SURYA DAN TEKNOLOGI PEMANTAUAN KUALITAS TANAH BERBASIS IOT BAGI PETANI DURIAN Muhammad Dimyati Nashrullah; Muhammad Trifiananto; Danang Yudistiro; Muh. Asnoer Laagu; Dedi Dwilaksana; Bahrul Ulum; Rafli Bima Ardiansyah; M. Firmansyah Putra Pradana; Faiqal Malik
JMM (Jurnal Masyarakat Mandiri) Vol 9, No 1 (2025): Februari
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v9i1.28501

Abstract

Abstrak: Kabupaten Jember merupakan salah satu daerah penghasil durian terbanyak di Jawa Timur. Naik turunnya produksi durian diantaranya dipengaruhi oleh ketercukupan air dan kadar keasaman tanah di perkebunan durian. Rumah Durian Jember, merupakan mitra pengabdian yang bergerak dalam bidang pertanian dan penjualan durian premium dengan jumlah karyawan sebanyak 11 orang. Tujuan pengabdian ini adalah mengatasi permasalahan pengairan perkebunan mitra dengan cara penerapan pompa tenaga surya dan alat pemantau kualitas tanah berbasis IoT. Pengabdian ini juga bertujuan meningkatkan kemampuan mitra dalam pengoperasian dan perawatan peralatan melalui pelatihan. Dilakukan pula pelatihan SEO media sosial dan pembuatan website untuk peningkatan branding Rumah Durian Jember. Evaluasi pelaksanaan pengabdian dilakukan dengan cara pemberian kuisioner yang memuat sembilan pertanyaan. Hasil kuisioner evaluasi menunjukkan seluruh anggota mitra merasakan manfaat dan peningkatan kemampuan dari pemberian dan pelatihan pompa tenaga surya dan alat pemantau kualitas tanah berbasis IoT. Selain itu, 91,67% anggota mitra merasakan manfaat dan peningkatan kemampuan dari pelatihan SEO media sosial. Hasil evaluasi juga menunjukkan sebanyak 91,67% anggota mitra setuju untuk dilakukan pendampingan lanjutan.Abstract: Jember Regency is one of the largest durian-producing regions in East Java. The fluctuation in durian production is influenced, among other factors, by the adequacy of water supply and the soil acidity levels in durian plantations. Rumah Durian Jember is a community service partner engaged in agriculture and premium durian sales with 11 employees. This study aims to address the irrigation issues faced by the partner’s plantation by implementing, training on the operation, and providing maintenance training for solar-powered pump equipment and IoT-based soil quality monitoring tools. Additionally, social media SEO training and website development were conducted to improve Rumah Durian Jember's branding. The evaluation of the service implementation was carried out through a questionnaire containing nine questions. The results of the evaluation questionnaire showed that all members of the partner organization benefited from and improved their skills through the provision and training on solar-powered pumps and IoT-based soil quality monitoring devices. Moreover, 91,67% of the members benefited from the social media SEO training. The evaluation also revealed that 91,67% of the members agreed to continue receiving further assistance.
Analisis Performa Mesin Pengayak Pasir Zeolit Jenis Rotary Dengan Variasi Sudut Kemiringan & Variasi Kecepatan Putaran Wildan, Muhammad; Hermawan, Yuni; Nashrullah, Muhammad Dimyati; Syuhri, Ahmad; Sidartawan, Robertus; Kristianta, FX
STATOR: Jurnal Ilmiah Teknik Mesin Vol. 8 No. 1 (2025): JURNAL STATOR
Publisher : Jurusan Teknik Mesin

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Abstract

Pengayakan merupakan proses pengelompokan suatu butiran yang akan dipisahkan menjadisatu atau beberapa kelompok. Salah satu jenis pasir yang membutuhkan sebuah prosespengayakan ialah pasir zeolit. Mesin pengayak pasir dibagi beberapa type salah satunya yaitutype rotary atau berputar. Dalam penelitian ini, akan menciptakan performa terbaik mesinpengayak pasir zeolit type rotary dengan menentukan parameter variasi sudut kemiringan dankecepatan putaran yang tepat pada tabung pengayak. Variasi yang telah ditentukan akanberpengaruh terhadap lama waktu proses pengayakan dan hasil pengayakan pasir zeolit. MetodeTaguchi digunakan untuk mengoptimalkan variasi yang digunakan berupa matriks orthogonalL9 (32). Berdasarkan hasil penelitian ini sudut kemiringan dan kecepatan putaran berpengaruhsignifikan terhadap lama waktu proses pengayakan dan hasil pengayakan pasir zeolit dengannilai persen kontribusi sebesar 17,72% dan 45,18% terhadap lama waktu pengayakaan,sedangkan untuk hasil pengayakan dengan nilai kontribusi 39,33% dan 33,45%. Maka prosespengayakan pasir terbanyak didapat pada variasi sudut 10° dan 28 rpm menghasilkan hasilsaringan pasir halus zeolit 6,70 kg dengan waktu 256,6 sec dan hasil lama waktu pengayakantercepat didapat pada variasi sudut 20° dan 61 rpm menghasilkan waktu pengayakan 198,3 secdengan hasil berat pasir halus 2,67 kg. Sehingga hasil penelitian ini bisa sebagai alternatifpemilihan variasi parameter pada proses pengayakan pasir zeolit menggunakan mesin pengayaktype rotary.Kata Kunci: mesin pengayak, rotary, pasir zeolit, sudut, kecepatan
Boiling Heat Transfer Coefficient and Critical Heat Flux on Conical Cylindrical Copper under Surface Modification Nashrullah, Muhammad Dimyati; Sanata, Andi; Solahuddin, Imam; Ilminnafik, Nasrul; Pranoto, Indro; Widyaparaga, Adhika
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 9, No 1 (2025)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um016v9i12025p126

Abstract

This study examined how surface roughness and nanoceramic coating, influences the boiling heat transfer coefficient (BHTC) and critical heat flux (CHF) of a conical cylindrical copper test specimen. Three test specimens exhibiting surface roughness of 0.22 µm, 0.14 µm, and 0.04 µm were analyzed for comparison. Two additional test specimens were treated with nanoceramic coatings utilizing silicon carbide as the base material: one specimen received a single-layer coating and the second was applied with a double-layer coating. The behavior of the bubbles was closely observed with a high-speed camera to deepen the analysis. The experimental results showed that the test specimen with higher surface roughness exhibited higher BHTC and CHF. The 0.22 µm surface roughness specimen demonstrated a 55.69% greater BHTC than the 0.04 µm surface roughness specimen. In contrast, the 0.04 µm surface roughness specimen had the lowest CHF, 426.09 kW/m². Nanoceramic coating also enhanced the BHTC and CHF. The specimen with a single-layer coating had the highest BHTC, 40.81% higher than the uncoated specimen. The specimen with a double-layer coating showed a 60.12% increase in CHF compared to the specimen with a single-layer coating. The bubble observation results indicated that test specimens with higher BHTC and CHF had more active nucleation sites. The quantity of active nucleation sites plays a vital role in producing a large number of bubbles, enhancing heat transfer, and maintaining the surface temperature.
Sosialisasi dan Pelatihan Pemanfaatan Limbah Kulit Kopi sebagai Sumber Energi Alternatif bagi Gabungan Kelompok Tani di Kecamatan Silo, Kabupaten Jember: Socialization and Training on Utilizing Coffee Husk Waste as an Alternative Energy Source for Farmer Groups in Silo Subdistrict, Jember District Nashrullah, Muhammad Dimyati; Sanata, Andi; Sholahuddin, Imam; Sugara, Imam Rudi; Prasetyo, Dani Hari Tunggal
PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Vol. 10 No. 8 (2025): PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat
Publisher : Institute for Research and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/pengabdianmu.v10i8.9097

Abstract

The Silo subdistrict is one of the coffee-producing villages, with a production amounting to more than 40% of the total coffee production in Jember Regency. The coffee processing produces coffee husk waste, which is often discarded into the environment and potentially causes pollution. Coffee husk waste has a high calorific value and is suitable for use as biomass fuel to produce syngas through gasification methods. The partner for this community service is GAPOKTAN Suka Maju, located in Pace Village, Silo Subdistrict, Jember Regency. GAPOKTAN Suka Maju is led by Mr. Zainal Arifin, who has 30 members. This community service aims to provide knowledge to GAPOKTAN Suka Maju members about the environmental impact of coffee husk waste disposal and the utilization of coffee husk waste as an energy source through gasification methods. The community service method consists of pre-activities, activity implementation, and evaluation. The pre-activities include designing the gasification equipment, making the gasification equipment, and drying the coffee husk waste. The implementation consists of socializing the environmental impact of coffee husk waste disposal, the energy potential of coffee husk waste, and training in gasification equipment. The results show a significant increase in the participants' understanding of the environmental impact of coffee husk waste disposal, the energy potential of coffee husk waste, and the gasification method and equipment to convert coffee husk waste into fuel.
Co-Authors Adhika Widyaparaga Ahmad Syuhri Al Wafi, Adib Andi Sanata Aris Zainul Muttaqin Bahrul Ulum Danang Yudistiro Dani Hari Tunggal Prasetiyo Dedi Dwilaksana Edoward Ramadhan, Mochamad Faiqal Malik Gaguk Jatisukamto Haidzar Nurdiansyah Hendry Y. Nanlohy Imam Rudi Sugara Imam Sholahuddin Indra Surya Iwanata Indro Pranoto Intan Hardiatama Kristianta, FX Kustanto, Muh. Nurkoyim M. Firmansyah Putra Pradana Mahros Darsin Muh. Asnoer Laagu Muhammad Trifiananto Muhammad Wildan Nasrul Ilminnafik Nur Widodo Panithasan, Mebin Samuel Rafli Bima Ardiansyah Robertus Sidartawan Solahuddin, Imam Yuni Hermawan