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All Journal Sinergi Jurnal Rekayasa Material, Manufaktur & Energi Jurnal Ilmiah Teknik Mesin "MEKANIK" Jurnal Anugerah: Jurnal Pengabdian Kepada Masyarakat Bidang Keguruan dan Ilmu Pendidikan IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) IRA Jurnal Pengabdian Kepada Masyarakat
Supriatno, Supriatno
Universitas Medan Area
Aerospace Engineering Automotive Engineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Social Sciences Other

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RANCANG BANGUN DAN PENGUJIAN TURBIN PELTON BERSKALA LABORATORIUM DENGAN MODEL VARIASI SUDUT BUCKET Tamba, Octo Goldwin; Supriatno, Supriatno; Eswanto, Eswanto
MEKANIK: Jurnal Ilmiah Teknik Mesin Vol 7 No 1 (2021): Mei 2021
Publisher : Jurusan Teknik Mesin, Fakultas Teknologi Industri, Institut Teknologi Medan (ITM)

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Abstract

Turbin pelton banyak digunakan untuk pembangkit listrik skala mikro. Penelitian ini dilakukan dengan variasi sudut bucket turbin Pelton. Penelitian ini bertujuan untuk mempelajari unjuk kerja turbin Pelton dengan variasi sudut bucket 55°, 60°, dan 65°. Untuk mengetahui daya, putaran, dan efisiensi.Sudu dari bahan stainless yang digunakan untuk turbin pelton.Peralatan yang digunakan adalah sebuah turbin Pelton. Sudu turbin dibuat dari bahan stainless sudut bucket 55° dengan lebar sudu 90 mm, dan tinggi 20 mm. Sudut bucket 60° dengan lebar sudu 85 mm dan tinggi 15 mm. Dan sudut bucket 65° dengan lebar 80 mm dan tinggi 10 mm. Diameter runner adalah 250 mm dengan jumlah sudu pada runner 12 buah. Untuk menghasilkan listrik, turbin dihubungkan dengan generator. Pengukuran daya yang dihasilkan turbin dilakukan dengan mengukur tegangan dan arus yang dihasilkan generator. Putaran turbin diukur dengan tachometer.Turbin pelton dengan variasi sudut bucket dari bahan stainless dan jumlah sudu 12, variasi sudut bucket 55° mampu menghasilkan daya sebesar 14,7 watt dan efisiensi sebesar 20,84 %. Sudut bucket 60° mampu menghasilkan daya sebesar 14,84 watt dan efisiensi sebesar 21,04 %. Dan sudut bucket 65° mampu menghasilkan daya sebesar 16,35 watt dan efisiensi sebesar 23,18 %. Berdasarkan simpulan hasil penelitian ini, direkomendasikan : perlu dilakukan penggantian pada generator untuk mengetahui daya yang lebih maksimal yang dihasilkan turbin Pelton. Kata kunci : Turbin Pelton, Variasi sudut bucket, sudut
COMBINATION OF THE ISOCHORIC METHOD AND THE EXPANSION METHOD TO DETERMINE DENSITIES OF HYDROGEN AT TEMPERATURES UP TO 500°C Supriatno Supriatno
SINERGI Vol 22, No 2 (2018)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (13.898 KB) | DOI: 10.22441/sinergi.2018.2.006

Abstract

Utilization of hydrogen as an alternative fuel is promising because it is environmentally friendly. Hydrogen system design requires accurate hydrogen densities. The density of hydrogen is determined based on experimental data. For gases that have a low density such as hydrogen, the effective measurement method is required. An apparatus has been designed to measure PVT properties of hydrogen at pressures up to 1 MPa and temperatures up to 500ºC. The apparatus uses a combination of isochoric and expansion methods. The method doesn’t need a measurement of pressures and temperatures along the isochoric line as required usually in the isochoric conventional method. Moreover, it doesn't need direct measurements of gas mass and gas volume. The volume was determined by measuring nitrogen at a pressure of 0.5 MPa and at temperatures up to 500ºC and by using Span’s equation of state. Measurements of hydrogen have been performed at a pressure up to 0.7 MPa and temperatures up to 498.217ºC. Densities of hydrogen obtained from the present measurement are compared with that obtained from calculation of Leachman's equation of state. Maximum deviation is 1.42% at a temperature of 498.217ºC and at a pressure of 0.2947 MPa and minimum deviation is 0.11% at temperature and pressure of 399.461ºC and 0.6981 MPa respectively.
Desain Insinerator Menggunakan Bahan Bakar Cangkang Kelapa Sawit Ilmi Abdullah; Yoko Nikodemus Manik; Barita Barita; Jufrizal Jufrizal; Supriatno Supriatno; zainuddin zainuddin; Eswanto Eswanto
Rekayasa Material, Manufaktur dan Energi Vol 2, No 1: Maret 2019
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (786.956 KB) | DOI: 10.30596/rmme.v2i1.3067

Abstract

Pada desain incinerator cangkang kelapa sawit sebagai bahan bakar incinerator sampah pada incinerator secara berterusan menggunakan cangkang kelapa sawit dengan tinggi tungku biomassa 90 cm dan volume tungku biomassa 20 kg, diameter saluran blower 5 cm memvariabelkan kecepatan blower keruang bakar antara dengan kecepatan udara 0,9 m/s, 1,2 m/s, dan 1,9 m/s. Konsumsi bahan bakar antara 18kg/jam. Dari hasil pengujian ini perbedaan kecepatan udara dari  blower keruang pembakaran harus di seimbangkan dengan bahan bakar yang  masuk keruang bakar pembakaran, sehingga dapatlah pembakaran yang sempurna dengan pipa saluran blower 10 cm jadi dapat disimpulkan bahwa menentukan pembakaran yang optimal itu kita harus menyeimbangkan banyaknya bahanbakar yang masuk keruang pembakaran dengan volume 22 kg  sehingga kita bias menentukan udara yang diperlukan dalam pembakaran tersebut. Pada penelitian ini, penulis memilih analisa suatu bahan bakar pada pembakaran cangkang kelapasawit pada incinerator secara berterusan adalah dengan jumlah bahan bakar sebanyak 18 kg/jam dengan kecepatan udara ialah 0,9 m/s, memiliki temperature konstan dari 500°C - 100°C. Hasil pengujian ini telah menunjukkan bahwa terjadinya kenaikan dan penurunan temperature disebabkan oleh variasi udara yang berbeda, dimana semakin besar udara yang dimasukkan dalam ruang bakar dengan bahan bakar yang tetap, maka temperature ruang bakar akan semakin meningkat dan sebaliknya.
Analisis Penggunaan Energi pada Usaha Mikro, Kecil, dan Menengah (UMKM) Supriatno Supriatno
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 1 No 3 (2022): Desember
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v1i3.31

Abstract

Electrical energy is an essential requirement for humans to perform all  kinds of enterprises covering micro, small, medium and large enterprises. Efforts to utilize electrical energy efficiently is a wise action. The aims of the research is to analyze the use of electrical energy in a building that is used for micro enterprise. The research was conducted by collecting primary and secondary data in the observed building. The scope of research data includes the room areas, electrical energy consumption, level of lighting, temperature and humidity. The calculating results  are compared with the standard data in the peraturan mentri energi dan sumber daya mineral no  13 tahun 2012. The results of the research show that only one room of building is in wasteful criteria. The lighting level has a difference between 18% to 79% below the standard. Air humidity in rooms equipped with air conditioning meets the standards, while the room temperatures are still higher than the standard temperature.  
Manufaktur dan Pengujian Burner LPG untuk Pemanasan Heater Mesin Stirling mCHPSE-012021 Hidayat, Muhammad Arif; Al Ridho, Fatur Fadhillah; Jufrizal, Jufrizal; Supriatno, Supriatno; Nurdiana, Nurdiana
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 2 No 3 (2023): Desember
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v2i3.82

Abstract

This research focuses on developing a special LPG burner for the mCHPSE-012021 Stirling engine. The burner design was developed using CAD software and fabricated using machine tools and a welding process. Tests are carried out to verify how much the burner performance meets the desired specifications. The test results show that although the burner can reach the required high temperature, the thermal efficiency is still low, at 19.72%. This figure is far below the efficiency standard for household gas stoves, according to SNI 8660:2018. These findings highlight the urgency of improving burner design and efficiency to meet established standards, improving the mCHPSE-012021 Stirling engine's overall performance, and significantly increasing energy efficiency. These improvements are necessary to ensure optimal performance and efficiency in energy use in mCHPSE systems, underscoring the importance of developing more efficient and standards-compliant burner technology to support the use of Stirling engines in microenergy applications.
Analisis Efisiensi Thermal dan Konsumsi Bahan Bakar pada Burner Kompor SNI Sebagai Dasar Acuan Perencanaan Burner Mesin Stirling Lubis, Rahmadsyah; Jufrizal, Jufrizal; Supriatno, Supriatno; Nurdiana, Nurdiana
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 3 No 2 (2024): Agustus
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v3i2.96

Abstract

This study aims to evaluate the performance of an LPG stove burner by assessing the flame temperature, fuel consumption, burner power, and thermal efficiency. The method employed is an experimental approach using a water boiling technique. The test materials used include 3 kg of LPG gas and water. The equipment utilized includes an SNI-compliant cooking stove, a pot, a digital scale, a rotameter flow meter, a gas regulator and hose, a stopwatch, a UT320D thermometer controller, an NPT stainless steel thermometer, and thermocouple sensor cables. The results show that during the first test with the stove set to the minimum setting, the average flame temperature at the burner reached 559.005 °C, with a maximum value of 589.2 °C. In the second test, with the stove set to the maximum setting, the average flame temperature reached 714.78 °C, with a maximum value of 769.3 °C. Fuel consumption was recorded at 0.391 kg in the first test and 0.545 kg in the second test. The burner power output was 1.754 kW in the first test and 2.225 kW in the second test. The thermal efficiency of the burner was recorded at 50.07% in the first test, increasing to 52.85% in the second test. The measurement and analysis of thermal efficiency and fuel consumption in this study can serve as a crucial guide in designing and developing burners for Stirling engines.
Pelatihan Penggunaan Mesin Sekrap Bagi Mahasiswa di Growth Centre LLDIKTI Wilayah - I Zulfikar, Achmad Jusuf; Supriatno, Supriatno; Candra, Ifan Aulia; Nurdiana, Nurdiana
IRA Jurnal Pengabdian Kepada Masyarakat (IRAJPKM) Vol 1 No 1 (2023): April
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajpkm.v1i1.53

Abstract

Shaping machine training for students significantly benefits developing technical skills, preparing them for the world of work, and increasing their understanding of manufacturing processes and job safety. A shaping machine is a tool to machine metal surfaces using a reciprocating linear motion. This machine uses a blade moving back and forth to remove a thin metal layer from the work surface and create the desired shape. It is essential to adapt the training method to the needs and characteristics of the participants and provide a safe and conducive environment for learning and practising the use of the shaping machine. Evaluation of technical skills, assessment of theoretical knowledge, and review of the work results of the participants. The experience gained during the training will vary for each participant depending on background, level of expertise, and commitment to learning. The results of this training are expected to increase knowledge and understanding of shaping machines. Participants will learn in-depth about the basic principles of shaping machines, their components, and proper operating techniques.
Pengujian Kinerja Cooling Water untuk Mesin Stirling tipe Gamma Skala Kecil Prasetio, Indra; Jufrizal, Jufrizal; Supriatno, Supriatno
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 3 No 3 (2024): Desember
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v3i3.146

Abstract

This study aims to evaluate and analyze the performance of cooling water in a small-scale Gamma-type Stirling engine. The research method employed was an experimental approach. The test results show that the inlet water temperature was 27.6 °C, while the average outlet water temperature reached 92.33 °C after 60 minutes of testing. Cooling water with an inlet temperature of 27.6 °C reduced the average heat source temperature from 484.51 °C to 64.78 °C on the compression chamber side. At an airflow rate of 0.006 m³/s, the average cooling effectiveness was recorded at 13%, with the highest value of 19.1% observed at the 55th minute of testing. This study concludes that cooling water effectively reduces the heat source temperature and improves thermal efficiency in a small-scale Gamma-type Stirling engine.
Implementasi PLTS pada Sistem Pakan Ikan Otomatis untuk Meningkatkan Efisiensi Pengelolaan Peternakan Ikan: Studi Kasus Skala Uji Coba Aldori, Yopan Rahmad; Jufrizal, Jufrizal; Darianto, Darianto; Hermawan, Indra; Supriatno, Supriatno; Darwin, Felix
IRA Jurnal Pengabdian Kepada Masyarakat (IRAJPKM) Vol 2 No 3 (2024): Desember
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajpkm.v2i3.153

Abstract

This Community Service aims to develop and implement solar-powered automatic fish-feeding tools to improve operational efficiency in fish farming. Using 10 WP solar panels is expected to reduce dependence on expensive and unstable conventional electrical energy, especially in areas with limited energy access. The method used in this activity was a direct trial at the Medan City Fish Seed and Cultivation Center, where several vital parameters were measured, such as tilt angle, azimuth angle, zenith angle, and time clock angle. The test results show that this device can operate effectively by utilizing solar energy optimally, especially when the sun's position is at the right angle. The efficiency of solar panels reaches a high level, allowing the battery to be charged in a relatively short time. The conclusion of this activity shows that this tool can help fish farmers automate feeding in a sustainable and environmentally friendly manner while reducing operational costs. This technology has the potential to be applied more widely, providing a positive impact in increasing productivity and saving costs in fish farming businesses.
Pemberdayaan generasi muda dalam transisi energi hijau melalui pelatihan teknologi fuel cell Iswandi, Iswandi; Supriatno, Supriatno; Susilawati, Susilawati; Hermanto, Tino; Hasibuan, Samsul Abdul Rahman Sidik; Muliono, Rizki; Royani, Ida; Aldori, Yopan Rahmad
Jurnal Anugerah Vol 7 No 1 (2025): Jurnal Anugerah: Jurnal Pengabdian kepada Masyarakat Bidang Keguruan dan Ilmu Pen
Publisher : Universitas Maritim Raja Ali Haji

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31629/anugerah.v7i1.7174

Abstract

Krisis energi global dan rendahnya literasi energi bersih di kalangan pelajar mendorong perlunya edukasi teknologi alternatif yang berkelanjutan. Kegiatan pengabdian ini dilatarbelakangi oleh kebutuhan untuk meningkatkan wawasan siswa terhadap teknologi energi terbarukan, khususnya fuel cell. Tujuan kegiatan ini adalah untuk memperkenalkan prinsip dasar kerja teknologi fuel cell serta membangun pemahaman dan keterampilan awal siswa Sekolah Menengah Kejuruan (SMK) sebagai bagian dari edukasi transisi energi hijau. Pengumpulan data dilakukan sebagai langkah evaluatif untuk meninjau keberhasilan kegiatan PkM. Tolok ukur keberhasilan ditentukan berdasarkan peningkatan pemahaman kognitif siswa serta tingkat partisipasi dan respons positif terhadap materi pelatihan. Metode pelaksanaan menggunakan pendekatan pelatihan interaktif, pendidikan masyarakat, dan substitusi ipteks. Peserta kegiatan berjumlah lebih dari 50 siswa jurusan Bisnis dan Manajemen di SMK Swasta Nurul Amaliyah Tanjung Morawa. Teknik pengumpulan data mencakup pre-test dan post-test untuk mengukur peningkatan pemahaman, observasi untuk menilai keterlibatan siswa, serta wawancara semi-terstruktur untuk menggali persepsi dan ketertarikan siswa terhadap teknologi energi bersih. Analisis data dilakukan secara deskriptif kuantitatif dan naratif. Hasil menunjukkan adanya peningkatan skor pemahaman peserta dari 42% menjadi 81%, disertai partisipasi aktif dan ketertarikan tinggi terhadap materi. Peserta juga mampu mengaitkan prinsip kerja fuel cell dengan peluang usaha berbasis energi bersih. Kegiatan ini membuktikan bahwa edukasi ipteks lintas disiplin dapat menjembatani kesenjangan pemahaman teknologi dan membentuk kesadaran technopreneurship. Oleh karena itu, model pelatihan ini berpotensi diterapkan secara lebih luas dalam satuan pendidikan vokasi non-teknik untuk mendukung transisi energi nasional.
Co-Authors Al Ridho, Fatur Fadhillah Barita Barita Candra, Ifan Aulia Darianto, Darianto Darwin, Felix Eswanto Eswanto Eswanto, Eswanto Hasibuan, Samsul Abdul Rahman Sidik Ida Royani Ilmi Abdullah INDRA HERMAWAN Iswandi Iswandi Jufrizal Jufrizal Jufrizal Jufrizal Lubis, Rahmadsyah Muhammad Arif Hidayat Nasution, Kurnia Rizky Nurdiana Nurdiana Prasetio, Indra Rizki Muliono Simatupang, Joel Hasoloan Susilawati, Susilawati Tamba, Octo Goldwin Tino Hermanto Yoko Nikodemus Manik Yopan Rahmad Aldori zainuddin zainuddin zulfikar, Achmad Jusuf