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All Journal ROTOR: JURNAL ILMIAH TEKNIK MESIN JOURNAL OF MECHANICAL ENGINEERING, MANUFACTURES, MATERIALS AND ENERGY Jurnal Vokasi DEVICE IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) JURUTERA (Jurnal Umum Teknik Terapan) Jurnal Masyarakat Berdikari dan Berkarya (MARDIKA)
Widodo, Syamsul Bahri
Universitas Samudra
Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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KAJI EKSPERIMENTAL PENGERING IKAN TIPE LORONG HIBRID DENGAN MENGGUNAKAN ENERGI SURYA – BIOMASSA DARI SEKAM PADI Syamsul Bahri Widodo; Nasruddin Nasruddin; Muhammad Alfi; Fazri Amir
JURUTERA - Jurnal Umum Teknik Terapan Vol 2 No 01 (2015)
Publisher : Fakultas Teknik Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55377/jurutera.v2i01.795

Abstract

Pengeringan merupakan suatu proses yang digunakan untuk mengurangi kadar air suatu bahan dengan cara penguapan. Salah satu produk yang memerlukan proses pengeringan adalah ikan. Tujuan pengeringan ini untuk menghindari dari proses pembusukan pada ikan. Dalam hal ini jenis pengering yang akan diteliti adalah alat pengering tipe lorong dengan sumber panas yang berasal dari energi surya, energi biomassa, penggunaan alat pengering ini agar produk yang dihasilkan lebih cepat kering dan lebih higienis. Alat pengering yang sudah dirancang mempunyai ukuran panjang 240 cm x lebar 80 cm yang didalamnya ada 2 buah rak yang masing-masing dengan ukuran 120 cm x 80 cm. Prinsip kerja dari alat pengering ini ialah proses pengeringan dapat dilakukan pada siang hari dengan memasukkan bahan pengering ke dalam tiap rak dan dapat dilanjutkan untuk proses pengeringan pada malam hari dengan menggunakan biomassa. Produk mengalami proses pengeringan dikarenakan temperatur ruang pengering yang meningkat akibat penyerapan kalor dari radiasi surya dan kalor yang dihasilkan dari tungku biomassa sebagai alat bantu tambahan untuk menghasilkan panas dalam menaikkan temperatur ruang pengering di malam hari. Didalam ruang pengering, udara panas hasil radiasi bertemperatur 40℃-50℃dan udara panas hasil konveksi dan konduksi dari biomassa bertemperatur sama 40℃-50℃. Sifat-sifat termofisik ikan meliputi kapasitas panas jenis ikan (Cpikan) sebesar 3,18 kJ/KgoC, dan massa akhir ikan sebesar 390 gr dengan kadar air ikan basis basah sebesar 58,94 % bb. Dari hasil pengujian alat diketahui energi kalor yang diterima pengering dari biomassa sebesar 837,07 Wh, energi kalor radiasi matahari sebesar 769,49 Wh, dan energi kalor gabungan sebesar 803,28 Wh. Efisiensi sistem pengering yang dihasilkan untuk energi matahari sebesar 5,6 %, energi biomassa sebesar 5 %, dan energi gabungan sebesar 5,32 %.
DESIGN OF THERMAL CONDUCTING EQUIPMENT Iskandar; Parlindungan Lumban Batu; Nazaruddin Abdul Rahman; Syamsul Bahri Widodo
JURUTERA - Jurnal Umum Teknik Terapan Vol 9 No 02 (2022)
Publisher : Fakultas Teknik Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55377/jurutera.v9i02.6833

Abstract

This research presents the design and manufacture of thermal conductivity test equipment using heat transfer techniques (steady state) with the ability to test materials at high temperatures. The design of this test equipment is an extension of the ASTM D5470-06 standard, where the same is used to calculate the surface temperature and heat transfer through the sample during the test, where at each reference rod point, 10 K-type thermocouples are embedded. The maximum heater power required by the reference rod with a heating time of 1 hour is 30.4 KW. This test tool uses 3 pieces of 500-Watt power, and Thermoelectric TEC1-12706 12 Volt 6 Ampere 40x40 mm, Heatsink, 12 Volt DC Fan 0.15Ampere 38x38 mm, to keep the test at a steady state. And the use of Thermal Paste to minimize thermal contact resistance. From the calculations, it can be seen that the faster the time needed to heat the reference rod will require greater heater power, and vice versa. For high temperatures, this tool can reach a test temperature of 100 ℃. This research was conducted to measure the thermal conductivity of stainless steel, iron, wood, rubber, and Styrofoam. After the measurement, the thermal conductivity of stainless steel was 15.14037 W / mK Reference 14.00 W / mK, iron 41.07 W / mK Reference 79.5 W / mK, wood 1.54 W / mK Reference 0.21 W / mK, rubber 0.6 Reference 0.2 W / mK, Styrofoam 0.062 W / mK Reference 0.095 W / mK. Thus, further research is needed on the method of measuring the thermal conductivity of metals by transient means.
Flexural Strength Analysis of Laminated Composites Using Clam Shell Powder and Bagasse Powder Ramadani Siregar; Zainal Arif; Muhammad Zulfri; Syamsul Bahri Widodo; Nazaruddin Abdul Rachman
JURUTERA - Jurnal Umum Teknik Terapan Vol 10 No 02 (2023)
Publisher : Fakultas Teknik Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55377/jurutera.v10i02.8268

Abstract

Composites are materials that have specific properties based on their constituent materials. The constituent materials consist of binders and reinforcements. Reinforcing materials come from synthetic fibers and natural fibers. Natural fibers can be waste that is wasted in the environment. These wastes include bagasse waste and clam shells. These wastes are made into fibers. Resin is mixed with fiber and blowing agent, then stirred until evenly distributed and poured into the mold, resulting in a composite material. This study aims to obtain the strength of composite materials due to three-point bending loading with the laminate fiber layer method. The manufacture of this test specimen uses bagasse powder and clamshell powder formed with a casting system. This material consists of 4 layers. The first and third layers are clamshell powder, and the second and third layers are bagasse powder. The fiber sizes of the specimens are 300mesh, 400mesh, and 500mesh. The fiber fraction ratio was 10% and 15%. The models were laminated and tested for three-point bending. The best results were found in the 500 mesh fiber size specimen, with a fraction ratio of 85% resin and 15% clam shell powder and bagasse. The maximum stress obtained was 63.46 MPa and strain 0.59 mm, with a bending force of 487.42 N.
Effect of Nacl Solution on Protection Rate of BJTP 40 Steel (SNI 07-2052-200219) With Sacrificial Anode Cathodic Protection Utilizing Zn Anode Syamsul Bahri Widodo; Nazaruddin Abdul Rahman; Zainal Arif; Joshua Tri Saputra
JURUTERA - Jurnal Umum Teknik Terapan Vol 10 No 01 (2023)
Publisher : Fakultas Teknik Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55377/jurutera.v10i01.8449

Abstract

Reinforced concrete is a crucial element in infrastructure. However, it is unfortunate that the issue of corrosion in reinforced concrete structures has a significant impact and requires detailed consideration. Since the 1980s, research on corrosion-related problems has been initiated, one of which involves the SACP (Sacrificial Anode Cathodic Protection) approach using Zn sacrificial anodes. The purpose of this method is to control the corrosion rate in reinforced concrete. Environmental factors, such as the composition of solutions, play a role in influencing the resulting corrosion rate. Therefore, research is conducted by applying different solutions, namely 4% and 5% NaCl solutions, as well as Freshwater. This aims to compare the effects of these solutions on the measured corrosion rate using Zn anodes. The test results over a 4-week period indicate that the 5% NaCl solution exhibits a very high corrosion rate, as evidenced by the corrosion potential value of -790.3 mV. Conversely, the freshwater solution demonstrates a lower corrosion rate, with a corrosion potential value of -225.6 mV and a corrosion risk of only around 10%. This research provides a deeper understanding of the impact of solutions on the corrosion rate in reinforced concrete and offers a more scientific and contemporary perspective in line with current developments.
PENERAPAN PRODUK OLAHAN IKAN NILA DI DESA UTEUN DAMA KECAMATAN PEUREULAK Syamsul Bahri Widodo; Taufan Arif Adlie; Rita Syntia; Amalia Harmin; Fazri Amir
Jurnal Masyarakat Berdikari dan Berkarya (Mardika) Vol 1 No 1 (2023): Jurnal Masyarakat Berdikari dan Berkarya (MARDIKA)
Publisher : Fakultas Teknik, Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55377/mardika.v1i1.8195

Abstract

Kegiatan pengabdian masyarakat ini bertujuan untuk memberdayakan warga Desa Uteun Dama dengan memanfaatkan potensi ikan nila dari waduk, yang akan diolah menjadi ikan asap dan ikan asin dengan nilai ekonomis yang tinggi. Kegiatan ini dilaksanakan di Desa Uteun Dama, Kecamatan Serbajadi, Kabupaten Aceh Timur, Provinsi Aceh.Salah satu tantangan yang dihadapi oleh masyarakat Desa Uteun Dama adalah kurang efisiennya proses pengolahan ikan asap dan ikan asin karena masih menggunakan metode konvensional. Oleh karena itu, tujuan utama dari kegiatan ini adalah merancang dan membuat sebuah alat pengasapan ikan yang dapat menghemat waktu pengasapan sekaligus menjamin kehigienisan produk yang dihasilkan. Metode kegiatan ini terdiri dari beberapa tahap, yaitu persiapan, pelaksanaan, pemantauan, dan evaluasi. Kegiatan pengabdian melibatkan mahasiswa KKN Tematik, dosen, serta mitra dari Desa Uteun Dama. Proses pembuatan alat pengasapan ikan dan rak pengering ikan asin dimulai dengan tahap perancangan dan pembuatan alat.Setelah itu, masyarakat Desa Uteun Dama akan diajari cara menggunakan alat pengasapan ikan ini, yang menggunakan tempurung kelapa dan mampu mengasapi ikan nila sebanyak 5 kg.Hasil dari kegiatan ini tidak hanya berupa penguatan pemahaman masyarakat mengenai manfaat ikan nila dalam menciptakan nilai ekonomi dan lapangan kerja baru, tetapi juga mencerminkan kepuasan masyarakat terhadap penggunaan alat pengasapan dan pengering ikan yang mampu menghemat waktu yang diperlukan.
Performance Evaluation of a Pelton Turbine with Fiberglass Composite Blades Using Three Nozzles in Different Positions Nasruddin A. Abdullah; Syamsul Bahri Widodo; Suheri; Rita Syntia; Zainal Arif; Cut Inayah
JURUTERA - Jurnal Umum Teknik Terapan Vol 11 No 01 (2024)
Publisher : Fakultas Teknik Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55377/jurutera.v11i01.9174

Abstract

Renewable energy utilization has become a primary focus in addressing the negative impacts of fossil fuel usage for electricity needs. One proposed solution is using water flow energy through a Pelton turbine. However, traditional materials used in Pelton turbines, especially metals, have disadvantages such as high inertia and susceptibility to corrosion. In this study, we replaced the Pelton turbine's material with fiberglass composite, which offers lower inertia and better corrosion resistance. This study aims to evaluate the performance of the Pelton turbine using fiberglass composite material. Tests were conducted by connecting the turbine to a generator and installing three adjustable nozzles, divided into seven sections based on the number of nozzles opened. Voltage, current, and electric power were measured using a power meter. The results show that with a load consisting of LED light bulbs, the section with one nozzle open (Section 2) achieved the best power output of 1.11 watts, while the section with two nozzles open (Section 6) achieved the best power output of 1.66 watts. Without load, the highest voltage occurred in Section 2 with one nozzle open at 30.9 volts, while the highest power was recorded in Section 4 with two nozzles open at 31.26 volts
Design and Fabrication of a Single-Stage U-Type Savonius Wind Turbine Using Low Wind Speeds and Water Hyacinth Composite Material Suheri Suheri; Syamsul Bahri Widodo; Zainal Arif; Iskandar Yacob; Muhammad Syafii
JURUTERA - Jurnal Umum Teknik Terapan Vol 11 No 01 (2024)
Publisher : Fakultas Teknik Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55377/jurutera.v11i01.10215

Abstract

This research created an innovative single-stage U-type Savonius wind turbine with water hyacinth composite material, intended for low wind speeds. With the steps of wind speed measurement, turbine rotation monitoring, and power measurement, interesting results such as a wind speed of 4.52 m/s producing a power of 5.17 volts were revealed. The significance lies in the potential of the water hyacinth composite turbine in utilizing low wind speeds to generate electricity. The conclusion notes the achievements in the manufacturing process of Savonius turbine blades and suggests that these findings provide an important basis for the development of composite-based wind turbines as an environmentally friendly renewable energy source.
EFFECT OF WELDING SEQUENCE ON DISTORTION RESULTS IN BRACKET CONNECTIONS Suheri, Suheri; Widodo, Syamsul Bahri; Arif, Zainal; Surawan, Surawan; Ali, Sulaiman; Pamungkas, Nurman; Syafii, Muhamad
ROTOR Vol 17 No 1 (2024)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/rotor.v17i1.49037

Abstract

The distortion in the shape of the weld specimen is influenced by the uneven heat distribution during the welding process. There is also distortion in the welding modeling performed on the bracket joint. The modeling scenario of the bracket joint forms the basis for measuring the distortion results. Therefore, when we model the bracket joint, we obtain varying distortion results. There are three lines to observe the distortion effects. Lines a, b, and c are located on the X and Y axes (center), while line c is on the X and Y axes (+). Line a is on the X and Y axes (-). The test specimen that has been modeled is the result of numerical modeling, which is then used to calculate the magnitude of the distortion on the longitudinally stiffened plate test specimen. For the numerical modeling of the bracket joint, the result of scenario 1 is distortion. Meanwhile, the distortion results of the bracket joint modeling in scenarios 1 and 2 show that the distortion value obtained in scenario 2 is higher than that obtained in scenario 1. This is influenced by the order of welding lines used in the bracket joint modeling.
Effect of Carbonization Temperature of Charcoal Briquettes from Corn Cob with Gondorukem (Resina Colophonium) Adhesive on Briquette Quality Standards Johanes Saragih, Kevin; A. Abdullah, Nasruddin; Bahri Widodo, Syamsul
JURUTERA - Jurnal Umum Teknik Terapan Vol 11 No 02 (2024)
Publisher : Fakultas Teknik Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55377/jurutera.v11i02.10364

Abstract

Briquettes are an alternative energy source made from agricultural waste. Apart from producing an alternative energy source, briquettes are a more efficient and income-generating solution for processing agricultural waste in Indonesia. This research obtains quality standard of briquettes due to carbonization temperature, time and variations in the ratio of adhesive. Carbonization temperature is 300-350°C, and 350-400°C with a temperature increase rate of 10 °C/minute for 15 and 30 minutes. Then the briquettes are molded with a charcoal mass ratio of 90:10 and 80:20 with adhesive. The briquettes are then tested using the SNI 1683-2021 method including calorific value, water content, ash content, volatile matter and fixed carbon. The best method for this research is Carbonization temperature on 350-400 ℃, time of carbonization and a ratio of 90% raw material and 10% adhesive (90:10) with test results of a heating value of 5,605.75 Cal/g, water content 6.29%, ash content 6.12 %, volatile matter 11.96 % and bound carbon 81.92 %.
PENCEGAHAN PENULARAN VIRUS KORONA DEMI MENJAGA KEAMANAN DAN KENYAMANAN TENAGA MEDIS RUMAH SAKIT UMUM DAERAH (RSUD) LANGSA MELALUI PENGGUNAAN PELINDUNG WAJAH (FACE SHIELD) Amin, Muhammad; Adlie, Taufan Arif; Amir, Fazri; Widodo, Syamsul Bahri; Akhyar, Akhyar
Jurnal Vokasi Vol 4, No 2 (2020): Oktober
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/vokasi.v4i2.1990

Abstract

Dalam masa pandemi COVID-19 individu yang paling berisiko terinfeksi adalah orang yang memiliki kontak erat dengan pasien COVID-19 seperti tenaga medis rumah sakit. Sarana dan prasarana pelayanan medis sangat terbatas yang tidak sejalan dengan jumlah pasien terus membludak. Dalam hal ini perlu diberikan perhatian penuh pada keamanan dan kenyamanan tenaga medis yang terus-menerus berinteraksi langsung dengan pasien. Oleh karena itu tenaga medis membutuhkan yang namanya Alat Pelindung Diri (APD) salah satunya adalah pelindung wajah (face shield). Tujuan dari kegiatan pengabdian kepada masyarakat (PKM) ini adalah untuk memperkenalkan dan memberikan bantuan berupa face shield kepada Rumah Sakit Umum Daerah (RSUD) Langsa yang digunakan oleh tenaga medis rumah sakit. Tahapan pelaksanaan pengabdian ini terdiri dari tahap persiapan, tahap desain face shield, tahap pelaksanaan, tahap monitoring dan evaluasi, dan tahap pelaporan. Hasilnya adalah diperoleh suatu produk face shield yang memiliki ukuran sesuai dengan kepala manusia dan penutup wajahnya dapat diganti sesuai dengan kebutuhan. Dalam pelaksanaan pegabdian, pihak rumah sakit sangat mengapresiasikan tim pengabdian dari Prodi Teknik Mesin Universitas Samudra (Unsam) yang mau membantu mendistribusikan face shield sebanyak 100 buah kepada tenaga medis RSUD Langsa. Tenaga Medis RSUD Langsa juga mengatakan face shield hasil rancangannya cukup nyaman saat dipakai. Oleh karena itu program pengabdian yang dilaksanakan Prodi Teknik Mesin Unsam tepat sasaran dan sesuai dengan harapan.
Co-Authors A. Abdullah, Nasruddin Abdullah, Nazaruddin Abu Ilham Awang Ahmad Syuhada Akhyar Akhyar Ali, Sulaiman Amalia Harmin Arif, Zainal arif, zainal - Bujang Sugiono Cut Inayah Cut, Banta Devy Suhendar Fazri Amir Fiqri, M. Shyadul Hamdani Umar Izhar Amri, Muhammad Jayawarsa, A.A. Ketut Johanes Saragih, Kevin Joshua Tri Saputra Kamaruzzaman, Teuku Muhammad Alfi Muhammad Amin Muhammad Amin Muhammad Isra Muhammad Syafii Muhammad Wildan Alkhair Muhammad Zulfri Nasruddin Abdullah Nazaruddin Abdul Rachman Pamungkas, Nurman Parlindungan Lumban Batu Ponidi - Sanjaya Puput Heri Syahputra Rahman Ramadani Siregar Razali Thaib Rita Syntia Rita Syntia Rita Syntia Rouli Pasaribu, Viviany Sanjaya, Ponidi - Sembiring, Dicky Maranata Sihombing, Bryan Stein Slamet Royadi Subhan Subhan Suheri Suheri Suheri - Suheri Suheri Suheri Surawan, Surawan Syafii, Muhamad Taufan Arif Adlie Teuku Azuar Rizal Urhamdi, Nila Wiryadinata, Fahry Yakob Iskandar Yakob, Iskandar Yusup, Intan Zainal Arif