Article Per Year (5 Year)
p-Index From 2020 - 2025
3.354
P-Index
This Author published in this journals
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

Published : 34 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 34 Documents
Search

 1   2   3   4 
ANALISIS KARAKTERISTIK TERMAL BIO OIL DAN BIO ARANG DENGAN PROSES PIROLISIS MENGGUNAKAN BAHAN BAKU KALIANDRA MERAH Rouli Pasaribu, Viviany; A. Abdullah, Nasruddin; Bahri Widodo, Syamsul
JURUTERA - Jurnal Umum Teknik Terapan Vol 12 No 01 (2025)
Publisher : Fakultas Teknik Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55377/jurutera.v12i01.11563

Abstract

The global demand for fuel oil continues to rise, while petroleum reserves are steadily declining. As a response to this challenge, new and renewable energy sources (EBT) offer viable alternatives, minimizing environmental impact while ensuring long-term energy sustainability. Among these alternatives, bio-oil and biochar emerge as promising renewable energy sources. This study aims to analyze the thermal characteristics of bio-oil and biochar produced through pyrolysis using red calliandra wood as a feedstock. The pyrolysis process was conducted at varying temperatures of 300 °C, 400 °C, and 500 °C for 60 minutes. Results indicate that the optimal pyrolysis temperature is 500 °C, yielding biochar with the highest calorific value of 7,145 cal/g and bio-oil with a calorific value of 3,276 cal/g. Thermal analysis reveals significant activity at 283 °C, indicating the thermal decomposition of red calliandra biomass. Higher pyrolysis temperatures enhance biochar quality by reducing moisture and ash content while increasing fixed carbon concentration. The findings underscore the potential of red Calliandra wood as a renewable energy feedstock. This research contributes to the advancement of biomass-based energy technologies and presents opportunities for further optimization of the pyrolysis process. Given Indonesia’s abundant biomass resources, biochar offers a promising pathway for sustainable energy development.
PENGARUH PENGGUNAAN KOIL STANDAR DAN KOIL RACING DENGAN PENAMBAHAN KABEL GROUNDING TERHADAP UNJUK KERJA MESIN PADA SCORPIO Z 225 Wiryadinata, Fahry; A. Abdullah, Nasruddin; Bahri Widodo, Syamsul; Yakob, Iskandar
JURUTERA - Jurnal Umum Teknik Terapan Vol 12 No 01 (2025)
Publisher : Fakultas Teknik Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55377/jurutera.v12i01.11608

Abstract

This study aims to determine the effect of using standard coils, racing coils, and racing coils with the addition of grounding cables on the performance of the Scorpio z 225 engine. Variations in the type of ignition coil with the addition of grounding cables are used to evaluate their impact on engine performance such as torque, power, fuel consumption, AFR, volumetric efficiency, thermal efficiency and ignition mass resistance. The results of the experimental test showed that the use of a racing ignition coil with the addition of a grounding cable obtained the highest torque and power at 8000 rpm, which were 19.21 Nm and 16.05 kW, respectively. Fuel consumption is also more efficient due to the use of a racing ignition coil with the addition of a grounding cable because combustion becomes more perfect. The use of a racing ignition coil and grounding cable can also provide better AFR than a standard ignition coil. The use of a racing ignition with the addition of a grounding cable provides the highest values ​​for volumetric efficiency and thermal efficiency at 8000 rpm of 62.8% and 42.99%. The lowest ignition mass resistance is also obtained from the use of a grounding cable with a value of 7.6 ohms at 8000 rpm.
Studi Pemanfaatan Enceng Gondok (Eichhornia Crassipes) sebagai Bio-briket Ramah Lingkungan: Studi Eksperimental Bahri Widodo, Syamsul; Arif, Zainal; Yakob, Iskandar; Suheri, Suheri; Sembiring, Dicky Maranata
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 4 No 1 (2025): April
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v4i1.193

Abstract

Eichhornia crassipes (water hyacinth) is a fast-growing aquatic plant in tropical regions like Indonesia. Though often considered a weed, it remains underutilized as an alternative energy source. This study explores its potential as a solid fuel in the form of eco-friendly bio-briquettes. The production process includes drying, carbonization, sieving, mixing with binder, molding, and final drying. Laboratory tests involved proximate analysis and calorific value measurement. Results showed that the briquettes contained 9.61% moisture, 3.93% ash, 7.89% volatile matter, 78.57% fixed carbon, and a calorific value of 25.8 kJ/g. Compared to coconut shell briquettes, water hyacinth briquettes burn more slowly but offer cleaner and more stable combustion. These characteristics make them a suitable renewable energy source for households and small industries.
Analisis Pengaruh Besar Sudut Potong & Ketebalan Mata Pisau Pada Mesin Pencacah Daun Kering Terhadap Hasil Cacahan Izhar Amri, Muhammad; Bahri Widodo, Syamsul; Arif, Zainal
JURUTERA - Jurnal Umum Teknik Terapan Vol 12 No 02 (2025)
Publisher : Fakultas Teknik Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55377/jurutera.v12i02.12077

Abstract

Technology development aims to simplify work and improve equipment efficiency, including modifying the dry leaf chopper to optimize chopping results. This modification focuses on variations in the angle and thickness of the blade to obtain finer shreds that meet the needs. This study aims to determine the most effective cutting angle and blade thickness in producing the best shreds. The research was conducted at the Mechanical Engineering Laboratory of Samudra University in August 2024. The blades used varied in cutting angles of 30°, 20°, and 10° and thicknesses of 3 mm and 5 mm. The quantitative analysis method was applied in this study using the independent sample T-test to evaluate the effectiveness of each variable. The results showed that a blade angle of 10° was the most effective angle for softening the chopped dry leaves. In addition, the most optimal blade thickness to produce fine shreds was 3 mm. This modification shows a significant improvement compared to the previous shredder, which used an angle and blade thickness with less than optimal results. With this research, it is expected that the dry leaf shredder can function more efficiently and produce shreds that meet the standards
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