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Mirmanto
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dinamikateknikmesin@gmail.com
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Jurusan Teknik Mesin, FT, Universitas Mataram, Jl. Majapahit no. 62, Mataram, NTB, 83125, Indonesia
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INDONESIA
Dinamika Teknik Mesin : Jurnal Keilmuan dan Terapan Teknik Mesin
Published by Universitas Mataram
ISSN : 2088088X     EISSN : 25021729     DOI : https://doi.org/10.29303/dtm.v14i1
Core Subject : Science, Engineering,
Aerospace Engineering Automotive Engineering Mechanical Engineering Physics
The Dinamika Teknik Mesin is a peer-reviewed academic journal which publishes originally research papers or simulation/computational articles in all aspect of Mechanical Engineering such as energy conversion, materials, design and production/ manufacturing. The Dinamika Teknik Mesin publishes in two issues per volume annually appearing in June and December. Due to administrative constraints, then starting in January 2018, the Dinamika Teknik Mesin publishes the volume and issue in January and July. However, starting in 2020, the Dinamika Teknik Mesin publishes issues in April and October due to the new administration.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 462 Documents
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Effect of solid carburizing process using natural catalysts on the wear resistance ofAISI 1018 steel S. Sujita; P. Pandiatmi; S. Suteja; I.P. Lokantara
Dinamika Teknik Mesin Vol 16, No 1 (2026): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dtm.v16i1.1265

Abstract

Low carbon steel AISI 1018 is extensively used in agricultural and mechanical components owing to its good formability and weld ability; however, its low surface hardness restricts its wear performance. Solid carburizing is a well-established surface hardening technique to address this limitation, while the utilization of natural catalysts derived from local biomass presents a sustainable and cost-effective alternative to conventional chemical activators. This study examines the effect of solid carburizing using natural catalysts broiler chicken bone powder, laying hen bone powder, and duck bone powder on the wear resistance of AISI 1018 steel. Carburizing treatments were performed using teak charcoal as the carbon source, mixed with the natural catalysts, at 900 °C for 1, 1.5, 2, and 3 h, followed by rapid cooling to induce surface hardening. The treated specimens were evaluated through hardness measurements and dry sliding wear tests, complemented by microstructural analyses to assess surface morphology and effective case depth. The results reveal a pronounced increase in surface hardness and a significant improvement in wear resistance compared with untreated steel. These improvements are associated with enhanced carbon diffusion and the formation of a martensitic carburized layer after quenching. Overall, the findings demonstrate that solid carburizing assisted by natural catalysts is an effective approach to improving the wear resistance of AISI 1018 steel, offering a sustainable and economically viable surface modification route for low carbon steel employed in agricultural and engineering applications.
The effect of electric turbulent flow pressure in the intake system on diesel engine emissions and performance D.A. Muntaha; A. Sanata; M.F.R. Hentihu; N. Ilminnafik; S.N.H. Syuhri
Dinamika Teknik Mesin Vol 16, No 1 (2026): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dtm.v16i1.1254

Abstract

Current diesel engine technology development is directed at improving performance and fuel efficiency in line with the demands of exhaust emission control. One potential approach to achieve this goal is intake system engineering through airflow conditioning. This study aims to experimentally investigate the effect of applying pressure electric turbulent flow (PETF) to the intake system on the characteristics of the intake airflow, engine performance, fuel consumption, and exhaust emissions of a standard 2300 cc diesel engine. Testing was conducted by comparing engine conditions without PETF and with PETF at several engine speed levels under steady-state operating conditions. The parameters described include intake air pressure and temperature, torque, effective power, Brake Specific Fuel Consumption (BSFC), and soot opacity as an indicator of particulate emissions. The results show that the application of PETF increases intake air pressure and improves intake flow characteristics, which results in increased torque and effective power, especially at low to medium speeds. In addition, the use of PETF results in a decrease in BSFC and soot opacity values compared to the condition without the device, indicating increased combustion efficiency and reduced particulate formation. Overall, these results indicate that pressure electric turbulent flow has the potential to be an applicable approach to improve the performance, fuel efficiency, and emission control of standard production diesel engines without requiring internal engine modifications.

Page 47 of 47 | Total Record : 462

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