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Trends in Mechanical Engineering Research
Published by Universitas Sultan Ageng Tirtayasa
ISSN : 30254299     EISSN : 30256801     DOI : http://dx.doi.org/10.62870/timer.v1i2
Core Subject : Engineering,
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Industrial & Manufacturing Engineering
TiMER: Trends in Mechanical Engineering Research is a blind-peer-review journal. TiMER mainly focuses on Mechanical Engineering fields. Detailed scopes of articles accepted for submission to TiMER are Renewable Energy, Sustainability, and Environmen; Fuel Technology; Material Mechanics; Biomaterial; Materials Science and Nanotechnology; Metals and metal alloys; Ceramics and Composites; Polymers and Plastics; Manufacturing; Control and Systems Engineering; Safety, Risk, Reliability, and Quality; Automotive Engineering; Computational Mechanics; and Mechanical engineering design.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 6 Documents
 1 
Search results for , issue "Vol 1, No 2 (2023): December" : 6 Documents clear
MODELING AND DYNAMIC ANALYSIS OF VEHICLE SUSPENSION BASED ON STATE SPACE VARIABLE Listijorini, Erny; Guntur, Harus Laksana; Susilo, Sidik; Ula, Shofiatul; Ananda, Rafi Rizqi; Haryadi, Haryadi
Trends in Mechanical Engineering Research Vol 1, No 2 (2023): December
Publisher : Department of Mechanical Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/timer.v1i2.25765

Abstract

The suspension system is a crucial mechanical component in a vehicle, particularly in cars, situated between the vehicle body and the wheels. The suspension system functions to dampen vibrations and prevent their transmission to the vehicle body. The objective of this research is to obtain a system model for a vehicle suspension, which will be subsequently simulated. The simulation results of the developed system model can then be analyzed using MATLAB. After conducting the simulation, the dynamic response generated from the simulation is analyzed. The simulation results for a road bump with a height of 0.2 m and varying speeds of 20 km/h, 30 km/h, and 40 km/h reveal the occurrence of overshoot in the vehicle chassis, measuring 0.032 m, 0.022 m, and 0.017 m, respectively. The settling time for the vehicle chassis occurs successively in 1.59 seconds, 1.33 seconds, and 1.28 seconds. The vehicle tends to return to a stable position more quickly at higher speeds compared to lower speeds. Similarly, the settling time decreases as the speed increases.
MECHANICAL PROPERTIES CHARACTERIZATION OF THE FRICTION WELDING OF ALUMUNIUM WITH COPPER USING VARIATIONS IN ROTATIONAL SPEED AND CONTACT SURFACE ROUGHNESS Saefuloh, Iman; Sunardi, Sunardi; Lusiani, Rina; Jannah, Miftahul; Suryana, Suryana
Trends in Mechanical Engineering Research Vol 1, No 2 (2023): December
Publisher : Department of Mechanical Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/timer.v1i2.25672

Abstract

One of the welding used for different materials is by using friction welding. Friction welding is a welding method by swiping the two materials until they reach some of the melting points of the materials to be joined and then subjected to constant pressure. In this study, the materials to be joined were aluminum and copper. By using variations of rotational speed and contact surface roughness, the mechanical properties of the welds were investigated. The speed variations used were 1230, 1500, and 2500 rpm. Meanwhile, for variations in surface roughness, sandpaper grades 100, 800, and 1500 were used. The results of this study were that at a rotational speed of 1230 rpm, the highest tensile strength and hardness values were obtained, namely 59.6 MPa and 54.6 HVN (Al), 112.1 HVN (Cu). For variations in surface roughness, the highest hardness value was found in surface roughness using sandpaper grade 1500, namely 54.18HVN (Al), and 112.1HVN (Cu). And the highest tensile strength is obtained on grade 100 sandpaper with a value of 52.48MPa. The results of the microstructure test in the weld joint area with a magnification of 1000x showed that the welding of aluminum and copper using the friction welding method was successful, as evidenced by the diffusion of aluminum and copper in this area.
THE IMPACT OF DIFFERENT CONVERTER KIT TYPES ON THE PERFORMANCE OF A DIESEL ENGINE UTILIZING BIOSOLAR AND LPG FUEL Rosyadi, Imron; Caturwati, Ni Ketut; Satria, Dhimas; Suprayogi, Dedy Triawan; Ula, Shofiatul; Relawan, I G Putu
Trends in Mechanical Engineering Research Vol 1, No 2 (2023): December
Publisher : Department of Mechanical Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/timer.v1i2.25740

Abstract

The impact of the converter kit type on the performance of diesel engines using biodiesel and LPG fuel has been explored. Converter kits play a vital role in transforming the fuel supply system, and experiments have been conducted to assess their influence on various engine performance parameters. The findings of the study indicate that the selection of a converter kit significantly affects the performance of dual-fuel diesel engines (biodiesel and LPG). Gas Heater converter kits, including type 1, type 2, and type 3 variations, were scrutinized in this research. Testing revealed variations in LPG-Biodiesel fuel mixing ratios depending on the type of converter kit employed. For instance, Gas Heater type 3 achieves the highest value with a mixing ratio of 14.4. Furthermore, the performance of the engine in terms of power and torque is also impacted by the type of converter kit utilized. Gas Heater type 1 exhibits peak performance, with power reaching 5.4 kW and torque measuring 34.81 Nm. Despite the operational costs of dual-fuel diesel engines tending to be higher than those using pure biodiesel, the research concludes that the choice of the converter kit type can have a substantial effect on engine performance, particularly regarding fuel efficiency.
REVIEW OF COMPUTATIONAL FLUID DYNAMIC (CFD) OF SAVONIUS ROTOR FOR TURBINE RENEWABLE ENERGY Habibie, Alwan; Wahyudi, Hadi; Suprayogi, Dedy Triawan
Trends in Mechanical Engineering Research Vol 1, No 2 (2023): December
Publisher : Department of Mechanical Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/timer.v1i2.25761

Abstract

This research aims to establish the accuracy foundation of Computational Fluid Dynamics (CFD) in simulating the utilization of Savonius Rotor in marine currents, particularly in the vast potential waters of Indonesia. The methodology involved a comprehensive review of journal articles, evaluating studies on the application of CFD in simulating the performance of Savonius turbines in marine current environments. The journal review findings indicate the effective use of CFD in replicating Savonius Rotor behavior, particularly in Indonesia's marine current context. The evaluation of CFD simulation accuracy in this study reveals reliable and accurate results, aligning well with experimental data. These findings suggest that CFD is a dependable tool for effectively simulating Savonius Rotor performance in Indonesian marine current conditions, providing a strong foundation for further research on harnessing marine current potential as a renewable energy source in Indonesia.
DECOMPOSITION OF EXHAUST EMISSIONS FROM THE PORTABLE INCINERATOR Sudrajad, Agung
Trends in Mechanical Engineering Research Vol 1, No 2 (2023): December
Publisher : Department of Mechanical Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/timer.v1i2.25764

Abstract

Combustion is a chemical process called exothermic reaction, where all chemical reaction involves energy to break bonds in reactants, and energy is released when new bonds form in products. The combustion process that occurs in the incinerator is an exothermic reaction where hydrocarbon reacts with oxygen to produce heat, carbon dioxide (CO2), and water vapor. However, in general combustion process that occurs is usually an imperfect reaction that creates harmful gas emissions. In this research, the author uses an electrostatic precipitator to filter emissions produced by the incinerator. An incinerator is a furnace used to treat solid waste, then turn it into gas, and ashes (fly ash and bottom ash). The experiment compares the combustion emission with the usage of ESP and without ESP. The experiment used a portable gas analyzer to gather emission data. The result of this research shows that ESP can reduce emissions from incinerator by 41% in filtering carbon monoxide (CO),18% in filtering hydrocarbon (HC), and 11% in filtering carbon dioxide (CO2). The oxygen value increases by 8% in ESP turned-on condition.
TURBINE PERFORMANCE ANALYSIS IN THE HIGH PRESSURE HEATER (HPH) CONDITION NOT OPERATING Caturwati, Ni Ketut; Yusuf, Yusvardi; Rosyadi, Imron
Trends in Mechanical Engineering Research Vol 1, No 2 (2023): December
Publisher : Department of Mechanical Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/timer.v1i2.25671

Abstract

Turbines are one important component in a power plant. The function of the turbine is to utilize the potential energy contained in the steam which is then converted into kinetic energy by the nozzle, then the kinetic energy is converted again into mechanical energy in the turbine blade and shaft rotation. In a rankine cycle after the steam comes out of the Low Pressure Turbine (LPT), the steam will change in phase from gas to liquid by passing through the condenser. The condensate water is heated again through a Low Pressure Heater (LPH) until finally it is heated again to the High Pressure Heater (HPH) before entering the boiler. But whether the performance of the turbine if when the HPH is not operating will decrease. In this study, an efficiency calculation will be carried out between the condition of the HPH operating and the condition of the HPH not operating, as well as finding coal consumption in both conditions. Based on the study, turbine efficiency did not show any significant difference between the condition of the HPH being in operation and the HPH not operating, that is 94.07% for the condition of the HPH to operate and 93.72% for the condition of the HPH not operating. While coal consumption at the time the HPH was operating was 164 Ton / h and at the HPH not operating was 170 Ton /h.

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