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Contact Name
Sugeng Hadi Susilo
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+6281334519340
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INDONESIA
Evrimata: Journal of Mechanical Engineering
ISSN : -     EISSN : 30476305     DOI : https://doi.org/10.70822/evrmata.vi
Evrimata: Journal of Mechanical Engineering The interdisciplinary research edition covering scientific areas: - Mechanical Engineering - Otomotive Engineering - Material Engineering Taking into account the interdisciplinary character of the journal, the authors in its materials should emphasize field of application of their research, always emphasizing the importance of the subject for the research community in related fields of knowledge. For example: - If the article deals with the new inorganic materials then should be pointed as such materials may be used by specialists in the field of energy, electronics, etc., or how understanding the mechanism of the processes can be taken into account in the synthesis of other new materials. - If the article is about new methods of mathematical modeling, it should specify what restrictions may apply specifics of field of application to the proposed original method (accounting of external factors, the initial or boundary conditions, internal factors that can not be an accurate accounting and so on). Therefore, when submitting the articles in this section, are welcome articles, co-authors of which are experts in different fields of knowledge.
Articles 5 Documents
Search results for , issue "Vol. 01 No. 03, 2024" : 5 Documents clear
The Effect of a Mixture of Gasoline and Ethanol in a Direct Injection System Engine on Power and Specific Fuel Consumption Fina Rizqiani; Irawan , Bambang
Evrimata: Journal of Mechanical Engineering Vol. 01 No. 03, 2024
Publisher : PT. ELSHAD TECHNOLOGY INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70822/evrmata.v1i03.34

Abstract

The use of fossil fuels as the main fuel for vehicles is one of the problems in the automotive industry, considering that supplies are increasingly running low. The use of renewable fuel is an alternative in dealing with this problem, one of which is the use of ethanol as a gasoline fuel mixture. Ethanol which can be obtained from plants is more promising in terms of energy sustainability, and the high octane value of ethanol allows for increased combustion efficiency and can produce optimal engine power. This research identifies the influence of gasoline-ethanol mixture and engine speed on power and specific fuel consumption in direct injection engines. The research was carried out by testing the power of an electric generator driven by a 1-cylinder direct injection engine, as well as calculating fuel consumption while the engine was operating. The results of this research show that the E10 produces the best performance at low and medium revs with the highest power of 0.119 kW and 0.490 kW, while the E5 is superior at high revs with a power of 0.644 kW. In terms of fuel efficiency, E15 has the lowest SFC at low speed (3.83 L/kWh), E10 at medium speed (0.96 L/kWh), and E5 at high speed (0.77 L/kWh). E20 shows the lowest efficiency in all runs. The results of this research can be used to design direct injection engines with mixed fuels consisting of gasoline, ethanol and diesel
The Effect of Using Epoxy As a Substitute For Hydroxyl-Terminated Polybutadiene (HTPB) on Manufacturing Solid Propellants Maryono, Maryono; Ali, Muhammad; Lazuardi, Lazuardi
Evrimata: Journal of Mechanical Engineering Vol. 01 No. 03, 2024
Publisher : PT. ELSHAD TECHNOLOGY INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70822/evrmata.v1i03.39

Abstract

The solid propellant consists of ammonium perchlorate (AP)/Hydroxyl- Terminated Polybutadiene (HTPB) composite material. In this research, innovation was carried out using epoxy as a substitute for HTPB. The analysis carried out in this research includes analysis of fuel propagation speed, combustion temperature, exit pressure, gas speed, and thrust force. Based on the results of research that has been carried out, increasing the addition of epoxy results in a decrease in combustion speed, combustion temperature, exit pressure, and combustion gas speed so that the resulting thrust force decreases. The most optimum composition in this research was composition A using 46% Ammonium Perchlorate, 36% Aluminum, and 18% Epoxy. The resulting thrust force on composition A is 750.5771 N. The difference in the thrust force results between HTPB and composition A is 1.8731 N. This proves that epoxy can be used as a substitute for HTPB.
Simulation of Quadcopter Flying Electric Vehicle Chassis Hadi Susilo, Sugeng; kurniawan, kurniawan; Yudiyanto, Eko; Indra Kurniawan, Bakti
Evrimata: Journal of Mechanical Engineering Vol. 01 No. 03, 2024
Publisher : PT. ELSHAD TECHNOLOGY INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70822/evrmata.v1i03.48

Abstract

The increase in population means that the need for transportation is also increasing, causing more or less air pollution. Besides that, fuel oil is also a non-renewable natural resource. Oil fuel comes from plants and animals that have been dead for millions of years which have become fossils and which have been formed for a very long time  automatically become expensive. Therefore, people need vehicles that have many  advantages, including environmentally friendly, do not produce air pollution, do not produce noise, avoid traffic jams, and are easy to maintain. Flying electric vehicles are the right choice to overcome this problem. Electric car is a car driven by an electric motor that uses electric power stored in a battery. One of the advantages is that the engine construction is simpler compared to combustion engines which have so many components because there is combustion in the engine. Electric vehicles certainly need a chassis. The chassis that will be used is a tubular chassis type using fiberglass. The aim of this research focuses on planning electric flying vehicles, more precisely on static simulation of chassis design. The results of this research can be used as consideration for designing the chassis structure of flying electric vehicles. This research is expected to be the beginning of the development of an electric quadcopter flying vehicle chassis.
Small PLTS Off Grid 240 WP on Residential House Rooftop Puspitasari, Etik; Eko Yudiyanto; Lisa Agustriyana; Nila Alia
Evrimata: Journal of Mechanical Engineering Vol. 01 No. 03, 2024
Publisher : PT. ELSHAD TECHNOLOGY INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70822/evrmata.v1i03.56

Abstract

Small PLTS on residential rooftops are now being widely applied. It can contribute to using alternative energy to support government programs to save electricity costs. It can also be used as backup electricity when PLN power outage. The purpose of this research is to be able to calculate the use of electric power in residential homes, design and make small PLTS off grid 240 WP from the use of electric power, calculate BEP when the payback time of the total investment in the procurement of small PLTS 240 WP with DC and AC systems. 240 WP power on the rooftop of a residential house is carried out for a load of 8 lights AC with 6 watts and one fan. This research showed that the total daily electric power usage was 0.55 kWh/day or 16.5 kWh/month. The design of 240 WP PLTS on the rooftop of a residential house according to the total household electricity needs of 550 watts/day requires core equipment such as two solar panels (120 WP), one battery (12 V 100 Ah), Inverter (12 V to 220 V) = 1000 Watt or 1 kWh as much as one piece, SCC = 20 A as much as one piece. The results of making 240 WP PLTS on the rooftop of a residential house accorded to the total electrical power needs of the household. Break Even Point on this application of 240WP solar power PLTS on residential rooftops with 1300 V power will return capital in 19.5 years. Where the total investment cost of procuring 240 WP PLTS is Rp. 5,558,000, and the cost of electricity per month from the above load is Rp. 23,850 / month or Rp. 286,200 / year.
Effect of Coconut Shell-Based Active Carbon Adsorbent on Motorcycle Exhaust Gas Emissions Putra Gitama, Nahindi; Hidayat, Najmul; Pebrianti, Dwi
Evrimata: Journal of Mechanical Engineering Vol. 01 No. 03, 2024
Publisher : PT. ELSHAD TECHNOLOGY INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70822/evrmata.v1i03.57

Abstract

This study focused on the utilization of active carbon derived from coconut shells as an adsorbent to reduce exhaust gas emissions in motorcycles. The research aimed to compare the exhaust emissions before and after installing active carbon in the muffler and to analyze its effect on the levels of CO, HC, and CO2 at different engine speeds. A laboratory experiment was conducted with varying masses of active carbon, and emission data were collected and analyzed using two-way ANOVA. The results demonstrated that with the use of 200 grams of active carbon, the CO emission decreased by 12.06%, HC by 16.96%, and CO2 by 9.17%. These reductions are attributed to the strong adsorptive properties of active carbon, which facilitated the physical and chemical separation of harmful gases. The study concluded that active carbon significantly reduces exhaust emissions, providing a practical solution for improving air quality in motorcycles. The findings offer an effective method for emission control that could be applied under various operating conditions, making it suitable for widespread implementation in emission-reduction systems for small engines.

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