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Contact Name
Sugeng Hadi Susilo
Contact Email
shadis172.gh@gmail.com
Phone
+6281334519340
Journal Mail Official
evrimata.engineering.physics@gmail.com
Editorial Address
Jl, Margobasuki VII no 19, Mulyoagung, Dau-Malang, Jawa Timur 65151
Location
Kota malang,
Jawa timur
INDONESIA
Journal of Evrimata: Engineering and Physics
ISSN : -     EISSN : 30251265     DOI : https://doi.org/10.70822/journalofevrmata.vi
- Engineering (miscellaneous) - Civil and Structural Engineering - Electrical and Electronic Engineering - Mechanical Engineering - Chemical Engineering - Physics - Computer Science - Energy
Articles 5 Documents
Search results for , issue "Vol. 03 No. 02, 2025" : 5 Documents clear
Design and Manufacture of Floating Hydroponic Planting Media Based on 3D Printing Technology LAZUARDI, LAZUARDI; Zuhrohfi Immaroh, Nundiah; Hadi Susilo, Sugeng
Journal of Evrímata: Engineering and Physics Vol. 03 No. 02, 2025
Publisher : PT. ELSHAD TECHNOLOGY INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70822/journalofevrmata.vi.82

Abstract

This study examines the design and fabrication of innovative floating growing media based on 3D printing technology to support hydroponic systems in limited land and shallow waters. The design process was carried out using CAD software, then printed using a 3D printer with environmentally friendly PLA material. The four main components of the growing media produced were the Nutrition Tube, Nutrient Pipe, Buoy, and Water Grid, printed using constant parameters: a speed of 80 mm/min, a layer thickness of 0.2 mm, and a wall thickness of 0.8 mm. These parameters ensure precise dimensions and a sturdy structure. Tests showed that the growing media had stable buoyancy with a carrying capacity of up to 250 grams, buoyancy stability analysis used the CFD simulation method to determine the pressure distribution. The highest pressure was found in the Buoy area (12–15.89 Pa), while the bottom side of the float showed negative pressure (-4.9–0 Pa), indicating good hydrodynamic balance. These results indicate that 3D printing technology is effectively used in the development of lightweight, efficient, and customizable precision growing media, thus contributing to a sustainable floating farming system.
Analysis of the Waste Management System at Tombro TPS Tunjungsekar Village, Lowokwaru District, Malang City, East Java damayanti, fifi; Yurnalisdel, Yurnalisdel; Venus Darnia, Evabius
Journal of Evrímata: Engineering and Physics Vol. 03 No. 02, 2025
Publisher : PT. ELSHAD TECHNOLOGY INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70822/journalofevrmata.vi.91

Abstract

Currently, the Temporary Waste Collection Point (TPS Tombro) faces challenges in implementing a waste processing system based on the 3R principle (Reduce, Reuse, Recycle). While there are sorting facilities, the inorganic waste sorting largely depends on scavengers, and there is no organic waste processing. This research aims to analyze the waste management system at TPS Tombro, focusing on its infrastructure, supporting facilities, and capacity to accommodate waste from the surrounding area. Data collection was conducted through interviews, field observations, and waste transport surveys. The results show that although some of the infrastructure and facilities are underutilized, TPS Tombro can still manage the waste generated in its service area without significant accumulation. The study also provides quantitative data on the daily waste volume and compares the capacity of TPS Tombro with the generated waste. The analysis reveals potential areas for improving the waste management process, ensuring greater efficiency and sustainability
The Effect of Adding ZnO Nanoparticles to Radiator Coolant on Heat Transfer Performance in Motor Vehicle Cooling Systems Faizal, Elka; Hadi Susilo, Sugeng
Journal of Evrímata: Engineering and Physics Vol. 03 No. 02, 2025
Publisher : PT. ELSHAD TECHNOLOGY INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70822/journalofevrmata.vi.119

Abstract

This study investigates the impact of adding Zinc Oxide (ZnO) nanoparticles to radiator coolant to enhance the heat transfer performance of automotive cooling systems. The research explores the optimal concentration of ZnO nanofluids and examines operational conditions such as flow rates (7-11 lpm) and fluid temperatures (60°C, 70°C, and 80°C) to determine their effect on heat transfer performance. The results demonstrate that ZnO nanoparticles significantly improve the heat transfer coefficient, with the highest performance observed at a concentration of 0.35% ZnO and a temperature of 70°C. The optimal combination of flow rate (10 lpm) and temperature (70°C) resulted in a 62.86% increase in heat transfer compared to conventional coolant. This study provides valuable insights into selecting the optimal nanofluid concentration and operational conditions for improving vehicle radiator performance.
HHO Gas Productivity Analysis Using A Dry Cell Type HHO Generator With Variations of Copper and Stainless Steel Electrodes, Electric Current, and NaOH Concentration hadi susilo, sugeng; Aida Nadhifatul Aini, Fica; Wicaksono, Hangga
Journal of Evrímata: Engineering and Physics Vol. 03 No. 02, 2025
Publisher : PT. ELSHAD TECHNOLOGY INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70822/journalofevrmata.vi.120

Abstract

properties and rapid combustion. However, optimizing the performance of dry cell HHO generators remains a significant challenge. This study investigates the effect of varying electrode materials (copper and stainless steel), electric current, and NaOH concentration on HHO gas production. The key performance indicator used is the flow rate of HHO gas produced. Results show that increasing electric current significantly enhances HHO production, though this relationship is non-linear due to the rise in electrolyte temperature and internal resistance. A higher NaOH concentration increases electrolyte conductivity, improving HHO production, but excessive concentrations can lead to higher temperatures and electrode degradation. Copper electrodes outperformed stainless steel in gas production due to better electrical conductivity, while stainless steel exhibited superior corrosion resistance over time. Optimizing the combination of electrode material, current, and NaOH concentration is crucial for enhancing the performance of dry cell HHO generators, offering valuable insights for hydrogen-based energy systems.
Impact of Groundstrap Configuration on Exhaust Emissions in 110cc Motorcycles: The Role of Electrode Material and Coil Turns khambali, khambali; Viyus, Vinan
Journal of Evrímata: Engineering and Physics Vol. 03 No. 02, 2025
Publisher : PT. ELSHAD TECHNOLOGY INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70822/journalofevrmata.vi.121

Abstract

Environmental concerns regarding emissions from small motorcycles necessitate the optimization of ignition systems to improve combustion efficiency and reduce harmful exhaust gases. This study analyzes the combined effect of groundstrap configuration—specifically coil turns and material type (copper vs. aluminum)—on exhaust emissions (CO, HC, CO₂, and O₂) in a 110cc motorcycle. The experimental approach involved testing a 110cc four-stroke motorcycle with copper and aluminum groundstraps. The number of coil turns was varied (100, 150, and 200 turns), and engine speeds (1400, 2000, 4000, and 6000 rpm) were tested. Emissions were measured using a calibrated gas analyzer. Results revealed that copper groundstraps with 200 turns significantly reduced CO and HC emissions, with the most notable CO reduction. Copper groundstraps were superior in stabilizing ignition voltage, improving combustion quality compared to aluminum. In contrast, while aluminum groundstraps showed lower emissions, they were still effective at higher engine speeds. This study demonstrates that copper groundstraps with optimal coil turns effectively reduce harmful emissions and improve combustion in small motorcycles, offering a pathway to more environmentally friendly ignition systems.

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