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Sugeng Hadi Susilo
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INDONESIA
Journal of Evrimata: Engineering and Physics
Published by PT. ELSHAD TECHNOLOGY INDONESIA
ISSN : -     EISSN : 30251265     DOI : https://doi.org/10.70822/journalofevrmata.vi
Core Subject : Science, Engineering,
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT
- Engineering (miscellaneous) - Civil and Structural Engineering - Electrical and Electronic Engineering - Mechanical Engineering - Chemical Engineering - Physics - Computer Science - Energy
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 32 Documents
 1   2   3   4 
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.

Page 4 of 4 | Total Record : 32

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