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All Journal Transmisi Briliant: Jurnal Riset dan Konseptual Journal of Energy, Mechanical, Material and Manufacturing Engineering JURNAL FLYWHEEL Jurnal Pengabdian Multidisiplin Jurnal Pepadu Indonesian Journal of Advanced Research (IJAR) Jurnal Polimesin Evrimata: Journal of Mechanical Engineering
Yuniarto Agus Winoko, Yuniarto Agus
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Religion Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Other

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ESP 8266-Based Car Battery Current and Voltage Monitoring Design Reynaldo; Winoko, Yuniarto Agus
Evrimata: Journal of Mechanical Engineering Vol. 01 No. 02, 2024
Publisher : PT. ELSHAD TECHNOLOGY INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70822/evrmata.vi.43

Abstract

Fluctuations in engine speed can make motorists unaware of the actual battery voltage and current, even though the battery voltage should be above 85% of the maximum voltage. Typically, the battery voltage for petrol engines is around 12.5 Volts in order to function properly. This study aims to calculate the changes in current and voltage at various loads when the engine rotation is at 1000, 1500, 2500, 3000, 3500, and 4000 rpm. Measurements were made using the ESP8266 microcontroller and compared with measurements using a multimeter. Data was taken by measuring the current and voltage of the battery when the engine was loaded by AC, audio, and lights. The test results show that the voltage measured with a multimeter tends to be higher than that measured with a smartphone. The voltage measured by the multimeter increased from 1000 to 2000 Rpm, decreased at 2500 Rpm, and increased again up to 4000 Rpm. When measured with a smartphone, the voltage tends to be stable from 1500 to 3000 Rpm, and then increases at 3500 and 4000 Rpm. The charging system shows an increase in fulfilled electricity demand at each revolution.
The effect of copper thickness in catalytic converters on HC and CO emissions Hilmi, Albaihaqi; Winoko, Yuniarto Agus
Jurnal Polimesin Vol 23, No 6 (2025): December
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v23i6.6241

Abstract

Advances in transportation technology has significantly increases human mobility and supported economic growth, however it has also led to a rise in harmful exhaust emissions, which adversely affect air quality and contribute to climate change. To address this, it is essential to minimize exhaust emissions, one effective method being the use of catalytic converters. This study aims to investigate the effect of copper thickness, specifically variations of 0.2 mm, 0.5 mm and 0.7 mm as the basic material of catalytic converters. Experimental research using Honda Vario 125 motorized vehicles operating on Pertalite fuel, with emissions measured at varying engine speeds from 1500 rpm to 7000 rpm. The QROTECH QRO 401 gas analyzer was utilized to assess HC and CO exhaust emissions. The results indicate that the thickness of copper used in catalytic converters can effectively reduce CO and HC emissions. Specifically, the sample with a copper thickness of 0.7 mm demonstrated an average CO emission of 0.36% and a standard deviation of 0.0015, while the HC emission produced an average of 112 ppm with a standard deviation of 14.85.
Co-Authors Agus Setiawan Aji, Supa Kusuma AM Mufarrih Arifin, Indra Nurzainu Choirun, Mochamad Farida, Nike Nur Firmansyah, Zulfikar Rafi Hilmi, Albaihaqi Junaidi, Moh. Khoiru Zaen Nanang Khambali, Khambali Mauladhana, Achmad Fajarot Monasari, Ratna Nanang Qosim nugroho, winalda aditia Nurhadi Prasetya, Fajar Cahyo Ratna Monasari Reynaldo Rinarko, Rifqi Wisnu Ro'isatin, Umi Anis Wahyudin, Fadly Haries Walid, Achmad