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All Journal Jurnal Pendidikan Teknik Mesin Rekayasa: Jurnal Penerapan Teknologi dan Pembelajaran JITEK (Jurnal Ilmiah Teknosains) Automotive Science and Education Journal Surya Abdimas Journal of Baja Health Science Nuras : Jurnal Pengabdian Kepada Masyarakat Panthera : Jurnal Ilmiah Pendidikan Sains dan Terapan Shibyan: Jurnal Pendidikan Guru Madrasah Ibtidaiyah Jurnal Inovasi Mesin Journal of Mechanical Engineering Learning Jurnal Abdi Negeri
Ahmad Roziqin, Ahmad
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Engineering Environmental Science Health Professions Immunology & microbiology Mathematics Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Veterinary Other

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Effect of Dual External Exhaust System with Activated Charcoal and Reheater on Diesel Engine Exhaust Emissions muhammad riyadi, muhammad riyadi; Septiyanto, Angga; Wijaya, Burhan Rubai; Roziqin, Ahmad
Jurnal Inovasi Mesin Vol. 6 No. 1 (2024): APRIL 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jim.v6i1.10229

Abstract

The increase in the mass and widespread use of diesel engines can lead to an increase in exhaust emissions, which can have a negative impact on the environment and human health with an increase in the number of vehicles and activities in workshops and test sites, there is a need to minimize the emission of exhaust gases during the process, The need for additional alternative methods that can help reduce emissions in places where there are potentially many vehicles in vehicle repair shops vehicle repair shops, at vehicle test sites and light vehicle practice places of automotive vocational high schools,, the development of additional equipment that is attached or added to an object without changing from that object or   after treatment tools It is still rarely found, especially in ordinary workshops, even official workshops are still uneven and not optimal, reducing exhaust gas levels when the vehicle stops or is static. This study uses an experimental method by making after treatment tools in the form of dual external exhaust systems that are attached to vehicles during emission testing and testing that emit smoke or vehicle exhaust emissions as an alternative effort in handling vehicle emissions, especially diesel engines. The tool in the form of a dual external exhaust system with activated charcoal and a reheater with temperature variations from the reheater at temperatures of 100 °C, 150 °C, and 250 °C is used in conventional diesel vehicles and common rail diesel vehicles. Tests are taken 3 times on each specimen/variation.  The results of this study show that first, there is an effect of dual external exhaust systems with activated charcoal and reheater on the exhaust gas emissions of conventional diesel engines, the effect obtained is a decrease in CO emission results from 0.47 to 0.10 with a percentage decrease of 78% and Opacity from 82 to 46 with a percentage of 44%. Then the second is the influence of dual external exhaust systems with activated charcoal and reheaters on the exhaust gas emissions of common rail type diesel engines. The effect obtained was a decrease in CO emission results from 0.05 to 0.01 with a percentage decrease of 80% and Opacity from 32 to 23 by 28%
Penerapan Teknologi Forged Carbon Compression Split Moulding (FCCSM) untuk Mendukung Industri Hijau dan Zero Waste pada UKM Komponen Berbahan Karbon Fiber Roziqin, Ahmad; Hapsoro, Bayu Bagas; Rohman, Shohihatur
Nuras : Jurnal Pengabdian Kepada Masyarakat Vol. 5 No. 4 (2025): October
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/nuras.v5i4.730

Abstract

The use of carbon fiber (carbon fiber reinforced plastic) in the automotive component industry produces significant waste, reaching 15-20% of the total raw materials. The community service partner, BPM Carbon Works Semarang, previously handled this waste by incineration, which caused environmental and economic problems. This community service program aims to address these problems through the application of Forged Carbon Compression Split Molding (FCCSM) technology. The methods used include lectures, demonstrations, hands-on practice, and assistance in designing two- and four-part split molds, as well as processing carbon fiber waste into commercially valuable products. The results of the activity show that the amount of partner waste is reduced from 20% to 5%, and partner understanding increases significantly with N-Gain scores of 0.73 and 0.75 (high category). In addition, partner profits increase by 15%. This program not only solves environmental problems, but also empowers the partner's economy, in line with the achievement of sustainable development goals (SDGs). Thus, it can be concluded that FCCSM technology is effective in achieving a zero-waste industry, and ongoing mentoring and collaboration with local governments are recommended.
Analisis Pengujian Kebisingan dan Emisi Gas Buang pada Sepeda Motor Honda 110 cc Menggunakan Knalpot AHLM (Adaptive High-Performance, Low-Pollution Muffler) Putra, Ni’mal Maula; Roziqin, Ahmad; Naryanto, Rizqi Fitri; Septiyanto, Angga; Maulana, Sonika; Rohman, Shohihatur
Panthera : Jurnal Ilmiah Pendidikan Sains dan Terapan Vol. 5 No. 4 (2025): October
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/panthera.v5i4.708

Abstract

The high levels of air pollution and noise from motor vehicles cause negative impacts on the environment and health. Innovation in exhaust systems is needed to address this issue. This study aims to analyze the effect of different exhaust types on noise levels and exhaust gas emissions in a Honda 110 cc motorcycle. The independent variable in this study is the type of exhaust (standard, free flow, and AHLM), while the dependent variables include noise level (dB) and emissions of carbon monoxide (CO) and hydrocarbons (HC). The control variables include measurement distance, engine operating temperature (80°C to 90°C), and fuel type (RON 90). The research method uses a quantitative experimental approach with a sound level meter to measure noise and a gas analyzer for exhaust emissions. Data analysis was performed using the Kruskal-Wallis test to determine differences among exhaust variations. The statistical test results showed no significant difference (p > 0.05) in noise levels and exhaust emissions among the three types of exhaust. However, descriptively, the AHLM muffler performed best, reducing noise by up to 5.88% compared to free flow, and decreasing CO emissions by 17% and HC by 1%. This study is limited to testing one type of motorcycle and laboratory conditions, so the results do not yet represent actual traffic conditions. Thus, the AHLM muffler has the potential to be an adaptive exhaust system innovation that is more environmentally friendly and effective in reducing noise and motor vehicle emissions.
Analisis Pengujian Konsumsi Bahan Bakar dan Performa pada Sepeda Motor Honda 110 cc Menggunakan Knalpot AHLM (Adaptive High-Performance, Low-Pollution Muffler) Fayisa, Fadhil; Roziqin, Ahmad; Naryanto, Rizqi Fitri; Septiyanto, Angga; Maulana, Sonika; Rohman, Shohihatur
Panthera : Jurnal Ilmiah Pendidikan Sains dan Terapan Vol. 5 No. 4 (2025): October
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/panthera.v5i4.709

Abstract

Motor vehicle emissions and energy efficiency are key concerns in developing environmentally friendly automotive technologies, particularly for small-capacity motorcycles, which remain the dominant mode of transportation in Indonesia. This study aims to analyze the effect of using the AHLM (Adaptive High-Performance, Low-Pollution Muffler) on fuel consumption and engine performance in a Honda 110 cc motorcycle. The research employed a comparative experimental method using three types of exhaust systems: standard, free flow, and AHLM. Tests were conducted using an engine dynamometer to measure torque and power, and a fuel consumption tester to record the time required to consume 10 ml (0.0074 kg) of fuel, calculated using the conversion formula m = (V_ml / 1000) × ρ, at three engine speeds: 1500 rpm, 2500 rpm, and 3500 rpm. The results show that the free flow exhaust produced the highest torque and power, at 10.9 Nm and 11.7 HP at 9000 rpm, respectively, but with higher fuel consumption. Conversely, the AHLM exhaust demonstrated better fuel efficiency, with consumption rates of 0.083 kg/h at 1500 rpm, 0.317 kg/h at 2500 rpm, and 0.416 kg/h at 3500 rpm, closely matching the efficiency of the standard exhaust. Although its peak power was slightly lower, the AHLM maintained stable torque and efficient combustion across all engine speeds. In conclusion, the AHLM exhaust system provides an optimal balance between performance and energy efficiency, offering potential as an adaptive exhaust technology that is both effective and environmentally friendly for small-capacity motorcycles.
Perancangan Mesin Pengolah Limbah Sabut Kelapa Bernilai Ekonomis Prasetiyo, Budi; Baroroh, Niswah; Roziqin, Ahmad
Jurnal Abdi Negeri Vol 1 No 2 (2023): September 2023
Publisher : Informa Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63350/jan.v1i2.7

Abstract

Limbah sabut kelapa yang selama ini tidak dimanfaatkan dan hanya dibakar dapat diolah menjadi produk bernilai ekonomis. Pengolahan limbah sabut kelapa perlu dilakukan dengan bantuan suatu mesin. Pada pengabdian ini di rancang suatu mesin pengolah limbah sabut kelapa menjadi produk berupa serat sabut bernilai ekonomis. Metode yang digunakan yaitu mulai dari analisis kebutuhan, kemudian perancangan desain alat, pengembangan alat, pengujian dan implementasi. Pada analisis kebutuhan dilakukan observasi untuk penggalian informasi mengenai spesifikasi alat yang dibutuhkan. Selanjutnya dilakukan desain model secara 3 dimensi. Pengembangan alat dilakukan di workshop. Selanjutnya dilakukan pengujian dan di implementasikan. Hasil yang diperoleh yaitu berupa desain konsep alat serta pengembangan mesin pengolah sabut yang baru.
Co-Authors Abdurahman Abdurrahman Amron, Husni Angga Septiyanto Arimaz Hangga, Arimaz Ayub Budhi Anggoro, Ayub Budhi Bayu Bagas Hapsoro, Bayu Bagas Budi Prasetiyo, Budi Dony Hidayat Al-Janan Fayisa, Fadhil Fitriyanto, Piyan Hadromi - Hakim, Fa’iq Taufiqul Herminarto Sofyan Imanu Danar Herunandi Jatsiah, Anisa Nur Karsan, Karsan Khoirudin Fathoni, Khoirudin Kriswanto Kriswanto, Kriswanto Linardita Ferial, Linardita M. Burhan Rubai Wijaya muhammad riyadi, muhammad riyadi Mujaki, Ahmad Nia Kurniatillah Niswah Baroroh Purnama, Hendrik Putra, Ni’mal Maula Ramelan Ramelan Rizqi Fitri Naryanto Rohman, Shohihatur Saputro, Wahyu Adi Septiyanto, Angga Sonika Maulana Sudirja, Andri Marta Susanto, Nugroho Fajar Suwahyo - Wahyu Wibowo Wijayanto, Bagus Wiranto, Akhmad