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All Journal Scientific Contribution Oil and Gas LEMBARAN PUBLIKASI MINYAK DAN GAS BUMI
Nur Allif Fathurrahman
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Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Energy Engineering Environmental Science

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The Effect of Methanol-Gasoline (M20) and Ethanol-Gasoline (E20) Blends on Material Compatibility Nurmajid Abdurrojaq; Rizal Zaelani; Belva Adam Haley; Nur Allif Fathurrahman; Riesta Anggarani; Cahyo Setyo Wibowo; Maymuchar
Scientific Contributions Oil and Gas Vol. 45 No. 2 (2022): SCOG
Publisher : Testing Center for Oil and Gas LEMIGAS

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Alcohol has the potential to be used as an alternative to fossil fuels to reduce total emissions from spark-ignition (SI) engines. The impact of a mixture of 20% methanol and ethanol in gasoline on the compatibility of Ethylene Propylene Diene Monomer (EPDM) and polyamide materials, which are used as fuel hoses in SI vehicles, is presented in this study. The immersion test methodology was employed to study the influence of both types of alcohol on gasoline blend to compatibility properties i.e., hardness and weight change. Based on the result, EPDM and polyamide materials have different characteristics of material compatibility with E20 and M20. Tests on M20 and E20 fuel samples on EPDM material show a higher effect on hardness by 5-9% than pristine gasoline. Additionally, there was no change in the weight of the polyamide material in the RON 90, E20, and M20 test samples. However, there was a change in the hardness of the polyamide material by 6-11% in RON 90, E20, and M20 fuels. Moreover, there was no change in the FTIR spectrum, indicating that there was no dissolution of the EPDM and polyamide materials into the test fuel for 6 weeks of immersion.
Kinerja Mesin Spark Ignition (SI) Berbahan Bakar Campuran Bensin-Metanol (M-20) Dan Bensin-Etanol (E-20) Pada Variasi Nilai Oktan Yogi Pramudito; Maymuchar; Cahyo Setyo Wibowo; Riesta Anggarani; Dimaz Warahadi; Nur Allif Fathurrahman; Lies Aisyah
Lembaran Publikasi Minyak dan Gas Bumi Vol. 56 No. 2 (2022): LPMGB
Publisher : BBPMGB LEMIGAS

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Bahan bakar alkohol seperti etanol dan metanol saat ini dianggap sebagai alternatif bahan bakar yang ramah lingkungan dan dapat digunakan untuk campuran dengan bahan bakar lain. Dalam penelitian ini, etanol dan metanol dicampurkan ke dalam bensin dengan nilai RON 88 dan RON 90 menjadi E-20 dan M-20. Selanjutnya digunakan dalam sepeda motor uji dengan sistem pengapian busi empat langkah satu silinder dengan karburator untuk mendapatkan keluaran kinerja mesin seperti daya, torsi, konsumsi bahan bakar dalam satuan liter/km dan emisi gas buang untuk putaran rendah. Hasil pengujian menunjukkan bahwa daya dan torsi bahan bakar campuran E-20 lebih tinggi dibandingkan M-20, sedangkan konsumsi bahan bakar untuk variasi kecepatan 40 km/jam, 60km/jam dan 80km/jam bahan bakar campuran M-20 lebih tinggi dibandingkan E-20. Tingkat emisi CO yang dihasilkan M-20 lebih rendah dibandingkan E-20, namun tingkat emisi HC yang dihasilkan M-20 lebih tinggi dibandingkan E-20.
Co-Authors Belva Adam Haley Cahyo Setyo Wibowo Dimaz Warahadi Lies Aisyah Maymuchar Nurmajid Abdurrojaq Riesta Anggarani Rizal Zaelani Yogi Pramudito