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All Journal Jurnal Engine: Energi, Manufaktur, dan Material Jurnal Kolaborasi Sains dan Ilmu Terapan
Rifki Hermana
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Aerospace Engineering Automotive Engineering Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Prototype of a Dust Monitoring Device in the Mechanical Engineering Laboratory at PGRI University Semarang Using the GP2Y1010AU0F Sensor Rifki Hermana; Muchamad Malik; Agus Mukhtar; Andrew Joewono; Gostsa Khusnun Naufal
Jurnal Engine: Energi, Manufaktur, dan Material Vol. 8 No. 2 (2024)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v8i2.1999

Abstract

ABSTRACT This study aims to develop an accurate and real-time air quality monitoring system in the Mechanical Engineering Laboratory that provides information on the measured parameter values. The research employs an experimental approach to determine the effectiveness of variables within the experiment. The primary sensor used is the GP2Y1010AU0F Optical Dust Sensor, which operates based on infrared light to measure particulate dust concentration levels. Analysis of sensor testing results was conducted by observing variations in sensor readings, notably after trials involving tissue burnt as a dust source. The dust sensor consistently recorded an average dust concentration of 0.597 Kg/m³. Subsequently, tests were conducted using baby powder with a constant weight of 30 mg per trial. Sensor readings varied between 0.35 Kg/m³ and 0.38 Kg/m³, indicating that within the given weight range, the powder mass does not significantly impact sensor readings. Further, tests on indoor dust density, with an average concentration of 36.01 µg/m³, revealed a relatively low average dust concentration in the room during the measurement period..
Pengaruh Campuran Oli Bekas 15% dan 25% Terhadap Performa Mesin Diesel Isuzu C 190 Dimas Doni Prakoso; Rifki Hermana; Muhamad Safi'i
Jurnal Kolaborasi Sains dan Ilmu Terapan Vol. 5 No. 1.1 (2026): SPECIAL ISSUE
Publisher : Utiliti Project Solution

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69688/juksit.v5i1.1.341

Abstract

Penggunaan bahan bakar fosil dan limbah oli bekas yang mencemari lingkungan menjadi urgensi utama digalakannya substitusi bahan bakar alternatif. Penelitian ini bertujuan untuk menganalisis performa mesin diesel akibat penggunaan campuran bahan bakar biosolar dan oli bekas. Metode yang digunakan adalah eksperimental dengan objek pengujian berupa mesin diesel Isuzu C190 yang diberi perlakuan variasi campuran oli bekas sebesar 15% dan 25%, serta pengoperasian pada putaran mesin (Rpm) bertahap. Hasil pengujian pada beban 2 menunjukkan bahwa campuran oli bekas 15% menghasilkan torsi sebesar 77,28 N.m, daya keluar 27,89 HP, dan efisiensi  51,24%, sedangkan campuran 25% menghasilkan torsi 73,71 N.m, daya keluar 25,77 HP, dan efisiensi  36,44%. Dibandingkan dengan biosolar sebagai bahan bakar kontrol, kedua variasi campuran oli bekas menunjukan nilai torsi, daya keluar dan efisiensi yang lebih rendah. Diantara variasi campuran yang diuji, campuran oli bekas 15% menunjukan penurunan performa yang lebih kecil dibandingkan campuran 25%. Hasil ini menunjukan bahwa komposisi campuran oli bekas 15% memberikan performa lebih baik dibandingkan campuran 25% pada kondisi pengujian yang dilakukan. Namun, kelayakan penggunaannya sebagai bahan bakar alternatif masih memerlukan pengujian lebih lanjut, teritama terkait emisi gas buang, daya tahan mesin dan keamanan jangka panjang
Co-Authors Agus Mukhtar Andrew Joewono Dimas Doni Prakoso Gostsa Khusnun Naufal Muchamad Malik Muhamad Safi'i