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Farid majedi
Politeknik Negeri Madiun
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Pelatihan Engine Management System untuk Meningkatkan Kompetensi dan Kesiapan Kerja Guru dan Siswa SMK YP 17-1 Madiun Farid Majedi; Ismail Kholid; Kholis Nur Faizin; Novi Indah Riani; Noorsakti Wahyudi; Achmad Aminudin; Febrian Walid Awalludin
JURPIKAT Vol 7 No 3 (2026)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/jurpikat.v7i3.3380

Abstract

Kegiatan pengabdian kepada masyarakat ini bertujuan meningkatkan kompetensi guru dan siswa SMK YP 17-1 Madiun dalam memahami Engine Management System (EMS) dan penggunaan scan tool sebagai alat diagnosis kendaraan modern. Metode pelaksanaan meliputi sosialisasi, pelatihan teori dan praktik, penerapan teknologi, pendampingan, serta evaluasi melalui pretest dan posttest. Pelatihan diikuti oleh 20 siswa dan 4 guru dengan pendekatan learning by doing. Hasil kegiatan menunjukkan peningkatan kompetensi peserta, ditandai dengan kenaikan rata-rata nilai teori dari 56,33 menjadi 84,50 (±50%) dan nilai praktik dari 50,00 menjadi 77,50 (±55%). Selain itu, dilakukan penyerahan ThinkCar ThinkSafe OBD-II Bluetooth Vehicle Diagnostic Tool dan OBD-II Extension Cable sebagai media pembelajaran untuk mendukung keberlanjutan praktik di sekolah. Program ini terbukti efektif dalam meningkatkan kompetensi diagnosis kendaraan berbasis EMS dan mendukung kesiapan lulusan sesuai kebutuhan dunia usaha dan dunia industri (DUDI).
Effect of pyrolysis temperature and natural zeolite on bio-oil production from polypropylene, durian peel, and brem waste in a rotary kiln Farid Majedi; Eigi Ramadani; Fredy Susanto
Jurnal Polimesin Vol 24, No 4 (2026): August
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v24i4.9038

Abstract

The increasing generation of plastic and biomass waste presents environmental challenges while creating opportunities for renewable fuel production. Pyrolysis provides a potential route for converting mixed waste into fuel products, but the co-pyrolysis of polypropylene (PP), durian peel, and brem waste using natural zeolite in a rotary kiln remains insufficiently explored. This study investigates the effects of pyrolysis temperature and natural zeolite addition on the yield and fuel properties of bio-oil produced from these mixed waste streams. Experiments were conducted in an electrically heated rotary kiln using a feedstock mixture of 50 wt.% PP, 25 wt.% durian peel, and 25 wt.% brem waste with natural zeolite. Pyrolysis temperatures of 250, 300, 400, 500, and 600°C were evaluated, and bio-oil yield, density, and calorific value were measured. The results showed that temperature affected both bio-oil yield and fuel properties. The highest bio-oil yield of 284 mL and the lowest density of 0.752 kg L⁻¹ were obtained at 500°C, whereas the highest calorific value of 55.341 MJ kg⁻¹ was obtained at 400°C. Increasing the temperature to 600°C reduced liquid yield, which was attributed to secondary cracking and increased gas formation. Overall, the results indicate that 400–500°C provided a suitable operating range for obtaining bio-oil with favorable yield and fuel properties from the mixed waste feedstock.
Co-Authors Abdul Aziz Achmad Aminudin Agus Choirul Arifin Agus Susanto Ahmad Kudhori Alfiq Adi Mahsu Ayuk Rima Dhani Bias Nur Elmira Edi Munarwan Edi Murnawan Eigi Ramadani Fakhrudi, yoga ahdiat Febrian Walid Awalludin Fredy Susanto imam basuki Indah Puspitasari Ismail Kholid Kholis Nur Faizin Muhammad Taali Nana Ainiya Khalidah NANANG ROMANDONI Noorsakti Wahyudi Novi Indah Riani Rahayu Mekar Bisono Ramadhana Eka Wicaknono Septian Nurfaranto Shofyan Dwi Saputro Sundaru Guntur Wibowo Titania Nur Cahyani Wahyu Pribadi Yuli Prasetyo