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All Journal Jurnal Saintifik Multidisciplinary Innovations and Research in Applied Engineering
M. Burhan Rubai Wijaya
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PEMANFAATAN LIMBAH KULIT KOPI MENJADI BRIKET SEBAGAI ENERGI ALTERNATIF RAMAH LINGKUNGAN DI DESA NGAREANAK M. Burhan Rubai WIjaya; Miftahhul Muqorobiin; citra, Sevira Naza Anatasya; Syafira Prameswari Ardhani
Jurnal Saintifik (Multi Science Journal) Vol 23 No 3 (2025): SEPTEMBER
Publisher : Fakultas Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58222/js.v23i3.516

Abstract

Limbah kulit kopi di Desa Ngareanak, Kecamatan Singorojo, Kabupaten Kendal, sebagian besar belum dimanfaatkan dan cenderung menumpuk atau dibakar sehingga berpotensi mencemari lingkungan. Melalui program pengabdian masyarakat, Tim GIAT KKN UNNES 12 memperkenalkan pemanfaatan limbah kulit kopi menjadi briket sebagai energi alternatif ramah lingkungan. Kegiatan meliputi survei, percobaan pembuatan, serta pelatihan kepada masyarakat. Hasil menunjukkan bahwa kelompok Ibu PKK mampu memproduksi briket dengan nilai kalor tinggi, nyala stabil, dan residu rendah. Inovasi ini berpotensi meningkatkan keterampilan sekaligus membuka peluang usaha energi
UTILIZATION OF COFFEE HUSK WASTE INTO BRIQUETTES AS AN ENVIRONMENTALLY FRIENDLY ALTERNATIVE ENERGY SOURCE IN NGAREANAK VILLAGE M. Burhan Rubai Wijaya; Muqorobiin, Miftahhul; Sevira Naza Anatasya; Syafira Prameswari Ardhani
Jurnal Saintifik (Multi Science Journal) Vol 23 No 3 (2025): SEPTEMBER
Publisher : Fakultas Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58222/js.v23i3.517

Abstract

In Ngareanak Village, Singorojo Sub-district, Kendal Regency, most coffee husk waste remains unused, often piled up or burned, causing potential environmental pollution. Through a community service program, the GIAT KKN UNNES 12 team introduced the utilization of coffee husk waste into briquettes as an eco-friendly alternative energy source. The activities included surveys, experiments, and training for local communities. Results showed that the PKK women’s group successfully produced briquettes with high calorific value, stable combustion, and low ash residue. This innovation is expected to enhance community skills and create opportunities in renewable energy-based enterprises.
Performance and Emission Analysis of Motorcycles Using Pertalite-Methanol Fuel Blends Lutanto, Agus; M. Burhan Rubai Wijaya; Hadromi
Multidisciplinary Innovations and Research in Applied Engineering Vol. 2 No. 1 (2025)
Publisher : Akademi Inovasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70935/vv71xa86

Abstract

The increasing use of motorcycles necessitates the development of more efficient and environmentally friendly fuel alternatives. This study examines the effect of mixing methanol with pertalite fuel on engine performance and exhaust emissions in carburetor motorcycles. The fuel variations tested include M0, M5, M10, M15, M20, and M25. Performance testing was conducted using a dynotest, while exhaust emissions were measured with an emission gas analyzer. The results indicate that M25 produces the highest torque and power output, particularly in the 2500–8500 rpm range. Additionally, M25 significantly reduces HC and CO emissions, with HC at 108.33 ppm vol and CO at 0.19% vol, compared to M0. The findings suggest that methanol-enhanced fuel improves combustion efficiency, enhances engine performance, and lowers emissions. Thus, methanol-pertalite blends offer a promising alternative for improving carburetor motorcycle performance while reducing environmental impact.
Co-Authors citra, Sevira Naza Anatasya Hadromi Lutanto, Agus Miftahhul Muqorobiin Muqorobiin, Miftahhul Sevira Naza Anatasya Syafira Prameswari Ardhani