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Universitas Tjut Nyak Dhien
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Pengaruh Penggunaan Variasi Bahan Bakar dan Beban Kelistrikan Terhadap Kinerja Engine Diesel Safri Gunawan; Mulia Mulia; Rahma Doni; Yanuardi Gulo; Muhammad Reza Pratama; Yodi Sitohang; Sofiya Vari Zan'nah; Dery Affandi
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 4 No 1 (2025): April
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v4i1.196

Abstract

The global energy crisis has driven efforts to find alternative fuels that are efficient and environmentally friendly. One focus is testing the performance of diesel engines against variations in fuel. This study aims to analyse the effect of diesel fuel types, including Bio Solar, Dexlite, and Pertamina Dex, with cetane numbers of 48, 51, and 53, respectively, on diesel engine performance in terms of power, torque and specific fuel consumption parameters at various levels of electrical load. The method used is an experiment involving a graded electrical load test ranging from 300 to 1500 Watts. Data were collected under stationary conditions at 1500 rpm using instruments such as voltmeters, ammeters, tachometers, and fuel burettes. The results show that Pertamina Dex produces the highest power at peak load due to its high cetane number, while Bio Solar provides the highest torque due to a longer combustion delay. The highest specific fuel consumption occurs in Pertamina Dex at low loads, while Bio Solar is more efficient at low load conditions.
Greenhouse Cerdas dengan Kontrol Suhu Otomatis Berbasis IoT In Kecamatan Sunggal Yunita Pane; Wiwin Nurzanah; Irma Dewi; Arfis A; Togar Timoteus Gultom; Fadlah Sinurat; Mulia Mulia
All Fields of Science Journal Liaison Academia and Sosiety Vol. 5 No. 2: Juni 2025
Publisher : Lembaga Komunikasi dan Informasi Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58939/afosj-las.v5i2.810

Abstract

p Perkembangan pertanian presisi di Indonesia masih terkendala oleh mahalnya biaya sistem kontrol lingkungan greenhouse konvensional dan ketergantungan pada pengawasan manual Penelitian ini mengembangkan greenhouse cerdas berbasis IoT dengan struktur bambu termodifikasi nano silika dan sistem kontrol adaptif untuk mengoptimalkan produktivitas tanaman hortikultura di Kecamatan Sunggal Sumatera Utara Hasil eksperimen menunjukkan bahwa prototipe ini berhasil mempertahankan kondisi mikroklimat optimal suhu 26 5 1 2 C kelembapan 70 5 Persen dengan konsumsi energi hanya 38 5 watt melalui integrasi panel surya 150Wp Treatment nano silika 7 Persen meningkatkan ketahanan struktural bambu terhadap kelembapan sebesar 47 Persen dan mengurangi biaya material 35 Persen dibanding konstruksi baja Implementasi lapangan pada tanaman tomat menunjukkan peningkatan hasil panen 40 4 Persen 7 3 kg m dengan kualitas buah lebih baik kadar gula 5 6 Brix Analisis ekonomi mengungkap kelayakan implementasi dengan ROI 28 7 Persen dan periode pengembalian modal 3 5 tahun menjadikannya solusi berkelanjutan untuk pertanian presisi di daerah tropis p
Co-Authors Arfis A Dery Affandi Dewi, Irma Fadlah Sinurat Muhammad Reza Pratama Rahma Doni Safri Gunawan Sofiya Vari Zan'nah Togar Timoteus Gultom Wiwin Nurzanah Yanuardi Gulo Yodi Sitohang Yunita Pane