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CITRONELLA OIL AS BIOADDITIVES ON SI ENGINE PERFORMANCE CHARACTERISTICS Alfian, Devia; Farhani, Amna Citra; Supriyadi, Didik; Prahmana, Rico Aditia; Silitonga, Dicky J
Jurnal Rekayasa Mesin Vol. 14 No. 3 (2023)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v14i3.1284

Current dynamics of world energy supply have driven various innovations by the industry as well as research communities. Fossil fuels, although experiencing a declining interest due to sustainability issues, remain undeniably crucial since they are nearly irreplaceable in some sectors including electricity generation, it is necessary to continuously establish efforts to improve efficiency of those kinds of fuel. In this work, the authors evaluate the potential of locally sourced essential oils, namely citronella, as a fuel additive in a vision of raising the fuel economy of gasoline RON 90. Citronella oil was selected based on a positive hypothesis deduced from its chemical properties, as mentioned in multiple published works. Tests were made on a generator-set powered by gasoline engine using the mixture of RON 90 and citronella oil of various concentrations as the fuels. In addition, a commercial synthetic additive was also tested alongside the essential oil to provide a comparative figure. Meanwhile other investigators suggest a favorable effect of essential oils, our results show that citronella oil additions lead to higher fuel consumption at the same power level. A similar negative effect was also demonstrated by the synthetic additive. The only sector showing positive results is in terms of exhaust temperature where experiments with citronella additives create lower exhaust temperature as compared to pure gasoline and synthetic additives. However, rooms for innovation remain open by exploring other variables such as higher additive concentrations or combining different kinds of essential oils.

Penerapan Sistem Monitoring Kolam Ikan Berbasis Internet Of Things Utari, Ni Wayan Arya; Fil’aini, Raizummi; Mufidah, Zunanik; Farhani, Amna Citra; Kusmali, Muh; Gumaran, Setyadi; Harmiansyah, Harmiansyah
ABDIMASKU : JURNAL PENGABDIAN MASYARAKAT Vol 8, No 1 (2025): JANUARI 2025
Publisher : LPPM UNIVERSITAS DIAN NUSWANTORO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62411/ja.v8i1.2663

Kualitas air kolam merupakan salah satu faktor yang menentukan hasil budidaya ikan. Perubahan cuaca yang ekstrim dapat membuat suhu air berubah secara mendadak. Perubahan ini dapat memicu kematian, rendahnya fekunditas telur, rendahnya derajat pembuahan dan penetasan telur selama proses budidaya. Ikan nila merupakan jenis ikan yang sangat peka terhadap perubahan suhu air. Suhu air kolam terlalu tinggi dapat menyebabkan ikan stress sehingga menyebabkan kematian. Meningkatnya permintaan ikan nila membuat pembudidaya harus berupaya untuk meningkatkan produktivitas ikan. Penerapan sistem kontrol dan monitoring suhu air kolam dapat menjadi salah satu solusi untuk meminimalisir tingkat kematian ikan akibat kondisi lingkungan yang tidak sesuai dengan perkembangan ikan. Penerapan sistem kontrol berbasis IoT memungkinkan pembudidaya mengontrol kondisi lingkungan kolam. Hasil analisis menunjukkan bahwa adanya peningkatan pemahaman peserta mengenai teknologi IoT sebesar 8.7%, penerapan teknologi IoT di bidang pertanian dan perikanan sebesar 39.13%, penerapan mikrokontroler dan sensor monitoring kondisi lingkungan kolam sebesar 68.48%, dan perakitan modul monitoring kondisi kolam air tawar sebesar 95.65%. Berdasarkan hasil kegiatan pengabdian kepada masyarakat terdapat peningkatan yang sangat signifikan terhadap kemampuan dan pemahaman dari pembudidaya ikan nila di P4S Agro Cendikia, Bangun Rejo.

Analisis Energi Masukan – Keluaran pada Pertanian Jagung di Lampung Selatan (Studi Kasus Tanjung Bintang) Farhani, Amna Citra; Cahyani, Dwi; Satria, Arya Dwi; Hariyanto, Agus
Journal of Agricultural and Biosystem Engineering Research Vol 6 No 2 (2025): Journal of Agricultural and Biosystem Engineering Research: Regular Issue
Publisher : Program Studi Teknik Pertanian, Fakultas Pertanian, Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.jaber.2025.6.2.16032

Pertanian merupakan kegiatan yang menghasilkan energi namun tetap membutuhkan energi dalam pelaksanaannya. Jagung merupakan salah satu komoditas pertanian utama di Lampung dan Tanjung Bintang, Lampung Selatan adalah salah satu sentra produksi jagung. Penelitian mengenai energi masukan dan keluaran dalam pertanian diperlukan untuk mengetahui keefektifan penggunaan energi dan melihat gambaran daya dukung lingkungan sekitar. Analisis energi masukan dan keluaran dari suatu proses merupakan salah satu tahapan dalam audit energi. Berdasarkan hasil analisis, energi masukan pada pertanian jagung dalam satu tahun tanam di Tanjung Bintang, Lampung Selatan adalah sebesar 56.652,56 MJ/ha dan energi keluaran bersihnya adalah sebesar 194.311,84 MJ/ha. Energi masukan paling besar adalah dari penggunaan pupuk yaitu sebesar 84%. Rasio energi pertanian jagung adalah sebesar 3.43 dan intensitas energinya adalah sebesar 5,7 MJ/kg. Berdasarkan nilai intensitas energi dan produktivitas yang dicapai, pertanian jagung ini dapat disebut telah efektif dalam penggunaan energi dan lingkungan sekitar masih mampu menopang terselenggranya pertanian di masa selanjutnya.

CITRONELLA OIL AS BIOADDITIVES ON SI ENGINE PERFORMANCE CHARACTERISTICS Alfian, Devia; Farhani, Amna Citra; Supriyadi, Didik; Prahmana, Rico Aditia; Silitonga, Dicky J
Jurnal Rekayasa Mesin Vol. 14 No. 3 (2023)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v14i3.1284

Current dynamics of world energy supply have driven various innovations by the industry as well as research communities. Fossil fuels, although experiencing a declining interest due to sustainability issues, remain undeniably crucial since they are nearly irreplaceable in some sectors including electricity generation, it is necessary to continuously establish efforts to improve efficiency of those kinds of fuel. In this work, the authors evaluate the potential of locally sourced essential oils, namely citronella, as a fuel additive in a vision of raising the fuel economy of gasoline RON 90. Citronella oil was selected based on a positive hypothesis deduced from its chemical properties, as mentioned in multiple published works. Tests were made on a generator-set powered by gasoline engine using the mixture of RON 90 and citronella oil of various concentrations as the fuels. In addition, a commercial synthetic additive was also tested alongside the essential oil to provide a comparative figure. Meanwhile other investigators suggest a favorable effect of essential oils, our results show that citronella oil additions lead to higher fuel consumption at the same power level. A similar negative effect was also demonstrated by the synthetic additive. The only sector showing positive results is in terms of exhaust temperature where experiments with citronella additives create lower exhaust temperature as compared to pure gasoline and synthetic additives. However, rooms for innovation remain open by exploring other variables such as higher additive concentrations or combining different kinds of essential oils.

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