Minhanz, Minhanz (2020) Karakterisasi Unjuk Kerja Mesin Diesel Dual Fuel Biodiesel-Syngas Hasil Gasifikasi Limbah Kelapa Sawit dengan Variasi AFR. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Seiring dengan kenaikan jumlah penduduk yang bersamaan dengan kenaikan kebutuhan energi diperlukan pengganti sumber energi fosil yang jumlahnya terbatas. Salah satu alternatif yang dilihat sebagai alternatif yang menjanjikan dalam segi kelimpahannya dan potensi untuk diolah menjadi sumber energi yaitu biomassa. Biomassa yang berpotensi untuk diolah menjadi sumber energi alternatif di Indonesia sangat beragam, salah satunya adalah limbah kelapa sawit. Biomassa untuk diaplikasikan pada motor pembakaran dalam perlu pengembangan lanjutan maka akan dilakukan penelitian mengenai aplikasi sistem dual fuel gas hasil gasifikasi biomassa yang berasal dari limbah kelapa sawit dengan bahan bakar biodiesel yang berasal dari kelapa sawit. Penelitian bertujuan untuk menemukan optimasi antara AFR dengan jumlah gas tersubtitusi dengan bantuan blower pada intake. Penelitian ini dilakukan secara ekspermental dengan proses pemasukan aliran syngas yang dihasilkan gasifier downdraft limbah kelapa sawit ke dalam intake dari mesin diesel yang dihubungkan ke generator secara langsung. Syngas dialirkan secara langsung dari reaktor menuju mixer pada saluran intake dari mesin diesel. Pengujian dilaksanakan dengan putaran mesin konstan pada 2000RPM dengan pembebanan listrik yang bervariasi dimulai dari 500 watt hingga 7000 watt dengan interval 500 watt. Data-data yang akan diukur pada penelitian yaitu waktu konsumsi bahan bakar biodiesel 10ml, arus dan tegangan listrik dan temperatur operasi yang meliputi gas buang, mesin diesel, oli mesin, serta radiator untuk mendapatkan unjuk kerja sistem dual fuel syngas-diesel dengan gasifier downdraft limbah kelapa sawit.
Hasil yang didapat dari penelitian ini adalah pada pembebanan maksimal sistem dual-fuel biodiesel dan syngas dapat mengurangi konsumsi biodiesel sebesar 43,71% dari kondisi single-fuel. Nilai specific fuel consumption (sfc) biodiesel rata-rata pada AFR tertinggi mengalami kenaikan sebesar 88.56% dibandingkan single-fuel. Nilai efisiensi termal sistem dual-fuel AFR tertinggi mengalami penurunan rata-rata sebesar 33,74% dari standar biodiesel single-fuel. Kondisi operasi mesin mengalami kenaikan suhu pada suhu oli rata-rata sebesar 5,72%, radiator rata-rata sebesar 2,33%, mesin rata-rata sebesar 5,07 % dan gas buang rata-rata sebesar 9,65% pada pengoperasian sistem dual fuel.
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Population growth will be followed by growth in energy consumption to sastify population needs, as petroleum as energy source’s stock keeps thinning humanity needs alternative energy source. One of alternatives that considered promising from their avability and potency as source of energy are biomass. Oil palm waste is considered highly potential to be used as alternative energy source, aside from high variations of biomass which can be used as energy source in Indonesia. Biomass application for internal combustion engine needs continuous research then research about application from dual fuel sistem with gas produced by gasification process of palm oil waste combined with biodiesel derived from palm oil. Research is done experimentally with syngas flow produced by gasifier downdraft from palm oil waste directly to mixer at intake of diesel engine which is directly connected to a generator. Testing done by running the diesel engine at 2000 RPM constantly with varied electrical load starting from 500 watt to 7000 watt with 500 watt interval. Measured datas from testing are fuel consumption from biodiesel at 10ml, current and voltage, and operating temperatures such as exhaust, diesel engine, engine oil, and radiator to describe performance of dual fuel syngas-diesel with downdraft gasifier using palm oil waste. The results obtained from this research are on maximum loading of the dual-fuel biodiesel system and syngas can reduce biodiesel consumption of 43,71% of single-fuel conditions. The average specific fuel consumption (SFC) biodiesel rate of the highest AFR increased by 88.56% compared to single-fuel. The thermal efficiency value of the highest AFR dual-fuel system suffered an average decrease of 33.74% of the standard single-fuel biodiesel. The Operating condition of the machine has increased temperature at an average oil temperature of 5.72%, average radiator at 2.33%, average engine of 5.07% and average exhaust gas of 9.65% in dual fuel system operation.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSM 621.436 Min k-1 2020 |
| Uncontrolled Keywords: | diesel dual fuel, syngas, biodiesel, AFR, kelapa sawit |
| Subjects: | T Technology > TJ Mechanical engineering and machinery > TJ799 Diesel motor--Electronic control. T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1001 Production of electric energy or power |
| Divisions: | Faculty of Industrial Technology > Mechanical Engineering > 21201-(S1) Undergraduate Thesis |
| Depositing User: | Minhanz Minhanz |
| Date Deposited: | 05 Mar 2025 02:58 |
| Last Modified: | 05 Mar 2025 02:58 |
| URI: | http://repository.its.ac.id/id/eprint/73893 |
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