Kaji Eksperimen Pengaruh Variasi Temperatur Bahan Bakar B50 Terhadap Unjuk Kerja Mesin Diesel Satu Silinder

Ilahi, Hasybi Anugerah (2021) Kaji Eksperimen Pengaruh Variasi Temperatur Bahan Bakar B50 Terhadap Unjuk Kerja Mesin Diesel Satu Silinder. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Ketersediaan bahan bakar solar fosil di Indonesia seiring penggunaan di sektor industri, transportasi dan sistem pembangkit semakin terbatas. Bahan bakar fosil bukan sumber energi berkelanjutan (sustainable energy), sehingga untuk mengurangi ketergantungan pada bahan bakar fosil serta mengurangi dampak buruk pada lingkungan perlu dilakukan penelitian terhadap sumber energi, terutama yang terbarukan dan ramah lingkungan. Pemerintah telah menggalakkan program B20 (20% biodiesel 80% solar) dan B30 (30% biodiesel dan 70% solar) mengingat Indonesia merupakan pengekspor kelapa sawit terbesar di dunia.
Namun masalah yang dihadapi pada penerapan biodiesel B50 dijumpai dengan viskositas dan densitas biodiesel masih terlalu tinggi jika dibandingkan dengan solar sehingga proses atomisasi menjadi kurang baik. Proses pemanasan bahan bakar merupakan salah satu metode untuk menurunkan presentase kedua properties bahan bakar tersebut. Penelitian ini dimulai dengan dilakukan pengujian unjuk kerja mesin dengan penambahan sistem pemanas bahan bakar menggunakan elemen pemanas yang diatur oleh thermostat digital.) mulai dari temperatur (28℃, 50℃, 60℃, dan 70℃). Pengujian dilakukan pada mesin yang dijaga pada putaran 3000 rpm dengan pembebanan dimulai dari 1000 watt sampai dengan 5000 watt. Parameter yang diukur adalah, arus listrik, dan waktu konsumsi bahan bakar.
Dari hasil pengujian, diperoleh unjuk kerja terbaik pada temperatur 50℃ dengan data pada beban 4000W yakni; daya 5.760 W; BMEP 547,545 kPa 18,222 N.m.; BSFC 0,2702 kg/kW.jam; BTE 31,163%.
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The availability of fossil diesel fuel in Indonesia along with its use in the industrial sector, transportation and power generation systems is increasingly limited. Fossil fuels are not sustainable energy sources, so to reduce dependence on fossil fuels and reduce the negative impact on the environment, it is necessary to conduct research on energy sources, especially renewable and environmentally friendly ones. The government has promoted the B20 (20% biodiesel 80% diesel) and B30 (30% biodiesel and 70% diesel) programs considering that Indonesia is the world's largest exporter of palm oil. However, on the other hand, B50 biodiesel fuel actually contains higher levels of biodiesel, but there is still a problem.
The problems faced are mainly caused by the viscosity and density of biodiesel which are too high when compared to diesel. This characteristic causes the atomization process to be less good, so that the process of mixing fuel with air becomes less homogeneous. Preheating the fuel is one method to reduce the percentage of the two fuel specifications. This experiment begins with testing the engine performance with the addition of a fuel heating system using a heating element that is regulated by a digital thermostat starting from temperatures (28℃, 50℃, 60℃, dan 70℃). Tests were carried out on engine that were maintained at 3000 rpm with loading starting from 1000W up to 5000W. Parameters measured are electric current, and fuel consumption time.
From the test results, obtained the best performance at a temperature of 50℃ with data at 4000W load, namely; power 5,760 W; BMEP 547,545 kPa 18,222 N.m.; BSFC 0.2702 kg/kW.hour; BTE 31.163%

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Kata Kunci : B50, Pemanasan bahan bakar. Atomisasi, Spesifikasi bahan bakar, Unjuk kerja mesin diesel ================================================================================================================== Keywords : B50 , CPO, fuel preheating, atomization, fuel specification, engine diesel performance
Subjects:	T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL229.D5 Diesel automobiles T Technology > TP Chemical technology > TP359.B46 Biodiesel fuels.
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Mechanical Engineering
Depositing User:	Hasybi Anugerah Ilahi
Date Deposited:	12 Aug 2021 07:47
Last Modified:	12 Aug 2021 07:47
URI:	http://repository.its.ac.id/id/eprint/85691

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