Prabowo, Gilang Lukito (2020) Studi Eksperimen Pengaruh Penyimpanan Bahan Bakar Biodiesel Terhadap Sifat Bahan Bakar, Performa, dan Emisi Mesin Diesel 4-Langkah Silinder Tunggal. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Kebutuhan energi dalam negeri yang terus meningkat menyebabkan impor migas Indonesia mencapai 49,1 ton pada tahun 2018. Biodiesel merupakan salah satu energi alternatif yang dapat dimanfaatkan untuk menekan jumlah impor migas. Salah satu kelebihan penggunaan biodiesel adalah rendah emisi, sehingga lebih ramah lingkungan. Namun, biodiesel memiliki sifat biodegradable yang mengakibatkan biodiesel rentan mengalami penurunan kualitas ketika disimpan dalam waktu yang lama. Sehingga, sasaran dari penelitian ini adalah mengetahui pengaruh penyimpanan biodiesel terhadap sifat bahan bakar, performa, dan emisi mesin diesel. Pada penelitian ini, digunakan bahan bakar B0, B20, dan B100 yang kemudian disimpan selama 12 minggu. Dilakukan pengujian bahan bakar pada minggu ke-0, 4, 8 dan 12 yang terdiri dari pengujian kontaminasi biologi, properties kimia, properties fisika, dan pengujian performa serta emisi mesin diesel. Kemudian dilakukan analisa komprehensif mengenai pengaruh sifat bahan bakar yang didapatkan dari pengujian terhadap hasil unjuk kerja dan emisi mesin diesel. Dari penelitian ini diperoleh hasil bahwa B100 memiliki nilai densitas dan viskositas yang lebih tinggi dibanding B20 dan B0 selama penyimpanan bahan bakar. Penggunaan B100 pada mesin diesel pun memberikan nilai efisiensi mesin yang lebih rendah dibanding B20 dan B0 selama 12 minggu penyimpanan. Namun, bila ditinjau dari persentase penurunan efisiensi termal seiring penyimpanan bahan bakar, persentase terbesar dimiliki B0 dibandingkan B20 dan B100. Penurunan efisiensi termal pada B0, B20, dan B100 masing-masing sebesar 3,77%, 1,76%, dan 1,88% setiap bulan. Di sisi lain, penggunaan B100 memberikan hasil penurunan emisi gas buang yang paling signifikan dibanding B20 dan B0 seiring masa penyimpanan. Tercatat terjadi penurunan emisi smoke, UHC, dan CO pada penggunaan B100 dengan rerata masing-masing sebesar 13,27%, 14,41%, dan 30,94% setiap bulan.
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The increasing domestic energy demand causes Indonesia's oil and gas imports to reach 49.1 tons in 2018. Biodiesel is one alternative energy that can be utilized to reduce the amount of oil and gas imports. One of the advantages of using biodiesel is low emissions, making it more environmentally friendly. However, biodiesel has biodegradable properties which results in biodiesel being susceptible to quality degradation when stored for a long time. Thus, the aim of this study is to determine the effect of biodiesel storage on fuel properties, performance, and emissions of diesel engines. In this study, B0, B20 and B100 fuels were used which were then stored for 12 weeks. Fuel testing is carried out at weeks 0, 4, 8 and 12 which consists of testing biological contamination, chemical properties, physical properties, and testing the performance and emissions of diesel engines. Then a comprehensive analysis of the effect of the fuel properties obtained from testing on the results of the performance and emissions of diesel engines. From this research, the result is that B100 has higher density and viscosity values than B20 and B0 during fuel storage. The use of B100 in diesel engines also gives a lower engine efficiency value than the B20 and B0 for 12 weeks of storage. However, when viewed from the percentage decrease in thermal efficiency with fuel storage, the largest percentage is owned by B0 compared to B20 and B100. The decrease in thermal efficiency at B0, B20, and B100 is 3.77%, 1.76% and 1.88% every month. On the other hand, the use of B100 provides the most significant reduction in exhaust emissions compared to B20 and B0 over the storage period. Noted a decrease in smoke, UHC, and CO emissions on the use of B100 with an average of 13.27%, 14.41%, and 30.94% each month.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSM 621.436 Pra s-1 2020 |
| Uncontrolled Keywords: | Biodiesel, Storage, Sifat Bahan Bakar, Performa, Emisi |
| Subjects: | T Technology > TJ Mechanical engineering and machinery > TJ799 Diesel motor--Electronic control. |
| Divisions: | Faculty of Industrial Technology > Mechanical Engineering > 21201-(S1) Undergraduate Thesis |
| Depositing User: | GILANG LUKITO PRABOWO |
| Date Deposited: | 28 Mar 2023 03:29 |
| Last Modified: | 28 Mar 2023 03:29 |
| URI: | http://repository.its.ac.id/id/eprint/73360 |
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