Ibrahim, Faizal (2020) Studi Eksperimen Pengaruh Penyimpanan Bahan Bakar B20 Terhadap Sifat Bahan Bakar, Performa dan Emisi Mesin Diesel 4-Langkah Silinder Tunggal. Other thesis, Institut Teknologi Sepuluh Nopember.
Preview |
Text
02111440000084-Undergraduate_Thesis.pdf Download (2MB) | Preview |
Abstract
B20 merupakan bahan bakar campuran 20% biodiesel dan 80% petroleum diesel. Kandungan biodiesel tersebut menyebabkan sifat higroskopis dalam bahan bakar yaitu kecenderungan untuk menyerap air dari lingkungan. Maka penyimpanan bahan bakar B20 dalam kurun waktu yang cukup lama dapat menimbulkan lapisan antara air dan B20 sehingga memicu kemunculan kontaminan mikroba dan perubahan properties fisik maupun kimia. Perubahan tersebut dapat mempengaruhi performa dan emisi mesin diesel. Penelitian ini menggunakan bahan bakar campuran 20% biodiesel dan 80% dexlite. Media penyimpanan menggunakan tangki dengan material steel yang tetap diberi akses masuknya udara. Proses penyimpanan dilakukan dalam kurun waktu 12 minggu dengan pengambilan sampel uji pada minggu ke-0, 4, 8 dan 12. Pada setiap pengambilan sampel dilakukan 3 pengujian yang dilakukan secara paralel yaitu uji jumlah kontaminan mikroba, uji properties bahan bakar, uji performa dan emisi mesin diesel. Melalui penelitian ini didapatkan bahwa jumlah kontaminan setelah 12 minggu penyimpanan pada B20 lebih tinggi dibandingkan B0 dengan laju peningkatan masing-masing sebesar 799.900% dan 59.900%. Kandungan air dan bilangan asam pada B20 mengalami peningkatan lebih besar dibandingkan B0 dengan laju peningkatan pada B20 masing-masing sebesar 14.03% dan 100.13% dan B0 masing-masing sebesar 10,64% dan 43,51%. Sedangkan laju peningkatan densitas dan viskositas selama 12 minggu penyimpanan pada B20 lebih kecil dibandingkan B0 dengan laju masing-masing sebesar 0,12%, 3,12% pada B20 dan 0,14%, 7,35% pada B0. Untuk laju penurunan efisiensi termal dan BSFC pada B20 lebih kecil dibandingkan B0 selama proses penyimpanan bahan bakar sedangkan untuk laju penurunan emisi CO dan UHC pada B20 lebih besar dibandingkan B0.
================================================================================================================================
B20 is a mixture of 20% biodiesel and 80% petroleum diesel. Biodiesel content causes the mixture more hygroscopic which is the tendency to absorb water from the environment. Then the storage of B20 fuel over a long period of time can cause a layer between water and B20 that triggers the appearance of microbial contaminants and changes in physical and chemical properties. These changes can affect the performance and emissions of diesel engines. This research uses a mixture of 20% biodiesel and 80% dexlite. Storage media using tanks with steel material that is still given access to the entry of air. The storage process is carried out within a period of 12 weeks by taking test samples at weeks 0, 4, 8 and 12. At each sampling carried out 3 tests in parallel which is the test of the number of microbial contaminants, test fuel properties, performance and emission tests diesel engine. Through this study it was found that the amount of contaminants after 12 weeks of storage at B20 was higher than B0 with an increase rate of 799,900% and 59,900%, respectively. The water content and acid number in B20 experienced a greater increase than B0 with an increase in of B20 is 14.03% and 100.13% and of B0 is 10.64% and 43.51%. The rate of increase in density and viscosity during 12 weeks of storage at B20 is smaller than B0 with rates of 0.12%, 3.12% at B20 and 0.14%, 7.35% at B0, respectively. The rate of reduction on thermal efficiency and BSFC at B20 is smaller than B0 during the fuel storage process while the rate of reduction on CO and UHC emissions at B20 is greater than B0.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSM 621.436 Ibr s-1 2020 |
| Uncontrolled Keywords: | Biodiesel, Dexlite, B20, Mikroba, Properties Bahan Bakar, Unjuk Kerja Mesin Diesel, Emisi. |
| Subjects: | T Technology > TJ Mechanical engineering and machinery > TJ324.5 Fuel systems T Technology > TJ Mechanical engineering and machinery > TJ799 Diesel motor--Electronic control. |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Mechanical Engineering > 21201-(S1) Undergraduate Thesis |
| Depositing User: | Faizal Ibrahim |
| Date Deposited: | 05 Mar 2025 01:24 |
| Last Modified: | 05 Mar 2025 01:24 |
| URI: | http://repository.its.ac.id/id/eprint/73909 |
Actions (login required)
 |
View Item |