Dzakwan, Atsil (2019) Analisa Pengaruh Variasi Diameter Injektor Gas Terhadap Performa Mesin Dual Fuel Berbasis Simulasi. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Pengembangan mesin diesel berbahan bakar ganda atau Dual Fuel Engine banyak dilakukan oleh berbagai pihak sebagai bentuk solusi karena semakin menipisnya minyak bumi di dunia. Sistem kerja dari Dual Fuel Engine adalah memasukkan BBG (Bahan Bakar Gas) ke dalam ruang bakar bersamaan dengan udara pada saat langkah hisap di intake manifold. BBG yang digunakan adalah CNG (Compressed Natural Gas). Pada saat proses pencampuran bahan bakar gas dan udara didalam ruang bakar, seringkali menjadi penyebab ketidak sempurnaan proses pembakaran Dual Fuel Engine yang mengakibatkan performa mesin sedikit menurun. Tujuan dari penelitian ini adalah dengan mengubah geometri injektor gas bahan bakar gas dan udara apakah bercampur dengan baik serta pengaruh mengubah geometri injektor gas terhadap performa pada mesin dual fuel. Penelitian ini dilakukan dengan metode analisa numerik dan simulasi flow. Dengan menggunakan software yaitu solidwork flow untuk mengetahui homogen antara bahan bakar gas dengan udara dan analisa numerik untuk mengetahui performa mesin dual fuel antara lain adalah daya, torsi, BMEP, SFOC, dan Effisiensi thermal. Hasil yang telah diperoleh pada penelitian ini yaitu untuk beban penuh dari simulasi dengan menggunakan injektor gas diameter 2.5 mm menghasilkan flow antara bahan bakar gas dan udara tercampur dengan baik di ruang bakar serta menghasilkan kinerja mesin dual fuel yang lebih baik dibanding dengan injektor gas diameter 3, 2, 1.5 dan 1 mm. Serta performa yang dihasilkan oleh mesin dual fuel meningkat hingga pada beban maksimum dengan menggunakan injektor diameter 2.5 mm menghasilkan Daya sebesar 4.384 Kw, Torsi 18.951 Nm, BMEP 4.835 bar, SFOC 427.868 gr/Kwh, Effisiensi thermal 18.665%.
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The development of Dual Fuel Engine diesel engines is made by various parties as a form of solution because of the depletion of petroleum in the world. The working system of Dual Fuel Engine is to incorporate CNG (fuel Gas) into the fuel chamber along with the air during a suction step in the intake manifold. CNG (Compressed Natural Gas) is used. During the process of mixing gas and air in the combustion chamber, it is often the cause of the imperfections of the Dual Fuel Engine burning process resulting in a slightly decreased engine performance. The purpose of the study is to alter the geometry of the gas and air fuel gas injector Whether it blends well as well as the effect of changing the geometry of gas injector to performance on dual fuel machines. This research is done by numerical analysis and flow simulation methods. Using the software that is solidwork flow to know the homogeneous of gas with air fuel and numerical analysis to determine the performance of dual fuel engines, including power, Torque, BMEP, SFOC, and thermal effisicence. The results that have been obtained in this research are for the full load of the simulation using a gas injector diameter of 2.5 mm resulting in a flow between the fuel gases and air well blended in the fuel chamber and produce dual fuel engine performance Better than the gas injector diameter of 3, 2, 1.5 and 1 mm. As well as the performance produced by the dual fuel engines increased to the maximum load by using the injector diameter of 2.5 mm generating power at 4.384 Kw, torque 18.951 Nm, BMEP 4.835 Bar, SFOC 427.868 gr/KWH, thermal Effisiensi 18.665%.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSSP 621.436 Dza a-1 2019 |
| Uncontrolled Keywords: | Dual Fuel Engine, Injektor, Performa, Simulasi Flow |
| Subjects: | T Technology > TJ Mechanical engineering and machinery T Technology > TL Motor vehicles. Aeronautics. Astronautics |
| Divisions: | Faculty of Marine Technology (MARTECH) > Marine Engineering > 36202-(S1) Undergraduate Thesis |
| Depositing User: | Atsil Dzakwan |
| Date Deposited: | 25 Jun 2024 08:26 |
| Last Modified: | 25 Jun 2024 08:26 |
| URI: | http://repository.its.ac.id/id/eprint/69475 |
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