Dewantara, Iqbal Maulana (2023) Studi Eksperimen Pengaruh Sistem EGR (Exhaust Gas Recirculation) Terhadap Performa Dan Emisi Mesin Diesel Dual-Fuel Berbahan Bakar Biodiesel B-30 Dan Hidrogen. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Kebutuhan energi yang meningkat berdampak negatif terhadap lingkungan, terutama ketika kebutuhan energi didominasi oleh minyak bumi. Pembakaran bahan bakar menghasilkan emisi yang mencemari lingkungan. Sumber energi baru terbarukan diperlukan untuk mengurangi polusi dan memenuhi kebutuhan energi. Salah satu sumber energi baru terbarukan yang lebih ramah lingkungan adalah mengganti bahan bakar solar pada mesin diesel dengan biodiesel. Dimungkinkan juga untuk memadukan bahan bakar hidrogen sebagai bahan bakar bebas karbon. Namun, penggunaan bahan bakar ini meningkatkan emisi NOx yang berbahaya. Salah satu cara untuk mengurangi emisi NOx adalah dengan menggunakan sistem EGR. Penelitian ini menyelidiki kinerja dan emisi mesin diesel dual-fuel yang menggunakan biodiesel B30 dan bahan bakar hidrogen dan memvariasikan laju EGR sebesar 0%, 5%, 10%, 15%, 20%, dan 25% pada rentang beban 1000-4000watt. Hasil yang didapatkan dari penelitian menunjukkan bahwa penambahan sistem EGR menurunkan kinerja mesin, dengan variasi rasio bukaan pada 25% terjadi nilai daya, torsi dan BMEP yang minimum dibandingkan tanpa penggunaan sistem EGR, Rata-rata penurunan BTE yaitu 9.39% yang diiringi dengan peningkatan SFC rata-rata sebesar 11.43%. Dengan penambahan sistem EGR pada mesin diesel dual fuel biodiesel-hidrogen didapatkan emisi gas buang (HC, CO, dan smoke opacity) yang lebih tinggi dibandingkan tanpa menggunakan sistem EGR. Dengan laju bukaan EGR 25% didapatkan emisi smoke opacity yang meningkat pada beban rendah hingga tinggi. Dengan laju rasio bukaan EGR 25% dapat menaikkan emisi CO dan HC menjadi 0.37% dan 34 ppm. Dengan penambahan sistem EGR pada mesin diesel dual fuel biodiesel-hidrogen didapatkan emisi gas buang NOx yang lebih rendah. Dengan laju bukaan EGR rasio 25% didapatkan emisi NOx terbaik pertama pada beban rendah hingga beban tinggi.
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Increasing energy demand have a negative impact on the environment, especially when energy demand is dominated by petroleum. Burning fuel produces emissions that pollute the environment. Renewable energy sources are needed to reduce pollution and meet energy needs. One of the renewable energy sources that is more environmentally friendly is to replace diesel fuel in diesel engines with biodiesel. It is also possible to integrate hydrogen fuel as a carbon-free fuel. However, the use of these fuels increases harmful NOx emissions. One way to reduce NOx emissions is to use an EGR system. This study investigated the performance and emissions of a dual-fuel diesel engine using B30 biodiesel and hydrogen fuel and varying the EGR rate by 0%, 5%, 10%, 15%, 20%, and 25% over a load range of 1000-4000 watts.
The results obtained from the study show that the addition of the EGR system affects engine performance with the worst variation in the aperture ratio at 25%, there are minimal values of power, torque and BMEP. The average decrease in BTE is 9.39%, accompanied by an average increase in SFC of 11.43%. With the addition of the EGR system to a dual fuel biodiesel-hydrogen diesel engine, higher exhaust emissions (HC, CO, and smoke opacity) are obtained compared to without using the EGR system. With an EGR rate of 25% it increases the smoke opacity emissions gain at low to high loads. With an EGR rate of 25%, it can increase CO and HC emissions to 0.37% and 34 ppm. With the addition of the EGR system to a dual fuel biodiesel-hydrogen diesel engine, a lower NOx exhaust emission is obtained.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Mesin Diesel Dual-Fuel, Hidrogen, Biodiesel, EGR, Diesel Dual-Fuel Engine, Hydrogen, Biodiesel |
| Subjects: | T Technology > TJ Mechanical engineering and machinery > TJ254.7 Combustion chambers T Technology > TJ Mechanical engineering and machinery > TJ762.E93 Exhaust 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: | Iqbal Maulana Dewantara |
| Date Deposited: | 28 Aug 2023 03:39 |
| Last Modified: | 28 Aug 2023 03:39 |
| URI: | http://repository.its.ac.id/id/eprint/103305 |
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