Studi Eksperimen Pengaruh Laju Alir Gas Hidrogen Terhadap Performa Dan Emisi Mesin Diesel Berbahan Bakar B30-Hidrogen

Santoso, Yulinda Puspita (2022) Studi Eksperimen Pengaruh Laju Alir Gas Hidrogen Terhadap Performa Dan Emisi Mesin Diesel Berbahan Bakar B30-Hidrogen. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Peningkatan kebutuhan energi menyebabkan menipisnya persediaan bahan bakar minyak di dunia dikarenakan konsumsinya yang berlebihan sampai melebihi produksi, hal iniberdampak buruk pada lingkungan karena menyebabkan penurunan kualitas udara yang disebabkan oleh emisi karbon akibat proses pembakaran bahan bakar minyak. Untuk mengurangi pencemaran udara dan memenuhi kebutuhan energi yang terus meningkat, maka diperlukan sumber energi baru dan terbarukan. Salah satu sumber energi baru dan terbarukan yang lebih ramah lingkungan adalah dengan menggunakan biodiesel dari nabati seperti minyak kelapa sawit, dan bahan bakar alternatif lainnya yang terdapat di udara salah satunya dengan gas hidrogen. Penelitian ini dilakukan untuk mengetahui performa dan emisi dari mesin diesel dengan bahan bakar single fuel (B30) dan dual fuel (B30 + gas hidrogen) pada putaran mesin konstan 2000 rpm, pembebanan mesin sebesar 1000 – 4000 W dengan interval 500 W, SOI B30 yaitu 13° BTDC, SOI hidrogen yaitu 0° BTDC, dan tekanan hidrogen 1 bar. Laju alir hidrogen yang divariasikan sebesar 2.5, 5, 7.5, dan 10 lpm. Dari penelitian ini didapatkan bahwa penambahan hidrogen pada bahan bakar B30 dapat meningkatkan performa mesin diesel. Penambahan laju alir hidrogen yang optimal terdapat pada penambahan laju alir gas hidrogen sebesar 2.5 lpm. Performa optimal terdapat pada bahan bakar B30 + H2 2.5 lpm pada beban puncak 3000 watt dengan daya sebesar sebesar 3421 watt, torsi sebesar 16.34 Nm, dan BMEP sebesar 499 kN/m2. Pada performa optimal terjadi kenaikan rata-rata terhadap B30 single fuel pada BTE sebesar 23.83%, AFR sebesar 22.35%, dan mengalami penurunan terhadap B30 single fuel pada SFC sebesar 18.36%, dan energi per siklus sebesar 13.36%. Pada penambahan laju alir hidrogen 2.5 lpm, rata-rata nilai substitusi B30 pada setiap beban sebesar 19.14% dan rata-rata HESnya sebesar 3.65%. Secara keseluruhan, penambahan hidrogen memberikan dampak positif yaitu dapat menurunkan emisi CO, HC, smoke, dan CO2. Emisi tertinggi terdapat pada bahan bakar single fuel B30
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The increase in energy demand causes the depletion of fuel oil supplies in the world due to excessive consumption that exceeds production, this has a negative impact on the environment because it causes a decrease in air quality caused by carbon emissions due to the process of burning fuel oil. To reduce air pollution and meet the ever-increasing energy needs, new and renewable energy sources are needed. One of the new and renewable energy sources that are more invironmentally friendly is to use biodiesel from vegetable sources such as palm oil, and other alternative fuels found in the air, one of which is hydrogen gas. This research was conducted to determine the performance and emissions of a diesel engine with single fuel (B30) and dual fuel (B30 + hydrogen gas) at a constant engine speed of 2000 rpm, engine loading of 1000 - 4000 W with 500 W intervals, SOI B30 is 13° BTDC, hydrogen SOI is 0° BTDC, and hydrogen pressure is 1 bar. The hydrogen flow rates were varied at 2.5, 5, 7.5, and 10 lpm. From this study it was found that the addition of hydrogen to B30 fuel can improve the performance of diesel engines. The addition of the optimal hydrogen flow rate is found in the addition of a hydrogen gas flow rate of 2.5 lpm. Optimal performance is found in B30 + H2 2.5 lpm fuel at peak load of 3000 watts with a power of 3421 watts, a torque of 16.34 Nm, and a BMEP of 499 kN/m2. In optimal performance, there is an average increase in B30 single fuel at BTE by 23.83%, AFR by 22.35%, and a decrease in B30 single fuel at SFC by 18.36%, and energy per cycle by 13.36%. At the addition of a hydrogen flow rate of 2.5 lpm, the average substitution value of B30 at each load was 19.14% and the average HES was 3.65%. Overall, the addition of hydrogen has a positive impact, namely it can reduce CO, HC, smoke, and CO2 emissions. The highest emission is found in single fuel B30.

Item Type:	Thesis (Other)
Additional Information:	RSM 621.436 San s-1 2022
Uncontrolled Keywords:	Mesin Diesel Dual Fuel, Biodiesel B30, Gas Hidrogen, Laju alir, Dual Fuel Diesel Engine, Biodiesel B30, Hydrogen Gas, Flow rate
Subjects:	T Technology > TJ Mechanical engineering and machinery > TJ700 Traction engines, etc.
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Mechanical Engineering > 21201-(S1) Undergraduate Thesis
Depositing User:	Mr. Marsudiyana -
Date Deposited:	25 Feb 2025 06:19
Last Modified:	25 Feb 2025 06:19
URI:	http://repository.its.ac.id/id/eprint/118879

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