Analisis Pengaruh Penambahan Aditif n-Pentanol Pada Biodiesel B100 Terhadap Performa Dan Emisi NOx Yang Dihasilkan Mesin Diesel

Pranesti, Nira Ayu (2025) Analisis Pengaruh Penambahan Aditif n-Pentanol Pada Biodiesel B100 Terhadap Performa Dan Emisi NOx Yang Dihasilkan Mesin Diesel. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Peningkatan konsumsi bahan bakar mendorong penggunaan energi alternatif, salah satunya adalah biodiesel minyak kelapa sawit (B100). B100 akan ditambahkan n-pentanol, bertujuan untuk menurunkan emisi NOx yang dihasilkan pada mesin diesel. Oleh karena itu, dilakukan penelitian mengenai penambahan n-pentanol 10% (B90P10) dan 20% (B80P20) pada B100 yang bertujuan untuk mengetahui pengaruh penambahan n-pentanol terhadap properties, performa, dan emisi NOx terhadap B100. Metode yang digunakan dalam penelitian ini adalah metode eksperimen dengan menggunakan mesin Yanmar TF85-MH. Parameter pengujian, meliputi nilai densitas, viskositas, flash point, nilai kalor, SFOC, daya, torsi, dan emisi NOx. Emisi diukur menggunakan E-com gas analyzer pada 2200 RPM dengan pembebanan 25%, 50%, 75%, dan 100%, sesuai dengan MARPOL Annex VI Regulation 13 Test Cycle E2. Dari hasil penelitian, menunjukkan bahwa, penambahan n-pentanol dapat menimbulkan perubahan properties pada B100, di mana pada B90P10 memiliki densitas 0,89%, viskositas 21,82 %, flash point 43,02%, dan nilai kalor 0,20% lebih rendah dibandingkan B100. Kemudian pada B80P20, terjadi perubahan densitas sebesar 1,77%, viskositas 38,18%, flash point 65,12% dan nilai kalor 0,88% lebih rendah dibandingkan dengan B100 murni. Pada uji performa, penambahan n-pentanol meningkatkan SFOC kurang dari 7% dibandingkan B100. Pada konsumsi bahan bakar terendahnya, ketika menggunakan B90P10 SFOC meningkat sebesar 1,54% dan B80P20 meningkat sebesar 5,98%. Daya dan torsi menurun kurang dari 2%, yaitu 0,18% pada B90P10 dan 0,91% pada B80P20. Semakin tinggi rasio n-pentanol, emisi NOx semakin menurun, yaitu rata-rata 8,13% pada B90P10 dan 11,24% pada B80P20 dibandingkan B100. Dengan demikian, n-pentanol efektif menurunkan emisi NOx, meskipun sedikit mengurangi daya dan torsi, serta meningkatkan konsumsi bahan bakar.
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Increased fuel consumption has driven the use of alternative energy sources, one of which is palm oil biodiesel (B100). B100 was blended with n-pentanol, with the aim of reducing NOx emissions produced by diesel engines. Therefore, a study was conducted on the addition of 10% n-pentanol (B90P10) and 20% n-pentanol (B80P20) to B100 to determine the effect of n-pentanol addition on the properties, performance, and NOx emissions of B100. The method used in this study was an experimental method using a Yanmar TF85-MH engine. The testing parameters included density, viscosity, flash point, calorific value, SFOC, power, torque, and NOx emissions. Emissions were measured using an E-com gas analyzer at 2200 RPM with loads of 25%, 50%, 75%, and 100%, in accordance with the MARPOL Annex VI Regulation 13 Test Cycle E2. The results of the study indicate that the addition of n-pentanol can cause changes in the properties of B100, where B90P10 has a density of 0.89%, viscosity of 21.82%, flash point of 43.02%, and calorific value of 0.20% lower than B100. In B80P20, there was a change in density of 1.77%, viscosity of 38.18%, flash point of 65.12%, and calorific value of 0.88% lower than pure B100. In performance testing, the addition of n-pentanol increased the SFOC by less than 7% compared to B100, with the lowest increase of 1.54% (B90P10) and the highest of 5.98% (B80P20). Power and torque decreased by less than 2%, specifically 0.18% for B90P10 and 0.91% for B80P20. As the n-pentanol ratio increases, NOx emissions decrease, averaging 8.13% for B90P10 and 11.24% for B80P20 compared to B100. Thus, n-pentanol effectively reduces NOx emissions, although it slightly reduces performance and increases fuel consumption.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Biodiesel, Emisi NOx, Minyak Kelapa Sawit, N-Pentanol, Performa
Subjects:	T Technology > TJ Mechanical engineering and machinery > TJ324.5 Fuel systems T Technology > TJ Mechanical engineering and machinery > TJ797 Diesel motor--Fuel systems--Testing.
Divisions:	Faculty of Marine Technology (MARTECH) > Marine Engineering > 36202-(S1) Undergraduate Thesis
Depositing User:	Nira Ayu Pranesti
Date Deposited:	05 Aug 2025 04:34
Last Modified:	05 Aug 2025 04:34
URI:	http://repository.its.ac.id/id/eprint/127400

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