Analisis Stabilitas Oksidasi Biodiesel B50 Terhadap Penambahan Aditif Antioksidan Curcumin Dan Pyrogallol Serta Pengaruhnya Pada Performa Mesin Diesel

Ibrahim, Mohamad Ershad (2023) Analisis Stabilitas Oksidasi Biodiesel B50 Terhadap Penambahan Aditif Antioksidan Curcumin Dan Pyrogallol Serta Pengaruhnya Pada Performa Mesin Diesel. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Biodiesel memiliki berbagai kelebihan sebagai bahan bakar alternatif. Meskipun begitu, biodiesel tetap memiliki berbagai kekurangan, salah satunya dalam hal stabilitas oksidasi. Penelitian ini dilakukan untuk menganalisis pengaruh penambahan antioksidan alam curcumin dan sintetis pyrogallol terhadap stabilitas oksidasi pada biodiesel B50 serta pengaruhnya pada performa mesin diesel. Secara indikator stabilitas oksidasi, didapatkan hasil yang acak naik turun sehingga penambahan antioksidan terhadap stabilitas oksidasi biodiesel tidak berpengaruh pada stabilitas oksidasi biodiesel B50. Secara performa, terbukti campuran pyrogallol dan curcumin memiliki performa yang cenderung lebih baik selama masa penyimpanan 8 minggu. Pada minggu 4, B50 campuran pyrogallol (PY) dan curcumin memiliki rataan daya dan torsi lebih besar daripada B50 murni dengan nilai masing-masing 2,670 kW dan 14,815 Nm. Pada minggu 8, B50 campuran pyrogallol (PY) dan curcumin memiliki rataan daya dan torsi lebih besar daripada B50 murni dengan nilai masing-masing 2,684 kW dan 14,94 Nm. Sedangkan pada segi SFOC, B50 murni mampu memberikan nilai SFOC cenderung lebih baik pada minggu 0 dan minggu 4 penyimpanan. Namun ketika memasuki minggu 8, B50 campuran pyrogallol (PY) dan curcumin memiliki nilai SFOC lebih baik daripada B50 murni. B50 campuran pyrogallol (PY) dan curcumin memiliki rerata SFOC 347,653 gr/kWH sedangkan B50 murni memiliki rerata SFOC 352,488 gr/kWH.
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Biodiesel has various advantages as an alternative fuel. However, it still has several disadvantages, one of which is related to its oxidative stability. This study was conducted to analyze the influence of adding natural antioxidant curcumin and synthetic antioxidant pyrogallol on the oxidative stability of B50 biodiesel and its impact on diesel engine performance. In terms of the oxidative stability indicator, the results showed random fluctuations, indicating that the addition of antioxidants did not significantly affect the oxidative stability of B50 biodiesel. However, in terms of engine performance, the mixture of pyrogallol and curcumin demonstrated relatively better performance during an 8-week storage period. At week 4, B50 biodiesel with the mixture of pyrogallol (PY) and curcumin exhibited higher average power and torque compared to pure B50 biodiesel, with values of 2.670 kW and 14.815 Nm, respectively. By week 8, the B50 biodiesel with the mixture of pyrogallol (PY) and curcumin showed even higher average power and torque compared to pure B50 biodiesel, with values of 2.684 kW and 14.94 Nm, respectively. Regarding Specific Fuel Oil Consumption (SFOC), pure B50 biodiesel demonstrated better SFOC values at week 0 and week 4 of storage. However, at week 8, the B50 biodiesel with the mixture of pyrogallol (PY) and curcumin exhibited better SFOC values than pure B50 biodiesel. The mixture of pyrogallol (PY) and curcumin resulted in an average SFOC of 347.653 g/kWh, while pure B50 biodiesel had an average SFOC of 352.488 g/kWh.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Biodiesel, stabilitas oksidasi, performa; biodiesel, oxidation stability, performance
Subjects:	T Technology > TJ Mechanical engineering and machinery T Technology > TJ Mechanical engineering and machinery > TJ165 Energy storage. T Technology > TJ Mechanical engineering and machinery > TJ799 Diesel motor--Electronic control. V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM731 Marine Engines
Divisions:	Faculty of Marine Technology (MARTECH) > Marine Engineering > 36202-(S1) Undergraduate Thesis
Depositing User:	Mohamad Ershad Ibrahim
Date Deposited:	21 Sep 2023 05:48
Last Modified:	21 Sep 2023 05:48
URI:	http://repository.its.ac.id/id/eprint/102875

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