Wirayuda, Septian Alan (2024) Pengaruh Penambahan Aditif Antioksidan pada Biodiesel B35: Studi Pengaruh Camellia Sinensis dan Pyrogallol terhadap Stabilitas Oksidasi serta Implikasinya pada Mesin Diesel. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Hadirnya biodiesel sebagai energi terbarukan tentu mempunyai kelebihan seperti rentan toksisitas cukup rendah dan tingkat biodegradibilitas yang tinggi Namun dibalik kelebihan tersebut, biodiesel memiliki kelemahan, salah satunya yaitu stabilitas oksidasi. Penelitian ini dilakukan untuk menganalisis pengaruh penambahan zat aditif alami Camellia Sinensis dan sintetis Pyrogallol terhadap stabilitas oksidasi pada biodiesel B35 serta pengaruhnya pada performa mesin diesel. Dalam pengujian stabilitas oksidasi, untuk perhitungan mikroba selama 6 minggu didapatkan hasil bahwa B35 dengan campuran Camellia Sinensis dan Pyrogallol masing-masing mendapatkan angka sebesar 1 x 102; 3.57 x 104; dan 4.31 x 104 CFU/ml. Sedangkan pada B35 murni masing-masing mendapatkan angka sebesar 4 x 102; 4.21 x 104; dan 4.38 x 104 CFU/ml. Kemudian untuk nilai asam dan viskositas kinematik B35 dengan campuran Camellia Sinensis dan Pyrogallol mendapatkan angka masing-masing sebesar 0.063; 0.132; dan 0.159 mg KOH/g. Sedangkan pada B35 murni masing-masing mendapatkan angka sebesar 0.086; 0.147; 0.164 mg KOH/g. Pada pengujian performa khususnya di minggu ke-6 untuk B35 dengan campuran Camellia Sinensis dan Pyrogallol mendapat SFOC terendah sebesar 0.25872 kg/kWh pada RPM 1800. Kemudian daya serta torsi tertinggi sebesar 4.479 kW dan 21.399 Nm pada RPM 2000. untuk B35 murni mendapat SFOC terendah sebesar 0.26502 kg/kWh pada RPM 1800. Kemudian daya serta torsi tertinggi sebesar 4.522 kW dan 21.582 Nm pada RPM 2000. Penurunan daya dan torsi B35 campuran aditif disebabkan karena degradasi aditif alami dan pengotor yang mengurangi nilai kalor.
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The presence of biodiesel as a renewable energy certainly has advantages such as low toxicity and high biodegradability, but behind these advantages, biodiesel has weaknesses, for example is oxidation stability. This study was conducted to analyze the effect of the addition of natural additives Camellia Sinensis and synthetic Pyrogallol on the oxidation stability of B35 biodiesel and its effect on diesel engine performance. In the oxidation stability test, the microbial count for 6 weeks showed that B35 with a mixture of Camellia Sinensis and Pyrogallol had numbers of 1 x 102; 3.57 x 104; and 4.31 x 104 CFU/ml, respectively. While in pure B35 each get a number of 4 x 102; 4.21 x 104; and 4.38 x 104 CFU/ml. Then for the acid value and kinematic viscosity of B35 with a mixture of Camellia Sinensis and Pyrogallol get numbers respectively of 0.063; 0.132; and 0.159 mg KOH/g. While in pure B35, the figures were 0.086; 0.147; 0.164 mg KOH/g, respectively. In performance testing especially in week 6 for B35 with a mixture of Camellia Sinensis and Pyrogallol got the lowest SFOC of 0.25872 kg/kWh at 1800 RPM. Then the highest power and torque of 4.479 kW and 21.399 Nm at 2000 RPM. for pure B35 got the lowest SFOC of 0.26502 kg/kWh at RPM 1800. Then the highest power and torque of 4.522 kW and 21.582 Nm at 2000 RPM. The decrease in power and torque of B35 additive blends is due to the degradation of natural additives and impurities that reduce heating value.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Biodiesel, Bunkering, Mikroba, Stabilitas Oksidasi, Performa Biodiesel, Bunkering, Microbes, Oxidation Stability, Performance |
| Subjects: | V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM276.A1 Fuel (Including supplies, costs, etc.) |
| Divisions: | Faculty of Marine Technology (MARTECH) > Marine Engineering > 36202-(S1) Undergraduate Thesis |
| Depositing User: | Septian Alan Wirayuda |
| Date Deposited: | 07 Aug 2024 01:52 |
| Last Modified: | 07 Aug 2024 01:52 |
| URI: | http://repository.its.ac.id/id/eprint/113221 |
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