Unjuk Kerja Mesin Diesel Berbahan Bakar Campuran Biodiesel Jarak dan Biodiesel Jelantah

Wahyudi, Wahyudi; Sarip, Sarip; Sudarja, Sudarja; Suhatno, Haris

doi:10.18196/jmpm.3135

Cited by 5 publications

(8 citation statements)

References 8 publications

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“…The viscosity for B5 is 3.9 cSt, then increases to 4.6 cSt for B10, 4.7 cSt for B15, and finally reaches 5.2 cSt for B20. These results show that the higher the concentration of biodiesel in the mixture, the higher the fluid's resistance to flow (Wahyudi et al, 2020).…”

Section: Physical Properties Of Jatropha -Used Cooking Oil Biodieselmentioning

confidence: 75%

“…This increase in viscosity indicates that when the concentration of jatropha-used cooking biodiesel in the mixture increases, the resistance to flow also increases. This resistance can affect the fuel injection process, where higher viscosity can affect the formation of fuel droplets and mixing with air, ultimately affecting the combustion quality in the engine combustion chamber (Wahyudi et al, 2020).…”

Section: Physical Properties Of Jatropha -Used Cooking Oil Biodieselmentioning

confidence: 99%

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Correlation between Physical Properties and Specific Fuel Consumption in Jatropha -Used Cooking Oil Biodiesel Mixtures

Wahyudi,

Nadjib,

Apriyanto

2023

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This study was motivated by the need to understand the influence of using waste jatropha biodiesel on the physical properties of fuel and the performance of diesel engines. The primary aim was to determine the relationship between the fuel's physical properties, spray angle, and specific fuel consumption (SFC) at various load levels. The methodology employed included measurements of density, viscosity, flash point, calorific value, spray angle, and SFC for different blends of waste jatropha biodiesel and diesel (B5, B10, B15, B20). The research results demonstrate an increase in density, kinematic viscosity, and flash point, along with a decrease in calorific value, as the biodiesel content increases. The density of the biodiesel mixture ranges from 823 kg/m³ at B5 to 836.50 kg/m³ at B20. The kinematic viscosity increases from 3.9 cSt at B5 to 5.2 cSt at B20, and the flash point rises from 112.9°C at B5 to 128.7°C for B20. Meanwhile, the calorific value decreases from 10308.2670 cal/g at B5 to 10133.8280 cal/g for B20. A strong correlation exists between density and kinematic viscosity with the spray angle, exhibiting R2 values of 0.9141 and 0.8287, respectively. The correlation between the fuel's physical properties and the specific fuel consumption (SFC) is also substantial, marked by high R2 values above 0.93. These findings provide a solid foundation for the development of more optimal biodiesel formulations.

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Section: Physical Properties Of Jatropha -Used Cooking Oil Biodieselmentioning

confidence: 75%

Section: Physical Properties Of Jatropha -Used Cooking Oil Biodieselmentioning

confidence: 99%

Correlation between Physical Properties and Specific Fuel Consumption in Jatropha -Used Cooking Oil Biodiesel Mixtures

Wahyudi,

Nadjib,

Apriyanto

2023

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“…Kebutuhan energi yang semakin meningkat memerlukan sumber energi lain sebagai pengganti minyak bumi [1]. Biodiesel merupakan sumber energi alternatif yang menjanjikan dan telah dilakukan penelitian dalam beberapa tahun terakhir yang merupakan alternatif pengganti solar yang ramah lingkungan [2].…”

Section: Pendahuluanunclassified

Analisis Sifat Fisika dan Nilai Keekonomian Minyak Goreng Bekas Menjadi Biodiesel Dengan Metode Transesterifikasi

Megawati¹,

Ardiansyah²,

Mukminin³

et al. 2022

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Biodiesel merupakan bahan bakar alternatif pengganti solar yang berasal dari bahan nabati seperti minyak goreng bekas. Minyak goreng bekas adalah limbah dari sisa penggorengan, biasanya dibuang karena sudah digunakan lebih dari satu kali. Transesterifikasi merupakan reaksi antara trigliserida yang terkandung dalam minyak nabati atau lemak hewan dengan alkohol untuk membentuk alkil ester. Penelitian ini bertujuan untuk menganalisis sifat fisika dan nilai keekonomian minyak goreng bekas menjadi biodiesel dengan metode transesterifikasi. Bahan limbah yang digunakan merupakan minyak goreng. Analisis fisika dilakukan dengan melakukan pengujian karakteristik biodiesel meliputi % FFA, angka asam, gliserol, kandungan air, massa jenis, pH, rendemen dan warna. Nilai karakteristik biodisel pada sampel 1 yaitu: FFA sebesar 0,65 %, angka asam 0,42 mg, gliserol 59 mL, kadar air 0,006 %, rendemen 0,83 %, massa jenis 852 kg/m3, pH 7 dan menghasilkan warna kuning emas, sedangkan nilai karakteristik biodisel pada sampel 2 yaitu: FFA sebesar 0,56 %, angka asam 0,50 mg, gliserol 58 mL, kadar air 0 %, rendemen 0,83 %, massa jenis 845 kg/m3, pH 7 dan menghasilkan warna kuning emas. Nilai karakteristik biodisel pada sampel 3 yaitu: FFA sebesar 0,65 %, angka asam 0,50 mg, gliserol 59 mL, kadar air 0,07 %, rendemen 0,78 %, massa jenis 847 kg/m3, pH 7 dan menghasilkan warna kuning emas. Pengolahan minyak goreng bekas sebanyak 300 L/bulan akan menghasilkan biodiesel 246 L/bulan @Rp. 9.000 = Rp. 2.214.000 dan gliserol 23 L/bulan @Rp. 3.000 = Rp. 86.250. Sehingga diperoleh total pendapatan = Rp.2.300.250/bulan. Sementara itu, biaya produksi berupa penggunaan listrik, pembelian pelarut dan katalis sebesar Rp.1.370.500/bulan. Sehingga Hasil analisis keekonomian menunjukkan bahwa pembuatan biodiesel skala industri kecil layak diproduksi dengan nilai keuntungan mencapai Rp.929.750/bulan.

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“…Dengan perbandingan bahan bakar B0, B10, B20, B30, B40 dan B100, sesuai dengan grafik bahwa tinggi api yang dihasilkan solar lebih besar dibandingkan dengan biodiesel. Ini juga diperkuat dalam studi [20] yang menyatakan bahwa tren peningkatan flame length utamanya disebabkan oleh peningkatan difusi aksial bahan bakar. Selain itu, dibutuhkan banyak udara ambien yang perlu digunakan untuk mencapai proporsi stoikiometrik.…”

Section: Pengaruh Campuran Bahan Bakar Terhadap Tinggi Api Dan Lebar Api Hasil Pembakaran Sprayunclassified

“…Dengan perbandingan tekanan 4 bar dan 5 bar sesuai hasil grafik bahwa lebar api terbesar adalah tekanan 5 bar pada bahan bakar solar, disebabkan karenan flash point solar lebih rendah dibandingkan biodiesel sehingga atomisasi yang terbentuk lebih mudah dibakar. Gagasan ini juga diperkuat bahwa menurut [20], bahwa bahan bakar mengalir disepanjang sumbu api dan berdifusi secara radial ke arah luar, sementara udara berdifusi ke arah dalam. Semakin besar tekanan bahan bakar memperbesar posisi sudut dan dengan demikian api yang dihasilkan semakin lebar.…”

Section: Pengaruh Campuran Bahan Bakar Terhadap Tinggi Api Dan Lebar Api Hasil Pembakaran Sprayunclassified

Pengaruh Campuran Bahan Bakar Biodiesel WCO - Diesel terhadap Karakteristik Api Hasil Pembakaran Spray Difusi pada Concentric Jet Burner

Sukri

Sasongko

Widodo

2021

JRM

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Biofuels from waste cooking oil (WCO) represent a sizable opportunity not only in terms of energy production but also as a way for sustainable development despite their low yield, higher viscosity, lengthy production time and cost. Alternatively, biodiesel can be blended at an appropriate blending ratio with convention diesel oils. The biodiesel and its blends is proved to give better emission characteristics than conventional diesel oils. This study aims to experimentally investigate the effect of the fuel blend on the combustion characteristics of WCO biodiesel. The characteristic are the droplet size, flame height, flame width and temperature distribution. In this study, the blended fuel are B0 (Solar), B10, B20, B30, B40 and B100 (WCO biodiesel). Measurement and visualization of the combustion flame for each variation of the fuel mixture was were tested at different pressures, namely 4 bar and 5 bar. The experimental results show that the droplet size increases with increasing WCO concentration in the fuel; on the other hand, visualization and calculations show that the height and width of the flame of the fuel mixture decreases Observation on the temperature distribution shows that the WCO biodiesel mixture has the potential to increase the fire temperature at certain points

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Unjuk Kerja Mesin Diesel Berbahan Bakar Campuran Biodiesel Jarak dan Biodiesel Jelantah

Cited by 5 publications

References 8 publications

Correlation between Physical Properties and Specific Fuel Consumption in Jatropha -Used Cooking Oil Biodiesel Mixtures

Correlation between Physical Properties and Specific Fuel Consumption in Jatropha -Used Cooking Oil Biodiesel Mixtures

Analisis Sifat Fisika dan Nilai Keekonomian Minyak Goreng Bekas Menjadi Biodiesel Dengan Metode Transesterifikasi

Pengaruh Campuran Bahan Bakar Biodiesel WCO - Diesel terhadap Karakteristik Api Hasil Pembakaran Spray Difusi pada Concentric Jet Burner

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