CD Skripsi

PENGARUH PENGATURAN TEKANAN INJEKSI, TEMPERATUR DAN TIME INJECTION TERHADAP KINERJA MESIN DIESEL MENGGUNAKAN BAHAN BAKAR BIOSOLAR B50 DENGAN METODE TAGUCHI

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The current increase in energy demand is inversely proportional to the
decreasing availability of fossil fuels. The Indonesian government has issued
Ministerial Regulation No. 41 of 2018 to gradually replace fossil fuels with
biodiesel. Fossil fuels are not only scarce but also have adverse environmental
impacts such as increasing Earth's surface temperature, altering climate, and
weather patterns. The development of renewable energy sources like bioenergy is
becoming a trend due to cleaner combustion emissions compared to fossil fuels.
However, biodiesel has physical properties such as viscosity, density, flash point,
and surface tension that are higher than diesel fuel, requiring special treatment in
engines for optimal use. This research aims to investigate the influence of
variations in injection timing, fuel inlet temperature, and injection pressure on the
performance of a diesel engine, including effective shaft power, brake thermal
efficiency, specific fuel consumption (SFC), air-fuel ratio (AFR), and exhaust gas
opacity, using B50 biodiesel. The goal is to achieve optimal diesel engine
performance. The study uses a single-cylinder diesel engine at constant speed,
with 5 variations in injection timing (8 - 28°), 5 fuel temperature variations (30 -
70°C), 5 injection pressure variations (130 – 170 bar), and 5 loading variations
(5000 – 25000 kg/m2
). Taguchi method is employed for testing.The research
findings indicate that the optimal variations are injection timing of 23°, fuel
temperature of 60°C, and injection pressure of 150 bar, resulting in the optimal
predicted performance variables of 1.004 kW for shaft power and an AFR of
195.66. Meanwhile, at an injection pressure of 160 bar, optimal predicted
performance includes brake thermal efficiency (20.89%), SFC (0.0001018591
kg/kJ), and opacity (13.54%). Injection timing contributes most significantly to all
parameters: shaft power (56.89%), brake thermal efficiency (85.42%), AFR
(73.08%), SFC (46.71%), and opacity (58.92%).
Keywords: Biodiesel, Injection Pressure, Temperature, Injection Time, Taguchi
Method.

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

1907113240

Penerbit

Pekanbaru : Universitas Riau - F. Teknik - Teknik Mesin., 2024

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

1907113240

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

TEKNIK MESIN

Info Detail Spesifik

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Pernyataan Tanggungjawab

GUNTUR

Versi lain/terkait

Lampiran Berkas

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