CD Skripsi

Kaji Eksperimental Penggunaan Biosolar B40 Terhadap Prestasi Mesin Dengan Menggunakan Variasi Tekanan Pengabutan Pada Nosel

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ABSTRACT
Biodiesel is an alternative fuel that can be used to replace fossil fuels such as
Diesel, which are increasingly depleting. Biodiesel has a higher viscosity, density,
and surface tension value than conventional fossil fuels. The level used by the
Indonesian government is 20-30% Biodiesel content, which is then added with
Diesel fuel. If the percentage level of Biodiesel is increased, there are several ways
that can be used to improve engine performance, one of which is to adjust the
fogging pressure. This study aims to determine the effect of increasing fuel injection
pressure on diesel engine performance using Biosolar B40. The research was
carried out by means of a diesel engine operated at a constant rotation of 900 rpm,
and given a load of 2,500 kg/m2 to 15,000 kg/m2. To improve fuel atomization, the
authors change the fogging pressure by rotating the adjusting screw contained in
the fuel nozzle and then tested using an injector tester so that the pressure values
are 110 bar, 120 bar, 130 bar, 140 bar, and 150 bar. The calculated parameters
include Δh on the orifice, the volume of fuel used, fuel consumption time, and engine
rpm. In the tests conducted, it was found that variations in injection pressure have
an effect on engine performance parameters such as effective shaft power, brake
mean effective pressure, thermal efficiency values, air fuel ratio, and specific fuel
consumption which are better than standard pressure. Where for the best engine
performance value at an injection pressure of 150 bar, with an effective shaft power
of 3.775 kW at a maximum load of 15,000 kg/m2, the greatest value of bmep at a
load of 15,000 kg/m2 is 665.415 N/m2, the best thermal efficiency at a load of 12,500
kg/m2 is 89.902 %, for a better air and fuel ratio with a value of 212.852 at a load
of 2,500 kg/m2, and the smallest specific fuel consumption with a value of
0.0000235 kg/kJ at a load of 12,500 kg/m2.
Keywords : Injection Pressure, Biodiesel, B40, Engne Performance

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

07 03. 121 (0004)

Penerbit

Pekanbaru : Universitas Riau – Fakultas Teknik – Teknik Mesin., 2021

Deskripsi Fisik

ix, 79 hlm.; ill.: 29 cm

Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

07 03. 121 (0004)

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

Daus

Versi lain/terkait

Lampiran Berkas

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