Analisa Pengaruh Penambahan Fin Pada Air Intake Valve Gas – Oil Fuel Engine Terhadap Performa Mesin Berdasarkan Eksperimen

Palang Aras RFC, Linggar (2018) Analisa Pengaruh Penambahan Fin Pada Air Intake Valve Gas – Oil Fuel Engine Terhadap Performa Mesin Berdasarkan Eksperimen. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Modifikasi mesin diesel berbahan bakar tunggal menjadi mesin diesel berbahan bakar ganda atau Gas - Oil Fuel Engine banyak dilakukan oleh peneliti untuk menyelesaikan permasalahan semakin menipisnya cadangan minyak bumi di dunia. Bahkan cadangan minyak bumi yang semakin lama semakin berkurang sudah diproyeksikan akan habis 50 tahun ke depan. Sistem kerja dari Gas - Oil Fuel Engine adalah memasukkan BBG (Bahan Bakar Gas) ke dalam ruang bakar bersamaan dengan udara pada saat langkah hisap di intake manifold dan akan ikut terbakar dengan solar sebagai pemantiknya. BBG yang digunakan adalah CNG (Compressed Natural Gas). Namun kinerja mesin ketika menggunakan penambahan bahan bakar gas mengalami penurunan. Modifikasi penambahan fixed fin pada air intake valve dilakukan untuk menaikkan swirl ratio sehingga turbulansi udara masuk bersamaan dengan bahan bakar gas menjadi lebih baik. Akibatnya pembakaran yang terjadi akan semakin baik. Dengan menggunakan penambahan fixed fin pada air intake valve gas-oil fuel engine, dapat menaikkan kinerja atau performa mesin menjadi lebih baik. Daya yang dihasilkan oleh mesin meningkat hingga pada beban maksimum dengan penambahan fixed fin. Sedangkan torsi meningkat dengan penambahan fixed fin pada keadaan beban maksimum. Untuk specific energy consumption (SEC) atau konsumsi energi spesifik menjadi akibat dari penambahan fixed fin. =================================================================================================== Modification of single-fuel diesel engine into dual-fuel diesel engine or specifically Gas - Oil Fuel Engine have been done by researchers to solve the problem of depletion petroleum reserves in the world. Petroleum reserves are projected to be exhausted in the next 50 years or less by prediction. The working system of the Gas - Oil Fuel Engine is inject (Fuel Gas) into the combustion chamber along with the air during the suction step in the intake manifold and will burn with the diesel as the lighter. Fuel Gas used here is CNG (Compressed Natural Gas). But the performance of engine when using the addition of fuel gas has decreased. The modification like the addition of fixed fin in the air intake valve is done to increase the swirl ratio. So that turbulent flow of air comes in along with the gas fuel to be better. As a result, combustion process in combustion chamber will be better. By applying a fixed fin addition into the air intake valve gas-oil fuel engine, it can boost engine performance more better. The power generated by the engine with fin additing increases at maximum load. While torque of engine with fin additing increased in maximum load condition. For specific energy consumption (SEC) has been decreased impact of fin additing on air intake valve.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: air intake valve, gas – oil fuel engine, CNG, aliran turbulen, performa
Subjects: T Technology > TJ Mechanical engineering and machinery > TJ785 Internal combustion engines. Spark ignition
V Naval Science > V Naval Science (General)
Divisions: Faculty of Marine Technology (MARTECH) > Marine Engineering > 36202-(S1) Undergraduate Thesis
Depositing User: Linggar Palang Aras RFC
Date Deposited: 22 Jul 2021 23:08
Last Modified: 22 Jul 2021 23:08
URI: https://repository.its.ac.id/id/eprint/57866

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