Pengaruh Jumlah Sudu Swirl Vanes dan Equivalance Ratio Terhadap Visualisasi dan Distribusi Temperatur Api Difusi

Cristianto, Andri Perdana (2018) Pengaruh Jumlah Sudu Swirl Vanes dan Equivalance Ratio Terhadap Visualisasi dan Distribusi Temperatur Api Difusi. Sarjana thesis, Universitas Brawijaya.

Abstract

Swirl vanes adalah suatu alat yang terdiri dari sudu-sudu statis yang digunakan untuk menimbulkan pusaran pada aliran udara yang melewatinya. Tujuan dari penggunaan swirl vanes sendiri adalah untuk meningkatkan pencampuran antara bahan bakar dan udara. Dimana udara yang melewati swirl vanes akan menghasilkan vortex. Vortex yang terbentuk akan menghasilkan zona resirkulasi dibagian tengah aliran sehingga aliran menjadi turbulen dan akan meningkatkan pencampuran antara bahan bakar dan udara. Swirl vanes yang digunakan pada penelitian ini divariasikan berdasarkan jumlah sudu yang terdiri dari 4, 6, dan 8 sudu. Pada penelitian kali ini akan dibahas mengenai pengaruh jumlah sudu dan ekuivalen rasio terhadap visualisasi dan distribusi temperatur api difusi diikuti dengan stabilitas nyala apinya. Hasil penelitian menunjukkan bahwa penambahan jumlah sudu akan meningkatkan distribusi temperatur dari api difusi dimana persebaran temperatur menjadi semakin merata. Penambahan jumlah sudu juga akan cenderung mengurangi tinggi api difusi hal itu dikarenakan semakin besar hambatan yang dihasilkan oleh sudu swirl vanes sehingga akan mengakibatkan semakin turbulennya aliran reaktan. Nilai ekuivalen rasio akan mempengaruhi ketinggian api dimana semakin besar ekuivalen rasio maka akan meningkatkan ketinggian dari api difusi. Hal itu disebabkan semakin banyaknya energi kimia dalam hal ini bahan bakar metana yang teroksidasi menjadi energi kalor.

English Abstract

Swirl vanes are a device consisting of static blades used to cause a vortex to flow of the air passing through it. The purpose of using swirl vanes alone is to increase the mixing between fuel and air. Where the air passes through the swirl vanes will produce a vortex. The resulting vortex will produce a recirculation zone in the middle of the flow so that the flow becomes turbulent and will increase the mixing between fuel and air. Swirl vanes used in this study were the temperature spread becomes more evenly distributed. The addition of the number of blades will also tend to reduce the height of the diffusion flame due to the greater degree of turbulence produced by the blades of vanes. The equivalent value of the ratio will affect the height of the flame where the greater equivalent ratio will increase the height of the diffusion flame. This due to the increasing amount of chemical energy in this case of oxidized methane fuel into heat energy The results showed that increasing the amount of the blade will increase the temperature distribution of the diffusion flame, where the temperature spread becomes more evenly distributed. Increasing the number of blades will also tend to reduce the height of the diffusion flame due to the greater obstacles generated by the blades of vanes so that will result in more turbulent flow of reactants. The equivalent value of the ratio will affect of the height of the fire where the greater the equivalent ratio will increase the height of the diffusion flame. This is due to the increasing amount of chemical energy in this case of oxidized methane fuel into heat energy

Item Type: Thesis (Sarjana)
Identification Number: SKR/FT/2017/1163/051801796
Uncontrolled Keywords: Swirl vanes, equivalence ratio, distribusi temperatur, api difusi
Subjects: 600 Technology (Applied sciences) > 620 Engineering and allied operations
Divisions: Fakultas Teknik > Teknik Mesin
Depositing User: Budi Wahyono Wahyono
Date Deposited: 05 Apr 2018 02:55
Last Modified: 19 Oct 2021 01:43
URI: http://repository.ub.ac.id/id/eprint/9202
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