Pengaruh Bentuk Intake Manifold Swirl Bagian Bawah Pada Unjuk Kerja Motor Bensin Empat Langkah Satu Silinder

Muin, Abdul (2010) Pengaruh Bentuk Intake Manifold Swirl Bagian Bawah Pada Unjuk Kerja Motor Bensin Empat Langkah Satu Silinder. Diploma thesis, Institut Teknologi Sepuluh Nopember.

Text 2103030082-Non_Degree.pdf - Accepted Version Restricted to Repository staff only Download (6MB)

Abstract

Intake manifold dan karburator di dalam motor bensin berfungsi sebagai penyiapan campuran bahan bakar dan udara sebelum masuk ruang bakar. Perancangan intake manifold dipengaruhi oleh beberapa hal antara lain tekanan intake manifold, temperatur intake manifold, dimensi intake manifold, kekasaran permukaan dalam intake manifold, bentuk intake manifold, dan lain-lain. Salah satu hal yang berpengaruh adalah bentuk intake manifold yang akan memberikan suatu fenomena tersendiri pada intake manifold. Penelitian variasi desain/bentuk intake manifold dilakukan untuk mendapatkan pengaruh desain/bentuk intake manifold terhadap unjuk kerja mesin dan mendapatkan desain/bentuk intake manifold yang baik dari intake manifold yang diteliti. Dalam penelitian ini dilakukan metode penelitian eksperimental (true experimental research) dengan intake manifold standar, powerman dan variasi swirl bagian bawah. Setiap intake manifold diuji dengan kondisi putaran 2500 – 7000 rpm dengan full open throttle menggunakan water brake dynamometer. Pengujian dilakukan dengan menggunakan motor bensin 4 langkah satu silinder dengan bahan bakar bensin premium. Dari hasil penelitian tersebut terlihat bahwa aliran yang terbentuk pada intake manifold mempengaruhi nilai Torsi, BHP, Bmep, Bsfc dan efisiensi thermis. Semakin tinggi kondisi putaran maka head loss yang dihasilkan tiap variasi intake manifold lebih besar dibanding standar. Hal ini memberikan efek pada performa engine, sehingga campuran bahan bakar dan udara yang homogen tidak sebanding dengan head loss yang dihasilkan tiap-tiap variasi intake manifold pada kondisi putaran tinggi.
====================================================================================================================================
Intake manifold and carburator in function as prepareding fuel mixture with gas before going into combustion space. Act of planning intake manifold is effected by some thing. They are intake manifold pressure, intake manifold temperature, intake manifold dimension, roughness of surface in intake manifold, intake manifold form, etc. one of thing effecting is intake manifold form giving a individual fenomena to intake manifold. Research of design variation/ intake manifold form is done to having effect of design/intake manifold form to work show of machine and having design/ a good intake manifold form from intake manifold examined carefully. From experiment that used true experimental research with standard intake manifold, powerman manifolds, and bottom swirl variation. Each intake manifold has tested at condition 2500 until 7000 rpm with full open throttle and used waterbrake dynamometer. This experiment used four stroke engine, once cylinder that use gasoline. From the experiment known that the form of flow in intake manifold effected in torque, BHP, Bsfc, and thermis efficiency. higher cycle made value of head loss in any variation difference. It's effected in engine performance, than homogen fuel mixture not proportional with head loss produced each variation intake manifold at high speed cycle condition.

Item Type:	Thesis (Diploma)
Uncontrolled Keywords:	Bentuk/desain manifold, homogen, head loss, Manifold form/design, homogen, head loss
Subjects:	T Technology > TJ Mechanical engineering and machinery T Technology > TJ Mechanical engineering and machinery > TJ797 Diesel motor--Fuel systems--Testing.
Divisions:	Faculty of Industrial Technology > Mechanical Engineering > 21401-(D3) Diploma 3
Depositing User:	magang .
Date Deposited:	21 Jul 2026 04:34
Last Modified:	21 Jul 2026 04:34
URI:	http://repository.its.ac.id/id/eprint/135677

Actions (login required)

View Item