Pengaruh Perubahan Bentuk Intake Manifold Terhadap Unjuk Kerja Motor Diesel Dengan Metode Simulasi
Submission Date: 2014-02-12 14:11:02
Accepted Date: 2014-03-15 00:00:00
Abstract
Berbagai modifikasi pada mesin diesel dewasa ini telah banyak dilakukan. Mesin diesel mengalami pemodifikasian tidak lain adalah untuk meningkatkan unjuk kerja atau performa. Bagian mesin diesel yang paling banyak dimodifikasi adalah Intake Manifold. Pada permukaan dalam intake manifold ditambahkan pelat yang berbentuk ulir. Penambahan ulir akan mengakibatkan meningkatnya turbulensi aliran udara (swirl) yang akan masuk ke dalam ruang bakar. Semakin meningkatnya turbulensi aliran udara yang mengalir ke ruang bakar menghasilkan pencampuran udara dan bahan bakar yang lebih baik sehingga kualitas proses pembakaran akan semakin baik. Hal ini terlihat dari hasil analisa aliran yang dilakukan pada software. Dengan memodifikasi Intake Manifold dapat meningkatkan performa mesin diesel dimana terjadi pengurangan pembentukan jelaga pada gas buang, meningkatkan efisiensi konsumsi bahan bakar yang diuji lansung pada mesin diesel. Hasil terbaik dari pengujian diperoleh penggunaan ulir dengan panjang gelombang 100 mm.
Keywords
Mesin diesel; performa; swirl; analisa aliran; Intake Manifold.
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