Two-Stroke Exhaust System Design

The goal of this project is to design an exhaust system that will reduce the noise and emissions of a two-stroke snowmobile, without significantly sacrificing power. The system will include a tuned pipe, catalytic converter, muffler, and a controllable backpressure valve. The project will provide a baseline for the next four years of the University of Idaho's Clean Snowmobile Challenge Team.

Background
Since 2001, students from the University of Idaho have competed in the SAE Clean Snowmobile Challenge. The competition is allows college students to work on reducing the noise and pollutant emissions while increasing the fuel economy of stock snowmobiles. This year, the UI CSC senior design team will be re-designing the entire exhaust system on the snowmobile.

Deliverables

 * An exhaust system that can be used by the UICSC team for the next four years
 * Sound level and flow simulations for the muffler.
 * A GT Power model for the engine and tuned pipe
 * Heat transfer and flow simulations for the catalyst and muffler
 * Documentation of control system and manufacturing plans

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