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. We must have a fully manufactured and tested system before the Clean Snowmobile Competition, held in March. Testing data will be presented in the UICSC team's technical paper and design presentation.

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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