1. Voice of the Customer R16901: Student Initiated Projects
RIT Hot Wheelz Thermal Management System

2. Motivation
Thermal management systems are crucial to the performance of electric vehicles
RIT Hot Wheelz first year building a formula electric vehicle
Limited to no time to properly design or test a thermal management system

3. Project Description Goals: Objectives:
Create an efficient thermal management system that will greatly enhance the performance of the RIT Hot Wheelz vehicle
Objectives:
Test and analyze the current thermal management system on the vehicle
Design and create a more efficient thermal management system to be utilized on the vehicle for competition in Spring 2017

4. Research
Three factors of thermal performance
Heat Generation
Heat Transfer
Allowable Temperature
The temperature of a component is the balance between the heat generated and the heat transferred
Air cooling: directing air flow through the use of fans or heat sinks
Liquid cooling: cool liquid is sent through channels incorporated in heat exchangers or radiators
Air Cooling Advantages
Simple system
Lower cost
Air Cooling Disadvantages
Less effective heat transfer
Cooling capacity limited by ambient temperature
Liquid Cooling Advantages
Cooling capacity can be adjusted by adjusting fluid flow rate
Stable cooling performance
Liquid Cooling Disadvantages
Space needed for tubing
Costlier repair and maintenance
More complex system
Resources:
EV Forum (
Electric Car 101 Article (

5. Benchmarking Air Cooling Options Liquid Cooling Options Kits Radiators
Resources:
Fans:
Heat Sinks:
Radiators:
Heat Exchangers:
Kits:
Air Cooling Options
Liquid Cooling Options
Kits
Radiators
Heat Sinks
Heat Exchangers
Fans

6. Stakeholders RIT Hot Wheelz Team
Chief Engineer: Maura Chmielowiec
Electrical Manager: Missy Miller
Finance Manager: Missy Miller
Circuit Design Sub-Group Lead: Kendra Brock
Motor Controller Sub-Group Lead: Cindy Gomez
Electrical Mounting Sub-Group Lead: Maura Chmielowiec
RIT Hot Wheelz Faculty Technical Advisor
Marty Schooping
RIT Hot Wheelz GM Mentor
Adam Tallman

7. Objective Tree

8. Customer Requirements

9. Next Steps Continue Stakeholder Interviews Voice of the Engineer
Update Customer Requirements
Voice of the Engineer
Concept Generation

10. Questions?