Quantification of the Implications of Regional Climate and Driving...
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Title: Quantification of the Implications of Regional Climate and Driving Conditions in Electrified Vehicles

Speaker: Tuğçe Yüksel

Date/Time: June 9, 2016, 10:00

Place: FENS G032

Battery cost, limited battery life and range anxiety are major barriers to widespread adoption of electrified vehicles. This talk will examine the impact of operational and design related factors that affect these issues by addressing several questions: How do range, emissions, and battery life vary with regional climate and driving patterns? How much does battery thermal management affect these outcomes? How do life cycle greenhouse gas emissions from gasoline and plug-in electric vehicles compare regionally? The first part of the talk will focus on evaluating the impact of regional climate, thermal management, and driving conditions on battery life. For this purpose, daily driving, charging, and stand-by simulations are performed using a comprehensive and modular simulation model. Various case scenarios are simulated for an air-cooled PHEV battery pack with LiFePO4/graphite chemistry cells, and the sensitivity of the results to each scenario as well as to the modeling assumptions is analyzed. In the second part of the talk, effects of regional temperature on battery electric vehicle (BEV) efficiency, range, and emissions in the United States is examined. Environmental benefits of BEVs are compared to other vehicle powertrain alternatives by accounting for regional differences due to marginal grid mix, ambient temperature, patterns of vehicle miles traveled (VMT), and driving conditions (city versus highway). Finally, technical and policy implications of these outcomes will be discussed and future directions towards assessing and overcoming the barriers to a green transportation system will be introduced.

 

BIO: Tuğçe Yüksel received her PhD in Mechanical Engineering from Carnegie Mellon University in August, 2015. For her PhD, she worked under the supervision of Prof. Jeremy Michalek as a member of Vehicle Electrification Group and Design Decisions Laboratory. Her research focuses on evaluating the performance, cost and environmental benefits of technology and operation conditions in vehicle electrification, and investigating battery design options for electrified vehicles. She earned her B.S. (2007) and M.S. (2010) degrees in Mechanical Engineering from Middle East Technical University, Turkey, and was awarded a Fulbright Scholarship to pursue her graduate studies in the United States.