This seminar has been cancelled and will be rebooked at a later date:
Skutterudite based thermoelectric materials for automotive waste heat energy conversion
Dr. James Salvador
Chemical Sciences and Materials Systems Laboratory
General Motors R&D Center
Detroit, MI, USA
Wednesday, February 27, 2013
C2-361 (Reading Room)
Abstract: Thermoelectric (TE) energy conversation has the potential to turn massive amounts of waste heat from a variety of combustion processes into useful electrical energy. This is true of large scale industrial settings such as electrical generation by coal, natural gas, or waste incineration, and smaller systems such as internal combustion engines and diesel powered vehicles. However the lack of high efficiency materials has stymied the broad implementation of this technology, relegating it to a few niche applications.
The transportation industry, both commercial and personal vehicles consume some 2.5x1016 kJ of energy per year in the US. Further, it is estimated that nearly 40% of the energy from internal combustion engines is lost in the form of waste heat. If even a small fraction of this energy can be recovered in a cost-competitive manner the realization of fuel savings will be significant.
In this presentation I will address some of the issues facing the application of thermoelectric technology to the recovery of automotive waste heat. Specifically, the durability and strength requirement of the TE materials which will be subjected to the harsh environments of an automobile will be discussed. Finally, I will present some of the fundamental research we have conducted at GM R&D in search of new, more efficient, high temperature TE materials with a focus on skutterudite based compounds.