ME Seminar Series: Pearsall Distinguished Lecture: Nanoengineering for Efficient Heat Transfer and Energy Conversion Materials and Systems
Friday, March 22, 2013
11:30 am - 1:30 pm
Fitzpatrick Center Schiciano Auditorium Side B
Understanding the transport of heat carriers at microscopic level leads to new ways to design better materials for thermal energy conversion and utilization. This talk will cover a few examples of extraordinary microscopic pictures of heat transport and show how to apply the new understanding to improve macroscale heat transfer and energy conversion materials and devices. After a brief introduction on the connection between nano and energy, the talk will demonstrates via both experiments and simulations that phonon mean free path in solids spans several orders of magnitude. This understanding is applied to engineer more efficient thermoelectric energy conversion materials and devices. In an opposite direction, the talk will discuss how to turn polymers from poor thermal conductors to highly thermally conductive materials. The talk will conclude by discussing theory and experimental results that show thermal radiation heat transfer at nanoscale can exceed the blackbody radiation by several orders of magnitude and the convergence of thermal radiation and heat conduction at nanoscale. Applications of these extraordinary heat transfer phenomena for energy applications will be discussed along the talk.