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Increasing Thermoelectric Efficiency: Dynamical Models Unveil Microscopic Mechanisms

Speaker: 
Giulio Casati (Insubria University, Italy)
Date: 
Fri, 02/12/2011 - 2:00pm to 3:00pm
Location: 
NTU - MAS Executive Classroom 1 (MAS-03-06)
Event Type: 
Other Seminars

Abstract

Dynamical nonlinear systems provide a new approach to the old problem of increasing the efficiency of thermoelectric machines. Here we discuss stylized models of classical dynamics, including noninteracting complex molecules in an ergodic billiard, a disordered hardpoint gas and systems with broken time-reversal symmetry where the Curzon-Ahlborn limit for efficiency at maximum power can be overcome . The main focus will be on the physical mechanisms, unveiled by these dynamical models, which lead to high thermoelectric efficiency approaching the Carnot limit.
 

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