Increasing Thermoelectric Efficiency: Dynamical Models Unveil Microscopic Mechanisms

When:
02/12/2011 @ 2:00 PM – 3:00 PM
2011-12-02T14:00:00+08:00
2011-12-02T15:00:00+08:00

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.