Heat transport via a local two-state system near thermal equilibrium

Absence of local thermal equilibrium in two models of heat conduction

A crucial assumption in the conventional description of thermal conduction is the existence of local thermal equilibrium. We test this assumption in two simple models of heat conduction. Our first model is a linear chain of planar spins with nearest neighbour couplings, and the second model is that of a Lorentz gas. We look at the steady state of the system when the two ends are connected to he...

Heat due to system-reservoir correlations in thermal equilibrium

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Thermal Cycle Analysis for an Application to Heat Transport System - Two Stage Condensation System

In the energy-saving research developments in recent years, many types of research project on high performance heat pump systems are under development It is required to estimate the thermodynamic performance of these thermal cycles on a common scale by applying an adequate method. a basic cycle of two stage condensation heat pump system is considered. Steady state conditions are analyzed for th...

Thermal balance and quantum heat transport in nanostructures thermalized by local Langevin heat baths.

Modeling of thermal transport in practical nanostructures requires making tradeoffs between the size of the system and the completeness of the model. We study quantum heat transfer in a self-consistent thermal bath setup consisting of two lead regions connected by a center region. Atoms both in the leads and in the center region are coupled to quantum Langevin heat baths that mimic the damping ...

Thermal non-equilibrium transport in colloids