Theoretical and Experimental Studies on Non-Fourier Heat Conduction Based on Thermomass Theory

Widely recognized as an outstanding contribution to the literature, work on the novel thermomass theory capable of quantitatively predicting energy transport in nanomaterials, covers non-Fourier behaviors and includes fresh data on metallic nanofilms.

This book mainly focuses on the theoretical and experimental study of non-Fourier heat conduction behavior. A novel thermomass theory is used as the theoretical basis, which provides a general heat conduction equation for the accurate prediction of non-Fourier heat conduction. In order to prove the validity of this thermomass theory, a large current was used to heat the metallic nanofilm at the minimum temperature of 3 K. The measured average temperature of the nanofilm was notably higher than the prediction of Fourier's heat diffusion equation, while matching well with the general heat conduction equation. This is the first time that steady non-Fourier heat conduction has been observed. Moreover, this book concerns the role of electron-phonon interaction in metallic nanofilms, which involves the breakdown of the Wiedemann-Franz law at low temperatures and interfacial thermal resistance at femtosecond timescales. Readers will find useful information on non-Fourier heat conduction and the latest advances in the study of charge and heat transport in metallic nanofilms.

Nominated as an outstanding Ph.D. thesis by Tsinghua University, China Presents a comprehensive introduction to the novel Thermomass theory, which is capable of quantitatively predicting the energy transport in nano-materials, including non-Fourier behaviors Provides original data of thermal properties of metallic nanofilms in a wide temperature range and gives a full explanation based on kinetic theory Includes supplementary material: sn.pub/extras

Auteur

Hai-Dong Wang received his Ph.D. degree in Power Engineering and Engineering Thermophysics from Tsinghua University, China in 2012. Currently he works as a post-doctor at the Institute of Engineering Thermophysics, School of Aerospace, Tsinghua University, China.

Contenu
Introduction.- Thermomass theory for non-Fourier heat conduction.- Experimental investigation of thermal wave and temperature wave.- Experimental proof of steady-state non-Fourier heat conduction.- Conclusions.