Reminder: BNC Virtual Faculty Seminar Series TODAY @ 12:00noon.
The BNC Virtual Faculty Seminar Series is designed to provide faculty a platform to present an overview of their research and the opportunity for collaborative discussion
with other BNC faculty and researchers across six colleges and 15 academic units.
Xiulin Ruan
Professor, School of Mechanical Engineering
November 19th,
2020 | 12:00pm
Join Zoom:
https://purdue-edu.zoom.us/j/93857631004
Title:
Pushing Boundaries of Thermal Transport and Sustainable Energy: From First Principles Predictions to Scalable Applications
Abstract: This talk will overview our recent innovations in thermal transport and sustainable energy, by pushing the boundaries ranging from fundamental first principles predictions to scalably manufactured systems. The first part
of the talk will cover predictive first principles and molecular dynamics simulations of thermal conductivity and optical (or thermal radiative) properties. In particular, we establish four-phonon scattering as an unexpected significant mechanism affecting
thermal conductivity of nearly all materials at high temperature, and 2D materials, low thermal conductivity materials, and certain high-thermal conductivity materials even at room temperature.1 In addition, four-phonon scattering can have significant
or leading role in determining infrared optical properties of dielectrics.2 For complex crystals, the conventional phonon mean free path concept is insufficient, and we propose a two-phonon transport theory to better describe their thermal transport.3
We further show that machine learning can be used to dramatically accelerate the predictive design of energy nanomaterials.4 The second part of the talk will cover our development of the first commercial-like particle-matrix radiative cooling paint
that can cool below the ambient temperature under direct sunlight.5 It is achieved via several approaches distinct from commercial paints: the use of the wide bandgap CaCO3 fillers, a high particle volume concentration of 60%, and a broad
size distribution. Radiative cooling paints can have broad implications from saving energy to combatting climate change.6 The talk will close by exploring future directions and collaboration opportunities.
1.
Feng et al., Phys. Rev. B 96, 161201(R) (2017). 2.
Yang et al., Phys. Rev. B 101, 161202(R) (2020). 3.
Luo et al., Nat. Commun. 11, 2554 (2020). 4.
Chowdhury et al., Nano Energy 69, 104428 (2020). 5.
Li et al, Cell Rep. Phys. Sci. 1, 100221 (2020). 6.
BBC NEWS
Bio:
Dr. Xiulin Ruan is a professor in the School of Mechanical Engineering and Birck Nanotechnology Center at Purdue University. He received his B.S. and M.S. from the Department of Engineering Mechanics at Tsinghua University, in 2000 and 2002 respectively.
He then received an M.S. in electrical engineering in 2006 and Ph.D. in mechanical engineering in 2007 from the University of Michigan at Ann Arbor, before joining Purdue. His research and teaching interests are in predictive simulations, scalable manufacturing,
and multiscale characterizations of thermal transport materials and systems. He received the NSF CAREER Award, Air Force Summer Faculty Fellowship, ASME Heat Transfer Division Best Paper Award, the inaugural School of Mechanical Engineering Outstanding Graduate
Student Mentor Award, and was named a University Faculty Scholar of Purdue University and an ASME Fellow, among his honors. He currently serves as an associate editor for
ASME Journal of Heat Transfer.
Upcoming BNC Virtual Faculty Seminars, Fall 2020:
|
Date |
Faculty |
Title |
|
9/10/20 |
Ali Shakouri, Director of Birck Nanotechnology Center |
Overview of SMART Industry Consortium |
|
9/17/20 |
Luna Lu, Professor of Civil Engineering - *Note time change* (10am - 11am): Co-Hosted with ECE |
Nanotechnology for Energy Harvesting and Sensing Applications |
|
9/24/20 |
Alex Ma, Assistant Professor of Physics and Astronomy |
Superconducting circuits for quantum simulation and quantum information sciences |
|
10/01/20 |
Hadiseh Alaeian, Assistant Professor of Electrical and Computer Engineering |
atom-Nanophotonics at low dimensions |
|
10/08/20 |
Jianguo Mei, Assistant Professor, Department of Chemistry
|
Semiconducting Polymers: A Journey from Scientific Curiosity to Technology Commercialization |
|
10/15/20 |
Chen-Lung Hung, Assistant Professor of Physics and Astronomy
|
Engineering atom-nanophotonics hybrid lattices |
|
10/22/20 |
Chi Hwan Lee, Assistant Professor of Biomedical Engineering and Mechanical Engineering |
Sticker-Like Flexible Sensors for Wearable Healthcare Applications |
|
10/29/20 |
Ryan Wagner, Research Assistant Professor, School of Mechanical Engineering |
Atomic force microscopy as a tool for multiphysics nanoscale characterization |
|
11/5/20 |
Arnab Banerjee, Assistant Professor of Physics and Astronomy |
Co-design towards exotic spin-based systems and devices |
|
11/12/20 |
Krishna Jayant, Professor of BME - *Note time change* (10am - 11am): Co-Hosted with ECE |
|
|
11/19/20 |
Xiulin Ruan, Professor, School of Mechanical Engineering |
First Principles and Machine Leaning Predictions of Thermal and Optical Properties, and the Developments of Radiative Cooling Paints |
Spring 2021 Schedule:
|
Date |
Faculty |
Title |
|
2/4/21 |
Yi Xie, Assistant Professor, School of Nuclear Engineering |
Degradation of Structural Materials and Fuels in Nuclear Systems |
|
2/11/21 |
Letian Dou, Assistant Professor, Davidson School of Chemical Engineering |
Organic-Perovskite Hybrid Quantum Wells, Heterostructure, and Optoelectronics |
|
2/18/21 |
Nikhilesh Chawla, Ransburg Professor, School of Materials Engineering |
|
|
2/25/21 |
Sorin Adam Matei, Associate Dean of Research and Graduate Education, College of Liberal Arts, Professor of Communication, Brian Lamb School of Communication |
Team Science – what it is, how it works, and why it does not always work the way we want it to work |
|
3/4/21 |
David Cappelleri, Associate Professor of Mechanical Engineering |
Microrobotics Research Highlights |
|
3/11/21 |
Stylianos Chatzidakis, Assistant Professor, School of Nuclear Engineering |
|
|
3/18/21 |
Reading Day |
|
|
3/25/21 |
Tyler Tallman, Assistant Professor, School of Aeronautics and Astronautics |
|
|
4/1/21 |
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|
4/8/21 |
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|
4/15/21 |
||
|
4/22/21 |
||
|
4/29/21 |
Dead Week |
|
|
5/6/21 |
Finals Week |
Thanks!
Jaime Turner
Lead Administrative Assistant to the Director | Birck Nanotechnology Center
BRK | 1205 W State Street | West Lafayette, IN 47907
o: 765-494-3509 | m: 765-491-3064 | jjturner@purdue.edu
