Energy Conversion & Heat Transfer

New findings could help hybrid, electric cars keep their cool

Understanding precisely how fluid boils in tiny "microchannels" has led to formulas and models that will help engineers design systems to cool high-power electronics in electric and hybrid cars, aircraft, computers and other devices.

Advance brings low-cost, bright LED lighting closer to reality

Researchers at Purdue University have overcome a major obstacle in reducing the cost of "solid state lighting," a technology that could cut electricity consumption by 10 percent if widely adopted.

Tiny refrigerator taking shape to cool future computers

Researchers at Purdue University are developing a miniature refrigeration system small enough to fit inside laptops and personal computers, a cooling technology that would boost performance while shrinking the size of computers.

Purdue, India researchers form center on nanomaterials and energy

Researchers at Purdue's Birck Nanotechnology Center are collaborating with Indian colleagues at the Jawaharlal Nehru Center for Advanced Scientific Research and General Electric Co.'s John F. Welch India Technology Center to launch a center focused on how advancements in nanomaterials can address growing energy needs.

About the research

BNC researchers seek to understand and exploit micro- and nanoscale phenomena in active devices and passive components that transfer heat or convert energy from one form to another. These endeavors promise to yield more efficient and higher performance electronics, light emitting diodes for solid-state lighting, solar cells utilizing readily available, low toxicity elements without compromising efficiency, compact and environmentally friendly solid-state refrigeration, and solid-state generators that convert a heat flux directly to electric power. Progress in these applications demands an understanding of the coupling between phonons, electrons and photons at length scales comparable to their wavelengths and scattering lengths, and at timescales ranging from femtoseconds to microseconds.


Principal Investigators

JP Allain

Radiation Surface Science, Directed Radiation Synthesis, Plasma-surface interactions in fusion systems, Radiation interactions with soft matter, Ion scattering spectroscopy, Biocompatible magnetic nanostructures

Jean Paul Allain

Radiation Surface Science, Directed Radiation Synthesis, Plasma-surface interactions in fusion systems, Radiation interactions with soft matter, Ion scattering spectroscopy, Biocompatible magnetic nanostructures

Chen

Low dimensional and nanoscale physics, graphene, nano devices for radiation detection and fluid sensors, quantum physics and quantum information with cold atoms and molecules

Yong P. Chen

Low dimensional and nanoscale physics, graphene, nano devices for radiation detection and fluid sensors, quantum physics and quantum information with cold atoms and molecules

Choi

Optical spectroscopy of nanomaterials, Diagnostics and therapeutics, Nanoscale energy conversion, Bio-inspired nanomotors

Jong Hyun Choi

Optical spectroscopy of nanomaterials, Diagnostics and therapeutics, Nanoscale energy conversion, Bio-inspired nanomotors

Chen

Nanoelectronics, Nanoscale electronic transport, Spin electronics, nanoscale energy conversion, molecular electronics and mesoscopic superconductivity

Supriyo Datta

Nanoelectronics, Nanoscale electronic transport, Spin electronics, nanoscale energy conversion, molecular electronics and mesoscopic superconductivity

Fisher

We work on a broad range of problems, primarily involving the transport and conversion of energy carried by electrons, phonons, and photons. We seek to solve problems with high importance to applications in clean energy (e.g., direct energy conversion, hydrogen storage) and in major industrial segments (e.g., micro/nanoelectronics, sensors).

Tim Fisher

We work on a broad range of problems, primarily involving the transport and conversion of energy carried by electrons, phonons, and photons. We seek to solve problems with high importance to applications in clean energy (e.g., direct energy conversion, hydrogen storage) and in major industrial segments (e.g., micro/nanoelectronics, sensors).

JP Allain

Ferroelectric Random Access Memories, Rechargeable Lithium-Ion Batteries, Solid Oxide Fuel Cells, Solid State Light Emitting Devices, Thermoelectric Generators

Edwin Garcia

Ferroelectric Random Access Memories, Rechargeable Lithium-Ion Batteries, Solid Oxide Fuel Cells, Solid State Light Emitting Devices, Thermoelectric Generators

Garimella

Thermal microsystems, energy efficiency in computing and electronics, micro- and nano-scale transport phenomena, electromechanical microfluidic actuation, high-performance compact cooling technologies, and materials processing

Suresh V. Garimella

Thermal microsystems, energy efficiency in computing and electronics, micro- and nano-scale transport phenomena, electromechanical microfluidic actuation, high-performance compact cooling technologies, and materials processing

Gray

Computer modeling of photovoltaic devices, semiconductor device physics

Jeffery L Gray

Computer modeling of photovoltaic devices, semiconductor device physics

Lundstrom

The physics of electronic devices, especially nanoscale transistors and novel devices for computing, communication, and energy conversion and storage

Mark Lundstrom

The physics of electronic devices, especially nanoscale transistors and novel devices for computing, communication, and energy conversion and storage

Chen

Computational fluid dynamics and heat transfer, Finite volume methods and unstructured mesh techniques, Numerical methods for radiative transport, Reduced order modeling, Numerical methods for multiphase flows, Heat and mass transfer in micromanufacturing, Microscale heat transfer, Electronics cooling, Applications in aerospace, automotive, glass, and chemical-process industries

Jayathi Murthy

Computational fluid dynamics and heat transfer, Finite volume methods and unstructured mesh techniques, Numerical methods for radiative transport, Reduced order modeling, Numerical methods for multiphase flows, Heat and mass transfer in micromanufacturing, Microscale heat transfer, Electronics cooling, Applications in aerospace, automotive, glass, and chemical-process industries

Ruan

Quantum dot solar cell materials, thermal radiation in photonic crystals, nano-thermoelectrics

Xiulin Ruan

Quantum dot solar cell materials, thermal radiation in photonic crystals, nano-thermoelectrics

Sands

Energy conversion materials and devices; nanostructured materials and nanofabrication; GaN heterostructures and light-emitting devices; solid-state lighting; nanostructured thermoelectric materials; solid-state power generators and cooling devices; chemical and physical vapor deposition; electrochemical synthsis of nanostructured materials; pulsed laser deposition; heterogeneous integration; contacts

Timothy D. Sands

Energy conversion materials and devices; nanostructured materials and nanofabrication; GaN heterostructures and light-emitting devices; solid-state lighting; nanostructured thermoelectric materials; solid-state power generators and cooling devices; chemical and physical vapor deposition; electrochemical synthsis of nanostructured materials; pulsed laser deposition; heterogeneous integration; contacts

Schwartz

Modelling of solar cells of all types, Direct energy conversion, Solid state devices.

Richard J. Schwartz

Modelling of solar cells of all types, Direct energy conversion, Solid state devices.

Woodall

Exploratory compound semiconductor materials and devices for high speed and energy conversion.

Jerry M. Woodall

Exploratory compound semiconductor materials and devices for high speed and energy conversion.

Xu

1. Energy transfer in nanoscale energy conversion materials, including nano-particle/quantum dot, nanowire, thin film, and superlattice thermoelectric and photovoltaic materials.
2. Ultrafast optics, fundamentals of ultrafast light-matter interactions.
3. Nano-optics (near-field optics), field concentration and enhancement at nanoscale, e.g., using nanoscale optical antenna.
4. Ultrafast and nanoscale optical diagnostic methods for investigation of energy transfer processes in nanomaterials.
5. Laser-based micro- and nano-manufacturing, including parallel nanolithography, nanomaterials growth, and laser fabrication of MEMS.

Xianfan Xu

1. Energy transfer in nanoscale energy conversion materials, including nano-particle/quantum dot, nanowire, thin film, and superlattice thermoelectric and photovoltaic materials.
2. Ultrafast optics, fundamentals of ultrafast light-matter interactions.
3. Nano-optics (near-field optics), field concentration and enhancement at nanoscale, e.g., using nanoscale optical antenna.
4. Ultrafast and nanoscale optical diagnostic methods for investigation of energy transfer processes in nanomaterials.
5. Laser-based micro- and nano-manufacturing, including parallel nanolithography, nanomaterials growth, and laser fabrication of MEMS.

 

BNC/NCN affiliated publications

(see all)

Chen, T.L. and Garimella, S.V. Local heat transfer distribution and effect of instabilities during flow boiling in a silicon microchannel heat sink. International Journal of Heat and Mass Transfer, 54(15-16), 3179-3190.

Harirchian, T. and Garimella, S.V. Boiling Heat Transfer and Flow Regimes in Microchannels-A Comprehensive Understanding. Journal of Electronic Packaging, 133(1).

Hodson, S.L., Bhuvana, T., Cola, B.A., Xu, X.F., Kulkarni, G.U. and Fisher, T.S. Palladium Thiolate Bonding of Carbon Nanotube Thermal Interfaces. Journal of Electronic Packaging, 133(2).

Huang, Z., Fisher, T. and Murthy, J. An atomistic study of thermal conductance across a metal-graphene nanoribbon interface. Journal of Applied Physics, 109(7).

Kumari, N. and Garimella, S.V. Characterization of the heat transfer accompanying electrowetting or gravity-induced droplet motion. International Journal of Heat and Mass Transfer, 54(17-18), 4037-4050.

Migliaccio, C.P., Dhavaleswarapu, H.K. and Garimella, S.V. Temperature measurements near the contact line of an evaporating meniscus V-groove. International Journal of Heat and Mass Transfer, 54(7-8), 1520-1526.

Migliaccio, C.P. and Garimella, S.V. Evaporative heat and mass transfer from the free surface of a liquid wicked into a bed of spheres. International Journal of Heat and Mass Transfer, 54(15-16), 3440-3447.

Ranjan, R., Murthy, J.Y. and Garimella, S.V. A microscale model for thin-film evaporation in capillary wick structures. International Journal of Heat and Mass Transfer, 54(1-3), 169-179.

Ranjan, R., Murthy, J.Y., Garimella, S.V. and Vadakkan, U. A numerical model for transport in flat heat pipes considering wick microstructure effects. International Journal of Heat and Mass Transfer, 54(1-3), 153-168.

Saha, B., Sands, T.D. and Waghmare, U.V. Electronic structure, vibrational spectrum, and thermal properties of yttrium nitride: A first-principles study. Journal of Applied Physics, 109(7).

Singh, D., Murthy, J.Y. and Fisher, T.S. Phonon Transport Across Mesoscopic Constrictions. Journal of Heat Transfer-Transactions of the Asme, 133(4).

 

BNC-affiliated grants and contracts

(see all)

Fisher, Timothy, from Raytheon, $90,000, "Development of Nano Thermal Interface Materials."

Agrawal, Rakesh, from National Science Foundation, $300,000, "IGERT:  The Solar Economy IGERT (SEIGERT)."

Fisher, Timothy, from Jawaharlal Nehru Centre for Adv Sci Res, $16,400, "The India-US Joint Networked Centre on Nanomaterials for Energy."

Garimella, Suresh V., from National Science Foundation, $50,000, "NSF Industry/University Cooperative Research Center on Compact, High-Performance Cooling Technologies Research."

Sands, Timothy D., from University Of California - Santa Cruz, $50,000, "Nanostructured Metal/Semiconductor Materials for Thermoelectric Generators."

Fisher, Timothy, from Raytheon, $707,735, "Development of Nano Thermal Interface Materials."

BNC Research

 

For More Information,
Please Contact:

Monica M.C. Allain, Ph.D.
Managing Director
Ph: 765-494-5138
mallain@purdue.edu

 

Links

 

Join Us

Nano/Energy Journal Club: If you are a Purdue student, research staff member or faculty member interested in the nanoscience and technology of energy conversion, please join us for the "Nano/Energy Journal Club", an informal gathering over lunch featuring discussions and critiques of current research: Fridays at noon in 1001 BRK. For more information, please contact Deborah Starewich