University of Texas at Dallas researchers and their colleagues at other institutions are investigating ways to harvest energy from such diverse sources as mechanical vibrations, wasted heat, radio waves, light and even movements of the human body.
UT Dallas graduate student Jaeah Lee discusses her energy-related, nanotechnology research with Virginia Tech graduate student Yu Zhao during a research poster presentation at Energy Summit 2013.University of Texas at Dallas researchers and their colleagues at other institutions are investigating ways to harvest energy from such diverse sources as mechanical vibrations, wasted heat, radio #
The goal is to develop ways to convert this unused energy into a form that can self-power the next generation of electronics, eliminating or reducing the need for bulky, limited-life batteries.
Beyond the more familiar wind and solar power, energy harvesting has a wide range of potential applications. These include: powering wireless sensor networks placed in “intelligent” buildings, or in hard-to-reach or dangerous areas; monitoring the structural health of aircraft; and biomedical implants that might transmit health data to your doctor or treat a chronic condition.
At a recent scientific conference held at UT Dallas, experts from academia, industry and government labs gathered to share their latest research on energy harvesting. Energy Summit 2013 focused on research initiatives at UT Dallas, Virginia Tech and Leibniz University in Germany, which form a consortium called the Center for Energy Harvesting Materials and Systems (CEHMS).
Founded in 2010, CEHMS is an Industry/University Cooperative Research Center funded in part by the National Science Foundation. It includes not only academic institutions, but also corporate members who collaborate on research projects and also provide funding for the center. Roger Nessen, manager of sales and marketing at Exelis Inc. is chairman of the CEHMS advisory board.
The keynote speaker for Energy Summit 2013 was Brian Bradshaw. He is a portfolio manager and investment committee member of BP Capital, an investment firm run by T. Boone Pickens. BP Capital trades and invests in energy commodities and energy-related businesses.
During his presentation, Bradshaw discussed some of BP Capital's general strategies and priorities in energy investment, and then took questions from the audience of scientists, engineers and students. The Q&A covered topics such as the economics of natural gas powered vehicles and alternative energy sources.
Bradshaw had some advice for students, faculty and entrepreneurs who are thinking about getting into the energy business.
“There are going to be huge opportunities in the coming years,” he said. “The intensity of people and assets being put into extracting oil from shale, domestically and ultimately around the world, is not going away. I think there's room for business, technical and innovative-type thinking along each step of the supply chain.”
“The CEHMS consortium is a diverse group with expertise at all levels, from fundamental chemistry and materials science, to developing new models and fabrication techniques, to working on product-centered areas,” said Dr. Dennis Smith, co-director of CEHMS and the Robert A. Welch Distinguished Chair in Chemistry at UT Dallas.
“Developing energy-harvesting technology is a necessary step toward more widespread use of wireless sensor networks, and will enable new types of self-powered applications. Being a member of this consortium provides great benefit and opportunities to UT Dallas researchers and students, as well as local companies.”
The two-day Energy Summit covered a wide range of topics, including projects from laboratories in UT Dallas' School of Natural Sciences and Mathematics and the Erik Jonsson School of Engineering and Computer Science.
For example, Dr. Mario Rotea, the Erik Jonsson Chair and head of the Department of Mechanical Engineering at UT Dallas, discussed some of his work aimed at advancing the development of wind energy systems. He represents UT Dallas in a proposed new consortium of universities and companies called WindSTAR that would collaborate with CEHMS on wind energy science and technology issues.
On the chemistry front, Smith's synthetic chemistry lab is working with advanced materials that use piezoelectrics. If a piezoelectric material is deformed by a mechanical stress – such as stepping on it or subjecting it to vibrations – it produces an electric current.
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