Wind turbines are massive, with a single turbine blade measuring up to 350 feet (about 110 meters), longer than the wingspan of some commercial airplanes. At its highest point, a blade can be 850 feet (260 meters) off the ground, almost reaching the height of Eiffel Tower. When UMBC engineer Soobum Lee looks up at these turbines, generating energy in fields and even offshore, he thinks about their size as an enormous opportunity, and also a challenge.

Lee, associate professor of mechanical engineering, studies energy harvesting, but not in a way that most casual observers would connect with wind turbines. He researches how vibrations can power portable devices on a very small scale, and he develops devices that convert those subtle vibrations into energy.

A few years ago, Lee began exploring how to harvest energy from the rotation of vehicle tires. This led him to begin looking at the spinning motion of wind turbines, and the additional small vibrations that turbines make as they spin continuously. He came up with a novel idea: using these small vibrations—not previously harnessed for energy—to power transmitters that could send sensor data to a wind turbine’s operation and maintenance systems.

Lee explains that wind turbines have sensors on their blades to alert their operators if the blade gets damaged, such as by birds or lightning, or if there is a malfunction or maintenance issue. For example, icicles can form on turbine blades, changing their aerodynamics. Or, the blade could be vibrating abnormally, indicating a more serious mechanical or structural issue in the blade.

Until now, these sensors have been powered by batteries that need to be changed every two years or so. Changing the batteries is time-consuming and can be dangerous for people maintaining the turbines, as they need to climb up the turbines, hundreds of feet in the air, to access multiple sensors on one blade.

“The sensors are to help with maintenance,” says Lee. “If they also create a maintenance need, it’s a problem.” He wondered, what if you could design a sensor that wouldn’t require new batteries?

Bringing research to consumers

Over the past 7 years, UMBC faculty from engineering and the sciences to the arts have worked to commercialize their research, to bring innovative technologies to companies and consumers. Knowing that this can be a challenging transition, UMBC and the State of Maryland have created a range of initiatives to help faculty pursue entrepreneurship opportunities. One core opportunity is the Maryland Innovation Initiative (MII), established by the state and five research institutions, including UMBC, to promote research commercialization.

A unique feature of the MII program is the introduction of university “site miners” to facilitate the application process for faculty inventors. These commercialization experts support faculty with preparing proposals and advocate for projects in the review process. UMBC site miner David Fink, entrepreneur in residence, says, “The MII program is the most significant factor in the increased commercialization of UMBC-owned intellectual property.” Sixteen companies have been formed by UMBC faculty since the start of MII.

Since 2013, Lee has applied for three MII grants. His first two attempts were not successful but helped him grow his proposal. On his third try, he received a phase one grant to develop his vibration-powered sensor technology.

Through bwtech@UMBC, UMBC’s research and technology park, Lee connected with Pranay Kohli, an energy sector executive with experience working with companies and clients around the world. In 2018, Lee and Kohli founded ACTIVEcharge, LLC, a startup that develops solutions to autonomously monitor wind turbines.

“Soobum and I have benefited tremendously from the MII program. Although we had the technology and the business skills, what MII and bwtech provided us was the ecosystem of professionals who have guided us along the way,” says Kohli, CEO of ACTIVEcharge. “That has opened up so many doors for us as we move forward to commercializing the solution.”

Technology with an impact

Lee’s work has continued to move forward since he received the MII grant. In the lab, he and his students have developed a power management circuit and have integrated it with a power source, sensor, and data transmitter that is about six inches tall and weighs about two pounds.

The sensor provides the signal to the transmitter, and the transmitter sends the data to a receiver. This process uses the energy produced by the attached mechanical generator, powered by vibrations from turbine blades. No external source of energy is needed. It is also designed to sit inside the blades, so it is completely protected from the elements and does not interfere with the blade aerodynamics.

Lee and Kohli hope that, in the next two to four years, their integrated solution will be installed on turbine blades across the country and internationally. Their goal is to provide turbine maintenance crews with near-real-time data that can support their work in a way that doesn’t create additional labor or physical risk and prevents potential catastrophic events.

Sustainable energy projects are growing in the U.S., and now is an important moment to make technology improvements that will boost that growth further, Lee notes. He shares, “I want to make things even better than they are now.”

Banner image: Wind turbines. Photo by Kam Abbott, used under CC BY 2.0.

UMBC is proud to be named a 2019 – 2020 Fulbright Top Producing Institution, an honor granted by the U.S. Department of State’s Bureau of Educational and Cultural Affairs. The Fulbright program is the U.S. government’s flagship international exchange program. Over 2,200 U.S. students are awarded Fulbright grants annually, from hundreds of colleges and universities. Only a small portion of these institutions are designated as top producers each year. UMBC is one of 45 doctoral universities nationwide and three in Maryland to receive a Fulbright Top Producing Institution designation for 2019 – 2020. Over 43% of UMBC’s Fulbright U.S. Student Program applicants earned awards. This is the third-highest proportion among all top-producing doctoral institutions, speaking to the quality of UMBC student applications.

“The Fulbright Top Producing Institution designation honors our entire UMBC community,” reflects President Freeman Hrabowski. “It recognizes how UMBC prepares students to get beyond their comfort zones and to tackle global challenges through engagement with communities around the world.”

UMBC global ambassadors

In the last decade, UMBC has received over 60 Fulbright U.S. Student Program awards. In the 2019 – 2020 academic year, fourteen students and alumni earned awards to teach, conduct research, or pursue graduate studies in Africa, Asia and the Pacific, South America, and Europe. 

“These Fulbrighters serve as citizen ambassadors for the United States in their host communities, and we will benefit from the skills, knowledge, and global connections they build on their exchanges long after they return home,” shares Marie Royce, assistant secretary of state for educational and cultural affairs.

This year, 27 UMBC students and recent alumni, a record number, have been selected as Fulbright semifinalists. This selection recognizes their academic merit, leadership potential, and vision to create solutions and serve as leaders around the world. 

Support on the Fulbright journey

Each year students must complete a rigorous application process to apply for a Fulbright. They receive support from Brian Souders, M.A. ‘19, TESOL, and Ph.D. ’09, language, literacy and culture, UMBC’s Fulbright program advisor, as well as faculty and staff across campus. This process asks applicants in all majors to provide evidence of their academic excellence, commitment to global community partnerships, and a record of leadership through service. 

“Dedicated UMBC faculty and staff mentor students and alumni annually from across the campus, from film-making and anthropology to quantum physics to mechatronics,” says Souders. “They support them through the application process, and help them prepare their work to reflect their academic purpose and goals for this globally prestigious and life-changing award.” 

Study abroad as a pathway to Fulbright

Many future Fulbright recipients begin their international experience with study abroad through International Education Services. This UMBC office offers students opportunities to study and research internationally as early as the summer before their incoming year. In UMBC’s 2019 – 2020 Fulbright class, ten out of fourteen recipients had already pursued research and education abroad. For the 2018 – 2019 class, that number was six out of eight recipients. 

“Studying abroad gives students that first foundational taste of being in a new global environment,” shares Caylie Middleton, associate director of education abroad. “International academic, social, and cultural experiences help develop the curiosity and skills that prepare students for prestigious international opportunities in the future.”

Fulbrighters have also participated in other international opportunities, including with student organizations like Engineers Without Borders, class-based online international exchanges like Global Engineering, faculty-led study abroad courses, and online language exchanges, which UMBC offers in Spanish and Japanese. 

Souders is proud that so many Retrievers are accessing opportunities for international learning experiences, through Fulbright and a broad range of other UMBC international programs. The Top Producer accolade is a milestone that represents an important trend—more UMBC students and recent alumni are researching, learning, and teaching abroad each year.

“Retrievers have a deep understanding of the value of diverse experiences, identities, and cultures,” Souders says. “They know that the world they dream of can only be made possible by reaching together in mutual understanding.”

Feature image: Souders with UMBC’s 2019 – 2020 Fulbright U.S. Student recipients. All photos by Marlayna Demond ’11 unless otherwise noted.

The BMA’s Department of Africa, Asia, the Americas, and Pacific Islands is seeking a Graduate level Intern studying the historic art and material culture of the indigenous Americas. Preference will be given to candidates with specialization in pre-Columbian art.

Save-a-Swipe is a partnership between Retriever Essentials, Chartwells, and Campus Card Services which allows you to donate 5 or 10 swipes from your meal plan that can be used by students who are experiencing food insecurity. Please share your extra meal swipes with your peers in need before the swipes expire.

Sign up to donate your excess meals until Feb 14, 2020, Friday. 

Click here or go to the link below to make your donation. 

Have you met Ally?  Sign up for a proper introduction with Instructional Technology's training here:  https://my3.my.umbc.edu/groups/instructional-technology/events/79747

When:  February 12th at noon

Where: Online - from the comfort of where you access Blackboard!

From Instructional Technology on the what-to-do:

Come to this webinar and learn about Ally and what it can do to help you remediate course materials to improve accessibility for all. This orientation will showcase Ally’s powerful file conversion tools that provide alternative formats and expand students' options about how they want to engage with content.

This session will also help you move beyond content remediation into a more proactive approach, one where you find or create more accessible course materials from day one.

Finally, we will review strategies on how to create accessible content, including tools to help with Word documents, PDFs, PowerPoint, lecture videos, and images.

Workshop Objectives

Upon completion of the workshop, participants should be able to:

• Review key barriers that hinder the accessibility of content.
• Interpret Ally indicators and reports to effectively remediate course materials. 
• Review Ally's alternative formats available to students.
• Identify accessibility tools that help you create accessible content. 
• Create a basic strategy to address content accessibility in your course, including which tools you plan to use.

The webinar will take place in a Blackboard Collaborate virtual conference room. Use the link below to enter the webinar up to 15 minutes before the start time:

For more information about Ally at UMBC, please see this announcement and the FAQ collection.