Pictured above – Tennessee Tech faculty and student researchers are shown in the university’s Propulsion, Power, and Thermal Systems Laboratory.

Aerospace and aviation agencies and airlines around the globe have set an ambitious goal of reaching net-zero emissions by 2050

Cookeville – NASA has selected Tennessee Tech University engineering researchers to lead a team of universities and industry partners to help solve one of aviation’s key challenges for the future of commercial air travel: zero-emission aircraft by 2050.

With an estimated budget of $8 million, the CarbonLess Electric AviatioN (CLEAN) project is led by Rory Roberts, Ph.D., associate professor of mechanical engineering and head of the Propulsion, Power and Thermal Systems Laboratory at Tech. He is joined by two other Tech faculty members, Bruce Jo, Ph.D., associate professor of mechanical engineering and Ahmad Vaselbehagh, Ph.D., assistant professor of mechanical engineering.

Additional team members include Tennessee State University, The Ohio State University, University of Dayton, University of Washington – Bothell, Boeing Research & Technology, Raytheon Technologies Research Center, and Special Power Sources.

NASA announced the funding last week under its University Leadership Initiative in the agency’s Aeronautics Research Mission Directorate, which is in final negotiations with teams for funding up to four years.

“The University Leadership Initiative is an integral part of our research portfolio,” said Bob Pearce, associate administrator for the Aeronautics Research Mission Directorate at NASA Headquarters in Washington. “The multidisciplinary teams are directly contributing to our priorities and even leading the exploration of solutions beyond our current portfolio.” 

Electrifying passenger planes like a Boeing 737 is very challenging, according to Roberts.

“The energy needed for takeoff alone is the electrical equivalent of powering 6,000 homes,” said Roberts. “There just isn’t going to be a battery that can do that, so you have to think out of the box and start thinking about the entire aircraft and how to accomplish that. Huge technological breakthroughs are needed across all these systems to develop electric flight.”

That’s where CLEAN comes in. Roberts pulled together the CLEAN team of university researchers with expertise in the various systems and components needed to start designing an entire aircraft. They will specifically explore a preliminary design for an electrified, 150-passenger aircraft that uses an ammonia-based integrated propulsion, power and thermal management system.

“We’re at a point now where we can bring all this research together to design an aircraft, with the goal of bringing it to market one day,” Roberts added. 

The innovation the team and the University Leadership Initiative will bring to the aerospace industry extends beyond technology to the education of a future workforce, according to NASA. 

“As we look to future growth in Advanced Air Mobility and an increasing emphasis on creating truly sustainable aviation, it’s important we involve today’s students in helping us solve tomorrow’s challenges,” said Koushik Datta, University Leadership Initiative project manager.

The CLEAN team will directly employ 98 undergraduate and graduate students as researchers across the five universities, with 58 opportunities at Tech alone, according to Roberts. That’s good news for Tech undergraduate students, as the aerospace concentration in the mechanical engineering program is rapidly growing.

“Aerospace continues to expand in Tennessee and Tech is poised to support it,” said Joseph C. Slater, dean of the College of Engineering at Tennessee Tech. “When federal agencies invest in university-industry partnerships conducting innovative and disruptive research, there is both a technological impact and workforce development impact. Our students will learn the skills and future technologies the aerospace industry will depend on as they develop next-generation aircraft and that has enormous potential.”

To learn more about aerospace research at Tennessee Tech and to receive updates on CLEAN, visit the Tennessee Tech Propulsion, Power, and Thermal Systems Laboratory website at https://sites.tntech.edu/ppats/.

To learn more about Tennessee Tech College of Engineering’s aerospace program, visit https://www.tntech.edu/engineering/programs/me/ve-conc-1.php.

Photo courtesy of Tennessee Tech.

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