Houston students develop underwater robot with energy-efficient buoyancy control

new tech

The project was part of a year-long senior design capstone by six students, known as Team Bay-Max, in Rice's Oshman Engineering Design Kitchen. Photo by Jeff Fitlow/Rice University

A team of Rice University engineering students has developed a new way for underwater robots to move around, save power and work more efficiently and quietly.

The robot uses reversible hydrogen fuel cell-based buoyancy control devices that convert water into hydrogen and oxygen (and the reverse) using electricity. Traditional underwater robots use thrusters or large pumps and propellers to change and hold depth, which can be heavy, have higher costs and use more energy. The use of reversible hydrogen fuel cells with balloons, allows the new robot to smoothly adjust its depth with less energy usage, according to a statement from Rice.

The project was part of a year-long senior design capstone by six students, known as Team Bay-Max, in Rice's Oshman Engineering Design Kitchen.

The students—Andrew Bare, Spencer Darwall, Noah Elzner, Rafe Neathery, Ethan Peck and Dan Zislis— won second place in the Willy Revolution Award for Outstanding Innovation at the Huff OEDK Engineering Design Showcase held at the Ion last month.

“Having spent a year on it now and putting so much time into it, getting to see the result of all that work come together is really rewarding,” Peck said in the statement.

“With a project like this, integration was critical,” Zislis added. “Another takeaway for me is the importance of determining a clear scope for any given project. With this robot, we could have focused on a lot of different things. For instance, we could have worked on improving fuel cell efficiency or making a robotic arm. Instead, we chose to keep these other elements simple so as not to divert focus away from the main part, which is the buoyancy control device. This kind of decision-making process is not just part of good engineering, but it’s relevant with everything in life.”

Elzner, for instance, focused on the dashboard that the robot feeds information to as it collects data from different sensors. It displays core system information, real-time graphs of the robot’s location and a simulation of its relative orientation, according to the statement.

Darwall, took a " deep dive into control theory and learn(ed) new software" to incorporate the video game joystick that allows the robot to combine manual control with an automatic stabilizing algorithm.

The proof-of-concept robot has potential applications in environmental monitoring, oceanographic research, and military and industrial tasks, according to Rice.

The team based the project on an academic paper by Houston researchers that showed that fuel cell-enabled depth control could reduce autonomous underwater vehicles’ energy consumption by as much as 85 percent.

It was authored by Rice professor Fathi Ghorbel and members of the University of Houston's Zheng Chen lab.

“This collaborative research aims to develop tetherless continuum soft engines that utilize reversible proton exchange membrane fuel cells and water electrolyzers to drive volume-mass transformation," Ghorbel said in a statement. "Through this design project, the BayMax team proved the efficacy of this technology in AUV interaction with the physical world.”

Ghorbel, Rice mechanical engineering lecturer David Trevas, and Professor in the Practice, Electrical and Computer and Engineering Gary Woods mentored the team.

Last month Rice also held its 24th annual Rice Business Plan Competition, doling out more than $1.5 million in investment and cash prizes to the top teams. Click here to see what student-led startups took home awards.

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The gift sets up a scholarship, an endowed chair, and a lecture series. Photo via UH.edu

University of Houston receives $6.5M to go toward supporting equity, social justice, and more

funding moves

A recent gift to the University of Houston will provide support to a couple colleges on campus, including an endowed chair, a scholarship, and a lecture series.

Thomas Michael Panos Family Estate donated $4.5 million — and was matched with an additional $2 million by the University's new "$100 Million Challenge" Aspire Fund. It's the first matched gift of the new fund. The gift includes $2 million to create the Panos Family Endowed Chair in Mechanical Engineering, $2 million to establish a scholarship endowment beginning in 2022 to support need- and merit-based scholarships for full-time undergraduate or graduate students across UH, and $500,000 to support "The Panos Family Endowed Lecture in Equity and Social Justice" in the College of Liberal Arts and Social Sciences.

"We are incredibly grateful for the generosity of the Thomas Michael Panos Family Estate. This significant gift will not only help fuel academic success through innovation and discovery, but will support our ability to recruit renowned faculty and expand thought leadership," says Paula Myrick Short, UH senior vice president for academic affairs and provost, in the release. "The additional support for an equity and social justice lecture series is an especially timely and important part of our efforts to increase visibility around these issues."

Thomas Michael Panos emigrated to Houston from Greece and only had a sixth-grade education. His sons — Mike and Gus Panos — both earned college degrees in engineering.

"They were the kind of people who would help anybody," says Scott Harbers, who lived next door to the Panos family decades ago in what is now Midtown Houston, in the release. "As a family of immigrants, I know they would appreciate the diversity of the student body at the University of Houston. They had a tremendous interest in education and equal rights. I'm hopeful that this gift will help advance the lives of students who need help to complete their studies."

The $100 Million Challenge initiative was established in fall of 2019 thanks to an anonymous $50 million donation to the school, and the campaign is set on inspiring another $50 million in support of four areas that will address issues with major societal impact: sustainable energy and energy security, resilient infrastructure and smart cities, population health, and global engagement. Donors who commit $2 million to go toward an endowed chair will have their gifts matched through the program.

"The '$100 Million Challenge' is a transformational initiative to propel our academic enterprise to unprecedented levels of distinction, and this first matching gift launches us," says Eloise Brice, vice president for university advancement, in the release. "The work and research being done at UH, and accelerated through the Challenge, will have a tremendous impact on the quality of life for all Houstonians."

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UH researchers develop breakthrough material to boost efficiency of sodium-ion batteries

eyes on clean energy

A research lab at the University of Houston has developed a new type of material for sodium-ion batteries that could make them more efficient and boost their energy performance.

Led by Pieremanuele Canepa, Robert Welch assistant professor of electrical and computer engineering at UH, the Canepa Research Laboratory is working on a new material called sodium vanadium phosphate, which improves sodium-ion battery performance by increasing the energy density. Energy density is the amount of energy stored per kilogram, and the new material can do so by more than 15 percent. With a higher energy density of 458 watt-hours per kilogram — compared to the 396 watt-hours per kilogram in older sodium-ion batteries — this material brings sodium technology closer to competing with lithium-ion batteries, according to the researchers.

The Canepa Lab used theoretical expertise and computational methods to discover new materials and molecules to help advance clean energy technologies. The team at UH worked with the research groups headed by French researchers Christian Masquelier and Laurence Croguennec from the Laboratoire de Reáctivité et de Chimie des Solides, which is a CNRS laboratory part of the Université de Picardie Jules Verne, in Amiens France, and the Institut de Chimie de la Matière Condensée de Bordeaux, Université de Bordeaux, Bordeaux, France for the experimental work on the project.

The researchers then created a battery prototype using the new materia sodium vanadium phosphate, which demonstrated energy storage improvements. The material is part of a group called “Na superionic conductors” or NaSICONs, which is made to let sodium ions move in and out of the battery during charging and discharging.

“The continuous voltage change is a key feature,” Canepa says in a news release. “It means the battery can perform more efficiently without compromising the electrode stability. That’s a game-changer for sodium-ion technology.”

The synthesis method used to create sodium vanadium phosphate may be applied to other materials with similar chemistries, which could create new opportunities for advanced energy storage. A paper of this work was published in the journal Nature Materials.

"Our goal is to find clean, sustainable solutions for energy storage," Canepa adds. "This material shows that sodium-ion batteries can meet the high-energy demands of modern technology while being cost-effective and environmentally friendly."

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This article originally appeared on EnergyCapital.

Houston hospital names leading cancer scientist as new academic head

new hire

Houston Methodist Academic Institute has named cancer clinician and scientist Dr. Jenny Chang as its new executive vice president, president, CEO, and chief academic officer.

Chang was selected following a national search and will succeed Dr. H. Dirk Sostman, who will retire in February after 20 years of leadership. Chang is the director of the Houston Methodist Dr. Mary and Ron Neal Cancer Center and the Emily Herrmann Presidential Distinguished Chair in Cancer Research. She has been with Houston Methodist for 15 years.

Over the last five years, Chang has served as the institute’s chief clinical science officer and is credited with strengthening cancer clinical trials. Her work has focused on therapy-resistant cancer stem cells and their treatment, particularly relating to breast cancer.

Her work has generated more than $35 million in funding for Houston Methodist from organizations like the National Institutes of Health and the National Cancer Institute, according to the health care system. In 2021, Dr. Mary Neal and her husband Ron Neal, whom the cancer center is now named after, donated $25 million to support her and her team’s research on advanced cancer therapy.

In her new role, Chang will work to expand clinical and translational research and education across Houston Methodist in digital health, robotics and bioengineered therapeutics.

“Dr. Chang’s dedication to Houston Methodist is unparalleled,” Dr. Marc L. Boom, Houston Methodist president and CEO, said in a news release. “She is committed to our mission and to helping our patients, and her clinical expertise, research innovation and health care leadership make her the ideal choice for leading our academic mission into an exciting new chapter.”

Chang is a member of the American Association of Cancer Research (AACR) Stand Up to Cancer Scientific Advisory Council. She earned her medical degree from Cambridge University in England and completed fellowship training in medical oncology at the Royal Marsden Hospital/Institute for Cancer Research. She earned her research doctorate from the University of London.

She is also a professor at Weill Cornell Medical School, which is affiliated with the Houston Methodist Academic Institute.

Texas A&M awarded $1.3M federal grant to develop clean energy tech from electronic waste

seeing green

Texas A&M University in College Station has received a nearly $1.3 million federal grant for development of clean energy technology.

The university will use the $1,280,553 grant from the U.S. Department of Energy to develop a cost-effective, sustainable method for extracting rare earth elements from electronic waste.

Rare earth elements (REEs) are a set of 17 metallic elements.

“REEs are essential components of more than 200 products, especially high-tech consumer products, such as cellular telephones, computer hard drives, electric and hybrid vehicles, and flat-screen monitors and televisions,” according to the Eos news website.

REEs also are found in defense equipment and technology such as electronic displays, guidance systems, lasers, and radar and sonar systems, says Eos.

The grant awarded to Texas A&M was among $17 million in DOE grants given to 14 projects that seek to accelerate innovation in the critical materials sector. The federal Energy Act of 2020 defines a critical material — such as aluminum, cobalt, copper, lithium, magnesium, nickel, and platinum — as a substance that faces a high risk of supply chain disruption and “serves an essential function” in the energy sector.

“DOE is helping reduce the nation’s dependence on foreign supply chains through innovative solutions that will tap domestic sources of the critical materials needed for next-generation technologies,” says U.S. Energy Secretary Jennifer Granholm. “These investments — part of our industrial strategy — will keep America’s growing manufacturing industry competitive while delivering economic benefits to communities nationwide.”