The robots, developed by UH researchers, will provide a safer and more cost effective alternative to pipeline inspections, which are traditionally performed by human divers and require a great deal of time and money. Photo via UH.edu

Two professors at the University of Houston have developed an autonomous subsea vehicle that aims to decrease the number and severity of oil spills.

Known as SmartTouch technology, the Remote Operated Vehicles (ROVs) use smart touch sensors, video cameras and scanning sonars to inspect flange bolts in subsea pipelines, which are considered to lead to increased rates of leakage, according to a release from the university.

The ROVs, developed by UH's Zheng Chen and Gangbing Song, will provide a safer and more cost effective alternative to pipeline inspections, which are traditionally performed by human divers and require a great deal of time and money.

“By automating the inspection process with this state-of-the art robotic technology, we can dramatically reduce the cost and risk of these important subsea inspections which will lead to safer operations of offshore oil and gas pipelines as less intervention from human divers will be needed,” Chen, the Bill D. Cook Assistant Professor of Mechanical Engineering, said in a statement.

The technology will also be highly accurate in monitoring corrosion, which according to Song, the John and Rebecca Moores Professor of Mechanical Engineering, is responsible for most small leaks in subsea pipelines.

The project is funded by a $960,000 grant from the Bureau of Safety and Environmental Enforcement (BSEE), which is a part of the U.S. Department of the Interior. Chen and Song are also collaborating with Houston-based Oceaneering International on the development of the ROVs, which Oceaneering specializes in. Energy giant Chevron will evaluate the technology’s future commercialization, according to UH, and preliminary studies were funded by the university's Subsea Systems Institute.

Thus far, a prototype of the ROVs has been tested in Chen's lab at UH and in Galveston Bay. Experiments showed the technology's ability to inspect the looseness of subsea bolted connections, like flange bolts.

Chen and Song see other applications for their technology, as well.

"Ultimately, the project will push the boundaries of what can be accomplished by integrating robotics and structural health monitoring technologies," Chen added in the statement. "With proper implementation, the rate of subsea pipeline failure and related accidents will decrease, and subsea operations will be free to expand at a faster rate than before.”

Earlier this summer the UH Subsea Systems Institute and SPRINT Robotics teamed up to develop a robotics training program for the energy industry known as “Robotics in Energy.” The first of a series of two-day courses debuted in May and a subsequent course, Automation & Autonomy, will launch next month. Others are expected to be rolled out in the future as part of the university's Micro-Credentialing Programs in UH Energy.

Additionally Chevron and UH partnered up again last month to announce its inaugural cohort of UH-Chevron Energy Graduate Fellows.

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Rice University spinout lands $500K NSF grant to boost chip sustainability

cooler computing

HEXAspec, a spinout from Rice University's Liu Idea Lab for Innovation and Entrepreneurship, was recently awarded a $500,000 National Science Foundation Partnership for Innovation grant.

The team says it will use the funding to continue enhancing semiconductor chips’ thermal conductivity to boost computing power. According to a release from Rice, HEXAspec has developed breakthrough inorganic fillers that allow graphic processing units (GPUs) to use less water and electricity and generate less heat.

The technology has major implications for the future of computing with AI sustainably.

“With the huge scale of investment in new computing infrastructure, the problem of managing the heat produced by these GPUs and semiconductors has grown exponentially. We’re excited to use this award to further our material to meet the needs of existing and emerging industry partners and unlock a new era of computing,” HEXAspec co-founder Tianshu Zhai said in the release.

HEXAspec was founded by Zhai and Chen-Yang Lin, who both participated in the Rice Innovation Fellows program. A third co-founder, Jing Zhang, also worked as a postdoctoral researcher and a research scientist at Rice, according to HEXAspec's website.

The HEXASpec team won the Liu Idea Lab for Innovation and Entrepreneurship's H. Albert Napier Rice Launch Challenge in 2024. More recently, it also won this year's Energy Venture Day and Pitch Competition during CERAWeek in the TEX-E student track, taking home $25,000.

"The grant from the NSF is a game-changer, accelerating the path to market for this transformative technology," Kyle Judah, executive director of Lilie, added in the release.

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This article originally ran on InnovationMap.

Rice research team's study keeps CO2-to-fuel devices running 50 times longer

new findings

In a new study published in the journal Science, a team of Rice University researchers shared findings on how acid bubbles can improve the stability of electrochemical devices that convert carbon dioxide into useful fuels and chemicals.

The team led by Rice associate professor Hoatian Wang addressed an issue in the performance and stability of CO2 reduction systems. The gas flow channels in the systems often clog due to salt buildup, reducing efficiency and causing the devices to fail prematurely after about 80 hours of operation.

“Salt precipitation blocks CO2 transport and floods the gas diffusion electrode, which leads to performance failure,” Wang said in a news release. “This typically happens within a few hundred hours, which is far from commercial viability.”

By using an acid-humidified CO2 technique, the team was able to extend the operational life of a CO2 reduction system more than 50-fold, demonstrating more than 4,500 hours of stable operation in a scaled-up reactor.

The Rice team made a simple swap with a significant impact. Instead of using water to humidify the CO2 gas input into the reactor, the team bubbled the gas through an acid solution such as hydrochloric, formic or acetic acid. This process made more soluble salt formations that did not crystallize or block the channels.

The process has major implications for an emerging green technology known as electrochemical CO2 reduction, or CO2RR, that transforms climate-warming CO2 into products like carbon monoxide, ethylene, or alcohols. The products can be further refined into fuels or feedstocks.

“Using the traditional method of water-humidified CO2 could lead to salt formation in the cathode gas flow channels,” Shaoyun Hao, postdoctoral research associate in chemical and biomolecular engineering at Rice and co-first author, explained in the news release. “We hypothesized — and confirmed — that acid vapor could dissolve the salt and convert the low solubility KHCO3 into salt with higher solubility, thus shifting the solubility balance just enough to avoid clogging without affecting catalyst performance.”

The Rice team believes the work can lead to more scalable CO2 electrolyzers, which is vital if the technology is to be deployed at industrial scales as part of carbon capture and utilization strategies. Since the approach itself is relatively simple, it could lead to a more cost-effective and efficient solution. It also worked well with multiple catalyst types, including zinc oxide, copper oxide and bismuth oxide, which are allo used to target different CO2RR products.

“Our method addresses a long-standing obstacle with a low-cost, easily implementable solution,” Ahmad Elgazzar, co-first author and graduate student in chemical and biomolecular engineering at Rice, added in the release. “It’s a step toward making carbon utilization technologies more commercially viable and more sustainable.”

A team led by Wang and in collaboration with researchers from the University of Houston also shared findings on salt precipitation buildup and CO2RR in a recent edition of the journal Nature Energy. Read more here.