Houston is the ninth worst U.S. metro for ozone pollution, but the future isn't foggy. Electric vehicles can improve air quality by 50 percent. Getty Images

Let's clear the air about Houston's air pollution: A recent report from the American Lung Association ranks Houston the ninth worst U.S. metro area for ozone pollution and the 17th worst in the broad category of long-term particle pollution.

Yet the future might not be so cloudy for Houston's atmosphere.

A newly published study in the journal Atmospheric Environment indicates that replacing at least 35 percent of Houston's gas- and diesel-powered cars and trucks with electric vehicles by 2040 could improve air quality by 50 percent. And if electric vehicles replaced 75 percent of traditional cars and trucks by 2040, air quality could improve by 75 percent, according to the study.

This conversion to electric vehicles would enable residents of the Houston area to "breathe easier, live longer, and enjoy a better economy," the researchers say.

"The population in 2040 Houston will see a huge increase, but we can apply new technology to reduce emissions, improve air quality, and think about health," says one of the researchers, Shuai Pan, a postdoctoral associate in civil and environmental engineering at Cornell University.

Pan earned a doctoral degree in atmospheric science from the University of Houston in 2017.

Kevin Douglass, president of the Houston Electric Auto Association, tells InnovationMap that the study does a good job of emphasizing "the alarming situation that Houston is in with reference to its air quality and how electrification of the transportation system is a … way to improve the bad-air-quality situation."

The nonprofit Houston Electric Auto Association comprises EV owners, hobbyists, educators, and enthusiasts who promote the benefits of these vehicles.

Douglass says he's confident about the progression of the EV evolution in Houston.

"It only took a decade to go from horse-drawn carriage to automobile in the U.S.," he says. "One and a half decades from now, in 2035, at least half of the cars on the road will be electric. Thirty years from now, the vast majority of vehicles will be electric and autonomous."

Houston — which the nonprofit Smart Energy Consumer Collaborative praises as one of the 10 friendliest U.S. cities for EVs — already is on the road toward enhancing air quality by putting more electric vehicles (EVs) on the road. In fact, a 2018 report from the Environment Texas Research and Policy Center predicts the number of EVs in Houston will rise to 65,000 by 2030.

An estimated 9,500 EVs were being driven by Houston motorists in 2018, according to a presentation given in May by Michael Conklin, external engagement manager at Houston-based utility CenterPoint Energy. And by 2028, that number could reach 110,000, the presentation says.

"Electric cars aren't the future — they're already here, and they work," Douglass said in 2018. "As more people learn about them, they will enjoy owning and driving them."

Among Houston's highest-profile EV champions is Mayor Sylvester Turner, who's leading the charge to shift the city-owned fleet away from traditional vehicles and toward hybrids and EVs.

"Transportation is responsible for 48 percent of Houston's greenhouse gas emissions — the highest per capita of all U.S. cities — and something we must address to move our city forward," Turner, co-chair of the Climate Mayors organization, said in 2018.
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How Houston innovators played a role in the historic Artemis II splashdown

safe landing

Research from Rice University played a critical role in the safe return of U.S. astronauts aboard NASA’s Artemis II mission this month.

Rice mechanical engineer Tayfun E. Tezduyar and longtime collaborator Kenji Takizawa developed a key computational parachute fluid-structure interaction (FSI) analysis system that proved vital in NASA’s Orion capsule’s descent into the Pacific Ocean. The FSI system, originally developed in 2013 alongside NASA Johnson Space Center, was critical in Orion’s three-parachute design, which slowed the capsule as it returned to Earth, according to Rice.

The model helped ensure that the parachute design was large enough to slow the capsule for a safe landing while also being stable enough to prevent the capsule from oscillating as it descended.

“You cannot separate the aerodynamics from the structural dynamics,” Tezduyar said in a news release. “They influence each other continuously and even more so for large spacecraft parachutes, so the analysis must capture that interaction in a robustly coupled way.”

The end result was a final parachute system, refined through NASA drop tests and Rice’s computational FSI analysis, that eliminated fluctuations and produced a stable descent profile.

Apart from the dynamic challenges in design, modeling Orion’s parachutes also required solving complex equations that considered airflow and fabric deformation and accounted for features like ringsail canopy construction and aerodynamic interactions among multiple parachutes in a cluster.

“Essentially, my entire group was dedicated to that work, because I considered it a national priority,” Tezduyar added in the release. “Kenji and I were personally involved in every computer simulation. Some of the best graduate students and research associates I met in my career worked on the project, creating unique, first-of-its-kind parachute computer simulations, one after the other.”

Current Intuitive Machines engineer Mario Romero also worked on Orion during his time at NASA. From 2018 to 2021, Romero was a member of the Orion Crew Capsule Recovery Team, which focused on creating likely scenarios that crewmembers could encounter in Orion.

The team trained in NASA’s 6.2-million-gallon pool, using wave machines to replicate a range of sea conditions. They also simulated worst-case scenarios by cutting the lights, blasting high-powered fans and tipping a mock capsule to mimic distress situations. In some drills, mock crew members were treated as “injured,” requiring the team to practice safe, controlled egress procedures.

“It’s hard to find the appropriate descriptors that can fully encapsulate the feeling of getting to witness all the work we, and everyone else, did being put into action,” Romero tells InnovationMap. “I loved seeing the reactions of everyone, but especially of the Houston communities—that brought me a real sense of gratitude and joy.”

Intuitive Machines was also selected to support the Artemis II mission using its Space Data Network and ground station infrastructure. The company monitored radio signals sent from the Orion spacecraft and used Doppler measurements to help determine the spacecraft's precise position and speed.

Tim Crain, Chief Technology Officer at Intuitive Machines, wrote about the experience last week.

"I specialized in orbital mechanics and deep space navigation in graduate school,” Crain shared. “But seeing the theory behind tracking spacecraft come to life as they thread through planetary gravity fields on ultra-precise trajectories still seems like magic."

UH breakthrough moves superconductivity closer to real-world use

Energy Breakthrough

University of Houston researchers have set a new benchmark in the field of superconductivity.

Researchers from the UH physics department and the Texas Center for Superconductivity (TcSUH) have broken the transition temperature record for superconductivity at ambient pressure. The accomplishment could lead to more efficient ways to generate, transmit and store energy, which researchers believe could improve power grids, medical technologies and energy systems by enabling electricity to flow without resistance, according to a release from UH.

To break the record, UH researchers achieved a transition temperature 151 Kelvin, which is the highest ever recorded at ambient pressure since the discovery of superconductivity in 1911.

The transition temperature represents the point just before a material becomes superconducting, where electricity can flow through it without resistance. Scientists have been working for decades to push transition temperature closer to room temperature, which would make superconducting technologies more practical and affordable.

Currently, most superconductors must be cooled to extremely low temperatures, making them more expensive and difficult to operate.

UH physicists Ching-Wu Chu and Liangzi Deng published the research in the Proceedings of the National Academy of Sciences earlier this month. It was funded by Intellectual Ventures and the state of Texas via TcSUH and other foundations. Chu, founding director and chief scientist at TcSUH, previously made the breakthrough discovery that the material YBCO reaches superconductivity at minus 93 K in 1987. This helped begin a global competition to develop high-temperature superconductors.

“Transmitting electricity in the grid loses about 8% of the electricity,” Chu, who’s also a professor of physics at UH and the paper’s senior author, said in a news release. “If we conserve that energy, that’s billions of dollars of savings and it also saves us lots of effort and reduces environmental impacts.”

Chu and his team used a technique known as pressure quenching, which has been adapted from techniques used to create diamonds. With pressure quenching, researchers first apply intense pressure to the material to enhance its superconducting properties and raise its transition temperature.

Next, researchers are targeting ambient-pressure, room-temperature superconductivity of around 300 K. In a companion PNAS paper, Chu and Deng point to pressure quenching as a promising approach to help bridge the gap between current results and that goal.

“Room-temperature superconductivity has been seen as a ‘holy grail’ by scientists for over a century,” Rohit Prasankumar, director of superconductivity research at Intellectual Ventures, said in the release. “The UH team’s result shows that this goal is closer than ever before. However, the distance between the new record set in this study and room temperature is still about 140 C. Closing this gap will require concerted, intentional efforts by the broader scientific community, including materials scientists, chemists, and engineers, as well as physicists.”

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This article originally appeared on EnergyCapitalHTX.com.