News / Science & Technology

Industrial Waste Heat Converted to Electricity

Oil is pumped from a well near Van, Texas, in this file photo. Gulf Coast Green Energy hopes to capture some of the heat from the thousands of oil and gas wells in Texas and turn it into electricity.
Oil is pumped from a well near Van, Texas, in this file photo. Gulf Coast Green Energy hopes to capture some of the heat from the thousands of oil and gas wells in Texas and turn it into electricity.
Bill Zeeble
DALLAS, Texas — Sixty percent of all energy generated in the world today is lost as wasted heat, according to Loy Sneary. The CEO of Gulf Coast Green Energy wants to capture some of that heat from the thousands of oil and gas wells in Texas – as well as other places – and turn it into electricity.
   
“We’ve got more electricity than could be generated by all the coal-fired power plants, natural gas-fired power plants and nuclear power plants in the world," he says. "That’s what the potential is.”

Deep underground, Sneary explains, the earth is already hot. Drive a diamond drill down into hard rock or shale, and the bit gets even hotter. Liquid cools it. That’s where Sneary’s Green Machine comes in.

Housed in a square box smaller than a compact car, the device channels the abundant hot well water through a pipe which runs next to another filled with refrigerant. The refrigerant boils and vaporizes at low temperatures and the resulting steam is used to generate electricity.

Engineers check the Green Machine, which converts waste heat into electricity, at Southern Methodist University in Dallas. (Courtesy SMU)Engineers check the Green Machine, which converts waste heat into electricity, at Southern Methodist University in Dallas. (Courtesy SMU)
x
Engineers check the Green Machine, which converts waste heat into electricity, at Southern Methodist University in Dallas. (Courtesy SMU)
Engineers check the Green Machine, which converts waste heat into electricity, at Southern Methodist University in Dallas. (Courtesy SMU)
“So we can take these lower temperatures, hot water sources, and transfer the heat," Sneary says, "and then once that refrigerant is expanded and pressurized, from there on it’s just like a steam turbine.”

It’s not just oil and gas wells that provide waste heat for the Green Energy Machines to convert into electricity, the heat recycling technology can also work with solar energy arrays, coal-fired power plants, internal combustion engines and virtually any other industrial process that produces waste heat.

Last year, Sneary connected his device to the boilers at Southern Methodist University in Dallas and converted that system’s waste heat into electricity, helping to cut the university’s utility bills.
 
Sneary says the Green Energy machine can generate enough electricity to power up to 70 homes at a fraction of the cost of power generated by a coal-fired plant.

SMU’s Geothermal Lab Coordinator, Maria Richards, says her lab’s custom temperature maps help Sneary find hot spots associated with petroleum drilling operations where he can deploy his machines. The school and Gulf Coast Green Energy have partnered for several years.

"There was really so much heat in the Gulf Coast," Richards says. "That made us realize that, by working with the oil and  gas wells, it was an ability to tap into those resources.”

Sneary is negotiating with drillers in Texas, has a project in West Virginia, and is looking at other states too. He says his company’s heat-capture technology is efficient and green because it’s emission-free. And given the growing number of oil-and-gas-well hot spots pinpointed on SMU’s geothermal map, Sneary expects his Gulf-Coast Green Energy machines will be in great demand for years to come.

You May Like

Video Migrants Caught in No-Man's Land In French Port

The deaths of hundreds of migrants in the Mediterranean this week has only recast the spotlight on the perils of reaching 'Fortress Europe' More

Video Westgate Mall Attack Survivors Confront Painful Memories

On anniversary of terror attack, survivors discuss how they have coped with trauma they experienced that day More

New Hints That Dark Matter Exists

New evidence from International Space Station hints at existence of dark matter and dark energy More

Featured Videos

Your JavaScript is turned off or you have an old version of Adobe's Flash Player. Get the latest Flash player.
Migrants Caught in No-Man's Land Called Calaisi
X
Lisa Bryant
September 19, 2014 5:04 PM
The deaths of hundreds of migrants in the Mediterranean this week has only recast the spotlight on the perils of reaching Europe. And for those forunate enough to reach a place like Calais, France, only find that their problems aren't over. Lisa Bryant has the story.
Video

Video Migrants Caught in No-Man's Land Called Calais

The deaths of hundreds of migrants in the Mediterranean this week has only recast the spotlight on the perils of reaching Europe. And for those forunate enough to reach a place like Calais, France, only find that their problems aren't over. Lisa Bryant has the story.
Video

Video Westgate Siege Anniversary Brings Back Painful Memories

One year after it happened, the survivors of the terror attack on Nairobi's Westgate Shopping Mall still cannot shake the images of that tragic incident. For VOA, Mohammed Yusuf tells the story of victims still waiting for the answer to the question 'how could this happen?'
Video

Video Militant Assault in Syria Displaces Thousands of Kurds

A major assault by Islamic State militants on Kurds in Syria has sent a wave of new refugees to the Turkish border, where they were stopped by Turkish border security. Turkey is already hosting about 700,000 Syrian refugees who fled the civil war between the government and the opposition. But the government in Ankara has a history of strained relations with Turkey's Kurdish minority. Zlatica Hoke reports Turkey is asking for international help.
Video

Video CERN Accelerator Back in Business

The long upgrade of the Large Hadron Collider is over. The scientific instrument responsible for the discovery of the Higgs boson -- the so-called "God particle" -- is being brought up to speed in time for this month's 60th anniversary of the European Organization for Nuclear Research, known by its French acronym CERN. Physicists hope the accelerator will help them uncover more secrets about the origins of the universe. VOA’s George Putic reports.
Video

Video Whaling Summit Votes to Uphold Ban on Japan Whale Hunt

The International Whaling Commission, meeting in Slovenia, has voted to uphold a court ruling banning Japan from hunting whales in the Antarctic Ocean. Conservationists hailed the ruling as a victory, but Tokyo says it will submit revised plans for a whale hunt in 2015. Henry Ridgwell reports from London.
Video

Video Russian Economy Reeling After New Western Sanctions

A new wave of Western sanctions is hitting Russia’s economy hard. State-owned energy firms continue to bleed profits and Russia’s national currency plunged to a new low this week after the U.S. and the European Union announced new sanctions to punish Russia's aggressive stance in eastern Ukraine. But as Mil Arcega reports, the sanctions could also prove costly for European and American companies.
Video

Video Belgian Researchers Discover Way to Block Cancer Metastasis

Cancer remains one of the deadliest diseases, despite many new methods to combat it. Modern medicine has treatments to prevent the growth of primary tumor cells. But most cancer deaths are caused by metastasis, the stage when primary tumor cells change and move to other parts of the body. A team of Belgian scientists says it has found a way to prevent that process. Zlatica Hoke has more.
Video

Video Mogadishu's Flood of Foreign Workers Leaves Somalis Out of Work

Unemployment and conflict has forced many young Somalians out of the country in search of a better life. But a newfound stability in the once-lawless nation has created hope — and jobs — which, some say, are too often being filled by foreigners. Abdulaziz Billow reports from Mogadishu.
Video

Video A Dinosaur Fit for Land and Water

Residents and tourists in Washington D.C. can now examine a life-size replica of an unusual dinosaur that lived almost a hundred million years ago in northern Africa. Scientists say studying the behemoth named Spinosaurus helps them better understand how some prehistoric animals adapted to life on land and in water. The Spinosaurus replica is on display at the National Geographic museum. VOA’s George Putic has more.
Video

Video Iraqi Kurdistan Church Helps Christian Children Cope find shelter in churches in the Kurdish capital, Irbil

In the past six weeks, tens of thousands of Iraqi Christians have been forced to flee their homes by Islamic State militants and find shelter in churches in the Kurdish capital, Irbil. Despite U.S. airstrikes in the region, the prospect of people returning home is still very low and concerns are starting to grow over the impact this is having on the displaced youth. Sebastian Meyer reports from Irbil on how one church is coping.
Video

Video NASA Picks Boeing, SpaceX to Carry Astronauts Into Space

The U.S. space agency, NASA, has chosen Boeing and SpaceX companies to build the next generation of spacecraft that will carry U.S. astronauts to the International Space Station by the year 2017. The deal with private industry enables NASA to end its dependence on Russia to send space crews into low Earth orbit and back. Zlatica Hoke has more.
Video

Video Future of Ukrainian Former President's Estate Uncertain

More than six months after Ukraine's former President Viktor Yanukovych fled revolution to Russia, authorities have yet to gain control of his palatial estate. Protesters occupy the grounds and opened it to tourists but they are also refusing to turn it over to the state. VOA's Daniel Schearf reports from Mezhigirya, just north of Kyiv.


Carnage and mayhem are part of daily life in northern Nigeria, the result of a terror campaign by the Islamist group Boko Haram. Fears are growing that Nigeria’s government may not know how to counter it, and may be making things worse. More

AppleAndroid