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.
TEXT SIZE - +
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

Analysts Warn of Regional Proxy Conflict in Afghanistan

Analysts warn if Kabul’s neighbors do not start to cooperate, competing desires for influence could deteriorate into a bloody proxy war in the country More

Saudi Intelligence Chief Replaced

Bandar bin Sultan came under criticism for supporting al Qaida, prompting King Abdallah to wrest Syria operations away from him in February, handing them to Interior Minister Prince Mohammed bin Nayef More

Poetry Magazine editor Don Share talks what makes a good poem with VOA's David Byrd

What makes a good poem? And is poetry as viable an art form as it once was? To find out, VOA's David Byrd spoke to Don Share, the editor of Poetry Magazine. More

Featured Videos

Your JavaScript is turned off or you have an old version of Adobe's Flash Player. Get the latest Flash player.
Google Buys Drone Companyi
|| 0:00:00
...
 
🔇
X
George Putic
April 15, 2014
In its latest purchase of high-tech companies, Google has acquired a manufacturer of solar-powered drones that can stay in the air almost indefinitely, relaying broadband Internet connection to remote areas. It is seen as yet another step in the U.S. based Web giant’s bid to bring Internet to the whole world. VOA’s George Putic reports.
Video

Video Google Buys Drone Company

In its latest purchase of high-tech companies, Google has acquired a manufacturer of solar-powered drones that can stay in the air almost indefinitely, relaying broadband Internet connection to remote areas. It is seen as yet another step in the U.S. based Web giant’s bid to bring Internet to the whole world. VOA’s George Putic reports.
Video

Video Ray Bonneville Sings the Blues and More on New CD

Singer/songwriter Ray Bonneville has released a new CD called “Easy Gone” with music that reflects his musical and personal journey from French-speaking Canada to his current home in Austin,Texas. The eclectic artist’s fan base extends from Texas to various parts of North America and Europe. VOA’s Greg Flakus reports from Austin.
Video

Video Millions Labor in Pakistan's Informal Economy

The World Bank says that in Pakistan, roughly 70 percent work in the so-called informal sector, a part of the economy that is unregulated and untaxed. VOA's Sharon Behn reports from Islamabad on how the informal sector impact's the Pakistani economy.
Video

Video Passover Celebrates Liberation from Bondage

Jewish people around the world are celebrating Passover, a commemoration of their liberation from slavery in Egypt more than 3,300 years ago. According to scripture, God helped the Jews, led by Moses, escape bondage in Egypt and cross the Red Sea into the desert. Zlatica Hoke reports that the story of the Jewish Exodus resonates with other people trying to escape slave-like conditions.
Video

Video Police Pursue Hate Crime Charges Against Kansas Shooting Suspect

Prosecutors are sifting through the evidence in the wake of Sunday’s shootings in a suburb of Kansas City, Missouri that left three people dead. A suspect in the shootings taken into custody is a white supremacist. As VOA’s Kane Farabaugh reports, he was well-known to law enforcement agencies and human rights groups alike.
Video

Video In Eastern Ukraine, Pro-unity Activists Emerge from Shadows

Amid the pro-Russian uprisings in eastern Ukraine, there is a large body of activists who support Ukrainian unity and reject Russian intervention. Their activities have remained largely underground, but they are preparing to take on their pro-Moscow opponents, as Henry Ridgwell reports from the eastern city of Donetsk.
Video

Video Basket Maker’s Skills Have World Reach

A prestigious craft show in the U.S. capital offers one-of-a-kind creations by more than 120 artists working in a variety of media. As VOA’s Julie Taboh reports from Washington, one artist lucky enough to be selected says sharing her skills with women overseas is just as significant.
Video

Video UN Report Urges Speedier Action to Avoid Climate Disaster

A new United Nations report says the world must switch from fossil fuels to cleaner energy sources to control the effects of climate change. The Intergovernmental Panel on Climate Change released the report (Sunday) following a meeting of scientists and government representatives in Berlin. The comprehensive review follows two recent IPCC reports that detail the certainty of climate change, its impacts and in this most recent report what to do about it. VOA’s Rosanne Skirble has the details.
AppleAndroid