Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Sapphire: a Blue Gem for Greener Fuel

24.03.2010
Sapphire, a brilliant blue gemstone most familiar in jewelry, may soon play an important part in making coal a cleaner fuel source.

Researchers at Missouri University of Science and Technology are investigating sapphire’s suitability for sensors that could survive the harsh, hot environment of coal-gasification plants, which produces synthesis gas (syngas), a synthetic form of natural gas that can be used as a clean fuel for power generation and transportation.

Sapphire is also a tough mineral and, when grown as single crystal sapphire, is able to withstand extreme temperatures. That’s why the Missouri S&T researchers think it could handle the heat of coal gasification.

“It’s a very harsh environment,” Dr. Hai Xiao, associate professor of electrical and computer engineering at Missouri S&T, says of the systems that turn coal into syngas. Those harsh environments also require precise temperature and pressure controls to make syngas as cleanly as possible.

“The high temperature ensures the efficient transformation of coal to syngas, creating less waste and sustaining a better environment.” Xiao says.

One of the roadblocks to the coal gasification technology is the lack of process control instrumentation that can handle the harsh gasification environment. “There’s a huge technology gap for sensing and monitoring in harsh environments in general,” Xiao says. For instance, future spacecraft with power systems that run hot also need tough control systems, Xiao says.

Xiao and his colleagues believe sapphire can take the heat. But they still have to figure out how to turn the crystal into a very small sensor. The researchers want to create sensors that are only about 100 microns in diameter – about the thickness of a human hair. The sensors will take the form of fibers.

The researchers’ first task is to design and build the sensors with the ability to measure temperature as well as gas pressure. They will then conduct laboratory tests on the sensors, then explore the possibility of testing the sensors in actual production facilities. Missouri S&T will work with AmerenUE, a utility company based in St. Louis, to field-test the sensors.

The three-year research project began last October and is funded by the U.S. Department of Energy National Energy Technology Laboratory. Working with Xiao on the project are Dr. H.L. Tsai, professor of mechanical and aerospace engineering at Missouri S&T, and Dr. Junhang Dong, associate professor of chemical and materials engineering at the University of Cincinnati. Assisting the researchers are Ozzie L. Lomax, AmerenUE’s manager of combustion turbine generation, and George Mues, AmerenUE’s principal engineer of research and development.

Andrew Careaga | Newswise Science News
Further information:
http://www.mst.edu

More articles from Power and Electrical Engineering:

nachricht Supersonic waves may help electronics beat the heat
18.05.2018 | DOE/Oak Ridge National Laboratory

nachricht Researchers control the properties of graphene transistors using pressure
17.05.2018 | Columbia University

All articles from Power and Electrical Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: LZH showcases laser material processing of tomorrow at the LASYS 2018

At the LASYS 2018, from June 5th to 7th, the Laser Zentrum Hannover e.V. (LZH) will be showcasing processes for the laser material processing of tomorrow in hall 4 at stand 4E75. With blown bomb shells the LZH will present first results of a research project on civil security.

At this year's LASYS, the LZH will exhibit light-based processes such as cutting, welding, ablation and structuring as well as additive manufacturing for...

Im Focus: Self-illuminating pixels for a new display generation

There are videos on the internet that can make one marvel at technology. For example, a smartphone is casually bent around the arm or a thin-film display is rolled in all directions and with almost every diameter. From the user's point of view, this looks fantastic. From a professional point of view, however, the question arises: Is that already possible?

At Display Week 2018, scientists from the Fraunhofer Institute for Applied Polymer Research IAP will be demonstrating today’s technological possibilities and...

Im Focus: Explanation for puzzling quantum oscillations has been found

So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics

Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...

Im Focus: Dozens of binaries from Milky Way's globular clusters could be detectable by LISA

Next-generation gravitational wave detector in space will complement LIGO on Earth

The historic first detection of gravitational waves from colliding black holes far outside our galaxy opened a new window to understanding the universe. A...

Im Focus: Entangled atoms shine in unison

A team led by Austrian experimental physicist Rainer Blatt has succeeded in characterizing the quantum entanglement of two spatially separated atoms by observing their light emission. This fundamental demonstration could lead to the development of highly sensitive optical gradiometers for the precise measurement of the gravitational field or the earth's magnetic field.

The age of quantum technology has long been heralded. Decades of research into the quantum world have led to the development of methods that make it possible...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Save the date: Forum European Neuroscience – 07-11 July 2018 in Berlin, Germany

02.05.2018 | Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

Unique scope of UV LED technologies and applications presented in Berlin: ICULTA-2018

12.04.2018 | Event News

 
Latest News

Research reveals how order first appears in liquid crystals

23.05.2018 | Life Sciences

Space-like gravity weakens biochemical signals in muscle formation

23.05.2018 | Life Sciences

NIST puts the optical microscope under the microscope to achieve atomic accuracy

23.05.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>