Clearing the air

biofuels

Using equipment that captures and measures exhaust, the researchers tested biofuels in the same type of engine used by a Boeing 737.

Mixing alternative fuels with conventional jet fuel can cut aircraft emissions by nearly 40 percent, says Prem Lobo, MS ChE’03, MS EMgt’05. And it doesn’t affect engine performance.

In a study published in the journal Environmental Science and Technology, Lobo and his fellow Missouri S&T researchers tested two types of alternative jet fuels: biofuels made from vegetable oils, and fuels made with the Fischer-Tropsch process, which creates liquid hydrocarbons from coal, natural gas or biomass. Using equipment that captures and measures exhaust, the researchers tested the fuels in the same type of engine used by a Boeing 737, measuring at different power levels to simulate an airplane’s taxi, takeoff, climb and descent.
They found that the more alternative fuel they blended with the jet fuel, the lower the particulate matter emissions. But they also discovered that the only fuel that was a viable alternative was a 50-50 blend of Fischer-Tropsch fuel and jet fuel. It maintained adequate engine power for commercial or military use and it reduced particulate matter mass emissions by 39 percent.
Lobo, assistant director of the S&T Center of Excellence for Aerospace Particulate Emissions Reduction Research, was the lead author of the Environmental Science and Technology paper. Co-authors were Philip Whitefield, interim vice provost for academic affairs, professor of chemistry and director of the center, and Donald Hagen, professor of physics and a researcher at the center.

Around the Puck

“Forged in Gold: Missouri S&T’s First 150 Years”

In the 1870s, Rolla seemed an unlikely location for a new college. There were only about 1,400 residents in a community with more saloons than houses of worship. There were no paved streets, sewers or water mains. To visitors, there seemed to be as many dogs, hogs, horses, ducks and geese as humans walking the dusty streets.

[Read More...]

By the numbers: Fall/Winter 2019

[Read More...]

Bringing clean water to South America

Assessing water quality, surveying mountaintop locations and building systems to catch rainwater — that’s how members of S&T’s chapter of Engineers Without Borders spent their summer break.

[Read More...]

Geothermal goals exceeded

After five years of operation, Missouri S&T’s geothermal energy system continues to outperform expectations. S&T facilities operations staff originally predicted the geothermal system would reduce campus water usage by over 10% — roughly 10 million gallons per year. The system, which went online in May 2014, cut actual water usage by 18 million to 20 […]

[Read More...]

What happens in Vegas…may appear in print

In his latest volume of Las Vegas lore, historian Larry Gragg says it was deliberate publicity strategies that changed the perception of Sin City from a regional tourist destination where one could legally gamble and access legalized prostitution just outside the city limits, to a family vacation spot filled with entertainment options and surrounded by […]

[Read More...]