General Information

Mail: University of Houston
Cullen College of Engineering
E421 Engineering Bldg 2, 4722 Calhoun Rd, Houston, TX 77204-4007
Map & Driving Directions (includes parking information)
Email: info [at] egr [dot] uh [dot] edu

CULLEN COLLEGE OF ENGINEERING

University of Houston Cullen College of Engineering

News

Grant Seeks to Further Research on Improved Fuel Efficiency and Emissions

Printer-friendly versionSend by emailPDF version

By: 

Toby Weber
Grigoriadis
Grigoriadis

With engine emissions requirements as strict as ever and federally mandated fuel economy standards set to rise, the National Science Foundation has awarded professors at the University of Houston Cullen College of Engineering $200,000 to further their research on computational models and algorithms to optimize engine performance in both areas.

The three-year grant’s principal investigator is Karolos Grigoriads, professor of mechanical engineering with the Cullen College. Grigoriadis and his collaborators have spent much of the past 20 years developing and refining algorithms for improving engine fuel efficiency and lowering emissions, partnering with companies such as Cummins, Ford and General Motors in the process. In addition to the NSF, their work has received funding from the U.S. Department of Energy, the Army Research Office and many companies in the engine and automotive sector.

The approach these researchers take addresses both the engine itself, as well as the catalyst used to reduce harmful emissions through chemical reactions. “It’s important to have a model of the whole system, the engine and the catalyst,” Grigoriadis said. “We need to understand the input/output behaviors of each individual subsystem and we need mathematical models that describe this behavior. The algorithms are designed based on these models and they adjust and optimize in real time the coupled behavior of the engine and the catalyst.”

Through these algorithms, then, vehicles’ onboard computing systems are able to use engine data (such as load and speed), predict catalyst performance (such as the amount of oxygen in the catalyst at a given moment) and then tweak their combined operation to meet stricter pollution and mileage standards.

Grigoriadis is collaborating on this project with Matthew Franchek, professor of mechanical engineering, as well as Vemuri Balakotaiah, professor and Hugh Roy and Lillie Cranz Cullen Distinguished University Chair in the Cullen College's Department of Chemical and Biomolecular Engineering.

Faculty: 

Department: 

Related News Stories

How the Guardian of Our DNA Gets its Donut-Like Structure

Ph.D student Mehdi Torbati, left, and Dr. Ashutosh Agrawal and are peering into cell nuclei to improve health

Deep within your body there exists donut-shaped objects – many of them, in fact. No, these donuts aren’t from the box of Shipley’s that mysteriously disappeared, despite the fact your diet had just started. These particular donuts are the membranes of the nuclear envelope, which surround and protect the cell’s nucleus, where the all-important genetic material, or DNA, is stored.

“Bend” and “Flex” No Longer Just Terms for Exercise, They’ll Soon Describe Your Laptop!

Flexible glass tape, the basis for building flexible computers

Tired of lugging that heavy laptop in your padded backpack? Here’s an idea: When you’re finished using your laptop, just roll it up, fold it, stick it in your back pocket and bolt. That’s the incredible future being created in a UH Cullen College of Engineering laboratory – a flexible, thin-film transistor (TFT) that may one day make your current laptop a dinosaur.