Navigation Links
University of Houston diesel testing center teams with state transportation agency to cut emissions
Date:6/17/2009

The Texas Diesel Testing and Research Center at the University of Houston, in partnership with the Texas Department of Transportation, has been awarded a $500,000 grant from the Environmental Protection Agency to test a system designed to reduce emissions produced by construction vehicles.

"Improving air quality is one of TxDOT's five core goals, and this grant helps us to accomplish that mission," TxDOT Deputy Executive Director Steve Simmons said. "We look forward to working with the University of Houston, as well as the Environmental Protection Agency, to continue to find ways to reduce emissions from construction equipment."

UH's researchers will supervise the installation of Nett Technologies' BlueMAX selective catalytic reduction system, which is classified by the EPA as an emerging technology, on five TxDOT nonroad vehicles. They then will do testing and analysis on the BlueMAX's ability to reduce emissions, which will provide the EPA with real-world performance data.

"Houston is an ideal urban area to obtain maximum benefits from diesel retrofits, because it has a high population density, poor air quality and is not meeting ozone standards due in large part to the nitrogen oxides emitted by diesel-powered vehicles and equipment," explained professor Mike Harold, co-principal investigator of the Texas Diesel Testing and Research Center. "Over half of total mobile-source NOx emissions are attributed to diesel engines in the greater Houston area."

The team will do what Harold calls "a baseline emissions assessment" of each vehicle before the BlueMAX unit is installed. After the installation, the team will monitor the unit's performance using a portable emission measurement system, which is connected to the vehicle during operation in the field.

UH's diesel-testing facility, established in 2003 to carry out evaluation, technology development and research of heavy-duty diesel emissions devices and new fuels, is equipped with a heavy-duty chassis dynamometer, on which one of the TxDOT vehicles will undergo more thorough testing.

Located in Mississauga, Ontario, Canada, Nett Technologies specializes in emission-control products for engines, vehicles and machinery used in the mining, material handling and construction industries. The company's wide range of products includes catalytic converters for diesel, natural gas, liquefied petroleum gas and gasoline engines, diesel particulate filters and fume diluters.

The Nett BlueMAX selective catalytic reduction (SCR) system is designed to control nitrogen oxide emissions from medium- and heavy-duty diesel engines, using a control strategy that relies on a NOx concentration measurement by a sensor positioned upstream of the SCR catalyst.

"The NOx sensor-based control strategy makes the system very suitable for retrofit applications," said M.A. Mannan, business manager for Nett Technologies. "No time-consuming calibration, such as through engine mapping, is necessary, and the system can be installed on a wide range of diesel engines, including mechanical engines."

The system also controls diesel particulate matter, hydrocarbons and carbon monoxide, Mannan said.

"Selective-catalytic reduction, which was first developed for the abatement of NOx from power plants, is considered to have the best NOx-removal potential and durability for heavy-duty diesel vehicles," Harold said.

The specifications for the vehicles to be tested vary, Harold said, but all have Caterpillar engines with model years between 1998 and 2004 and horsepower between 120 and 305. Therefore, he said, the emissions reductions from each vehicle will vary.

"There is only one retrofit for nonroad vehicles on the EPA's emerging technology list that results in NOx reduction," Harold said. "Currently, the only other option for reducing NOx from this class of equipment is to purchase a new engine. Installing retrofits is a much more cost-effective option as opposed to buying brand new engines."


'/>"/>

Contact: Angela Hopp
ahopp@uh.edu
713-743-8153
University of Houston
Source:Eurekalert

Related biology news :

1. University of Leicester geologists demonstrate extent of ancient ice age
2. Rice University researchers ask if biofuels will lead to a drink or drive
3. University of Houston Site of Regional Center of Excellence
4. University of Saskatchewan and Canadian Synchrotron researchers shed light on esophageal disease
5. Boston University biomedical engineers teach bacteria to count
6. University of Florida study provides insight into evolution of first flowers
7. University of Liverpool awarded $3.3 million for genomics hub
8. University awarded £1.7M to develop nanotechnology for use in health care
9. Hebrew University researchers neutralize tumor growth in embryonic stem cell therapy
10. Georgetown Universitys Howard J. Federoff, M.D., Ph.D. receives Bernard Sanberg Memorial Award
11. Ben-Gurion University research and technology used in new solar energy farm
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/16/2017)... -- Veratad Technologies, LLC ( www.veratad.com ), an innovative and ... solutions, announced today they will participate as a sponsor ... May 17, 2017, in Washington D.C.,s ... Identity impacts the lives of billions of ... digital world, defining identity is critical to nearly every ...
(Date:5/6/2017)... RAM Group , Singaporean based ... in biometric authentication based on a novel  ... to perform biometric authentication. These new sensors are based on ... Ram Group and its partners. This sensor will have ... and security. Ram Group is a next generation ...
(Date:4/19/2017)... , April 19, 2017 ... its vendor landscape is marked by the presence of ... is however held by five major players - 3M ... these companies accounted for nearly 61% of the global ... leading companies in the global military biometrics market boast ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... ... October 11, 2017 , ... Disappearing forests and increased emissions are the ... million people each year. Especially those living in larger cities are affected by air ... one of the most pollution-affected countries globally - decided to take action. , “I ...
(Date:10/10/2017)... ... 10, 2017 , ... For the second time in three ... Mentoring Award. Representatives of the FirstHand program travelled to Washington, D.C. Tuesday, October ... US2020’s mission is to change the trajectory of STEM education in America by ...
(Date:10/10/2017)... , ... October 10, 2017 , ... ... of 13 prestigious awards honoring scientists who have made outstanding ... a scheduled symposium during Pittcon 2018, the world’s leading conference and exposition for ...
(Date:10/9/2017)... , ... October 09, 2017 ... ... on October 5, 2017, in the medical journal, Epilepsia, Brain Sentinel’s SPEAC® ... gold standard, video EEG, in detecting generalized tonic-clonic seizures (GTCS) using surface ...
Breaking Biology Technology: