Tech

March 1, 2013

NASA begins flight research campaign using alternate jet fuel

NASA researchers have begun a series of flights using the agency’s DC-8 flying laboratory to study the effects of alternate biofuel on engine performance, emissions and aircraft-generated contrails at altitude.

The Alternative Fuel Effects on Contrails and Cruise Emissions (ACCESS) research involves flying the DC-8 as high as 40,000 feet while an instrumented NASA Falcon HU-25 aircraft trails behind at distances ranging from 300 feet to more than 10 miles.

“We believe this study will improve understanding of contrails formation and quantify potential benefits of renewable alternate fuels in terms of aviation’s impact on the environment,” said Ruben Del Rosario, manager of NASA’s Fixed Wing Project.

ACCESS flight operations are being staged from NASA’s Dryden Aircraft Operations Facility in Palmdale, Calif., and will take place mostly within restricted airspace over Edwards Air Force Base, Calif.

During the flights, the DC-8′s four CFM56 engines will be powered by conventional JP-8 jet fuel, or a 50-50 blend of JP-8 and an alternative fuel of hydroprocessed esters and fatty acids that comes from camelina plants.

More than a dozen instruments mounted on the Falcon jet will characterize the soot and gases streaming from the DC-8, monitor the way exhaust plumes change in composition as they mix with air, and investigate the role emissions play in contrail formation.

Also, if weather conditions permit, the Falcon jet will trail commercial aircraft flying in the Southern California region, in coordination with air traffic controllers, to survey the exhaust emissions from a safe distance of 10 miles.

The flight campaign began Feb. 28 and is expected to take as long as three weeks to complete.

ACCESS follows a pair of Alternative Aviation Fuel Experiment studies conducted in 2009 and 2011 in which ground-based instruments measured the DC-8′s exhaust emissions as the aircraft burned alternative fuels while parked on the ramp at the Palmdale facility.

A second phase of ACCESS flights is planned for 2014. It will capitalize on lessons learned from the 2013 flights and include a more extensive set of measurements.

The ACCESS study is a joint project involving researchers at Dryden, NASA’s Glenn Research Center in Cleveland and NASA’s Langley Research Center in Hampton, Va.

The Fixed Wing Project within the Fundamental Aeronautics Program of NASA’s Aeronautics Research Mission Directorate manages ACCESS.

 




All of this week's top headlines to your email every Friday.


 
 

 
nasa-flying-lab

NASA’s flying laboratories study our world

Throughout the remainder of 2014, NASA is flying a series of airborne research campaigns from the North Pole to the South Pole and many points in between ñ to take a closer look at U.S. air quality, hurricanes in the Atlantic ...
 
 

NASA selects proposals to increase STEM education at community, technical colleges

NASA’s Office of Education will award more than $17.3 million through the National Space Grant and Fellowship Program to increase student and faculty engagement in science, technology, engineering and mathematics at community colleges and technical schools across the United States. Each award has a two-year performance period and a maximum value of $500,000. The 35...
 
 
Courtesy photograph

Space technology experiments tested in microgravity flight

Courtesy photograph University of Central Florida students and their principal investigator observe their experiment as it reacts to the microgravity environment on NASA’s C-9 reduced-gravity experiments aircraft. NASA...
 

 
NASA photograph by Tom Tschida

Seeing double: Experimental glider, rocket undergo fit checks

NASA photograph by Tom Tschida NASA intern Erik Rossi De La Fuente (upper left) admires the one-third scale, twin-fuselage sailplane concept demonstrator that will carry and launch the Whittinghill Aerospace Mini Sprite rocket....
 
 
Image courtesy of NASA/JPL/Corby Waste

NASA selects U.S. small business technology transfer projects for further development

Image courtesy of NASA/JPL/Corby Waste An artist’s rendition of the 2007 Phoenix Mars probe during landing depicts dust particles stirred up from thrusters. CFD Research Corporation, in conjunction with the University of ...
 
 
University of Rhode Island photograph by Tom Glennon

NASA kicks off field campaign to probe ocean ecology, carbon cycle

University of Rhode Island photograph by Tom Glennon The Research Vessel Endeavor is the floating laboratory that scientists will use for the ocean-going portion of the SABOR field campaign this summer. NASA embarks this week o...
 




0 Comments


Be the first to comment!


Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>