Featured Research

from universities, journals, and other organizations

Engineers test microelectronic cooling system in zero gravity on board the Novespace Airbus

Date:
July 10, 2013
Source:
University of Illinois at Chicago
Summary:
Three years of preparation supported by NASA paid off this June for researchers who conducted experiments while floating weightless on a Novespace & European Space Agency (ESA) plane.

Postdoctoral researcher Suman Sinha Ray and Prof. Alexander Yarin in the Novespace Airbus.
Credit: Image courtesy of University of Illinois at Chicago

Three years of preparation supported by NASA paid off this June for researchers from the University of Illinois at Chicago who conducted experiments while floating weightless on a Novespace & European Space Agency (ESA) plane.

Under the direction of Alexander Yarin, UIC professor of mechanical and industrial engineering, Suman Sinha Ray, a post-doctoral fellow and recent UIC graduate, and his brother Sumit Sinha Ray, a graduate student, braved high- and zero-gravity to test a cooling system Yarin's team developed for hot-running microelectronics.

When liquid on a hot surface evaporates, it carries away heat. Yarin and his colleagues were interested in learning how well the evaporative cooling system they developed would work under conditions of twice-normal or zero gravity.

The UIC team, one of 12 international teams monitoring experiments onboard the Novespace Airbus plane, was collaborating with Professor C. Tropea from the Technische Universität Darmstadt, in Germany, who sent three students on board.

The Novespace Airbus' parabolic flights produced conditions of weightlessness and nearly double normal gravity. As a plane flies a parabola, gravitational force increases when it climbs or descends steeply. As the plane reaches its peak and floats over the top of the curve, passengers experience weightlessness.

The flights were physically demanding but "exciting and fun," said Suman Singha Ray. They were warned not to try to float around the cabin as astronauts do in the space station. When you move your head while weightless, he said, "your senses don't match," and many people become nauseated, even after a pre-flight anti-nausea injection.

Suman was right at home, his brother Sumit said, and "worked on the computer very naturally as we ran the experiment."

Sumit photographed the experiment while keeping a close eye on the pressurized rig running the system. Holding the camera steady as his feet floated off the floor was a challenge, he said, as was keeping an eye on his fellow travelers. He accidentally kicked a Japanese scientist who floated too close.

The UIC researchers were testing their cooling system for potential application in near or outer space. Satellites, rockets and drones have elaborate electro-optical and infrared sensors, recording equipment and data processing systems. All of these electronics are designed with smaller and smaller elements that generate heat and can burn out.

"This is a problem that is very acute," said Yarin. "We are very nearly at the limit of miniaturization because of the problem of heat removal."

Yarin and his group have developed novel nano-textured surfaces that dramatically increase cooling efficiency. Their cooling system covers high-heat surfaces with mats made from tangles of nanofibers. The extremely thin fibers of the mat trap coolant against the surface so that evaporation is rapid and complete.

Over three days, the group flew three flights. On each 3 ½-hour flight, the plane flew 31 parabolas -- five minutes through the curve, five minutes rest, then another five-minute parabola, with a rest after every third parabola. They will now analyze the data collected during the high-gravity and zero-gravity portions of the parabolic flights to understand how the cooling system works under the conditions of space applications.

Yarin's group and the international collaboration with the Technische Universität Darmstadt was supported by NASA through grant NNX10AR99G.


Story Source:

The above story is based on materials provided by University of Illinois at Chicago. Note: Materials may be edited for content and length.


Cite This Page:

University of Illinois at Chicago. "Engineers test microelectronic cooling system in zero gravity on board the Novespace Airbus." ScienceDaily. ScienceDaily, 10 July 2013. <www.sciencedaily.com/releases/2013/07/130710182456.htm>.
University of Illinois at Chicago. (2013, July 10). Engineers test microelectronic cooling system in zero gravity on board the Novespace Airbus. ScienceDaily. Retrieved April 18, 2014 from www.sciencedaily.com/releases/2013/07/130710182456.htm
University of Illinois at Chicago. "Engineers test microelectronic cooling system in zero gravity on board the Novespace Airbus." ScienceDaily. www.sciencedaily.com/releases/2013/07/130710182456.htm (accessed April 18, 2014).

Share This



More Space & Time News

Friday, April 18, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Earth's Near-Twin Found Orbiting Red Dwarf

Earth's Near-Twin Found Orbiting Red Dwarf

Newsy (Apr. 17, 2014) — The newly-discovered planet is roughly the size of Earth and could have liquid water on its surface. Video provided by Newsy
Powered by NewsLook.com
New Baby Moon 'Peggy' Spotted In Saturn's Rings

New Baby Moon 'Peggy' Spotted In Saturn's Rings

Newsy (Apr. 15, 2014) — A bump in the rings could be a half-mile-wide miniature moon. It was found by accident in Cassini probe images. Video provided by Newsy
Powered by NewsLook.com
Americas Glimpse Total Lunar Eclipse

Americas Glimpse Total Lunar Eclipse

AFP (Apr. 15, 2014) — A total lunar eclipse, the first since December 2011, took place early Tuesday morning with the Americas getting the best glimpse. Duration: 1:19 Video provided by AFP
Powered by NewsLook.com
NASA Showcases Lunar Eclipse

NASA Showcases Lunar Eclipse

AP (Apr. 15, 2014) — Star gazers in parts of North and South America got a rare treat early Tuesday morning - a total eclipse of the moon. (April 15) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins