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Edmonson County's Number One Source For Local News and Information

ECHS 2010 Graduate Wins NASA Space Research Fellowship At Vandy: It's Actual Rocket Science

4/15/2016

 
PictureDarren Tinker
courtesy of Vanderbilt School of Engineering News
Former ECHS student, WKU graduate and Vanderbilt graduate student Darren Tinker has been selected by NASA for its 2016 class of Space Technology Research Fellowship.

Tinker is a second year graduate student in mechanical engineering. His research – An Additively Manufactured Torch Igniter for Liquid Propellants – is funded up to $74,000 for one year, but the award may be renewed for up to three additional years.

The coupling of additive manufacturing and liquid fuel propulsion systems is the next great advancement for space technology and will help ensure that spaceflight remains safe, affordable and sustainable.

Under the NASA fellowship, Tinker will design a 3D-printed torch igniter that is hypothesized to act as a suitable replacement for igniters machined out of wrought metal stock.

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"NASA recently has built and tested 3D printed injectors and thrusters, but they have either been ignited with a hypergolic propellant or a traditionally-machined torch igniter," Tinker said.

“An additively manufactured igniter could be printed directly into the injector system, which would reduce the part quantity and complexity. Validation of a printed device provides a low-cost, quickly-manufactured device using state-of-the-art manufacturing capabilities without diminishing overall engine performance,” Tinker said.

“Explicitly, the ability to additively manufacture the igniter reduces part counts, manufacturing time, and weld joints. The part and welding reduction would inherently raise device reliability. This is critical for main engine ignition and offers the ability for multiple ignition events,” he said.

Aerospace applications alone range from small in-space thrusters to torch igniters used in core-stage engines that have thrust capabilities similar to the space shuttle main engine. The proposed work will address both current and future needs for reliable ignition systems in terrestrial and space systems.

“A successful proof-of-concept would provide a foundation of knowledge to build upon and design simplifications, reducing both the cost and complexity of propulsion systems for years to follow,” Tinker said.
​
Tinker will work with his faculty adviser Robert Pitz, professor of mechanical engineering and chair of the mechanical engineering department, and with Robin Osborne, a senior mechanical engineer in the Combustion Devices Design and Development Branch, in the Engineering Directorate of ERC, Inc./Jacobs-ESSSA Group, at NASA’s Marshall Space Flight Center in Huntsville, Alabama.

Darren is the son of Gary and Pam Tinker of Plano.  Pam is a retired teacher from Edmonson County.  Darren attended school in Edmonson County from K-12.  He is graduated from WKU and is now a Graduate assistant at Vanderbilt University where he is attending on a full academic scholarship.
Jennifer Toms
4/15/2016 10:40:57 pm

Darren was one of my former students. I have several funny stories I could tell about him. He's always been a great person.


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