January 12, 1999
QuestChat with Mary Reveley
Aerospace Technology Gas and
Fluid Systems Design Engineer
NASA Lewis Research Center, Cleveland, OH
- 0 - 08:16:25 ]
Hello to our early arriving chat participants! Today's chat with Mary
Reveley from NASA Lewis Research Center will begin at 9:00 a.m., Pacific
Standard Time. Be sure you have read Mary's profile at http://quest.arc.nasa.gov/women/bios/mr.html before
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- 1 - 08:16:59 ]
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- 2 - 08:18:28 ]
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- 3 - 08:18:56 ]
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- 12 - 09:00:07 ]
Hello and welcome to today's Aerospace Team Online/Women of NASA chat
with Mary Reveley from NASA Lewis Research Center. Mary designs anything
that carries a fluid from one point to another. The fluid can be air,
water, lubricating oil, fuel, nitrogen, liquid hydrogen, etc. Her work
includes working with vendors, researchers, mechanics, machinists, fabricators,
electricians coordinating work to be done by and with all of these people.
- 13 - 09:00:34 ]
And now, here is Mary Reveley to answer your questions.
- 11 - 08:59:31 ]
What's the most challenging aspect of your career? It is challenging
to continually learn new things and teach myself about new areas. In my
old job as a fluid systems designer, every new project involved learning
and expanding what I knew. I have recently transferred into a completely
new area in the propulsion systems analysis office. I have had to relearn
how jet engines work and also how to analyze the cost of new jet engine
technologies. It is also challenging to balance my work life with my personal
life. I have two small children to take care of also.
- 14 - 09:01:35 ]
I have to leave before the chat begins, but I'd like to leave one more
question: How did Mary start working at NASA and/or get her job there?
I sent my resume with a cover letter to the division chiefs of areas that
I found interesting. I got the information from a friend that already
worked at NASA. I was contacted by a few of the managers and then was
- 16 - 09:06:58 ]
RE: [Mason-MMrs.Choate/ViennaGrade] MMrs.Choate/ViennaGrade
What material do you use most to build tubing or ducing?
I don't actually make the tubing. I choose a material, size, wall thickness
and then either order it from a commercial vendor or have it made here
at our fabrication shop. What the tubing is made of depends on what you
will put in it, at what pressure and what temperature.
- 19 - 09:11:37 ]
RE: [Trevor-MMrs.Choate/ViennaGrade] MMrs.Choate/ViennaGrade
What is your favorite fluid to work with?
I've mostly just worked with air and water. Sometimes the air has to be
heated to over 1000 degrees and sometimes it has to be chilled to -60
degrees. I've had to design piping to cool thing that are hot using water.
Some of the engineers have design systems using cold (or cryogenic) hydrogen
- 22 - 09:16:19 ]
RE: [Stevi-MMrs.Choate/ViennaGrade] MMrs.Choate/ViennaGrade
Over a year ago our teacher read that some chemicals could be transported
on a space craft and mixed to make more fuel. Do you recall what the chemicals
Wow, good question. I have never worked with anything that has gone into
space. I have only worked on "ground-based" testing that is aeronautical
in nature (for airplanes, jet engines, etc.) I'm sorry but I don't have
any answer to your question. NASA Lewis Research Center does a lot of
- 24 - 09:18:25 ]
RE: [Dean-Mr.Richard/homeschool] What kind
of aircraft/engines do you work with?
I currently work with any engine that is "air-breathing" this means that
it needs air flowing through it to work. These could be piston engines,
jet engines, turbofan engines, or ramjet engines.
- 25 - 09:20:50 ]
RE: [Micah-Mr.Richard/homeschool] What kind
of education do you have.
I have a Bachelor of Science degree in aerospace engineering. I also will
have and MBA (masters in business administration) in a few months. I have
also taken many other classes here at NASA that haven't been part of getting
a degree: classes in working with others, communicating, project management
and others. Just because you are done with high school or college doesn't
mean you're done. It's a good idea to keep learning throughout your life.
- 27 - 09:23:32 ]
Some of the interesting aspects of my job here at NASA include meeting
many very interesting people. I have worked with researchers, operations
engineers (those who run the tests of new engines or other technologies),
machinists, fabrication shop workers, outside companies and vendors to
name a few. I've also been able to exciting research taking place on the
- 28 - 09:24:18 ]
RE: [Micah-Mr.Richard/homeschool] Have you
ever worked with Hyper-X planes?
Nope. sounds interesting though.
- 31 - 09:26:55 ]
RE: [Kelsey-MMrs.Choate/ViennaGrade] MMrs.Choate/ViennaGrade
I think it is interesting that you work with air that gets that hot. Do
you work with liquids that hot?
I have never worked with hot liquids. But some sytems involve using steam
(hot water) Designing a system with hot liquids would be tricky since
hot liquids like turning into gases!
- 32 - 09:30:38 ]
RE: [Dean-Mr.Richard/homeschool] I've been
to Lewis. Can you suggest any parts of it to visit?
Lewis has an "icing tunnel" than simulates the effects of icing on anything
that could be exposed to icing effects: like aircraft wings for example.
There a couple of "drop towers" for simulating microgravity during free
fall of objects. There is a flight simulator and theh ACTS (advanced communications
satellite )control room.
- 35 - 09:35:11 ]
RE: [Ben-MMrs.Choate/ViennaGrade] MMrs.Choate/ViennaGrade
How do you get the hot air into the tubbing.
Often pumps are used to move air or liquids through tubing. To get the
air hot I have used heaters. Sometimes the air may be heated by what is
flow around or near ....say an engine that is hot or a piece of machinery
that is giving off heat. The air is forced through the tubing by a pressure
difference. Just as you would force air into a balloon when you blow it
up. The higher pressure from the air in your mouth forces the air inside
the balloon that is at a lower pressure.
- 39 - 09:43:41 ]
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- 41 - 09:49:47 ]
One of my favorite projects was working on the cooling systems for a "solar
simulator". The solar simulator consists of an array of xenon arc lamps
which are pointed inside a vacuum chamber. The entire set up is used to
simulate outspace conditions for spacecraft or satellites that are exposed
to the intense radiation of the sun and the vacuum of space. The xenon
arc lamps need to be kept cool because without cooling, the lamps would
not work. I designed the water and air cooling piping and tubing that
allows the lamps to work. The cooling water has to be dimineralized (or
distilled) for use with the lamps. It was exciting to see the entire system
go from design on paper to reality. The solar simulator is currently being
used for testing today.
- 43 - 09:52:34 ]
This concludes today's chat with Mary Reveley from NASA Lewis Research
Center. We would like to thank everyone for joining us today. A special
thanks to Mary Reveley for sharing her time, experiences and expertise
with us online today!
- 44 - 09:53:15 ]
Be sure to join us for our next chat later today at 11:00 a.m. Pacific
Standard time, with Nancy Roman, astronomer, from NASA Goddard Space Flight
- 45 - 09:54:05 ]
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schedule of events at http://quest.arc.nasa.gov/common/events.
- 46 - 09:56:02 ]
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