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January 12, 1999
QuestChat with Mary Reveley

Aerospace Technology Gas and
Fluid Systems Design Engineer
NASA Lewis Research Center, Cleveland, OH

[ Oran/NASAChatHost - 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 joining this chat.

[ Oran/NASAChatHost - 1 - 08:16:59 ]
Once the chat begins, Mary will attempt to answer as many of your questions as she can, but please be patient. We may use "moderation" during the chat if Mary falls behind with our questions. This means that only a few questions will be posted to the chat room at a time. Don't worry if your questions do not appear on your screen immediately during moderation. They will be held in our chat queue and posted as Mary answers those ahead of you.

[ Oran/NASAChatHost - 2 - 08:18:28 ]
As a reminder, remember to enter "Your Handle" in the box provided, before posting questions to the chat room. Once you've done this, please let us know that you have logged on for today's chat.

[ Oran/NASAChatHost - 3 - 08:18:56 ]
At the conclusion of today's chat, we ask that you take a few minutes to let us know what you thought about it. For your convenience, you may use our online feedback forms at http://quest.arc.nasa.gov/qchats/qchat-surveys. We look forward to hearing from you!

[ Oran/NASAChatHost - 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.

[ Oran/NASAChatHost - 13 - 09:00:34 ]
And now, here is Mary Reveley to answer your questions.

[ MaryReveley/LeRC - 11 - 08:59:31 ]
RE: [Christine-Christine/EasternHighSchool] 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.

[ MaryReveley/LeRC - 14 - 09:01:35 ]
RE: [Christine-Christine/EasternHighSchool] 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 hired.

[ MaryReveley/LeRC - 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.

[ MaryReveley/LeRC - 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 or nitrogen.

[ MaryReveley/LeRC - 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 are?
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 "aeronautical" research.

[ MaryReveley/LeRC - 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.

[ MaryReveley/LeRC - 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.

[ MaryReveley/LeRC - 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 lab.

[ MaryReveley/LeRC - 28 - 09:24:18 ]
RE: [Micah-Mr.Richard/homeschool] Have you ever worked with Hyper-X planes?
Nope. sounds interesting though.

[ MaryReveley/LeRC - 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!

[ MaryReveley/LeRC - 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.

[ MaryReveley/LeRC - 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.

[ Oran/NASAChatHost - 39 - 09:43:41 ]
For those of you leaving us soon, we would like to remind you to share your thoughts about today's chat with us at http://quest.arc.nasa.gov/qchats/qchat-surveys.

[ MaryReveley/LeRC - 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.

[ Oran/NASAChatHost - 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!

[ Oran/NASAChatHost - 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 Center.

[ Oran/NASAChatHost - 45 - 09:54:05 ]
To learn more about upcoming chats with NASA experts, visit our online schedule of events at http://quest.arc.nasa.gov/common/events.

[ Oran/NASAChatHost - 46 - 09:56:02 ]
Thank you again for joining us today. We hope you can join us again!


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