Electostatic Charges in Gas Turbine Compressor

We have GE frame 9E gas turbine. Gas turbine have a carbon brush at Brg#4 i.e Generator DE. I want to know how the electrostatic charges developed in compressor are grounded. Is there any carbon brush near bearing no#1 or 2. Recently during inspection of the accessory gear box of a GT, half beari

Counterweight Problem?

I am mounting a prototype unit on the front of a center steer stiga mower. The problem I have is trying to raise and lower the unit[400 lbs] with the existing hydraulic lift cylinder capable of lifting aprox. 100 lbs and allow the unit to maintain a 50 lb ground pressure. To do this I built a counte

About Nordström Black Holes

Once, in a discussion, someone suggested to put Uri Geller, the parapsychologist, into a black hole, and let him escape by his own means.

Matt Visser, in Lorentzian Wormholes, says that even if you happened to find a Einstein Podolsky Rosen Bridge,you should avoid to jump into it to play "starg

How to Upload a PDF to the Web

I have a 322 megabyte PDF file of some of my previous work, including doctoral dissertations, patents and research reports, and seek a simple and inexpensive way to make it freely available on the web, being the author alone.

Either, some free websites accept texts, but of limited length (1

Grades of Steel

I have found follwing steels on net for some purpose but not able to get its

composion in 2-3 steel ebooks i have, also on net. Any one can plz preovide their

composition, where they r used .Grades are-

1.SCMn3A
2.GCD50
3.SMn443
4.SM45C

Thanx in

The Dark Ages II

Bought this book last night -- obviously haven't had time to read it. But it spawned a discussion with a colleague this morning, at work. And I've had discussions in the past with other colleagues about this very subject. Anyhow, here's an editorial description from Amazon.com about the book and on

Neutral Grounding Reactor Size

I need help sizing a neutral grounding reactor so the Isc 3p=Isc SLG

Reactor sizing:

Isc SLG=3(E/1.73) / (x''d+x2+x0) and Isc 3p=(E/1.73)/x''d

3(E/1.73) / (x''d+x2+x0)= (E/1.73)/x''d

Add new reactance

3(E/1.73) / (x''d+x2+x0)+3xnew=(E/1.73)/x''d

INOX Steel vs. Paint

Someone to been experienced with Systems of painting for the inside of tanks that contain water demineralized to generate steam (Injection to turbine) and that painting system guarantee the conductivity (Pollution) of the water?. Avoiding this way to fit upthe tanks in stainless steel. Does this s

Range Settings for Relay Elements

Greetings!

Please tell me what is the Setting Range for over and undervoltage (59/27) phase to phase protection Relay elements.

The normal relay votage is 150V (Is the right?), and current 1A/5A.

So I'm thinking (0- 200V) for phase and (0- 347 (200*sqrt3) V) for phase to

Saving Water, Burning Watts

For nearly a century, farmers in Griffith, New South Wales, have relied on an irrigation system that covers some 2600 square kilometers. The company that runs that network is Murrumbidgee Irrigation. Water flows from the Murrumbidgee River into two large storage dams and from there into a networ

Designing Axial Flow Impellers

I am trying to design axial flow fans, but the only reference I have found in my library is in Karassik's Pump Handbook.

He references the method devised by Hill and Peterson and another one by Steppanoff, based on NACA airfoil data. I can't found any of their books and Mr. Karassik didn't fi