×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

gas turbines

gas turbines

gas turbines

(OP)
Reading about gas turbines for both power generation as well as say drivers for LNG compressors, the words SHAFT and SPOOL are botH used. Are these synonymous and if they are, why use different terminology?

Thanks

RE: gas turbines

In industrial type gas turbines:

The typical nomenclature is "turbine rotor spool" when the buckets are not installed, when the buckets are installed it is referred to as "turbine rotor".

The compressor rotor is always referred to as "Compressor rotor"

Compressor rotor + Turbine rotor (with distance piece when required) = Unit rotor

saludos.
a.

RE: gas turbines

In most gas turbines there are two "rotors" = one in the GT comprising the compressor blade mounts and the turbine blade mounts + the one in the generator. The two are bolted together and make one "shaft" that the operators have to consider one "unit" for operations (turning ear, cooldown, mass, inertia, lube oil, etc. They are only separate "things" when the GT is taken apart for major maintenance.

An big steam unit or nuke may have one "shaft" bolted together from the HP rotor + IP rotor + LP1 rotor + LP2 rotor + gen rotor

RE: gas turbines

(OP)
abeltio (Mechanical) racookpe1978 (Nuclear)

i want to thank both you, but the point was between SHAFT and SPOOL? SHAFT is a well known common term, why bring in SPOOL?

regards

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Resources

eBook - 10 Reasons to Choose CATIA on the Cloud
To compete in today’s fast-paced and competitive market, smaller and newer firms need a powerful platform that will enable them to compete with bigger players, without the heavy investments needed in computer hardware, software and personnel. Download Now
White Paper - Smart Manufacturing for Electronics
This white paper describes a transformative approach to electronics manufacturing made possible by the addition of Mentor Graphics to the Siemens family. It describes a completely digitalized strategy that supports both printed circuit board (PCB) and mechanical design and manufacturing, uniting the entire product lifecycle – from idea and production to customers and back. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close