Previous in Forum: Busbars for 2300A and 4512A   Next in Forum: Shunt Capacitors and Reactive Power
Close

Comments Format:






Change Mode
Close

Subscribe to Discussion:

CR4 allows you to "subscribe" to a discussion
so that you can be notified of new comments to
the discussion via email.

Close

Rating Vote:







Add Vote
4 comments
Rate Comments: Nested
wingman1985
Power-User

Join Date: Jul 2009
Location: China
Posts: 146

Fired Shutdown

03/18/2010 4:54 AM

leaving coalescing filters and moistrue separators in place when the temperature is less than 40°F could result in severe icing of the filters and a rapid rise in differential pressure, which will lead to the fired shutdown of the gas turbine.

what does "fired shutdown" mean here? it seems to be a complex concept. I have googled this but the resources are too overwhelming for me to digest within a short a time.

---------------------------------------------------------------------------

BTW: For tornado. I am an in-house translator working with a heavy-machinery manufacture company. There is a lot of materials to translator but we are under-staffed so i am always a lit bit overstretched. Maybe I need some kind of relaxation or something.

__________________
 I am not a home work cheater. I am a translator seeking professional help
Register to Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

Good Answers:

These comments received enough positive votes to make them "good answers".

"Almost" Good Answers:

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, vote them!
Anonymous Poster
#1

Re: Fired Shutdown

03/18/2010 8:43 AM

Normally teh GTs can have

emergency shut down where you cut off the fuel and bring the GT to halt.

Fired shut down - where the fuel (and hence fire) is slowly extinguished and the GT is gradually slowed down - I think to 40% or so of rated speed and then the fuel is cut and the Gt is slowed gradually down through the auxiliaries to barring speed.

So in your case, the GT will go for emergency shut down, which may overstress the mechanicals, but can be planned shut.
Register to Reply Score 1 for Good Answer
No more "Almost" Good Answers.
Tornado
Guru
Technical Fields - Technical Writing - New Member Engineering Fields - Piping Design Engineering - New Member

Join Date: May 2009
Location: Richland, WA, USA
Posts: 21017
Good Answers: 795
#2

Re: Fired Shutdown

03/18/2010 12:08 PM

Your situation combines two great challenges. Not only language-to-language, as for general communication; but technical concepts, requiring a background in the rationales of codes and specifications to be translated.

A two-person team might be valuable for this: one on the language part, one on the engineering. It's hard enough to make engineering English understandable to bean-counter English, let alone bridge two languages!

__________________
 In vino veritas; in cervisia carmen; in aqua E. coli.
Register to Reply
2
billgburns
Participant

Join Date: Mar 2010
Posts: 1
Good Answers: 1
#3

Re: Fired Shutdown

03/18/2010 4:52 PM

A frozen coalescing filter will definitely block some flow - usually not all flow. We have found that as the gas temperature approaches 32F you will find more condensed water and hydrocarbon in the gas stream. Thus the need for a coalescing filter increases as you approach freezing. There are some options

A) If you have a duplex filter arrangement you can open the second filter as you approach 32F - this gives addtional flow capacity. Once you have dropped below 32F the water aerosols likely will not flow into the filter - at that time close the flow to the first vessel - allowing it to thaw out.

B) The switch to the second filter could be automated on high differential pressure

C) Installing an inlet circulation heater to maintain temp above freezing

Bill Burns
Filtration Technologies LLC
Register to Reply Good Answer (Score 2)
No more Good Answers. Go to first "Almost" Good Answer
lorpete
Participant

Join Date: Jul 2009
Location: Port Hedland West Australia
Posts: 1
#4

Re: Fired Shutdown

03/19/2010 12:22 AM

A fired shutdown is for thermal stability of the rotor in a controlled manner.

As for the filter housing one can use the bleed air diverted to the intakes during a icing condition depending on your setup?

Mech

__________________
 Kind Regards Pete Butler
Register to Reply
Register to Reply
Have a Different Question?
4 comments

Good Answers:

These comments received enough positive votes to make them "good answers".

"Almost" Good Answers:

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, vote them!
Copy to Clipboard

Users who posted comments:

Anonymous Poster (1); billgburns (1); lorpete (1); Tornado (1)

Previous in Forum: Busbars for 2300A and 4512A   Next in Forum: Shunt Capacitors and Reactive Power

Advertisement

Got Something to Say?
Ask a Question
Start a Discussion

Search this Forum
Electrical Engineering:
Go

CR4 Sections
Aerospace
BioMech & BioMed
Chemical & Material Science
Civil Engineering
Communications & Electronics
Education and Engineering Careers
Electrical Engineering
General Discussion
Instrumentation
Manufacturing
Mechanical Engineering
New Technologies & Research
Software & Programming
Sustainable Engineering
Transportation

Site Directories
Forum Directory
Blog Directory
User Group Directory
RSS Feeds

CR4 Rules of Conduct
CR4 FAQ
Site Glossary

Who's Online (98 right now)
Show Members
Advertisement