3 replies to this topic

[zahraniazi]

I want to know how to size warm up line of steam turbine?

 

[fallah]

Hi Zahra,

 

In general a steam turbine, especially larger units, should be warmed gradually by recommended (normally vendor recommendation) warm up ramps rate; then relevant line would be sized accordingly. But typical size of warm up line is one inch...

[zahraniazi]

Dear Mr. Fallah

there is a steam turbine with HPS inlet line 8".

is not 1" line for warm up of HPS line (8") small?

Best Regards

[fallah]

Dear Zahra,

 

When we see that the ramp rate for warm up of the steam turbine to bring it to operating temperature is in order of magnitude of "Degrees Celcius/hr", then appears a 1" line couldn't be so small for such operation in a steam turbine with inlet line of 8". In most cases mentioned line is included a globe valve to allow for adjusting the recommended ramp rate...