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There is a link to photo of the cracks and drawing. http://wgrajfoto.pl/pokazfoto/img1110/pekniecianadyszysptg5b52.jpg

Helo, we found some cracks on nozzle ring segment. We are thinking what to do next - replacement of the nozzle or repair. What are yours suggestions? Steam properties in front the nozzle: p=39[bar] t=520[C]

Helo, I'm looking for a good solution to grind wood pellets. I know that grinding pellets in hamer mill is quite dangeroug because of explosion which can occure in normal operation of hamer mill. Have anybody experience with other type of mills like roller mill or "multicracker"? We need to...

The existing boiler is quite old (1980) and oversized. It is russian construction and we don't have contact with constructor of it. I estimated in thermoflow that we can expected something about of 170 MWe instead of 225 MWe on coal. I know that the thermoflow maybe is not appropiate software to...

Helo, I have a question about conversion pulverized coal boiler to burn 100% of biomass. Its main parameters: steam generation 650 t/h 535/130 bar. In future we want to burn 100% of wood chips in that boiler. Have anybody some experience with such conversion? What are possible steam...

Reply to Flareman: - the basic frequency generated by blower is 273Hz - the temperature is about 110oC - the blowers (booster fans) are used to draught flue gases after the desulfurization process. I've new inforamation. Before building the new chimney they were using to old chimneys. Height...

Helo, I reiceived more data about the problem and I going to put into forum. So we have the spectrum of noise source (two booster fans after FDG installation: http://files.engineering.com/getfile.aspx?folder=399d95d8-f725-4581-ad60-fc271df4763f&file=spectrum.jpg Rob45: the measurements on the...

Helo, we have a problem with 2 booster fans which are the main source of noise. On the top of chimeney the level of noise is about 110 dB. 1km from the chimeney there is a control point and there is about 61 dB. We need to decrease the noise level to 55 dB at the day and to 45 at night...

This is an orbit of shaft generator. http://files.engineering.com/getfile.aspx?folder=3e5e7c17-cd82-4872-9560-3472ce56e621&file=orbit2.jpg http://files.engineering.com/getfile.aspx?folder=e3cdae8e-d5dd-4b20-9d71-56b406960aeb&file=orbit2.jpg

Yes, it is a flange style coupling. We’ve got runouts on the coupling. Number of Journal (bearing 3) Journal (bearing 4) coupling bolt TURBINE SP GENERATOR 1 -1 -1 2 -4 -2 3 -5...

This is photo of that "bearings support" (is it a correct name of it?) http://files.engineering.com/getfile.aspx?folder=c4815fa8-1add-4b91-add3-213a14b698de&file=stojak_nr4.jpg

Problem with high X2 appears before synchronization and after it there are no significant changes. This is an old turbine from 1964. This turbine was ge-neral overhaul but problem with X2 appeared after generator failure. The generator and the rotor of generator were repaired. We've had...

This is a air cooled generator. Vibration is in the generator. The main vibration frequency is 100Hz at 3000rpm.

We've got problem with 2rd harmonic frequency on the 4# bearing of the turbine. This is 34,1 MW LANG. http://files.engineering.com/getfile.aspx?folder=67d8ac48-bd46-4481-8dff-c4b1151035a5&file=drgania.jpg...