Recent content by MechMad1

Thanks for your answer racookpe, much helpful!

Reading the NB link, I get the picture of Boilers and Pressure Vessels ... For example, in Connecticut, it is mandatory to comply with ASME I and II, but not with ASME VIII. For Turbines, is it mandatory to design these equipment according to US standards? (ASME, API, etc.) I mean, by law, or...

General question: If you are building a combined cycle in the United States, the Steam/Gas Turbine & HRSG must be designed according to US standards? Let's say that the owner of the plant is not indicating anything concerning the design codes.

I think it is according to ASME B31.1, that when we have a system with high pressure (typically more than 62 bar), we need to use double block valves when connecting the system to atmospheric pressure (e.g., drains and vents). I would like to know in which part of the code this is state, I can...

Thank you for your answers. ijzer, the ASME code seems very interesting. I'll try to get a copy.

I've always thought that a power plant (combined cycle, biomass, solar) will de designed according to ASME B31.1 Now, since in solar thermal power plants they use heat transfer fluids, will it be possible to design according to ASME B31.3? Can a part of the power plant be designed with ASME...

All clear now. Thank you all.

Yeah, I agree. This data may be referenced for performance. The outlet pressure will be determined by the HRSG downstream the turbine (the losses in the HRSG). But I still don't understand something. The total pressure in the exhaust is the sum of the static and the dynamic pressure. The flow...

" This pressure is essentially from the exhaust mass flow impinging at its mean velocity against a surface, not that different than aerodynamic force, and calculated the same way. " But that would be the dynamic pressure, instead of the static pressure, right? BTW, what type of pressure is...

I have a manufacturer that states that its turbine has a Outlet static pressure of, let's say, 200 mmH2O. How can I translate this information into the outlet pressure in bars? I get the idea that the static pressure is the pressure of a fluid when it is not moving, like the air inside a car...

Yes. I think you have confirmed my thoughts. Thanks!

Hi! When deciding which configuration of pumps to use in a power plant (feedwater, condensate, cooling systems, ...), I always have the same doubt, 2x100% or 3x50%. As far as I know, 3x50% configuration are normally more expensive than 2x100%, but allows you to use just one pump if the duty is...

Hi, will have a look at the Crane. Thanks. LittleInch, I have a presurized system (40 bar) which is the pipe (8") from a boiler to the steam turbine (ST). The ST end of the pipe is blocked. To warm up this main line, we install a vent to the atmosphere (2"~4"). This vent has just an on/off...

Hi all, we have a vent pipe that we use to warm up the main pipe (steam to the turbine). This vent pipe is just a pipe with an isolating valve and it discharges to the atmosphere (we are thinking about getting a silencer). I'm trying to calculate the flow that will be evacuated trough this line...

Thank you! I found this very interesting. Problem solved!