Hi,
I'm a part-time student in need of some help with a work based problem.
I have a steam bleed line that starts from a HPS turbine inlet pipe (70.5 barg) and leads down to an atmospheric expansion vessel around 15m away. Within this steam line, located next the vessel is first an open/shut control valve and then a restriction orifice plate.
I am trying to calculate the steam flow rate through a valve when it is opened in order to gain the pressure downstream of the valve and upstream of an orifice plate in the same line. I then need to calculate the steam flow rate after the orifice plate and into the expansion vessel.
Is anybody able to help with this problem? The only formulas I can find require a pressure downstream of the valve to calculate the flow rate.
The only information that I have is attached on the drawing; this will probably make more sense.
Help will be much appreciated...Thanks in advance.