DSK wrote:


Actually, they aren't. There is no bypass from the HP and/or IP turbine
directly into the condenser in any plant I've ever steamed, naval or
civilian. So, there may be many plants out there with such valves, but
they're certainly not standard.


Well I guess this company for one never sells any?

http://www.emersonprocess.com/fisher...ditioning.html

Doug please try to engage your brain. In a plant where multiple engines
are used there has to be a way of taking one of them off line without
trashing steam flow in the whole plant right? Think about what happens
when a generating turbine trips! You can't just close the turbine inlet
valve as the boiler pressure would skyrocket. What you do is open a
bypass valve. In big plants you may also inject water to cool the steam
(it's pressure is dropped by adiabatic expansion after the valve) and
thence to the condenser.

If you have a plant where one engine takes the steam from another and
you want to drop the second off line you first open a bypass valve. So,
that's all, why did you even argue about it with me?


Cheers