Power Station Startup Curves
Power Station Startup Curves
(OP)
Hi,
I need to calculate the rate of heating of the main steam piping of a power station. However, in order to do it I need to find realistic pressure and temperature raising curves during cold startup. Do anyone know where I could get hold of such information?
I need to calculate the rate of heating of the main steam piping of a power station. However, in order to do it I need to find realistic pressure and temperature raising curves during cold startup. Do anyone know where I could get hold of such information?





RE: Power Station Startup Curves
For once-thru supercritical units operating prior to 1990, the curves would be unrealistically slow due to concerns for "cold water cycling cleanup"- after 1990, the combined oxygenated feedwater treatment method was utilized, which considerably reduced the time needed to startup these units.
For drum type boilers, the startup time may be considerably reduced if you also use a turbine bypass system and monitored the boiler components for thermal stress.
You will find that the startup curves for european plants are much faster than US plants; they generally use subcritical once thru steam generators, thermal stress monitoring, turbine bypasses, combined oxygenated feedwater treatment, and a strong aversion to wasting startup fuel oil due to an imported fuel tax.
RE: Power Station Startup Curves
What sort of plant are you looking at?
athomas236
RE: Power Station Startup Curves
Amazing what you find on your hard drive.
athomas236
RE: Power Station Startup Curves
RE: Power Station Startup Curves
athomas236