Boiler silica
Boiler silica
(OP)
Does anyone have a silica pressure chart? As related to boiler pressure vs. silica to turbine.
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RE: Boiler silica
Go to Section III, A.1
http://www.gc3.com/techdb/manual/boilfs.htm
RE: Boiler silica
Silica volatility is part of the equation but so is the efficiency of your cyclone separators and your mist eliminators.
Several EPRI publications have the requested information in them if you have access.
RE: Boiler silica
RE: Boiler silica
RE: Boiler silica
You need to start a new thread for your question.
rmw
RE: Boiler silica
For HRSG's there is a growing tendency to not use chevron driers ( in the drum steam space) and instead use demister pads- these may provide an improvement on initial steam quality leaving the drum, but of course have no impact on the silica added in the spray attemporator.
Other causes of spikes in silica include drum water level "humping" caused by uneven steam liberation along the length of the drum ( related to the steam riser distribution form diffferent waterwall zones ), incorrect hole drilling pattern in the drum feedwater pipe, incorrect pressure compensation in the drum water level indicator, and the need to raise drum water lvel due to excess steam entrainment in the downcomer inlet vortex..