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Posted by marty on October 30, 2005 at 12:17:45:
In Reply to: to lower working pressure posted by SLopez on October 11, 2005 at 12:36:05:
: We have an old 88BHP HERING boiler working at 12kg/cm2. For different reasons we reduced our steam demand and right now our consumpltion is less than 10% of the boiler´s capacity. We already ordered a new one to meet our requiements but unfortunately we will get it within our facilities in the next three months.
: Would somebody tell me if it is possible to set the output pressure of our boiler from 12 to 5 kg/cm2?What should be the risks? Do you think this will affect our gas consumption costs?
: Thanks a lot.
Reducing your outlet steam pressure will not help you because your demand is still not there. Yes it will affect your gas charges because you are generating steam to not be used. If you are running at 10% capacity you could run into problems with oxygen corrosion and increased chemical costs. This could also damage your supply and return piping. Your return tank temp is probably low as well. There is really no one answer to your question. You must find a way to keep your system hot. End of the line traps will help, steam injection into your return tank will help. Both of these suggestions will remain in place when the new boiler arrives and will benifit the new system for averall effiecency. Find a way to use your steam if you can. Good luck