Is there a maximum test pressure allowed for pressurizing a boiler with air to look for leaks in power boilers? I don't see one in the boiler code. We try to limit pressure due to stored energy.
We have a generator seal oil system where the seal oil runs through a vacuum tank which in turn supplies suction to the seal oil pump. The tank has severe foaming problems if we attempt to increase the tank vacuum to normal operating levels. Water in the oil does not appear to be the problem...
We have utility boilers where oil is supplied to the burners and part is recirced back through a "constant differential pump" which controls the differential across the burner tips. This is a multistage centrifugal pump. The biggest ones we have are 440 GPM and 760 ft head. They pump...
Does anyone have a good reference book on large duct design specifically with regard to expected pressure drops in fittings and design and benefits of turning vanes? I am looking at large (20' square)power plant exhaust duct and would like to know if I could reduce pressure drop significantly...
