Product(s):	Bentley HAMMER
	Version(s):	08.11.xx.xx
	Environment:	N\A
	Area:	Output and Reporting

Problem

What do the Level and Head values for a surge tank signify in the Transient Analysis Detailed Report?

Solution

The terminology in the Transient Analysis Detailed Report is a little different from that used in the surge tank properties. In the Transient Analysis Detailed Report, "Level" in is the hydraulic grade inside the tank. "Head" is the hydraulic grade outside of the tank, where it connects to the pipe. The difference between the two is the headloss across the orifice that connects the tank to the pipe.

See Also

How to view and graph extended transient results such as gas volume for hydropneumatic tanks, pump or turbine speed, air valve extended data, etc.

How can you calculate the headloss coefficient for the opening of a surge tank?