Page 47
Example 2 BS3680 U-Throated Flume
In this example it is required to calculate to BS3680 the flow through a U-
Throated Flume without any hump. Absolute calculation will be used, and
there is a requirement for an alarm to indicate a low flow condition which
will be set to Relay 1. The flow rate is to be displayed in millions of US
gallons/hour and the totaliser is also to record the flow in millions of US
gallons, the resettable totaliser is to be displayed during RUN. The
transducer to be used is a dB3.
The distance from the face of the transducer to zero flow (P105) is 35
inches and max head (P704) is 15 inches, maximum flow(P705) which
will be calculated by the FlowCERT LITE as 0.1784 Mil USG/Hour
The dimensions of the flume are as follows:
Approach Channel diameter (Dim “A”) P710 = 28 inches
Throat diameter (Dim “B”) P711 = 20 inches
Throat length (Dim “C”) P712 = 40 inches
To Next Page
Loading...
Need help?
General
