Defining the Feed Water Flowrate and Recovery
Feed and Product water flowrates should be specified using the text boxes in the middle of the blue arrows. First, Feed or Permeate flow option should be selected using the radio button in the upper part of the arrow, later the flowrate can be specified.
Figure 1: Definition of feed or product flow for a UF system
Notes:
- WAVE would display a warning if the Feed or Product flowrates are specified as 0 or a negative number
- Given a feed water flowrate, WAVE would calculate a product flowrate based on a default recovery. Given a product water flowrate, WAVE would calculate a feed flowrate based on a default recovery. For UF, a default recovery of 95% is used.
WAVE does give the user the possibility of defining a recovery that defines feed/product flow if product/feed flow is known. This is done by:
- Right-clicking on the UF icon
- Selecting “Define Recovery”
-
Entering the desired recovery
Figure 2: Definition of recovery for a UF system in the Home page
The default recovery value for UF systems is 95% in WAVE. The recovery defined above is a system recovery and is used– currently based on UF configuration and strainer recovery