Welcome to WEAP's Website WEAP
WEAP is an initiative of the Stockholm Environment Institute.

About WEAP

What's New?
Sample Screens
History and Credits

Using WEAP
User Guide
Videos (YouTube)

User Forum
Members List
Edit Profile

Additional Support
University Courses

About Us
SEI-US Water Resources Program
Please Contact Us

Interested in Energy?
Read about LEAP: SEI's software for energy planning.

Link WEAP and LEAP for combined Water-Energy planning.
Watch a video demo!

User Forum

All Topics | Topic "Diversion flow requirement"
Log in to post new messages or reply to existing messages.
Author Message
Mr. Janak Timilsena

Subject: Diversion flow requirement   
Posted: 9/24/2009 Viewed: 33733 times

I have a diversion from the river. I fixed the river head flow in terms of mgd. The time step is in monthly. I wanted to withdraw water in terms mgd based on the river flow. The constraints in the river for the diversion is also in mgd. In order to set the constraint I selected maximum diversion under the diversion link. Then I used the if expression. I tried to put the if expression on the river link just upstream of the diversion node less than say X. When I tried to put the branch (reach located at u/s of diversion node) inside the if expressions, the another small window pops up with the options of surface water inflow(mgd), Ground water inflow(million gallon)......... and at second last there was streamflow(m3)(calculated result from the previous time step). I think I have to use this options to set the constraints. But it is in m3 unit. Do I need to convert the constraints that I have i.e. in mgd to m3 for a month? Suggestions will be highly appreaciated.
Mr. Jack Sieber

Subject: Re: Diversion flow requirement   
Posted: 10/1/2009 Viewed: 33723 times
When referring to a data or result value in an expression, WEAP can convert the units for you. All you need to do is replace the unit WEAP displays with the desired unit.

For example, in the expression

PrevTSValue(Supply and Resources\River\Weaping River\Reaches\Below North Reservoir:Streamflow[m^3])

just change "m^3" to "MGD" and WEAP will do the conversion:

PrevTSValue(Supply and Resources\River\Weaping River\Reaches\Below North Reservoir:Streamflow[MGD])

Topic "Diversion flow requirement"