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


About WEAP

Home
Why WEAP?
Features
What's New?
Sample Screens
Demonstration
Applications
Publications
History and Credits

Using WEAP
Download
Licensing
User Guide
Tutorial
Videos
Resources

User Forum
Discussions
Members List
Edit Profile

Additional Support
Training
University Courses
Collaboration

About Us
SEI-US Water Resources Program
Please Contact Us

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

User Forum

All Topics | Topic "Diversion Priority"
Log in to post new messages or reply to existing messages.
 
Author Message
Huzefa Haji

Subject: Diversion Priority   
Posted: 12/13/2011 Viewed: 7090 times
Dear All,
I have a system of 3 rivers on which it is proposed to have diversions of different capacities. All 3 diversions will be discharging into a reservoir via a tunnel. The reservoir has an expected yield.

I have set up the model to simulate this arrangement using the Transmission Link with a maximum flow volume. These discharge into the tunnel modeled as a Diversion Link.

However, one major requirement is to have the diversions taking place at different priorities. Therefore, out of the 3 rivers, the 1st priority is to divert water from the southernmost river, thereafter from the next river to the north, and thereafter from the northernmost river.

Any idea how diversions work in WEAP? When having 3 diversions, is the priority of diversion equal across all of them?

Thanks alot!

Regards,
Huzefa
Behzad Sharif

Subject: Re: Diversion Priority   
Posted: 12/17/2011 Viewed: 7044 times
If you want these diversions transfer water as much as possible (considering their maximum flow volume) you had better to use diversions instead of transmission link. Then you can put a virtual "Flow requirement" on each diversion and define the minimum flow requirements equal to their corresponding diversion maximum flows. Then you can prioritize these flow requirements. There are a couple of other solutions if this doesn't help you. Look forward to hearing from you and the result.
Huzefa Haji

Subject: Re: Diversion Priority   
Posted: 12/19/2011 Viewed: 7039 times
Thank you very much for your reply.

I managed to do it via another method using demand nodes. So I put a demand node with the cumulative of all 3 diversion values as its demand, then used transmission links with specific supply preferences and max diversion capacities. A return flow link with 0% consumption value returns all the water into the reservoir. This has given me the results I wanted.

However, your method is simpler! Will do that next time!

Many thanks!

Topic "Diversion Priority"