How to obtain SRT

Hello everybody!
I've just started using WEST since a few days, so I'm not an expert.
I cannot find the way to obtain the Sludge Retention Time of my plant. How can I do this?

Thank you

SRT and HRT can be computed by placing a ProcessCalculator block (cf. Sensors palette) on the layout's canvas, and subsequently feeding the following data items to it:
[list]
[li]V & TSS of ASU's[/li]
[li]Q_in[/li]
[li]Q_out and TSS_out[/li]
[li]Q_waste and TSS_waste[/li]
[/list]
Have a look at [url=http://userarea.west.mikebydhi.com/Download/Public/SRT-HRT.jpg]http://userarea.west.mikebydhi.com/Download/Public/SRT-HRT.jpg[/url]. You will notice that in this screenshot SRT is additionally fed into a block that implements a moving average, in order to smooth its dynamic variation.

You may want to place the ProcessCalculator block and its connections on a different layer that can optionally be hidden, in order to avoid too much clutter.

Thank you so much Filip!! You were very clear.

Matteo