Plug flow reactor Simulation

iacopo ducci
Posted Mon, 09 Jan 2017 17:05:03 GMT by iacopo ducci University of Florence
Hi,
how do I simulate a plug flow reactor for a tracer test? is there a PFR block in West 2016? or I can just use many CSTR reactors in series to simulate a PFR reactor.

Thanks
Iacopo
Enrico Remigi
Posted Mon, 09 Jan 2017 20:01:33 GMT by Enrico Remigi WEST Product Owner
Hi Iacopo,
no: there's no specific block / model for plug-flow.
One would normally mimic the plug-flow behaviour by using [b]tanks in series[/b].
Please take a look at the "Non-ideal Mixing: Tracer Test" video here: https://dhiwestweb.wordpress.com/videos/
João Vieira
Posted Tue, 10 Jan 2017 13:00:06 GMT by João Vieira
Hello,

1 - Could you give please give me a reference in how to plan a tracer test?

2 - Which substance/parameter can I/should I use as tracer?

Thank you,
Kind regards,
João Vieira
Enrico Remigi
Posted Tue, 10 Jan 2017 14:22:43 GMT by Enrico Remigi WEST Product Owner
The video should answer your questions, I guess.
Basically you need to use a soluble, non-reactive substance (e.g. S_I) to model your tracer.
João Vieira
Posted Fri, 27 Jan 2017 00:07:29 GMT by João Vieira
In the tracer test experiment, is there any relation between the volume of the 5 equalization tanks and the volume of the real activated sludge reactor?
Thank you
Enrico Remigi
Posted Fri, 27 Jan 2017 10:23:41 GMT by Enrico Remigi WEST Product Owner
The sum of the N 'virtual' tanks must equal the actual volume of the tank

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