Thunderhead Engineering Forum

Public Forum => PyroSim => Topic started by: Helene on May 03, 2019, 05:48:36 am

Title: tracer for HVAC
Post by: Helene on May 03, 2019, 05:48:36 am
Hello,
Is it possible to have massless tracer when using HVAC network? Can not find how to. For supply vents no problem.

thanks
Title: Re: tracer for HVAC
Post by: Bryan Klein on May 06, 2019, 10:18:02 am
Hello,

This is not possible at this time, it is a limitation of FDS in how we cannot specify particles to source from our recirculate through HVAC vents/systems. I would recommend that you add a feature request for this to the FDS Issue Tracker. https://github.com/firemodels/fds/issues/new (https://github.com/firemodels/fds/issues/new)

If you are looking to trace the movement of gasses within a room/volume, then you could just add a particle cloud source for the room volume.  Make sure to set the age of the particles such that they move around for the duration you are interested in.

-Bryan
Title: Re: tracer for HVAC
Post by: Helene on May 08, 2019, 09:58:45 am
Thank you Bryan, very helpful!

It gave me a great idea!!

I will submit it on fds issue, too.

Helene
Title: Re: tracer for HVAC
Post by: Helene on May 09, 2019, 09:07:36 am
I have created little volumes of particle clouds (massless tracer) in front of each HVAC vents (17 in total). Works beautifully, just like tracer from supply vents. It seems to be doing the same job. Thanks again!
Title: Re: tracer for HVAC
Post by: Bryan Klein on June 24, 2019, 04:17:19 pm
I'm glad to see it worked out and thank you for posting to the tracker.

-Bryan
Title: Re: tracer for HVAC
Post by: Kebebza on August 15, 2019, 10:14:12 pm
It works well It's great