[TRNSYS-users] Why type11d changes the outlet temperature?

Hooman Azad hooman_azad79 at yahoo.co.uk
Mon Jun 8 14:33:41 PDT 2020


I already tried 11h, still, the outlet temperatures of the mixtures of two identical flows are not the same. I tried to use an equation component instead, to make TRNSYS understand I simply want to mix and divide some flows, with no temperature change, and it worked!

Thanks anyway




From: TRNSYS-users [mailto:trnsys-users-bounces at lists.onebuilding.org] On Behalf Of Tim McDowell via TRNSYS-users
Sent: Monday, June 8, 2020 5:04 PM
To: TRNSYS users mailing list at OneBuilding.org <trnsys-users at lists.onebuilding.org>
Cc: Tim McDowell <mcdowell at tess-inc.com>
Subject: Re: [TRNSYS-users] Why type11d changes the outlet temperature?


Hooman Azad -

If you are wanting to simply mix two fluid streams together use the "Tee Piece" component (11h) rather than the "Controlled Flow Mixer" component (11d).




Timothy P. McDowell
Executive Vice President
Thermal Energy System Specialists, LLC
3 N Pinckney St, Suite 202
Madison, WI 53703
office: 608-274-2577
cell: 608-225-5250

On 2020-06-05 05:10, Hooman Azad via TRNSYS-users wrote:

Dear friends

In Figure 1 the outlets of two collectors (CPC 1 and CPC 2) with the same temperatures are connected to a type11d (Mixer). Although type11d is not supposed to change the temperatures, the mixer’s outlet temperature in Figure 2 is something fixed, not equal to inlet temperatures…. I wonder why.

Thanks for your help



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