Barto,
It is not really possible to diagnose the problem without looking
at the project. I would recommend using an online plotter to look at
all of the temperatures and flow rates of all the flows going into
and coming out of the tank. If for some reason all of the
temperatures in the system are over 60C (including the temperature
of the tempering water) then Type953 would not be able to temper the
outlet flow. It could also be that you are seeing higher than 60C
temperature at the mixing valve when there is no flow through the
valve.
If you are not able to sort out the problem using Type65 as a
debugging tool then you should send your project to your distributor
so that they can have a look at it.
Kind regards,
David
On 4/7/2014 08:16, Barto Pene wrote:
Hi ,
I get some strange result i.e I can not find logic in it: I
use tank Type 60c only heated by standard solar collector
installation. I use the differential controller(monitoring
temp.) to limit the tank top temperature to 60C and I'm also
using tempering valve Type 953 with diverting and three-wat
valves for controling the outlet temp. In the simulation I get
temperatures at the outlet of the three-way valve (after
mixing) higher than 60C (even 80-90C) how is it possible?
When I model the HX in Type60c with glycol solution I get
convergence problems and with water there is no problem...?
Thank you
Regards
Barto
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David BRADLEY
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Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
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