Re: [TRNSYS-users] Wet cooling tower modeling

[a8304506@graduate.hku.hk]

Hello, Adel.

One possible reason is that the selected parameters for the cooling tower is not
for the entering cooling water conditions applied.  There is no thermal mass in
the cooling water circuit.  This can cause substantial oscillation in the
simulated results, say a unreasonably high or lower water temperature that can
lead to the said error.  You may add a water pipe (Type31) in the cooling water
circuit.  Finally, you use the cell outlet temperature (Output 5) as the outlet
water temperature from the cooling tower.  I think it is not appropriate.  I
will suggest you to use the sump outlet temperature (Output 1) instead.

Best Regards
C.K. Lee
City University of Hong Kong


Quoting Mohamed Adel <mohamed.adel@sl-rasch.de>:

> Dear All,
> 
> While modeling a wet cooling tower in a simulation i always receive an error
> from the utility routine psycho-metrics.  Please advise how to fix this
> error.
> Kindly find attached the needed data.
> 
> Best Regards
> 
> Mohamed Adel
> M.Sc. Ing.
> 
> SL-Rasch GmbH
> Special & Lightweight Structures
> Kesslerweg 22
> D-70771 Leinfelden-Oberaichen
> t: 0049 176-32315274
> mail:mohamed.adel@Sl-rasch.de
> Best Regards