Dear Karol,
have set temperature to
20 and humidity to “relative humidity” and “outside”. What
will be value of ventilation air humidity?
- Type 56 does the following:
Example 1:
ambient air conditions: Tamb = 8 °C and RHamb = 80 %;
ventilation: Tvent = 20 °C and RHvent = outside
Result: Type 56
calculates the resulting absolute humidity gain by calling
psychometrics kernel routine with that Tvent = 20 °C with
RHvent = 80 %
Example 2:
ambient air
conditions: Tamb = 8 °C and wamb = 0.003 kg/kg
ventilation: Tvent = 20 °C and wvent = outside
Result: Type 56
uses wvent = wamb = 0.003 kg/kg as the resulting absolute
humidity gain
- Thus, if you want to take into account the
condition process which changes the relative humidity you
have to
- calculate the changed rel. humidity acc. to
temperature change by an another component (AHU,
Psychometrics) and
- give the changed rel. humidity as an input in
the ventilation type.
Kind regards,
Marion
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Dipl.-Ing. Marion Hiller
TRANSSOLAR Energietechnik GmbH
Stuttgart - Munich - New York - Paris
t:
+49.711.67976.0
f:
+49.711.67976.11
www.transsolar.com/
KlimaEngineering - Technologien für
energieeffizientes Bauen und Nutzerkomfort in Gebäuden
Transsolar Energietechnik GmbH, Curiestrasse 2,
70563 Stuttgart
Amtsgericht Stuttgart - HRB 23347
/ Steuernummer: 99073/00911 / USt-IdNr.: DE 152272639
Geschäftsführer: Matthias Schuler, Thomas Auer, Stefan
Holst, Dieter Schnelle
Dear Experts,
In Ventilation Type
Manager in TRNBuild there is possibility to set temperature
of ventilation air to outside and also humidity to outside.
I have set temperature
to 20 and humidity to “relative humidity” and “outside”.
What will be value of ventilation air humidity?
1)
Does TRNBuild calculate that by
heating up or cooling down outside air, to setting (20), the
relative humidity also change?
2)
If yes: Does TRNBuild take in to
account that part of water will condensate if outside
relative humidity is high and set ventilation temperature is
much lower?
Your
respond will be helpful because it is not possible to direct
check it by simulation.
Kind regards,
Karol
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Karol BANDURSKI M. Sc.
Faculty of Civil and Environemntal Engeneering
Division of Heating, Air Conditioning and Air
Protection
Poznan University of Technology
www.put.poznan.pl/~karol.
bandurski
https://www.researchgate.net/profile/Karol_Bandurski