[Bldg-sim] building indoor temperature and humidity prediction (WUFI Plus)

Matthes, Peter pmatthes at eonerc.rwth-aachen.de
Thu Mar 8 02:25:23 PST 2018

Hello Ibrahim,

Maybe tools developed by Fraunhofer IBP can help you do simulations.


As far as I know they stared off to dynamically simulate water content distribution in walls but extended it with more tools.

It seems the “Whole building simulation” section is what you are looking for:
“To thoroughly evaluate building energy performance and thermal comfort, designers must perform dynamic, coupled heat and moisture simulations that account for the interaction between building components and the indoor/outdoor environment. Whole-building climate and energy simulation is accomplished with WUFI® Plus, WUFI® Passive, or WUFI® Plus/Passive Free.”

It is not quite cheap though. A license for a year will cost you € 1600.




Dipl.-Ing. Peter Matthes
Research Associate
Wissenschaftlicher Mitarbeiter

T +49 241 80-49782
F +49 241 80-49769
pmatthes at eonerc.rwth-aachen.de<mailto:pmatthes at eonerc.rwth-aachen.de>

RWTH Aachen University
E.ON Energy Research Center   •   Institute for Energy Efficient Buildings and Indoor Climate
E.ON Energieforschungszentrum   •   Lehrstuhl für Gebäude- und Raumklimatechnik

Mathieustraße 30
52074 Aachen   •   Germany

From: Davidson, Tom [mailto:TDavidson at DLBASSOCIATES.com]
Sent: Monday, March 05, 2018 10:48 PM
To: Ibrahim NEYA <ibrahim.neyapro at gmail.com>
Cc: bldg-sim at lists.onebuilding.org; 'Nicholas Caton' <Nicholas.Caton at schneider-electric.com>
Subject: Re: [Bldg-sim] building indoor temperature and humidity prediction


Every building is obviously quite different, but I was involved with logging indoor and outdoor humidity levels in a new near-passive residence recently, and am posting the results as an image (assuming that an image can be posted here). There was an extremely high correlation between average indoor and outdoor humidity levels in the month of Dec 2017 (look at slopes of the two values, which are both absolute humidity levels). There is significantly less variability in the indoor levels than the outdoor levels. I guess this speaks to the ability of indoor components to absorb moisture and provide a dampening effect on the outdoor humidity variations.

[cid:image003.png at 01D3B6CF.A062C770]

Thomas A. Davidson, PE

DLB Associates  |  265 Industrial Way West  |  Eatontown, NJ 07724
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From: Nicholas Caton [mailto:Nicholas.Caton at schneider-electric.com]
Sent: Monday, March 05, 2018 1:25 PM
To: Ibrahim NEYA
Cc: bldg-sim at lists.onebuilding.org<mailto:bldg-sim at lists.onebuilding.org>
Subject: Re: [Bldg-sim] building indoor temperature and humidity prediction

Hello Ibrahim,

If it’s an existing/built building, you’ll want to acquire a quantity of these to measure directly:  http://www.onsetcomp.com/products/data-loggers/ux100-003.  Very useful for objectively quantifying occupant comfort issues and operation/malfunctions of building or space-level humidity controls, which can then support energy savings/costs associated with correcting those kinds of issues.

If it’s a new building or else only on paper at the moment, any number of energy simulation software can report temperature and RH of airstreams at a system or zonal resolution.  eQuest/doe2 is among them, however I’m inclined to suggest/request you to be more specific about your purpose and end-goals, supplemented with any existing building simulation experience/skillsets.  eQuest comes with a definite learning curve before it’s outputs can be leveraged with confidence, and there might be software more purpose-built options appropriate to your task(s) at hand that I or others could suggest.


[cid:image004.png at 01D3B6CF.A062C770]
Nick Caton, P.E., BEMP
  Senior Energy Engineer
  Regional Energy Engineering Manager
  Energy and Sustainability Services
  Schneider Electric

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M  785.410.3317
F  913.564.6380
E  nicholas.caton at schneider-electric.com<mailto:nicholas.caton at schneider-electric.com>

15200 Santa Fe Trail Drive
Suite 204
Lenexa, KS 66219
United States

[cid:image005.png at 01D3B6CF.A062C770]

From: Bldg-sim [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Ibrahim NEYA via Bldg-sim
Sent: Monday, March 05, 2018 11:47 AM
To: bldg-sim at lists.onebuilding.org<mailto:bldg-sim at lists.onebuilding.org>
Subject: [Bldg-sim] building indoor temperature and humidity prediction

Hi everybody,
Please, could someone help me to find a software that can predict the indoor temperature and humidity of a building?
Thank you very much for your help


NEYA Ibrahim
Ingénieur en Génie Electrique et Énergétique

Tél : 00226 61 85 77 07

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