Re: [TRNSYS-users] Wood drying

[Tomas Persson <tpe@du.se>]

Hi

I know that Stéphane Hameury worked with Moisture buffering of timber constructions at KTH, Stockholm Sweden.

Best regards Tomas Persson


Building and Environment
Volume 40, Issue 10, October 2005, Pages 1400-1412 
Moisture buffering capacity of heavy timber structures directly exposed to an indoor climate: a numerical study 

Stéphane Hameury

Department of Civil and Architectural Engineering, Division of Building Materials, KTH-The Royal Institute of Technology, SE-100 44 Stockholm, Sweden


Received 23 September 2004;  revised 14 October 2004;  accepted 18 October 2004.  Available online 19 December 2004. 

Abstract
This paper introduces a hygrothermal model accounting for the moisture and heat transport in a massive wood envelope directly exposed to an indoor climate. A better knowledge of the passive interaction between an indoor climate and a heavy timber structure could lead to presenting an alternative to high air exchange rate, and to increasing the thermal comfort of the inhabitants. So far, the model is developed as a stand-alone application with a finite difference method, and is written in a Neutral Model Format, enabling a later implementation in a modular environment for indoor climate energy calculations, called IDA ICE. A numerical simulation is provided to depict the buffering capacity of a massive timber structure as a function of the air exchange rate and the effective wood wall area.


http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V23-4F2B9P1-2&_user=646712&_coverDate=10%2F31%2F2005&_alid=894437265&_rdoc=1&_fmt=high&_orig=search&_cdi=5691&_sort=d&_docanchor=&view=c&_ct=2&_acct=C000034738&_version=1&_urlVersion=0&_userid=646712&md5=5fd0d95ed17ffb2b416625912a605cdb


____________________________________________
Tomas Persson, PhD
Solar Energy Research Center SERC 
School of Industrial Technology and Management
Högskolan Dalarna
78188 Borlänge, Sweden

Tel: +46 (0)23 778717
Fax: +46 (0)23 778701
email: tpe@du.se
http://www.serc.se
____________________________________________
 


-----Ursprungligt meddelande-----
Från: Igor Frey [mailto:igor.frey@xylon.eu] 
Skickat: den 1 april 2009 09:42
Till: trnsys-users@cae.wisc.edu
Ämne: [TRNSYS-users] Wood drying

Hello,

I'm using TRNSYS 16 to create a thermal model for wood drying.
I know that there was a model of water vapour diffusion into solids in 
the previous version (type 158), but it doesn't exist anymore.
I've also had a look to the "buffer humidity storage" in Trnbuild, but 
it is not suitable to my application, because it's not detailed enough.
I would like to find a component which could give the humidity of wood, 
its temperature, the evaporation of vapour, depending of air condition 
around the wood (temperature, relative humidity, celerity...)
I haven't found anything, and I'm afraid I'll have to program it myself...
Does someone know if this component exist, if I could be able to find 
something approaching ?

Thanks a lot

Bets regards

-- 
Igor FREY
Ingénieur Thermicien
XYLON Services
6, chemin de Malacher
38240 Meylan
tel : 04 76 18 56 41
fax : 04 80 80 60 47

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