Advanced

Validation of a 1D transient heat and moisture calculation tool under real conditions

Mundt Petersen, Solof LU and Harderup, Lars-Erik LU (2013) Thermal Performance of the Exterior Envelopes of Whole Buildings XII In [Host publication title missing]
Abstract (Swedish)
Stricter Swedish building regulations require a moisture-safety design process to be carried out before houses are built. In order to predict moisture-critical conditions, a properly verified, user-friendly and reliable calculation tool that could be used in this design phase, is required.

This paper initially presents a blind method that could be used in order to verify heat and moisture calculation tools in a reliable manner. Furthermore, general results and findings from blind validations using a transient heat and moisture calculation tool are summarized and presented.The comparisons include measurements and calculations of temperature and relative humidity and were carried out in northern European climates.

In... (More)
Stricter Swedish building regulations require a moisture-safety design process to be carried out before houses are built. In order to predict moisture-critical conditions, a properly verified, user-friendly and reliable calculation tool that could be used in this design phase, is required.

This paper initially presents a blind method that could be used in order to verify heat and moisture calculation tools in a reliable manner. Furthermore, general results and findings from blind validations using a transient heat and moisture calculation tool are summarized and presented.The comparisons include measurements and calculations of temperature and relative humidity and were carried out in northern European climates.

In general, the results show a good correlation between measured and blindly-calculated values. Comparisons show that the studied tool can be used during the design phase to predict moisture risks. However, factors such as the influence of impaired-temperature measurements on relative humidity have to be taken into account. There is also a need for outdoor climate-boundary conditions that take into account critical periods.Measurementsandcalculations also established that themostmoisture-critical conditions ingeneral occurred in the exterior part of the frame, behind the air gap. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Wood frame walls, Blind validation
in
[Host publication title missing]
editor
Karney, Richard and Desjarlais, Andre
pages
12 pages
conference name
Thermal Performance of the Exterior Envelopes of Whole Buildings XII
ISBN
978-1-936504-61-9
language
English
LU publication?
yes
id
996fb72c-a1cd-4340-98f6-71caafe246a0 (old id 5218549)
date added to LUP
2015-03-28 08:47:26
date last changed
2016-04-16 11:09:51
@inproceedings{996fb72c-a1cd-4340-98f6-71caafe246a0,
  abstract     = {Stricter Swedish building regulations require a moisture-safety design process to be carried out before houses are built. In order to predict moisture-critical conditions, a properly verified, user-friendly and reliable calculation tool that could be used in this design phase, is required.<br/><br>
This paper initially presents a blind method that could be used in order to verify heat and moisture calculation tools in a reliable manner. Furthermore, general results and findings from blind validations using a transient heat and moisture calculation tool are summarized and presented.The comparisons include measurements and calculations of temperature and relative humidity and were carried out in northern European climates.<br/><br>
In general, the results show a good correlation between measured and blindly-calculated values. Comparisons show that the studied tool can be used during the design phase to predict moisture risks. However, factors such as the influence of impaired-temperature measurements on relative humidity have to be taken into account. There is also a need for outdoor climate-boundary conditions that take into account critical periods.Measurementsandcalculations also established that themostmoisture-critical conditions ingeneral occurred in the exterior part of the frame, behind the air gap.},
  author       = {Mundt Petersen, Solof and Harderup, Lars-Erik},
  booktitle    = {[Host publication title missing]},
  editor       = {Karney, Richard and Desjarlais, Andre},
  isbn         = {978-1-936504-61-9},
  keyword      = {Wood frame walls,Blind validation},
  language     = {eng},
  pages        = {12},
  title        = {Validation of a 1D transient heat and moisture calculation tool under real conditions},
  year         = {2013},
}