Modelling of the thermal behavior of walls and floors In contact with the ground.
Number: pap. 3560
Author(s) : PERNIGOTTO G., PRADA A., BARATIERI M., et al.
Summary
One of the most complex configuration to model in detail, both in the dynamic simulation of buildings and in the analytical quasi steady-state calculations, is the thermal dispersion through the walls and the floor in contact with the ground. The problem consists in determining the boundary conditions of the external wall surface directly exposed to the soil, whose temperature cannot be considered undisturbed. Different studies, both experimental and numerical, have been carried out in the last decades in order to determine the ground boundary conditions, some of which have been used to elaborate the technical standard EN ISO 13370. This standard gives some indications about the conditions to be considered in the use of quasi steady-state methods and within the dynamic simulation. The evaluation of the simulation software in the specific context of the ground heat transmission, has also driven the IEA to define a specific series of validation cases, the BESTEST In-depth ground coupled heat transfer tests. This research' aim is to test implement reliable calculation procedures for the thermal dispersion through the building envelope towards the ground, in dynamic simulation modelling systems. In this work, a test case of the EN ISO 13370 standard has been modelled with FEM codes, both in steady-state conditions and also in periodic external conditions. Different types of floor have been considered, with different thickness and position of the insulation layer. The results have been compared with those calculated following the prescriptions of the standard EN ISO 13370.
Available documents
Format PDF
Pages: 10 p.
Available
Public price
20 €
Member price*
15 €
* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).
Details
- Original title: Modelling of the thermal behavior of walls and floors In contact with the ground.
- Record ID : 30006894
- Languages: English
- Source: 2012 Purdue Conferences. 2nd International High Performance Buildings Conference at Purdue.
- Publication date: 2012/07/16
Links
See other articles from the proceedings (42)
See the conference proceedings
Indexing
-
Themes:
Comfort air conditioning;
Insulants - Keywords: Standardization; Floor; Roof; Building; Ground; Wall; Europe; Thickness; Insulation
-
Determination of optimum insulation thickness o...
- Author(s) : KAYFECI M., KECEBAS A., GEDIK E.
- Date : 2013/01
- Languages : English
- Source: Applied Thermal Engineering - vol. 50 - n. 1
View record
-
Il condizionamento dell'aria nel sud dell'Europ...
- Author(s) : MAMMI S.
- Date : 2001/05
- Languages : Italian
- Source: Cond. Aria - n. 5
View record
-
A Review of Thermally Activated Building System...
- Author(s) : VILLAR-RAMOS M. M., HERNÁNDEZ-PÉREZ I., AGUILAR-CASTRO K. M., ZAVALA-GUILLEN I., MACIAS-MELO E. V., HERNÁNDEZ-LÓPEZ I., SERRANO-ARELLANO J.
- Date : 2022/09
- Languages : English
- Source: Energies - vol. 15 - n. 17
- Formats : PDF
View record
-
AN APPROACH TO ESTABLISHING THE MOST ECONOMICAL...
- Author(s) : HESSE W.
- Date : 1982/03
- Languages : English
- Source: ASHRAE Journal - vol. 24 - n. 3
View record
-
Effect of the thermal insulation layer location...
- Author(s) : ZHANG L., LUO T., MENG X., et al.
- Date : 2017/09
- Languages : English
- Source: Case Studies in Thermal Engineering - vol. 10
- Formats : PDF
View record