Modeling a Naturally Ventilated Double Skin Façade with a Building Thermal Simulation Program

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Abstract

The use of Double Skin Façade (DSF) has increased during the last decade. There are many reasons for this including e.g. aesthetics, sound insulation, improved indoor environment and energy savings. However, the influence on the indoor environment and energy consumption are very difficult to predict. This is manly due to the very transient and complex air flow in the naturally ventilated double skin façade cavity.

In this paper the modelling of the DSF using a thermal simulation program, BSim, is discussed. The simulations are based on the measured weather boundary conditions, and the simulation results are compared to the measurement results like energy consumption for cooling, air temperature, temperature gradient and mass flow rate in the DSF cavity, etc.

Details about the measurements are reported in \Kalyanova et al. 2008\. The thermal simulation program does not at the moment include a special model to simulate the DSF. However, the results show that it was possible to predict the energy flow, temperature distribution and airflow in the DSF. The good agreement between the measured and simulated results was unfortunately very sensitive to the model. This implies that without the possibility to calibrate the simulation model with measured data the risk of generating poor results is imminent. Therefore further work including both measurements and more detailed and robust simulation programs are necessary

Original languageEnglish
Title of host publicationProceedings of the 8th Symposium on Building Physics in the Nordic Countries : Nordic Symposium on Building Physics 2008, NSB2008
EditorsCarsten Rode
Volume1
PublisherTechnical University of Denmark (DTU)
Publication date2008
Pages143-150
ISBN (Print)9788778772657
Publication statusPublished - 2008
EventNSB2008, 8th Symposium on Building Physics in the Nordic Countries : Symposium on Building Physics in the Nordic Countries - Copenhagen, Denmark
Duration: 16 Jun 200818 Jun 2008
Conference number: 8

Conference

ConferenceNSB2008, 8th Symposium on Building Physics in the Nordic Countries : Symposium on Building Physics in the Nordic Countries
Number8
CountryDenmark
CityCopenhagen
Period16/06/200818/06/2008
SeriesBYGDTU Report
NumberR-189
ISSN1601-2917

Fingerprint

Skin
Energy utilization
Sound insulation
Air
Thermal gradients
Hot Temperature
Energy conservation
Temperature distribution
Flow rate
Boundary conditions
Cooling
Temperature

Bibliographical note

Also published on a CD. See www.nsb2008.org

Keywords

  • Double Skin Façade
  • Natural ventilation
  • Building simulation
  • Validation

Cite this

Jensen, R. L., Kalyanova, O., & Heiselberg, P. (2008). Modeling a Naturally Ventilated Double Skin Façade with a Building Thermal Simulation Program. In C. Rode (Ed.), Proceedings of the 8th Symposium on Building Physics in the Nordic Countries: Nordic Symposium on Building Physics 2008, NSB2008 (Vol. 1, pp. 143-150). Technical University of Denmark (DTU). BYGDTU Report, No. R-189
Jensen, Rasmus Lund ; Kalyanova, Olena ; Heiselberg, Per. / Modeling a Naturally Ventilated Double Skin Façade with a Building Thermal Simulation Program. Proceedings of the 8th Symposium on Building Physics in the Nordic Countries: Nordic Symposium on Building Physics 2008, NSB2008. editor / Carsten Rode. Vol. 1 Technical University of Denmark (DTU), 2008. pp. 143-150 (BYGDTU Report; No. R-189).
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title = "Modeling a Naturally Ventilated Double Skin Fa{\cc}ade with a Building Thermal Simulation Program",
abstract = "The use of Double Skin Fa{\cc}ade (DSF) has increased during the last decade. There are many reasons for this including e.g. aesthetics, sound insulation, improved indoor environment and energy savings. However, the influence on the indoor environment and energy consumption are very difficult to predict. This is manly due to the very transient and complex air flow in the naturally ventilated double skin fa{\cc}ade cavity.In this paper the modelling of the DSF using a thermal simulation program, BSim, is discussed. The simulations are based on the measured weather boundary conditions, and the simulation results are compared to the measurement results like energy consumption for cooling, air temperature, temperature gradient and mass flow rate in the DSF cavity, etc.Details about the measurements are reported in \Kalyanova et al. 2008\. The thermal simulation program does not at the moment include a special model to simulate the DSF. However, the results show that it was possible to predict the energy flow, temperature distribution and airflow in the DSF. The good agreement between the measured and simulated results was unfortunately very sensitive to the model. This implies that without the possibility to calibrate the simulation model with measured data the risk of generating poor results is imminent. Therefore further work including both measurements and more detailed and robust simulation programs are necessary",
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Jensen, RL, Kalyanova, O & Heiselberg, P 2008, Modeling a Naturally Ventilated Double Skin Façade with a Building Thermal Simulation Program. in C Rode (ed.), Proceedings of the 8th Symposium on Building Physics in the Nordic Countries: Nordic Symposium on Building Physics 2008, NSB2008. vol. 1, Technical University of Denmark (DTU), BYGDTU Report, no. R-189, pp. 143-150, NSB2008, 8th Symposium on Building Physics in the Nordic Countries : Symposium on Building Physics in the Nordic Countries, Copenhagen, Denmark, 16/06/2008.

Modeling a Naturally Ventilated Double Skin Façade with a Building Thermal Simulation Program. / Jensen, Rasmus Lund; Kalyanova, Olena; Heiselberg, Per.

Proceedings of the 8th Symposium on Building Physics in the Nordic Countries: Nordic Symposium on Building Physics 2008, NSB2008. ed. / Carsten Rode. Vol. 1 Technical University of Denmark (DTU), 2008. p. 143-150 (BYGDTU Report; No. R-189).

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

TY - GEN

T1 - Modeling a Naturally Ventilated Double Skin Façade with a Building Thermal Simulation Program

AU - Jensen, Rasmus Lund

AU - Kalyanova, Olena

AU - Heiselberg, Per

N1 - Also published on a CD. See www.nsb2008.org

PY - 2008

Y1 - 2008

N2 - The use of Double Skin Façade (DSF) has increased during the last decade. There are many reasons for this including e.g. aesthetics, sound insulation, improved indoor environment and energy savings. However, the influence on the indoor environment and energy consumption are very difficult to predict. This is manly due to the very transient and complex air flow in the naturally ventilated double skin façade cavity.In this paper the modelling of the DSF using a thermal simulation program, BSim, is discussed. The simulations are based on the measured weather boundary conditions, and the simulation results are compared to the measurement results like energy consumption for cooling, air temperature, temperature gradient and mass flow rate in the DSF cavity, etc.Details about the measurements are reported in \Kalyanova et al. 2008\. The thermal simulation program does not at the moment include a special model to simulate the DSF. However, the results show that it was possible to predict the energy flow, temperature distribution and airflow in the DSF. The good agreement between the measured and simulated results was unfortunately very sensitive to the model. This implies that without the possibility to calibrate the simulation model with measured data the risk of generating poor results is imminent. Therefore further work including both measurements and more detailed and robust simulation programs are necessary

AB - The use of Double Skin Façade (DSF) has increased during the last decade. There are many reasons for this including e.g. aesthetics, sound insulation, improved indoor environment and energy savings. However, the influence on the indoor environment and energy consumption are very difficult to predict. This is manly due to the very transient and complex air flow in the naturally ventilated double skin façade cavity.In this paper the modelling of the DSF using a thermal simulation program, BSim, is discussed. The simulations are based on the measured weather boundary conditions, and the simulation results are compared to the measurement results like energy consumption for cooling, air temperature, temperature gradient and mass flow rate in the DSF cavity, etc.Details about the measurements are reported in \Kalyanova et al. 2008\. The thermal simulation program does not at the moment include a special model to simulate the DSF. However, the results show that it was possible to predict the energy flow, temperature distribution and airflow in the DSF. The good agreement between the measured and simulated results was unfortunately very sensitive to the model. This implies that without the possibility to calibrate the simulation model with measured data the risk of generating poor results is imminent. Therefore further work including both measurements and more detailed and robust simulation programs are necessary

KW - Double Skin Façade

KW - Natural ventilation

KW - Building simulation

KW - Validation

M3 - Article in proceeding

SN - 9788778772657

VL - 1

T3 - BYGDTU Report

SP - 143

EP - 150

BT - Proceedings of the 8th Symposium on Building Physics in the Nordic Countries

A2 - Rode, Carsten

PB - Technical University of Denmark (DTU)

ER -

Jensen RL, Kalyanova O, Heiselberg P. Modeling a Naturally Ventilated Double Skin Façade with a Building Thermal Simulation Program. In Rode C, editor, Proceedings of the 8th Symposium on Building Physics in the Nordic Countries: Nordic Symposium on Building Physics 2008, NSB2008. Vol. 1. Technical University of Denmark (DTU). 2008. p. 143-150. (BYGDTU Report; No. R-189).