Resumé

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

OriginalsprogEngelsk
TidsskriftNordic Journal of Building Physics: Acta Physica Aedificiorum
Vol/bind4
ISSN1402-5728
StatusUdgivet - 2008

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

Citer dette

@article{32e58fa0eecb11ddb0a4000ea68e967b,
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",
keywords = "Double skin fa{\cc}ade, Natural ventilation, Building simulation, Validation",
author = "Jensen, {Rasmus Lund} and Olena Kalyanova and Per Heiselberg",
year = "2008",
language = "English",
volume = "4",
journal = "Nordic Journal of Building Physics",
issn = "1402-5728",
publisher = "Kungliga Tekniska Hoegskolan Institutionen foer Byggvetenskap",

}

TY - JOUR

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

AU - Jensen, Rasmus Lund

AU - Kalyanova, Olena

AU - Heiselberg, Per

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 - Journal article

VL - 4

JO - Nordic Journal of Building Physics

JF - Nordic Journal of Building Physics

SN - 1402-5728

ER -