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Research on Thermal Conditions in Ventilated Large Space Building

Agnieszka PALMOWSKA
Agnieszka PALMOWSKA
 und 
Gabriel MICZKA
Gabriel MICZKA
   | 02. März 2022
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Online veröffentlicht: 02. März 2022
Seitenbereich: 169 - 178
Eingereicht: 24. Mai 2018
Akzeptiert: 08. Okt. 2018
DOI: https://doi.org/10.21307/acee-2018-063
Schlüsselwörter
© 2018 Agnieszka Palmowska et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Figure 1.

The numerical model of the tested facility (isometric view)
The numerical model of the tested facility (isometric view)

Figure 2.

The numerical model of the tested facility with marked details: detail A – diffusers; detail B – exhaust; detail C – technical equipment
The numerical model of the tested facility with marked details: detail A – diffusers; detail B – exhaust; detail C – technical equipment

Figure 3.

Example of a thermogram of a heat source in the tested facility (picture-in-picture)
Example of a thermogram of a heat source in the tested facility (picture-in-picture)

Figure 4.

Model surfaces for which different temperature was set in boundary conditions and marked global XYZ coordinate system
Model surfaces for which different temperature was set in boundary conditions and marked global XYZ coordinate system

Figure 5.

A fragment of the cross-section through the discretization grid
A fragment of the cross-section through the discretization grid

Figure 6.

The comparison of air velocity isosurfaces maps in the tested facility in the horizontal plane ZX, Y = 1.5 m a) case 1 b) case 2
The comparison of air velocity isosurfaces maps in the tested facility in the horizontal plane ZX, Y = 1.5 m a) case 1 b) case 2

Figure 7.

The comparison of air velocity isosurfaces in the tested facility in the horizontal plane ZX, Y = 6.0 m a) case 1 b) case 2
The comparison of air velocity isosurfaces in the tested facility in the horizontal plane ZX, Y = 6.0 m a) case 1 b) case 2

Figure 8.

The comparison of air velocity isosurfaces in the tested facility in the vertical plane XY, Z = 5.0 m a) case 1 b) case 2
The comparison of air velocity isosurfaces in the tested facility in the vertical plane XY, Z = 5.0 m a) case 1 b) case 2

Figure 9.

The comparison of air temperature isosurfaces maps in the tested facility in the horizontal plane ZX, Y = 1.5 m a) case 1 b) case 2
The comparison of air temperature isosurfaces maps in the tested facility in the horizontal plane ZX, Y = 1.5 m a) case 1 b) case 2

Figure 10.

The comparison of air temperature isosurfaces in the tested facility in the horizontal plane ZX, Y = 6.0 m a) case 1 b) case 2
The comparison of air temperature isosurfaces in the tested facility in the horizontal plane ZX, Y = 6.0 m a) case 1 b) case 2

Figure 11.

The comparison of air temperature isosurfaces in the tested facility in the vertical plane XY, Z = 5.0 m a) case 1 b) case 2
The comparison of air temperature isosurfaces in the tested facility in the vertical plane XY, Z = 5.0 m a) case 1 b) case 2

Figure 12.

The comparison of air temperature isosurfaces in the tested facility in the vertical plane YZ, X = 10.3 m a) case 1 b) case 2
The comparison of air temperature isosurfaces in the tested facility in the vertical plane YZ, X = 10.3 m a) case 1 b) case 2

Figure 13.

The comparison of air temperature isosurfaces in the tested facility in the vertical plane YZ, X = 40.0 m a) case 1 b) case 2
The comparison of air temperature isosurfaces in the tested facility in the vertical plane YZ, X = 40.0 m a) case 1 b) case 2

Boundary conditions for the heat transfer common for case 1, 2

Boundary condition Value/range of values
Heat transfer coefficient of roof 0.6 W/m2 K
Outdoor air temperature 8°C
Surface temperature of technical equipment surfaces 28–90°C
Surface emissivity of technical equipment 0.95
Surface temperature of partitions and gates 26–32°C
Surface temperature of technological elements 35–145°C
Surface emissivity of technological elements 0.95
Lighting power 18 kW
People 1 kW

Boundary conditions for ventilation openings for case 1, 2

Boundary condition Value
Mass flow rate of supply air of SYS 1 (case 1) 9.83 kg/s
Mass flow rate of supply air of SYS 1 (case 2) 5.90 kg/s
Mass flow rate of supply air of SYS 2 (case 1) 9.09 kg/s
Mass flow rate of supply air of SYS 2 (case 2) 5.40 kg/s
Temperature of supply air (SYS 1,2) (case 1, 2) 23.5°C
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Sprache:
Englisch
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