Efficiency of ventilated facades in terms of airflow in the air gap Cover

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Efficiency of ventilated facades in terms of airflow in the air gap

Studia Geotechnica et Mechanica

Volume 43 (2021): Issue 3 (September 2021)

By: Krzysztof Schabowicz , Łukasz Zawiślak and Paweł Staniów

Open Access

|Sep 2021

Figures & Tables

Share of energy from renewable sources, 2018 [1].

Percentage distribution of energy consumption by sector in 2018 [1].

Types of ventilated facades: a) with open joints; b) with closed joints [6].

Heat transfer in a) ventilated facade; b) ETICS facade.

Facade diagrams for numerical simulations of ventilated facade.

Location of temperature measurement points: a) closed-joint ventilated facade; b) open-joint ventilated facade.

Airflow for individual numerical models: a) closed joint: 2.5 m/s; b) closed joint: 10 m/s; c) open joint: 2.5 m/s; d) open joint: 10 m/s.

Temperature course for individual numerical models: a) closed joint: 2.5 m/s; b) closed joint: 10 m/s; c) open joint: 2.5 m/s; d) open joint: 10 m/s.

Compilation of temperature and air velocity for the ventilated facade with closed joints at Point 10.

Compilation of temperature and air velocity for the ventilated facade with closed joints at Point 11.

Compilation of temperature and airflow velocity for individual measurement points inside the ventilation space for a ventilated facade with closed joints.

Compilation of temperature and air velocity for individual measurement points outside the cladding for a ventilated facade with closed joints.

Location of temperature measurement points: a) closed-joint ventilated facade; b) open-joint ventilated facade.

Temperature overview for the control points of the close-joint facade.

Temperature overview for the control points of the open-joint facade.

Summary of temperatures and air velocities for measurement points_

	Wind speed	Point 10		Point 11		Point 16		Point 17		Point 18		Point 19		Point 20		Point 21

		Temp	Speed	Temp	Speed	Temp	Speed	Temp	Speed	Temp	Speed	Temp	Speed	Temp	Speed	Temp	Speed

		K	m/s	K	m/s	K	m/s	K	m/s	K	m/s	K	m/s	K	m/s	K	m/s
Close joint	0.0	351.8	0.0	352.7	0.0
	2.5	313.8	4.6	315.1	6.0
	5.0	311.5	7.8	311.7	13.9
	10.0	311.4	14.8	311.4	27.8
	15.0	311.3	32.0	311.3	41.7
Open joint	0.0					351.9	0.0	351.8	0.0	351.7	0.0	351.7	0.0	352.7	0.0	352.7	0.0
	2.5					313.4	3.8	316.0	5.2	317.2	5.6	317.2	4.0	314.6	4.5	314.4	7.4
	5.0					312.3	7.8	313.2	11.2	313.0	10.5	312.4	7.4	311.2	11.1	312.0	16.5
	10.0					311.8	15.6	312.5	21.7	312.4	20.2	312.0	14.1	311.1	22.3	311.8	33.1
	15.0					311.7	23.4	312.2	32.2	312.2	29.9	311.8	20.8	311.2	33.2	311.7	49.7

Compilation of temperatures for measurement points inside the room and within the wall_

	Wind speed	Point 1	Point 2	Point 3	Point 4	Point 5	Point 6	Point 7	Point 8	Point 9

		Temp	Temp	Temp	Temp	Temp	Temp	Temp	Temp	Temp

		K	K	K	K	K	K	K	K	K
Close joint	0.0	293.2	305.1	317.1	329.1	335.3	339.8	340.6	341.7	350.6
	2.5	293.2	298.5	304.0	309.5	312.3	314.4	314.8	315.3	316.5
	5.0	293.2	296.7	300.4	304.0	305.9	307.3	307.6	307.9	311.3
	10.0	293.2	296.7	300.3	304.0	305.9	307.3	307.5	307.9	311.3
	15.0	293.2	296.7	300.3	304.0	305.9	307.3	307.5	307.9	311.3
Open joint	0.0	293.2	305.1	317.1	329.2	335.3	339.8	340.7	341.7	350.6
	2.5	293.2	298.3	303.5	308.8	311.6	313.5	313.9	314.4	316.1
	5.0	293.2	296.8	300.4	304.1	306.0	307.4	307.6	308.0	311.4
	10.0	293.2	296.7	300.3	304.0	305.9	307.3	307.5	307.9	311.2
	15.0	293.2	296.7	300.3	304.0	305.9	307.2	307.5	307.9	311.2

DOI: https://doi.org/10.2478/sgem-2021-0014 | Journal eISSN: 2083-831X | Journal ISSN: 0137-6365

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Language: English

Page range: 224 - 236

Submitted on: Apr 14, 2021

Accepted on: May 11, 2021

Published on: Sep 30, 2021

Published by: Wroclaw University of Science and Technology

In partnership with: Paradigm Publishing Services

Publication frequency: 4 issues per year

Keywords:

ventilated facades,

heat transmission,

numerical simulation,

energy efficient facades

Related subjects:

Geosciences, other,

Materials sciences,

Porous materials,

Mechanics and fluid dynamics

© 2021 Krzysztof Schabowicz, Łukasz Zawiślak, Paweł Staniów, published by Wroclaw University of Science and Technology
This work is licensed under the Creative Commons Attribution 4.0 License.

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