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[138310] Artykuł:

Sustainable Increase in Thermal Resistance of Window Construction: Experimental Verification and CFD Modelling of the Air Cavity Created by a Shutter

Czasopismo: Materials Tom: 18(12),, Zeszyt: 2702, Strony: 1-32
ISSN: 1996-1944
Opublikowano: 2025
Liczba arkuszy wydawniczych: 1.50

Autorzy / Redaktorzy / Twórcy

Imię i nazwisko	Wydział	Katedra	Do oświadczenia nr 3	Grupa przynależności	Dyscyplina naukowa	Procent udziału	Liczba punktów do oceny pracownika	Liczba punktów wg kryteriów ewaluacji
Borys Basok			Nie	spoza "N" jednostki	Inżynieria środowiska, górnictwo i energetyka	14	.00	.00
Volodymyr Novikov			Nie	spoza "N" jednostki	Inżynieria środowiska, górnictwo i energetyka	14	.00	.00
Anatoliy Pavlenko	WiŚGiE	Katedra Fizyki Budowli i Energii Odnawialnej*	Tak	zaliczony do "N"	Inżynieria środowiska, górnictwo i energetyka	14	.00	.00
Hanna Koshlak	WiŚGiE	Katedra Fizyki Budowli i Energii Odnawialnej*	Tak	zaliczony do "N"	Inżynieria środowiska, górnictwo i energetyka	14	.00	.00
Svitlana Goncharuk			Nie	spoza "N" jednostki	Inżynieria środowiska, górnictwo i energetyka	14	.00	.00
Oleksii Shmatok			Nie	spoza "N" jednostki	Inżynieria środowiska, górnictwo i energetyka	14	.00	.00
Dmytro Davydenko			Nie	spoza "N" jednostki	Inżynieria środowiska, górnictwo i energetyka	14	.00	.00

Grupa MNiSW: Publikacja w czasopismach wymienionych w wykazie ministra MNiSzW (część A)
Punkty MNiSW: 0

DOI

Słowa kluczowe:

double-glazed units radiative heat transfer thermal resistance shutters energy efficiency sustainable building envelopes CFD simulation experimental analysis

Keywords:

double-glazed units radiative heat transfer thermal resistance shutters energy efficiency sustainable building envelopes CFD simulation experimental analysis

Streszczenie:

This study investigates, both experimentally and theoretically, the impact of incorporating window shutters on the thermal resistance of double-glazed window units, employing computational fluid dynamics (CFD) modelling. The integration of shutters, whether installed internally or externally, introduces an additional air layer that significantly influences heat transfer between indoor and outdoor environments. This effect on the thermal performance of the transparent structure was analysed through experimental measurements under real operating conditions and numerical simulations involving fluid dynamics and energy equations for the air gaps, alongside heat conduction equations for the solid components. Fourth-kind boundary conditions, considering both radiative and conductive components of the total heat flux emanating from the building’s interior, were applied at the solid–gas interfaces. The simulation results, comparing heat transfer through double-glazed windows with and without shutters, demonstrate a substantial increase in thermal resistance, ranging from 2 to 2.5 times, upon shutter implementation. These findings underscore the effectiveness of employing shutters as a strategy to enhance the energy efficiency of windows and, consequently, the overall energy performance of buildings. This research contributes to the advancement of sustainable materials for engineering applications by providing insights into the optimisation of thermal performance in building envelopes.

Abstract:

This study investigates, both experimentally and theoretically, the impact of incorporating window shutters on the thermal resistance of double-glazed window units, employing computational fluid dynamics (CFD) modelling. The integration of shutters, whether installed internally or externally, introduces an additional air layer that significantly influences heat transfer between indoor and outdoor environments. This effect on the thermal performance of the transparent structure was analysed through experimental measurements under real operating conditions and numerical simulations involving fluid dynamics and energy equations for the air gaps, alongside heat conduction equations for the solid components. Fourth-kind boundary conditions, considering both radiative and conductive components of the total heat flux emanating from the building’s interior, were applied at the solid–gas interfaces. The simulation results, comparing heat transfer through double-glazed windows with and without shutters, demonstrate a substantial increase in thermal resistance, ranging from 2 to 2.5 times, upon shutter implementation. These findings underscore the effectiveness of employing shutters as a strategy to enhance the energy efficiency of windows and, consequently, the overall energy performance of buildings. This research contributes to the advancement of sustainable materials for engineering applications by providing insights into the optimisation of thermal performance in building envelopes.

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