What question did this study set out to answer?

To investigate the seasonal interaction between window opening area, solar heat gain, and the cooling effect of ventilation across double- and triple-glazed window systems in high-rise residential bedrooms.

March 6, 2025Scientific ReportsOpen Access

Seasonal thermal performance of double and triple glazed windows with effects of window opening area

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Authors

YCYou ChenSun Yat-sen University DLDongdong LiHefei University of Technology DHDanqiu He

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Implication

Observational field study reveals seasonal thermal trade-offs between glazing types and window opening areas in high-rise bedrooms, indicating dynamic window operation optimizes energy efficiency.

Key Points

To investigate the seasonal interaction between window opening area, solar heat gain, and the cooling effect of ventilation across double- and triple-glazed window systems in high-rise residential bedrooms.
Conducted field measurements across seven high-rise bedrooms in Dongguan, China, during both winter and summer seasons.
Monitored solar radiation, indoor temperatures, and airflow using pyranometers and anemometers across varying window opening areas ranging from 0.32 m² to 1.3 m².
Evaluated thermal performance across double- and triple-glazed configurations using net thermal effect calculations and regression analysis.
In winter, smaller window opening areas (0.32 m²) maximized net heat gain, with triple glazing achieving solar heat gains of 281–387 W and a net thermal effect up to +204 W, whereas larger openings diminished warmth.
In summer, ventilation cooling dominated; fully open double-glazed windows (1.3 m²) yielded a cooling effect of ventilation of 1327 W and negative net thermal effects of −41 to −60 W, outperforming triple glazing which peaked at 1179 W.
Regression analysis established a strong positive correlation between window opening area, solar heat gain, and ventilation cooling, with double-glazed assemblies displaying higher sensitivity to opening area adjustments.

Cite This Study

Chen et al. (2025) studied this question.

synapsesocial.com/papers/6a6fdca4b27f158178271b8e https://doi.org/10.1038/s41598-025-92600-w

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Implication

Observational field study reveals seasonal thermal trade-offs between glazing types and window opening areas in high-rise bedrooms, indicating dynamic window operation optimizes energy efficiency.

Seasonal thermal performance of double and triple glazed windows with effects of window opening area

Discussion

Member takes

Implication

Key Points

Cite This Study

Seasonal thermal performance of double and triple glazed windows with effects of window opening area

Discussion

Member takes

Implication

Key Points

Cite This Study

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