Effect of window orientation on the thermal performance of electrochromic glass

Case Studies in Thermal Engineering, Год журнала: 2025, Номер 69, С. 105990 - 105990

Опубликована: Март 3, 2025

Язык: Английский

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Spectral analysis of the discoloration process in architectural electrochromic glass

Scientific Reports, Год журнала: 2025, Номер 15(1)

Опубликована: Фев. 28, 2025

Electrochromic glass has been widely employed in buildings, due to its favorable thermal performance, optical properties and adjustability, more attention was paid final states of bleached tinted on the building performance. However, because contradiction between visual environment, there must be their suitable balance, which certain state tinted, not states. To find this thereby, improve application efficacy electrochromic glass, a detail transient spectral analysis done during whole coloring fading processes. Under condition, an experiment platform designed test transmittance, reflectance absorbance under wavelength from 380 nm 2500 nm.The experimental results showed visible light regulation is mainly focused warm spectrum 500 700 nm. In near-infrared region, concentrated 780–1400 range, with relatively minimal adjustment observed for other wavelengths light. For range global reflectivity absorptivity are 0.3–45.4%, 3.6–5.8% 49.5–95.3% lights 780 nm, while they 2.6–31.9%, 3.46–5.18% 63.2–93.3% near infrared The transmittance primarily altered through absorbance. This provides corresponding curves as well fitted change related direction discoloration, but only glass. article data that may used support search light-heat balance architectural applications.

Язык: Английский

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Formation analysis of cooling load from envelopes under air-conditioning intermittent operation

Solar Energy, Год журнала: 2025, Номер 292, С. 113428 - 113428

Опубликована: Март 15, 2025

Язык: Английский

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Optimizing the axis ratio of elliptical PCM encasement for enhanced thermal performance in radiant floor heating systems

Scientific Reports, Год журнала: 2025, Номер 15(1)

Опубликована: Март 16, 2025

With the rapid development of low-carbon buildings and energy-saving technologies, phase change materials (PCM) have been extensively applied in building floor heating systems due to their excellent thermal energy storage temperature control characteristics. However, traditional encased PCM radiant (RFHS) exhibit drawbacks including slow response, low efficiency, excessive structural layer thickness. This study proposes an innovative solution through CFD numerical simulation: replacing conventional circular encasement with elliptical optimizing axis ratio enhance system's performance reduce mortar thickness, thereby lowering construction costs. The analyzes state PCMs, variations structure, heat flux distribution. results show that as short (a) length decreases, floor's response becomes faster. When a = 1.5 times radius hot water pipe, achieves optimal balance between comfort efficiency. Compared design, this approach not only enhances speed reduces consumption but also decreases thickness by 16.7%. provides theoretical basis for RFHS integrated PCMs holds significant potential engineering applications.

Язык: Английский

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Climate adaptation analysis of the thermal performance of dynamic rotating latent-energy-storage envelope (DRLESE) in China

Case Studies in Thermal Engineering, Год журнала: 2025, Номер unknown, С. 106254 - 106254

Опубликована: Май 1, 2025

Язык: Английский

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