Energy modelling and saving potential of polymeric solar-responsive thermochromic window films

Khaled, Khaled; Berardi, Umberto

doi:10.1016/j.solener.2022.08.008

Cited by 20 publications

(3 citation statements)

References 40 publications

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“…Moreover, previous studies [34][35][36] have compared different components of building envelopes, including opaque envelopes (ceilings, floors, walls) and transparent envelopes (windows), and found that windows are the most influential factor affecting indoor thermal comfort [37,38]. As windows typically have different thermal properties compared to other building envelope components, this study focused on analyzing the impact of window-wall ratio, SHGC value, and U-value on building energy consumption.…”

Section: Methodsmentioning

confidence: 99%

Multi-objective optimization designs of phase change material-enhanced building using the integration of the Stacking model and NSGA-III algorithm

Yang

Yuan

et al. 2023

Journal of Energy Storage

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Section: Methodsmentioning

confidence: 99%

Multi-objective optimization designs of phase change material-enhanced building using the integration of the Stacking model and NSGA-III algorithm

Yang

Yuan

et al. 2023

Journal of Energy Storage

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“…[12][13][14] It has been shown that chromogenic materials may be useful for energy saving [15][16][17] as well as to enhance visual comfort for occupants. [18][19][20] In the wide field of chromogenic, several research groups have been investigating the features of the so-called multifunctional devices, starting from photoelectrochromic devices and photovoltachromic devices, capable of producing electrical energy by means of photovoltaic conversion and undergoing a smart modulation of transmittance, using such photovoltage as an effective driving force, to activate the cation intercalation in the electrochromic material. [21][22][23] A recent review has discussed the lessons learnt from the last 25 years of experimental activities regarding photoelectrochromic devices.…”

Section: Introductionmentioning

confidence: 99%

Multifunctional hydrogel‐based electrolytes for thermoelectrochromic devices

Cannavale

Pugliese

Matteis

et al. 2023

J of Applied Polymer Sci

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In this work, we presented a new thermoelectrochromic device based on the preparation of a hydrogel‐based electrolyte derived from cellulose, namely hydroxypropyl cellulose, with thermochromic properties and a good ion conduction at atmospheric conditions. With these premises, an electrochromic layer of PEDOT:PSS was developed to fabricate a multifunctional device capable of exploiting the TC properties of HCP when the critical temperature of 43°C is reached, where an increase in reflectance of 37% at 420 nm is reported and, at the same time, capable of undergoing a significant modulation of transmittance (52% at 650 nm) when a small external bias (2.5 V) is applied. To our knowledge, it is the first time that a smart window is designed embodying HPC and PEDOT:PSS in a single device, reporting a fully organic system suitable for several applications, from constructions to transportation.

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“…With the increased frequency and magnitude of climate change-associated heat waves, more attention is paid to improving building energy efficiency [1]. Windows are often considered the weakest components in the building envelope, driven by their low thermal resistance and static transmittance to solar gains, the latter contributing to higher cooling loads [2]. Hence, research on dynamic/smart/adaptive windows has been increasing rapidly in recent years and mainly focussed on electrochromic and thermochromic devices, while photochromic windows have received less attention [3].…”

Section: Introductionmentioning

confidence: 99%

Characterization and energy performance of flexible photochromic window films

Khaled

Berardi

2023

E3S Web of Conf.

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Windows are considered the weakest components in the building envelope, driven by their low thermal resistance and static transmittance to solar gains. Consequently, innovative coatings are often proposed to promote energy saving performance of windows. This article investigates several flexible photochromic window films capable of reversibly modulating solar gains based on the abundance of ultraviolet radiation. The peel-and-stick films are applied to the internal glazing surface, making them suitable for window retrofits without interrupting building occupancy. The optical properties of the photochromic films are experimentally characterized at various solar radiation intensities. The results are then used to numerically evaluate the energy-saving potential of the different films for a representative room in a high-rise office building located in Tokyo’s warm climate. The results of the experimental and numerical investigations are discussed to show the potential of photochromic films for window-retrofit applications.

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Energy modelling and saving potential of polymeric solar-responsive thermochromic window films

Cited by 20 publications

References 40 publications

Multi-objective optimization designs of phase change material-enhanced building using the integration of the Stacking model and NSGA-III algorithm

Multi-objective optimization designs of phase change material-enhanced building using the integration of the Stacking model and NSGA-III algorithm

Multifunctional hydrogel‐based electrolytes for thermoelectrochromic devices

Characterization and energy performance of flexible photochromic window films

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