Leakproof phase-change glass window: Characteristics and performance

Xu, Zhengkai; Chen, Ying; Lin, Pengcheng; Zhu, Xiongwei

doi:10.1016/j.buildenv.2022.109088

Cited by 9 publications

(2 citation statements)

References 34 publications

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“…[11]. Combining TES equipment with energy supply and conversion systems has proven to be an effective measure to increase thermal or economic efficiency via the load-shifting function [12]. As shown in Figure 1, sensible heat, latent heat and thermochemical storage take three typical TES forms relying on temperature, phase transition, and chemical energy, respectively [13].…”

Section: Literature Reviewmentioning

confidence: 99%

A Novel Molecular PCM Wall with Inorganic Composite: Dynamic Thermal Analysis and Optimization in Charge–Discharge Cycles

Yang,

Xiong,

Mao

et al. 2023

Materials

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The combination of electric heating and thermal energy storage (TES) with phase change material (PCM) can achieve load shifting for air conditioning energy saving in building sectors. Their non-flammability, relatively good mechanical properties, and low cost make inorganic PCMs attractive in construction engineering. However, PCMs often show poor thermal conductivity, low heat transfer efficiency, leakage risk, etc., in applications. Moreover, the practical thermal performance of PCM–TES sometimes fails to meet demand variations during charge and discharge cycles. Therefore, in this study, a novel integrated electric PCM wall panel module is proposed with quick dynamic thermal response in space heating suitable for both retrofitting of existing buildings and new construction. Sodium–urea PCM composites are chosen as PCM wall components for energy storage. Based on the enthalpy–porosity method, a mathematical heat transfer model is established, and numerical simulation studies on the charge–discharge characteristics of the module are conducted using ANSYS software. Preliminary results show that the melting temperature decreases from 50 °C to approximately 30 °C with a 30% urea mixing ratio, approaching the desired indoor thermal comfort zone for space heating. With declining PCM layer thickness, the melting time drops, and released heat capacity rises during the charge process. For a 20 mm thick PCM layer, 150 W/m2 can maintain the average surface temperature within a comfort range for 12.1 h, about half the time of a 24 h charge–discharge cycling periodicity. Furthermore, placing the heating film in the unit center is preferable for improving overall heat efficiency and shortening the time to reach the thermal comfort temperature range. This work can provide guidance for practical thermal design optimization of building envelopes integrated with PCM for thermal insulation and energy storage.

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Section: Literature Reviewmentioning

confidence: 99%

A Novel Molecular PCM Wall with Inorganic Composite: Dynamic Thermal Analysis and Optimization in Charge–Discharge Cycles

Yang,

Xiong,

Mao

et al. 2023

Materials

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“…reviewed the different concepts related to PCMs and details of the different types of PCMs according to climate Xu et al (2022). prepared a phasechange gel with relatively high melting enthalpy, better leak proof characteristics, better thermal insulation, besides increasing time lag and lowering peak temperature Arasteh et al (2023).…”

mentioning

confidence: 99%

Contribution of advanced windows and façades to buildings decarbonization: A comprehensive review

Ismail,

Lino,

Henríquez

et al. 2024

EUR J SUSTAIN DEV RES

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On a global level the building sector consumes about 45.00% of energy consumption, contributes about 40.00% to emission, uses 30.00% of water and impacts the environment by generating 30.00% of waste. Although windows are important components of a building that provide natural lighting and ventilation and establish necessary contact with the external environment necessary for healthy indoor ambient, they permit entry of undesirable solar heat in summer and allow escaping heat from the indoor ambient in cold seasons, which aggravate the building needs for energy and increase its contribution to atmospheric emissions. The present investigation provides a review on research, development, and applications of advanced windows in the building sector. The introduction highlights the importance and contribution of advanced glazing technology to improving energy, comfort, and thermal performance of buildings. The review includes natural illumination and ventilation, thermal comfort and discusses the effects of window to wall ratio on natural illumination and ventilation of windows and façades. The review also covers recent developments in glazed windows and façades including performance enhancements by using reflective solar films, vacuum glazing, windows with filling materials, windows with water flow, window with phase change material, window with stagnant inert gas filling, ventilated windows and façades and windows with aerogel. A special section was also included on smart glazing for windows and façades showing the new tendencies and applications in the building industry. Since commercial programs and open access codes are handy tools for simulation and performance calculations a section is dedicated to these codes. The conclusion section contains the most relevant conclusion of the review as well as future trends in research and developments in the area. The topics included in this review can be helpful for experienced and young researchers, practicing engineers and general readers interested in windows and façades.

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Highly-efficient thermal management of electronic devices enabled by boron nitride-incorporated phase change material gels

et al. 2022

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Leakproof phase-change glass window: Characteristics and performance

Cited by 9 publications

References 34 publications

A Novel Molecular PCM Wall with Inorganic Composite: Dynamic Thermal Analysis and Optimization in Charge–Discharge Cycles

A Novel Molecular PCM Wall with Inorganic Composite: Dynamic Thermal Analysis and Optimization in Charge–Discharge Cycles

Contribution of advanced windows and façades to buildings decarbonization: A comprehensive review

Highly-efficient thermal management of electronic devices enabled by boron nitride-incorporated phase change material gels

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