Performance requirements for electrochromic smart window

Piccolo, Antonio; Simone, F.

doi:10.1016/j.jobe.2015.07.002

Cited by 117 publications

(78 citation statements)

References 31 publications

(64 reference statements)

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“…By applying a small potential difference between the electrodes (<5 V DC), the cations from the ion storage layer (e.g., also an electrochromic material such as NiOH:Li) are transported through the ion conducting thin film. As a function of the type of cation used, the ion conducting film can be for example Ta oxide for H + transport or polymeric electrolytes such as PEO‐PEGMA:Li for Li + . Cations are injected in the WO 3 active layer and coloration occurs via combination with the electrons supplied by the external circuit (Reaction 4).…”

Section: Applicationsmentioning

confidence: 99%

“…As a function of the type of cation used, the ion conducting film can be for example Ta oxide for H þ transport or polymeric electrolytes such as PEO-PEGMA:Li for Li þ . [87] Cations are injected in the WO 3 active layer and coloration occurs via combination with the electrons supplied by the external circuit (Reaction 4). Simultaneously, the same process takes place at the ion storage layer where coloration occurs as well, but it occurs when the ions leave the material.…”

Section: Electrochromism and Photochromismmentioning

confidence: 99%

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Review on the Versatility of Tungsten Oxide Coatings

Mardare

Hassel

2019

Physica Status Solidi (a)

105

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Tungsten oxide is a versatile material with many advantages such as large availability and low fabrications costs. Additionally, it is suitable to be produced in the form of thin films or coatings, which makes it very attractive for many applications. In this Feature Article, the material properties such as crystallography, chemical stability, and semiconducting properties are presented, followed by examples of coating technologies. Furthermore, the relation between its structure and some of the very important applications fields such as electro‐ and photochromism, as well as pH sensing are analyzed in detail. Its auspicious semiconducting properties make it attractive to be used as photo(electro)catalyst, therefore applications of thin films based on WO3 are emphasized such as photoanodes for water splitting, in healthcare as antimicrobial material and for degradation of pollutants or for CO2 reduction. The article is concluded by a short overview of the current status of research employing tungsten oxide.

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Section: Applicationsmentioning

confidence: 99%

Section: Electrochromism and Photochromismmentioning

confidence: 99%

Review on the Versatility of Tungsten Oxide Coatings

Mardare

Hassel

2019

Physica Status Solidi (a)

105

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“…• Develop faster switching speeds (<5, 6 min) in order to promote better savings in energy and occupants' visual comfort [161].…”

mentioning

confidence: 99%

“…• Develop higher visible transmittances in the bleached state (τV > 0.6) to allow more daylight [161].…”

mentioning

confidence: 99%

Building Applications, Opportunities and Challenges of Active Shading Systems: A State-of-the-Art Review

Dakheel

Aoul

2017

Energies

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Active shading systems in buildings have emerged as a high performing shading solution that selectively and optimally controls daylight and heat gains. Active shading systems are increasingly used in buildings, due to their ability to mainly improve the building environment, reduce energy consumption and in some cases generate energy. They may be categorized into three classes: smart glazing, kinetic shading and integrated renewable energy shading. This paper reviews the current status of the different types in terms of design principle and working mechanism of the systems, performance, control strategies and building applications. Challenges, limitations and future opportunities of the systems are then discussed. The review highlights that despite its high initial cost, the electrochromic (EC) glazing is the most applied smart glazing due to the extensive use of glass in buildings under all climatic conditions. In terms of external shadings, the rotating shading type is the predominantly used one in buildings due to its low initial cost. Algae façades and folding shading systems are still emerging types, with high initial and maintenance costs and requiring specialist installers. The algae façade systems and PV integrated shading systems are a promising solution due to their dual benefits of providing shading and generating electricity. Active shading systems were found to save 12 to 50% of the building cooling electricity consumption.

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“…More than 30 % of the total global final energy consumption is in the building sector (Piccolo and Simone, 2015). Advanced insulation technologies and retrofitting measures have already minimized the building energy consumption but yet require more energy-efficient technologies that bring the building sector towards zerocarbon sustainable buildings (Memon and Eames, 2017).…”

Section: Introductionmentioning

confidence: 99%

Design, Development and Thermal Performance Analysis of Ultra-Low Heat Loss Triple Vacuum Glazing

Memon¹

2017

Proceedings of SWC2017/SHC2017

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Heat loss through windows of buildings is one of the significant causes of high-energy consumption that require intervention to advance their thermal performance in a move towards net-zero energy buildings. Highperformance triple vacuum glazing features ultra-low heat loss that maintains the transparency, regardless of tiny pillar spots, and slimness due to its narrow evacuated cavities. This study reports the design and development of high-vacuum system with the modified vacuum cup which provides an effective pump-out hole sealing and has an achievable vacuum pressure of 4.02x10 -5 Pa. A new dual-edge seal (low temperature melt 186˚C) consists of Cerasolzer CS186 alloy as a main and J-B Weld epoxy steel adhesive as a support seal is developed and the triple vacuum glazing (area of 300 x 300mm) samples are fabricated, in which the vacuum pressure of 4.8x10 -2 Pa is achieved. A 3D FEM of the fabricated triple vacuum glazed is developed and the centre-of-pane and overall U-value of 0.33Wm -2 K -1 and 1.05 Wm , respectively, are predicted.

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Performance requirements for electrochromic smart window

Cited by 117 publications

References 31 publications

Review on the Versatility of Tungsten Oxide Coatings

Review on the Versatility of Tungsten Oxide Coatings

Building Applications, Opportunities and Challenges of Active Shading Systems: A State-of-the-Art Review

Design, Development and Thermal Performance Analysis of Ultra-Low Heat Loss Triple Vacuum Glazing

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