Design of ceramic tiles with high solar reflectance through the development of a functional engobe

Ferrari, Chiara; Libbra, Antonio; Muscio, Alberto; Siligardi, Cristina

doi:10.1016/j.ceramint.2013.05.077

Cited by 55 publications

(27 citation statements)

References 16 publications

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“…This structure can be easily compared with a traditional tile structure characterized by ceramic substrate, engobe and glaze. Before glaze application, on the white support was applied 200 mm of a solar reflective engobe made by 30 wt% Na feldspar, 25 wt% alumina, 15 wt % quartz, 10 wt% kaolin, 10 wt% ZrSiO 4 , 10 wt% clay, 0.2 wt % sodium tripolyphosphate and 0.2 wt% Carboxymethyl cellulose [19]. The glazes applied onto engobed tiles are characterized by 200 mm and 400 mm thickness to also analyze the influence of thickness on the solar performances of these samples.…”

Section: Sample Preparationmentioning

confidence: 99%

“…A previous study regards the development of solar reflective clay roof tiles [20], while in 2013 Ferrari et al [19] developed a new solar reflective engobe, which reaches 0.90 of solar reflectance through the application of a 200 μm layer of a zirconium silicate engobe on a stoneware ceramic tile. In 2007, Levinson et al [14] established an effective structure to create a nonwhite solar reflective surface suggesting two models.…”

Section: Introductionmentioning

confidence: 99%

“…Among these, the three-layer model, made by a substrate, a solar reflective basecoat and a spectrally selective topcoat, is strongly comparable to the traditional structure of a glazed ceramic tile. This study is, then, aimed to create a ceramic-based solar reflective nonwhite surface considering a s tile, as a substrate, the engobe as a solar reflective basecoat formulated in [19] and, as topcoat, ceramic glazes with different finishing and different colors.…”

Section: Introductionmentioning

confidence: 99%

“…Among all solar reflective materials, ceramic based ones represent an interesting solution thanks to their durability against ageing and weathering, their naturally high thermal emissivity (ε=0.90) and their peculiar behavior in the near infra-red fraction of the solar spectrum [17][18][19]. A previous study regards the development of solar reflective clay roof tiles [20], while in 2013 Ferrari et al [19] developed a new solar reflective engobe, which reaches 0.90 of solar reflectance through the application of a 200 μm layer of a zirconium silicate engobe on a stoneware ceramic tile.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Design of a cool color glaze for solar reflective tile application

Ferrari

Muscio

Siligardi

et al. 2015

Ceramics International

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Section: Sample Preparationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Design of a cool color glaze for solar reflective tile application

Ferrari

Muscio

Siligardi

et al. 2015

Ceramics International

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“…Researchers report coatings with pigments yielding different colors while still exhibiting NIR-reflectance in the 70-90% range. [19][20][21][22][23][24] The substrates are generally clay and the coatings are applied through engobing.…”

Section: Methods and Literaturementioning

confidence: 99%

A review of materials for spectral design coatings in signature management applications

Andersson

Åkerlind

2014

SPIE Proceedings

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The current focus in Swedish policy towards national security and high-end technical systems, together with a rapid development in multispectral sensor technology, adds to the utility of developing advanced materials for spectral design in signature management applications. A literature study was performed probing research databases for advancements. Qualitative text analysis was performed using a six-indicator instrument: spectrally selective reflectance; low gloss; low degree of polarization; low infrared emissivity; non-destructive properties in radar and in general controllability of optical properties. Trends are identified and the most interesting materials and coating designs are presented with relevant performance metrics. They are sorted into categories in the order of increasing complexity: pigments and paints, one-dimensional structures, multidimensional structures (including photonic crystals), and lastly biomimic and metamaterials. The military utility of the coatings is assessed qualitatively. The need for developing a framework for assessing the military utility of incrementally increasing the performance of spectrally selective coatings is identified.

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Modeling Impacts of Urbanization and Urban Heat Island Mitigation on Boundary Layer Meteorology and Air Quality in Beijing Under Different Weather Conditions

et al. 2018

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Beijing has experienced a rapid urbanization in the last few decades and has been suffering from serious air pollution during recent years. The Weather Research and Forecasting‐Chem model is used to quantify the effects of urbanization on regional climate and air quality and those of urban heat island (UHI) mitigation strategy on urban air quality in Beijing, with a special focus on the impacts under different weather conditions (heat waves in summer and polluted days in winter). The modification of rural land use into urban impervious surface significantly increases 2‐m temperature (T2) and planetary boundary layer height but decreases 2‐m relative humidity (RH2) and 10‐m wind speed (WS10) in urban Beijing, which further leads to the increases in surface‐layer O3 concentrations of 9.5 ppbv in summer and 1.8 ppbv in winter and the decreases in PM2.5 concentrations of 16.6 μg m−3 in summer and 26.2 μg m−3 in winter. Compared with normal days (clean days), the UHI intensity is enhanced by 11.1% during heat waves in summer (by 16.7% during polluted days in winter). Although increasing urban albedo is an effective mitigation strategy to decrease UHI intensity, it worsens the urban air quality. When the urban albedo increases from 0.2 to 0.85, the daily average PM2.5 concentrations are increased by 10.2 (6.1) μg m−3 in summer (in winter), and the daily maximum O3 concentrations are increased by 12.8 ppbv under heat waves in summer.

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Design of ceramic tiles with high solar reflectance through the development of a functional engobe

Cited by 55 publications

References 16 publications

Design of a cool color glaze for solar reflective tile application

Design of a cool color glaze for solar reflective tile application

A review of materials for spectral design coatings in signature management applications

Modeling Impacts of Urbanization and Urban Heat Island Mitigation on Boundary Layer Meteorology and Air Quality in Beijing Under Different Weather Conditions

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