Optical performance of single and double glazing units in the wavelength 337–900 nm

Li, Dong; Li, Zaiwu; Zheng, Yumeng; Liu, Changyu; Lu, Libing

doi:10.1016/j.solener.2015.10.028

Cited by 10 publications

(6 citation statements)

References 33 publications

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“…This study of the relative attenuation of the UVB band from 300 nm and the UVA, VIS and NIR bands through the skylight indicates that the highest relative attenuation occurs in the VIS band (range 70-80%) in both seasons and in the NIR band (80%) in winter. Our results are in agreement with those of Tuchinda et al [25], who found that clear glass allows up to 90% of VIS light to pass through, depending on its thickness, and with those of Li et al [26], who found relative attenuations higher than 78% in the VIS region of a quartz glass slab. Additionally, our results also agree with Serrano and Moreno [27], who found relative attenuation values of 85% in the VIS band and 80% in the NIR range for smoked glass.…”

Section: Discussionsupporting

confidence: 93%

“…Li et al [ 26 ] studied the optical performance of glazing units in the UVA, PAR and NIR bands, and they obtained a small transmittance difference spectrum between different thicknesses of single glazing units in the VIS range (380–760 nm), but a large difference in the UV and NIR bands, reducing transmittance as the thickness increased. They also found that transmittance in the VIS region of a quartz glass slab was higher than 78%, due to the absorption band, and between 40% and 80% in the UVA region.…”

Section: Introductionmentioning

confidence: 99%

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Spectral Relative Attenuation of Solar Radiation through a Skylight Focused on Preventive Conservation: Museo De L’almoina in Valencia (Spain) Case Study

Serrano

Zarzo

Esteve

et al. 2021

Sensors

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The aim of the present study was to evaluate the relative attenuation of VIS, UV and NIR solar radiation through a large pond skylight into the interior of the l’Almoina Archaeological Museum (Valencia, Spain), and to determine how relative attenuation varied throughout the year and time of day. Measurements were taken at 9:00 a.m., 12:00 p.m. and 3:00 p.m. during July 2019 and January 2020. Relative attenuation values were obtained from the measurement of spectral irradiance in the exterior and at different points in the interior by means of two Ocean Optics spectrometers: HR4000CG-UV-NIR for VIS (400–700 nm) and NIR (700–1000 nm) bands, and FLAME-S-UV-VIS for UV-A (280–315 nm) and UV-A (315–400 nm) bands. The central points of the skylight had relative attenuation at 520 nm, reaching a value of 50% in summer at noon and 38% in the afternoon. At noon in winter, there were two relative attenuation peaks above 33% at 520 nm and at 900 nm. For mean relative attenuation, in the UVB range, the highest relative attenuation (20%) was inside the ruins in the morning in both summer and winter, and the UVA band relative attenuation was quite constant throughout the museum, but lower than that of the UVB band, in the range 0–3%.

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Section: Discussionsupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Spectral Relative Attenuation of Solar Radiation through a Skylight Focused on Preventive Conservation: Museo De L’almoina in Valencia (Spain) Case Study

Serrano

Zarzo

Esteve

et al. 2021

Sensors

View full text Add to dashboard Cite

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“…For warmer place, high U-value and low g-value are required, while for colder area, low U-value and high g-value are suitable. Generally, single pane glass possesses higher U-value (U-value 3-5 W/m 2 K) and higher g-value followed by double (U-value-2-3 W/m 2 K g-value lower than single glass) and triple (U-value < 2W/m 2 K; g-value lower than single and double) glass window [190][191][192][193]. This clear and highly transparent window is not able to limit the heat entering from exterior ambient of buildings.…”

Section: Perspective and Discussionmentioning

confidence: 99%

Status of BIPV and BAPV System for Less Energy-Hungry Building in India—A Review

et al. 2020

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The photovoltaic (PV) system is one of the most promising technologies that generate benevolent electricity. Therefore, fossil fuel-generated electric power plants, that emit an enormous amount of greenhouse gases, can be replaced by the PV power plant. However, due to its lower efficiency than a traditional power plant, and to generate equal amount of power, a large land area is required for the PV power plant. Also, transmission and distribution losses are intricate issues for PV power plants. Therefore, the inclusion of PV into a building is one of the holistic approaches which reduce the necessity for such large land areas. Building-integrated and building attached/applied are the two types where PV can be included in the building. Building applied/attached PV(BAPV) indicates that the PV system is added/attached or applied to a building, whereas, building integrated PV (BIPV) illustrates the concept of replacing the traditional building envelop, such as window, wall, roof by PV. In India, applying PV on a building is growing due to India’s solar mission target for 2022. In 2015, through Jawaharlal Nehru National Solar Mission, India targeted to achieve 100 GW PV power of which 40 GW will be acquired from roof-integrated PV by 2022. By the end of December 2019, India achieved 33.7 GW total installed PV power. Also, green/zero energy/and sustainable buildings are gaining significance in India due to rapid urbanization. However, BIPV system is rarely used in India which is likely due to a lack of government support and public awareness. This work reviewed the status of BIPV/BAPV system in India. The BIPV window system can probably be the suitable BIPV product for Indian context to reduce the building’s HVAC load.

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“…Buildings consume energy primarily due to heating, cooling and lighting energy demand (Ghosh et al, 2019a;Ghosh and Norton, 2019) . Traditional single or double glazing are not highly thermally insulated which allow the transmission of a high amount of heat and allow external solar heat to indoor (Li et al, 2015). Presently new glazing material has been investigated to improve the heating and cooling loads in buildings (Ghosh et al, 2020(Ghosh et al, , 2018a(Ghosh et al, , 2017Selvaraj et al, 2019).…”

Section: Highlightsmentioning

confidence: 99%

Thermal performance of semitransparent CdTe BIPV window at temperate climate

et al. 2020

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Semi-transparent photovoltaic (PV) technology is attractive for building-integrated photovoltaics (BIPV) due to its ability to lower the admitted solar heat gain, to control the penetrating daylight and to generate onsite benevolent direct current power. In this work, semi-transparent cadmium telluride (CdTe) based BIPV as window was experimentally characterized using outdoor test cell in temperate UK climate. Spectral measurement confirmed its 25% visible transmission and 12% solar transmission. Thermal transmission and solar heat gain coefficient were calculated from measured thermal data. Overall heat transfer coefficient (U-value) of 2.7 W/m 2 K was found for outdoor and indoor characterization of CdTe BIPV window. A comparison with single glazed window has been produced emphasis its feasibility for Facade buildings.

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Optical performance of single and double glazing units in the wavelength 337–900 nm

Cited by 10 publications

References 33 publications

Spectral Relative Attenuation of Solar Radiation through a Skylight Focused on Preventive Conservation: Museo De L’almoina in Valencia (Spain) Case Study

Spectral Relative Attenuation of Solar Radiation through a Skylight Focused on Preventive Conservation: Museo De L’almoina in Valencia (Spain) Case Study

Status of BIPV and BAPV System for Less Energy-Hungry Building in India—A Review

Thermal performance of semitransparent CdTe BIPV window at temperate climate

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