Optical Frequencies Free Electron Scattering Studies On Electrochromic Materials For Variable Reflectivity Windows

Goldner, R. B.; Brofos, A.; Foley, G.; Goldner, E.; Haas, T. E.; Henderson, W.; Norton, P. R.; Ratnam, B.A.; Weis, N.; Wong, K. K.

doi:10.1117/12.944785

Cited by 4 publications

(4 citation statements)

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“…See also e.g. the early studies by Goldner and Rauh (1984), Goldner et al (1985) and Lampert (1984) in this respect. Figure 6 illustrates transmittance modulation by a combined regulation of both the absorbance and the reflectance.…”

Section: Solar Radiation Modulation By Electrochromic Windowsmentioning

confidence: 99%

“…It may be argued that reflectance regulation represents the best ideal way of modulating the solar radiation transmittance in ECWs. This is due to several reasons (Goldner and Rauh 1984, Goldner et al 1985, Goldner et al 1987, Goldner et al 1988, Goldner et al 1989, Goldner et al 1990, Goldner et al 1992, Jelle 1993):…”

Section: Solar Radiation Modulation By Electrochromic Windowsmentioning

confidence: 99%

“…For further details and elaborations on these and related aspects, including more general information about the plasma wavelength and frequency, it is referred to the available literature, e.g. the investigations by Ashrit et al (1992), Beni and Shay (1982), Cogan et al (1986), Deb (2008), Faughnan and Crandall (1980), Goldner and Rauh 1984, Goldner et al (1985, 1989, 1990, Granqvist (1993Granqvist ( , 2007Granqvist ( , 2012, Granqvist (1984a, 1984b), Hecht (1987), Jelle (1993), Lim (1986), Mendelsohn and Goldner (1984), Nagai et al (1986), Schirmer et al (1977), Schuster et al (1986), Svensson and Granqvist (1984a, 1984b and Yamanaka (1987).…”

Section: Solar Radiation Modulation By Electrochromic Windowsmentioning

confidence: 99%

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Solar radiation glazing factors for window panes, glass structures and electrochromic windows in buildings—Measurement and calculation

Jelle

2013

Solar Energy Materials and Solar Cells

163

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Window panes, glass structures and electrochromic windows in buildings may be characterized by a number of solar radiation glazing factors, i.e. ultraviolet solar transmittance, visible solar transmittance, solar transmittance, solar material protection factor, solar skin protection factor, external visible solar reflectance, internal visible solar reflectance, solar reflectance, solar absorbance, emissivity, solar factor and colour rendering factor. Comparison of these solar quantities for different glass fabrications enables one to evaluate and thus select the most appropriate glass material or system for the specific buildings and applications. Measurements and calculations were carried out on various glass materials, including three electrochromic window devices, and several two-layer and three-layer window pane configurations.

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Section: Solar Radiation Modulation By Electrochromic Windowsmentioning

confidence: 99%

Section: Solar Radiation Modulation By Electrochromic Windowsmentioning

confidence: 99%

Section: Solar Radiation Modulation By Electrochromic Windowsmentioning

confidence: 99%

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Solar radiation glazing factors for window panes, glass structures and electrochromic windows in buildings—Measurement and calculation

Jelle

2013

Solar Energy Materials and Solar Cells

163

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“…The emissivity of the inner surfaces of the pores might be controlled by changing the plasma wavelength l p and thus the free electron density. The plasma wavelength may be defined as (Goldner et al, 1985;Jelle 1993c):…”

Section: Dynamic Insulation Materialsmentioning

confidence: 99%

The path to the high performance thermal building insulation materials and solutions of tomorrow

Jelle

Gustavsen

Bætens

2010

Journal of Building Physics

182

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In todays society there is an increased focus on various energy aspects. Buildings constitute a large part of the total energy consumption in the world. In this respect it is important to have the optimum heat balance in buildings. That is, in a cold climate one wants to have as well thermally insulated building envelopes as possible. However, even in cold climates there might often be relatively long periods with overheating in the buildings, e.g. due to solar heat gains and excessive heat loads from miscellaneous indoor activities. In warm climates overheating is most often the case, e.g. in office work spaces with large window glass facades and extensive use of electrical equipment. Insulation retrofit is among the most cost-effective measures, even more cost-effective than e.g. solar photovoltaics. The traditional thermal insulation materials of today have typically thermal conductivities between 33 and 40 mW/(mK). State-of-the-art thermal insulation includes vacuum insulation panels (VIPs) with conductivities from between 3 to 4 mW/(mK) in fresh condition to typically 8 mW/(mK) after 25 years ageing due to water vapour and air diffusion into the VIP core material which has an open pore structure. Puncturing the VIP envelope causes an increase in the thermal conductivity to about 20 mW/(mK).The main emphasis of this work centers around the possibilities of inventing and developing innovative and robust highly thermal insulating materials. That is, within this work the objective is to go beyond VIPs and other current state-of-the-art technologies. New concepts are introduced, i.e. advanced insulation materials (AIMs) as vacuum insulation materials (VIMs), gas insulation materials (GIMs), nano insulation materials (NIMs) and dynamic insulation materials (DIMs). These materials may have closed pore structures (VIMs and GIMs) or either open or closed pore structures (NIMs). The DIMs aim at controlling the material insulation properties, e.g. solid state thermal conductivity, emissivity and pore gas content. Fundamental theoretical studies aimed at developing an understanding of the basics of thermal conductance in solid state matter at an elementary and atomic level have been addressed. The ultimate goal of these studies is to develop tailor-made novel high performance thermal insulation materials and dynamic insulation materials, the latter one enabling to control and regulate the thermal conductivity in the materials themselves, i.e. from highly insulating to highly conducting. Furthermore, requirements of the future high performance thermal insulation materials and solutions have been proposed. At the moment, the NIM solution seems to represent the best high performance low conductivity thermal solution for the foreseeable future. If robust and practical DIMs can be manufactured, they have great potential due to their thermal insulation regulating abilities.

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Electrical and optical properties of WO3 thin films

Regragui

Jousseaume

Addou³

et al. 2001

Thin Solid Films

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Optical Frequencies Free Electron Scattering Studies On Electrochromic Materials For Variable Reflectivity Windows

Cited by 4 publications

References 0 publications

Solar radiation glazing factors for window panes, glass structures and electrochromic windows in buildings—Measurement and calculation

Solar radiation glazing factors for window panes, glass structures and electrochromic windows in buildings—Measurement and calculation

The path to the high performance thermal building insulation materials and solutions of tomorrow

Electrical and optical properties of WO3 thin films

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