Abstract
This report deals with the experimental and theoretical work concerning application of evacuated monolithic silica aerogel as a transparent insulating material for window panes and covers for solar walls. Models for determination of the heat transfer through the aerogel have been mentioned and the relevant equations given. Because of the nature of the material it will have to be protected in a construction similar to that of an insulating glazing. Four prototypes of up to 1 m x 1 m have been made with 4 different kinds of sealing of the edge, and they have been investigated both theoretically and experimentally with special interest to the cold bridge effect of the sealing of the edge for which the results of an analytical model and measuremnts correspond very well. The cold bridge effect can be important in this context. For the last and biggest prototype a frame was mounted and measurements were made in a guarded hot-box. Furthermore, simulations have been made for a period of 12 months of the aerogel construction both used as a cover for solar walls for an old appartement and a new low-energy house and as windows in an ordinary house. The expected total heat loss
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Citation Formats
Ingerslev Jensen, K.
Windows and solar walls with monolithic solica aerogel; Vinduer og solvaegge med monolitisk silica aerogel.
Denmark: N. p.,
1991.
Web.
Ingerslev Jensen, K.
Windows and solar walls with monolithic solica aerogel; Vinduer og solvaegge med monolitisk silica aerogel.
Denmark.
Ingerslev Jensen, K.
1991.
"Windows and solar walls with monolithic solica aerogel; Vinduer og solvaegge med monolitisk silica aerogel."
Denmark.
@misc{etde_10133524,
title = {Windows and solar walls with monolithic solica aerogel; Vinduer og solvaegge med monolitisk silica aerogel}
author = {Ingerslev Jensen, K}
abstractNote = {This report deals with the experimental and theoretical work concerning application of evacuated monolithic silica aerogel as a transparent insulating material for window panes and covers for solar walls. Models for determination of the heat transfer through the aerogel have been mentioned and the relevant equations given. Because of the nature of the material it will have to be protected in a construction similar to that of an insulating glazing. Four prototypes of up to 1 m x 1 m have been made with 4 different kinds of sealing of the edge, and they have been investigated both theoretically and experimentally with special interest to the cold bridge effect of the sealing of the edge for which the results of an analytical model and measuremnts correspond very well. The cold bridge effect can be important in this context. For the last and biggest prototype a frame was mounted and measurements were made in a guarded hot-box. Furthermore, simulations have been made for a period of 12 months of the aerogel construction both used as a cover for solar walls for an old appartement and a new low-energy house and as windows in an ordinary house. The expected total heat loss of an insulated glazing window with aerogel will be about 0.5 Wm-2K-1 and the solar transmittance will be 75%. As the visibility through an aerogel window is not good enough for the time being to replace ordinary windows, calculations have been made of the energy balance of the aerogel window when used as a daylight wall facing north. Finally an estimate has been made of the price of the aerogel window when used in a window or as a cover for a solar wall. The result is that the price of an aerogel window may be as high as 2700 dkr./m2 to be profitable for private houses dependent of the energy saving. (author) 27 refs.}
place = {Denmark}
year = {1991}
month = {Sep}
}
title = {Windows and solar walls with monolithic solica aerogel; Vinduer og solvaegge med monolitisk silica aerogel}
author = {Ingerslev Jensen, K}
abstractNote = {This report deals with the experimental and theoretical work concerning application of evacuated monolithic silica aerogel as a transparent insulating material for window panes and covers for solar walls. Models for determination of the heat transfer through the aerogel have been mentioned and the relevant equations given. Because of the nature of the material it will have to be protected in a construction similar to that of an insulating glazing. Four prototypes of up to 1 m x 1 m have been made with 4 different kinds of sealing of the edge, and they have been investigated both theoretically and experimentally with special interest to the cold bridge effect of the sealing of the edge for which the results of an analytical model and measuremnts correspond very well. The cold bridge effect can be important in this context. For the last and biggest prototype a frame was mounted and measurements were made in a guarded hot-box. Furthermore, simulations have been made for a period of 12 months of the aerogel construction both used as a cover for solar walls for an old appartement and a new low-energy house and as windows in an ordinary house. The expected total heat loss of an insulated glazing window with aerogel will be about 0.5 Wm-2K-1 and the solar transmittance will be 75%. As the visibility through an aerogel window is not good enough for the time being to replace ordinary windows, calculations have been made of the energy balance of the aerogel window when used as a daylight wall facing north. Finally an estimate has been made of the price of the aerogel window when used in a window or as a cover for a solar wall. The result is that the price of an aerogel window may be as high as 2700 dkr./m2 to be profitable for private houses dependent of the energy saving. (author) 27 refs.}
place = {Denmark}
year = {1991}
month = {Sep}
}