Static structures (e.g. – buildings) – Viewing port for specific environment
Patent
1983-05-17
1985-12-31
Bell, J. Karl
Static structures (e.g., buildings)
Viewing port for specific environment
126422, 126436, F24J 302, E06B 924
Patent
active
045612218
DESCRIPTION:
BRIEF SUMMARY
This invention relates to windows and in particular to windows of large surface area in relation to rooms which they serve.
It is increasingly common practice in building construction, especially in construction of large business and commercial premises, to employ windows of large surface area in relation to the rooms or other spaces to which they are intended to introduce external natural light. In many buildings, these windows are not capable of opening, the buildings being served by air conditioning systems. Particularly with high rise buildings which are exposed to a greater amount of solar radiation, it is the practice to reduce glare within the buildings by employing a tinted or a reflective glazing in order to minimize the amount of light passing therethrough. Both forms of glazing are not very popular with persons inside the building, especially the reflective glazing which indeed is a source of nuisance to people outside the building; indeed reflective types of glazing while controlling solar radiation input, reflects solar energy onto north facing sides of adjacent buildings in the northern hemisphere (south facing in the southern hemisphere). With tinted glass, there is the significant disadvantage that whilst the light may be cut out, infrared radiation is not; it is absorbed by the glass and long wavelength radiant thermal energy is reemitted into a room fitted with the window and can still lead to considerable heating up to an extent which air conditioning may be unable to cope with, especially if, as a result of the use of partitioning, the space within the building does not benefit from the air conditioning to the same extent at all locations. Otherwise particularly powerful air conditioning systems are needed. There is also the risk that, because of the darkening of the glass, some heat will be absorbed by the glass to a greater extent and with colourless glass, unless the glass is correctly mounted, there is a risk of greater expansion and possible cracking thereof as a result of thermal stress.
It is an object of the invention to provide a form of glazing which is effective in reducing insulation in buildings without having the aforementioned disadvantages.
According to the present invention, there is provided, in or for use in a building, a glazing system including glazing which comprises a front glazing member on which solar radiation is to be incident, which glazing member is transparent or translucent, and a rear glazing member opposed to said glazing member and which is likewise transparent or translucent, which glazing members define therebetween at least one passage for throughflow of a liquid as part of a duct means comprised by or to be installed with the glazing members and comprising appropriate components for forming a closed circuit passing externally of the glazing members for passage of a heat exchange liquid and dissipation of absorbed solar energy at a position external of the glazing members, the colouring of the heat exchange liquid being such that solar radiation incident on the front glazing member is able to pass through the heat exchange liquid whereby its infrared component is at least partially absorbed thereby and light is able to pass therethrough in accordance with the optical densities of the heat exchange liquid and the materials from which the front and rear glazing members are made.
By employing a cooling system passing through the glazing system, it is intended to remove from the glazing and thereby prevent from affecting the temperature in the room a major proportion of the thermal energy which would otherwise work to raise the temperature within the room. One or both of the front and rear glazing members may be made of a darkened material thereby to reduce the amount of glare within the room. It is also possible for the heat exchange liquid to be coloured. This will have the advantage of enabling the maximum amount of thermal energy to be absorbed directly by the heat exchange liquid and removed from the glazing members. If a darkened heat exchange liqu
REFERENCES:
patent: 3107052 (1963-10-01), Garrison
patent: 4020989 (1977-05-01), Kautz
patent: 4044519 (1977-08-01), Morin et al.
patent: 4169460 (1979-10-01), Popovich et al.
patent: 4380994 (1983-04-01), Seemann
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