Stoves and furnaces – Solar heat collector – Solar collector forms part of building roof
Patent
1997-07-08
2000-01-11
Lazarus, Ira S.
Stoves and furnaces
Solar heat collector
Solar collector forms part of building roof
126623, 126704, 126706, 126709, 52222, E04D 1318, F24J 246
Patent
active
060124490
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The invention relates to an outer wall element for buildings wherein, for the utilization of solar energy, between an inner wall shell and an outer, solar-radiation permeable wall shell, a solar-radiation permeable outer heat-insulating layer is arranged, the latter being separated from an inner heat-insulating layer along to the inner wall shell by an interface that absorbs the solar energy from the outer heat-insulating layer, and whereby at least the inner wall shell is provided with marginal lining elements, such as parts of a frame, of a panel or the like, extending at least up to the interface and conveying heat to the inner wall side.
BACKGROUND OF THE INVENTION
Outer wall elements of this kind are known from EP 0 250 691 A1. Its wall structure has the disadvantage that, due to the utilization of solar energy, high temperatures result in the outer heat-insulating layer and at the interface with the inner heat-insulating layer, which could lead to problems because of the lining elements reaching up to the inner wall shell, either in view of insufficient thermal stability of the materials or because of excessive heat conductivity through the lining elements to the interior space.
OBJECT OF THE INVENTION
It is the object of the present invention to provide an outer wall element of the kind mentioned in the introduction, so that the lining elements, especially thoses of the inner wall shell, are protected against the high temperatures reached in the inner wall structure.
SUMMARY OF THE INVENTION
According to the invention this object is achieved in an outer wall element of the type described in which the outer heat-insulating layer and the lining elements are separated from each other by insulating parts of poor heat conductivity, which starting from the lining elements cover the inner heat-insulating layer along a marginal strip in the interface.
The insulating parts provided according to the invention shield the lining elements from the high temperatures in the outer heat-insulating layer and at the interface towards the inner heat-insulating layer, so that the lining elements do not take up this high temperatures. This not only limits high heat conductivity towards the inner space, but protects lining elements, particularly frame parts which can not take the high temperatures, such as heat-insulating fillets, packing strips, etc. The marginal strip along which the insulating elements cover the inner heat-insulating layer in the interface is wide enough to prevent a heat flow from passing across the marginal strip towards the lining elements. It is however advisable to allow the insulating elements to contribute to the utilization of solar energy, and for this purpose to take steps so that the solar energy received at the absorbing interface can flow through to the wall structure on the side of the inner space, not only through the inner heat-insulating layer, but to a certain extent also through the insulating parts and the lining elements. For this purpose the heat conductivity of the insulating parts is selected so that the heat flow through the insulating parts and the lining elements towards the surfaces defining the inner space, results essentially in the same surface temperature as that of the corresponding surface of the inner wall shell.
A preferred embodiment is characterized in that the insulating parts extend marginally over the entire thickness of the outer heat-insulating layer, and besides resting on one side against the inner heat-insulating layer, also rest on the other side against the outer wall shell. In this way the insulating parts border the outer heat-insulating layer all around, thereby protecting the wall structure outside the range of the insulating parts from strong exposure to high temperatures. Suitably the surface of the insulating parts facing the outer heat-insulating layer runs obliquely with respect to the plane of the outer wall shell, so that the surface bordered by the insulating parts of the outer heat-insulating layer is larger t
REFERENCES:
patent: 3937208 (1976-02-01), Katz et al.
patent: 4063544 (1977-12-01), Bowen
patent: 4112921 (1978-09-01), MacCracken
patent: 4138991 (1979-02-01), Lorenz
patent: 4143641 (1979-03-01), Christopher
patent: 4178909 (1979-12-01), Goolsby et al.
patent: 4215677 (1980-08-01), Erickson
patent: 4269173 (1981-05-01), Krueger et al.
patent: 4271826 (1981-06-01), Duchene
patent: 4278072 (1981-07-01), Ryan et al.
patent: 4296742 (1981-10-01), Hussmann
patent: 4305384 (1981-12-01), Proven
patent: 4313429 (1982-02-01), McAlaster
Dubno Herbert
Lazarus Ira S.
Lee David
Norsk Hydro a.s.
LandOfFree
Outer wall element for buildings does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Outer wall element for buildings, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Outer wall element for buildings will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1454828