Latent heat accumulating greenhouse

Details Latent heat accumulating greenhouse Latent heat accumulating greenhouse

1982-09-10

1985-04-16

Scott, Samuel

Stoves and furnaces

Tool having fluid fuel burner

Curling iron

126400, 126426, 126430, 126436, 47 17, F24J 302

Patent

active

045109214

DESCRIPTION:

BRIEF SUMMARY
TECHNICAL FIELD

The present invention relates to latent heat accumulating greenhouse utilizing solar heat which can save fuel cost for heating.


BACKGROUND OF THE INVENTION

Conventionally, the greenhouse is heated by the solar heat during shining hours, but during the nighttime and rainy weather, the greenhouse should be heated by the electric heat, hot water etc. according to falling outdoor temperature, thus requiring high fuel cost.


SUMMARY OF THE INVENTION

Subsequently, according to the latent heat accumulating greenhouse of the present invention, a heat accumulating chamber partitioned by transparent sheets is provided between the attic and a floor surface facing north in the greenhouse, and a blower fan is disposed to confront an opening provided at the lower portion in said heat accumulating chamber, while, in the heat accumulating chamber, a heat accumulating unit having a large number of light transmitting windows and enclosing a phase transformation heat accumulating material therein is detachably suspended in a position close to windowpanes at the north side. Therefore, the arrangement is such that solar heat during shining hours is introduced into the narrow heat accumulating chamber for accumulation of heat by the use of the phase transformation heat accumulating material, and the heat thus accumulated is discharged during the period in which the external atmospheric temperature has fallen. By the arrangement of the present invention as described above, the high heat absorbing efficiency may be achieved through simple construction, and a large amount of endothermic heat accumulation can be effected. Owing to the above, heating by heat radiation may be continued for a long period of time, and therefore, only an extremely small amount of auxiliary heat is necessary, with a consequent saving of fuel cost to a large extent.
The heat accumulating chamber B is created facing north in the greenhouse, then the sun's ray coming from the south are utilized to warm the main parts of the greenhouse. Also, the south side of the accumulating chamber B is partitioned by a transparent sheet 1 and the heat is accumulated in the chamber B by a part of the sun's rays.
The heat accumulating unit comprises a rectangular flat bag-like container of flexible material which is partitioned into a plurality of sections by check-like pattern heat seals. Then not only the movement of the medium within the container is restricted, but even if the container should be broken, the amount of medium flowing out would be limited to a minimum.
Furthermore, the high temperature air at the upper part of the greenhouse is led to the heat accumulating chamber B through a duct 6. As a result the heat accumulating effect is further improved.


BRIEF DESCRIPTION OF THE DRAWING

FIG. 1 is a longitudinal sectional view showing an essential portion of a latent heat accumulating greenhouse according to one preferred embodiment of the present invention,
FIG. 2 is a front elevational view of a heat accumulating member employed in the arrangement of FIG. 1,
FIG. 3 is a cross section taken along the line III--III of FIG. 2,


BEST MODES FOR EFFECTING THE PRESENT INVENTION

The present invention will be described in more detail hereinbelow with reference to the accompanying drawings.
In FIG. 1, the greenhouse A has a heat accumulating chamber B provided in its interior facing the north side. The heat accumulating chamber B is created by a transparent plastic sheet 1 which can be rolled up. A small gap exists between the top of the transparent plastic sheet 1 and the roof. At the lower portion of the heat accumulating chamber B, there is disposed at least one blower fan 2, which confronts at least one opening 1a provided at a skirt portion of the plastic sheet 1 so as to feed air inside the heat accumulating chamber B into a greenhouse main portion A.sub.1 through said opening 1a. Moreover, in the vicinity of window panes facing the north side in the heat accumulating chamber B, a heat accumulating member 3 generally covering the entire are

REFERENCES:
patent: 3960205 (1976-06-01), Laing
patent: 3964678 (1976-06-01), O'Hanlon
patent: 3990635 (1976-11-01), Restle et al.
patent: 4212292 (1980-07-01), Reinert
patent: 4290416 (1981-09-01), Maloney
patent: 4306542 (1981-12-01), Reinert
patent: 4421101 (1983-12-01), Stice

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