Heat exchange – Geographical
Patent
1998-03-18
2000-11-07
Lazarus, Ira S.
Heat exchange
Geographical
165 47, 165 53, F28D 300
Patent
active
061422142
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a method for altering the temperature of a premises, whereby a medium in the summertime is cooled during the night by cool night air and is brought into a floor layer under a floor of the premises to cool said premises during the day. The invention also relates to a device for carrying out this method.
2. Description of the Related Art
According to SE public specification 351 716 it is already known to utilize the floor layer in a building as an accumulator for cold. This accumulator is cooled during the night in the summer and used to cool the premises in the daytime. However, there is a risk that cooling of said accumulator causes an undesired migration of moisture from the ground and upwards through the floor layer.
SUMMARY OF THE INVENTION
The object of the present invention has been to provide a simple method and a simple device which remedies this shortcoming.
Thanks to the method and device according to the invention, undesired migration of moisture from the ground and upwards through the floor layer is prevented.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will be further described below with reference to the accompanying drawings, in which:
FIG. 1 schematically illustrates a device for carrying through the method according to the invention;
FIG. 2 is a section view II--II through the device of FIG. 1;
FIG. 3 is a section view III--III through the device of FIG. 1; and
FIG. 4 is a section through a conduit system forming part of the device according to the invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
In FIG. 1 there is illustrated a building 1, e.g. a school building with premises 2 and 3, e.g. school premises. The building 1 has a floor layer 5 which is located on a bed/foundation 5a placed on a section of ground 4 under the building 1. The foundation 5a consists of an upper layer 5b of stone material, e.g. macadam, and a lower layer 5c of another stone and/or gravel material. The foundation 5a preferably has a depth of about 30 cm, whereby the upper layer 5b is about 20 cm and the lower layer 5c about 10 cm. Between the premises 2 and 3 there is an intermediate floor structure 6.
In order to cool the floor layer 5 and the intermediate floor structure 6 during the summer, there is provided a cooling device 7 comprising a refrigerating machine 8 located outdoors. The refrigerating machine 8 includes a fan device 9 and a coolant system 10 with a coolant which preferably contains an anti-freeze agent, e.g. glycol, for protecting the coolant system 10 from bursting by the frost in the winter. The coolant system 10 cooperates with a first heat exchanger 11 and a tube system 12 also cooperates with said first heat exchanger 11, said tube system 12 being connected for communication with a conduit system 13 which is located in the floor layer 5 and/or the foundation 5a and in the intermediate floor structure 6. The conduit system is free from freon and includes no compressor.
The object of said cooling device 7 is in the summer, during the night, to transport by the fan device 9, cool night air through the refrigerating machine 8 for cooling the coolant in the coolant system 10 by heat exchange with the cooler night air. The chilled coolant is fed through the coolant system 10 to the first heat exchanger 11 and cools therein, the liquid 14 located in the tube system 12 and the conduit system 13 and consisting preferably of water or a mixture of substantially water.
For being able to chill the premises in the summertime for an entire working day, i.e. up to about 8 hours, with full desired capacity, the chilled liquid 14 is during the night brought to cool not only the floor layer 5 but also the foundation 5a until said crawl space 5 as well as said foundation 5a have been sufficiently large to cool the premises 2 as the floor layer 5 as well as the foundation 5a is sufficiently large to cool the premises 2 as mentioned, i.e. up to about 8 hours.
The liquid 14 is brought to cool the foundati
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Lazarus Ira S.
McKinnon Terrell
LandOfFree
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