Cooling element and cooling device and method for their operation

Abstract

An elongated right parallelepiped cooling element has a housing comprising a horizontal ceiling which forms a flat top surface which is about 2 mm below a room ceiling. Downward-projecting side parts, which hold a horizontal air-permeable wall at the bottom, connect to the ceiling. Arranged in the housing is an antechamber which is connected to an air connection and, at the top, has transverse slots distributed over its length. Air outlets distributed uniformly along a center line are arranged in the top surface. Beneath the ceiling, a pipe extends along an edge, through which pipe cooling liquid, possibly also heating liquid, can be passed. As a result, a room temperature in the comfort range can be maintained during working hours when the cooling air supply is always sufficient but not unnecessarily high. In addition, the room ceiling can be precooled without cooling air or even preheated outside working hours.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The invention relates to a cooling element according to the precharacterizing clause of claim 1, as used for cooling or generally for air-conditioning of rooms, in particular of office rooms and the like, and a cooling device which comprises such a cooling element and a method for its operation. [0003] 2. Description of the Related Art [0004] WO-A-00 / 52 395 discloses a cooling element of the generic type which releases cooling air through an air-permeable wall at its bottom, which air flows downwards into the room to be cooled. However, the cooling effect achievable in this manner is not always sufficient, particularly in offices, since the cooling requirement is often very high owing to equipment which releases a great deal of heat. The instantaneous cooling requirement can then be so great during working hours that it can be covered only with difficulty by means of only the known cooling element of the generic typ...

AI Technical Summary

Benefits of technology

[0006] It is the object of the invention to further develop a cooling element of the generic type for a cooling device so that it is suitable for ensuring a sufficient cooling effect even at high heat loads without a cooling air supply substantially above that provided by the fresh air requirement being necessary. Moreover, it should enable the heat storage capacity of the room ceiling to be utilized in an economical manner without further measures.

Problems solved by technology

However, the cooling effect achievable in this manner is not always sufficient, particularly in offices, since the cooling requirement is often very high owing to equipment which releases a great deal of heat.

Cooling elements can be supplemented by separate apparatuses for concrete core cooling, but this entails a high additional expense since pipes have to be laid in the ceiling and concreted in for this purpose.

Moreover, the consequences of instantaneous heat load peaks can be reduced in this manner but cannot be compensated.

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