1987-07-13
1989-04-04
Joyce, Harold
F24F 1306
Patent
active
048175072
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
Field of the Invention
Modern as well as older ventilating systems of our dwellings may not fulfill requirements as to acceptable comfort and function according to declarations from the Swedish authorities. Complaints about bad air, draught problems, moisture and mould have become more and more frequent.
An ordinary manner of solving draught problems is to reduce air circulation or increase the temperature in the flats. In the first instance the air circulation often becomes so low that the resident experiences stale and damp air and at worst gets a mould problem. In the second instance the energy consumption increases in an unacceptable way.
Ventilating systems of modern and older dwellings normally just ventilate the building. The heating is accomplished by means of radiator systems in order to cover the transmission losses.
SUMMARY OF THE INVENTION
In new airtight well insulated houses a very small amount of additional heat from the heating system is needed. The present invention is based on the principle that this amount of additional heat can be supplied to the ventilating air in a ventilating system supplying and removing air.
The device according to the invention is advantageous in that it supplies heat to the ventilating air as well as heat to cover the transmission losses. In this way the radiator system can be dispensed with which lowers the building costs. Thus, the present invention provides improved comfort at the same time as the installation costs are reduced considerably.
The air blower means is preferably located along the whole outer front of the room or flat in order to spread the heated air uniformly and attain a complete degree of ventilation. This location also prevents a possible so-called cold fall from the windows.
The air is blown into the room with such low impulse that dust and similar particles are not carried along by the air stream, which corresponds to an air flow velocity in the range of 0.2-0.8 m/s. The air blown into the room is then preferably forwarded in the flat by means of special upper air means which are located in partition walls about 0.5 m above the floor.
In accordance with an advantageous further development of the device according to the invention said duct is connected to the apparatus for conditioning air by a pressure box mounted in the wall of the room, which box serves to equalize the supply pressure and eliminate turbulence in the air flow.
In accordance with another advantageous embodiment of the device according to the invention the air supply system consists of a ventilating system which by a central apparatus transports ventilating air having a basic temperature, preferably about 15.degree. C., in winter time, to a hot air apparatus in each flat, the temperature of which can be controlled individually, suitably by means of an automatic temperature regulator. In this apparatus the supplied air is preferably mixed with filtered return air in the flat.
The energy is preferably supplied to the hot air apparatus via the circulated hot tap water and/or an electrical battery.
The device according to the invention can suitably be used also in combination with a passive air-solar collector which advantageously forms a portion of the external wall or the roof construction for heating exterior air to the air heating system. When the added solar heat then surmounts what is needed to heat the rooms, it can be used to heat hot tap water. By means of the passive air-solar collector the flats which are adjacent the air-solar collector can be cooled by reverse function of a heat pump. The device according to the invention can also be used for basic ventilation of the room and thus can be generally used for conditioning of rooms.
BRIEF DESCRIPTION OF THE DRAWINGS
An exemplary embodiment of the present invention will now be described more in detail with reference to the annexed drawing which shows a portion of an outer wall of a house adjacent a naked floor, in cross section with a device according to the invention installed.
DE
REFERENCES:
patent: 2395233 (1946-02-01), Richardson
patent: 2742845 (1956-04-01), Simpson
patent: 3010380 (1961-11-01), Freeman
patent: 3343473 (1967-09-01), Gillick et al.
patent: 4300441 (1981-11-01), Dicks
Gerhartz Bengt-Ake
Joyce Harold
Kedbrant Tommy
Soderstrom Bo
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