EP0859201A2 - Système pour la climatisation de l'intérieur des bâtiments - Google Patents

Système pour la climatisation de l'intérieur des bâtiments Download PDF

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Publication number
EP0859201A2
EP0859201A2 EP98102411A EP98102411A EP0859201A2 EP 0859201 A2 EP0859201 A2 EP 0859201A2 EP 98102411 A EP98102411 A EP 98102411A EP 98102411 A EP98102411 A EP 98102411A EP 0859201 A2 EP0859201 A2 EP 0859201A2
Authority
EP
European Patent Office
Prior art keywords
heat exchangers
zones
air
footboard
fans
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP98102411A
Other languages
German (de)
English (en)
Inventor
Francesco Avalle
Giovanni Cravero
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eurom - Di Avalle Francesco e Cravero Giovanni Battista - SNC
Original Assignee
Eurom - Di Avalle Francesco e Cravero Giovanni Battista - SNC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eurom - Di Avalle Francesco e Cravero Giovanni Battista - SNC filed Critical Eurom - Di Avalle Francesco e Cravero Giovanni Battista - SNC
Publication of EP0859201A2 publication Critical patent/EP0859201A2/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0003—Exclusively-fluid systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/06—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units

Definitions

  • the present invent ion refers to a system for air conditioning the interior of buildings.
  • the invention concerns a hot or cold water conditioning, for heating or cooling building rooms, respectively.
  • the system according to the invention proved to be particularly suitable for heating or cooling any residential or industrial room in which a first plurality di zones of high probability of occupancy and a second plurality of zones of low probability of occupancy are defined.
  • Typical examples of the above mentioned environments are the rooms of administration offices where the employees occupy working positions that are substantially fixed during the working time, the industrial rooms in which the workers are assigned to the machinary control, schoolrooms, and residential rooms used as bedrooms.
  • heating systems For heating residential and industrial rooms there are used heating systems based on a hot water circuit provided with heat exchangers located in the rooms to be heated and a central or local boiler for heating the circulating water.
  • heat exchangers In order to reduce the surfaces and volumes occupied by the heat exchangers in the rooms to be heated, so that the available space can be better used for furnitures or working apparatuses, such heat exchangers are usually disposed adjacent the walls, under windowsills or near the doors.
  • the temperature of the central zones of the rooms - where it is generally more likely that people stay - is lower than that of the peripheral zones near the walls where the probability of people staying is low.
  • this solution has the further drawback of preventing a differentiated adjustment or control of the temperature inside the room to be heated.
  • a first object of the present invention is therefore to solve the problem of obtaining different temperatures at different points of the rooms to be heated, so as to achieve temperatures that are adequate in every zone of the room, while accomplishing a saving in the running expenses.
  • This object of the present invention is accomplished through a conditioning system as claimed in claim 1.
  • a futher drawback of the known heating systems comes from the fact that the heat exchangers are to be connected to a hydraulic circuit that is embedded in the building wall structure. Therefore the locations of the heat exchangers inside the rooms to be heated are to be to selected when designing the building, i.e. when the use of the rooms has not yet been defined.
  • the locations of the heat exchangers cannot be easily and inexpensively changed at a later time should a different use be assigned to one or more rooms.
  • a futher object of the present invention is therefore to solve the problem of rendering easier a different arrangement of the heat exchangers inside the rooms to meet changed situations of use.
  • Fig. 1 there is schematically shown a system according to the invention for air conditioning a room 1, for example used as an office, in which there are defined first zones A and B, enclosed by dots and dashes lines in Fig. 1, wherein the probability of people staying is high, and a second zone Z where the probability of people staying is low.
  • Room 1 further comprises an entrance 2 and two windows 3, 4.
  • said first zones A and B substantially correspond to the working posts of as many clerks, each post including a desk 5a, 5b and a chair 6a, 6b.
  • first air/water heat exchangers 7a and 7b there are located first air/water heat exchangers 7a and 7b, while second air/water heat exchangers 8, 9 and 10 are located in said zones Z having low probabilities of permanence and being adjacent one of the walls in room 1.
  • Each of said first heat exchangers 7a and 7b is further connected through pairs of pipes 11a and 11b to a corresponding heat exchanger 8 and 10, respectively, of said second heat exchangers 8, 9 and 10.
  • Pipes 11a and 11b are disposed under the floor of the room 1 to be heated and are protected by ducts 31a and 31b, respectively.
  • said second heat exchangers 8, 9 and 10 are connected to the pipeworks 15 of a central heating system comprising a boiler (not shown) for heating the water to be circulated in the heat exchangers.
  • respective adjusting valves 16, 17a and 17b for separately adjusting the flow of hot water sent into said first and second heat exchangers, thus making it possible to obtain a temperature difference between said first zones A and B and said second zone Z.
  • Fig. 2 illustrates a preferred embodiment in which one (7a) of said first heat exchangers 7a and 7b is housed within a conditioning unit 20 on which people can step, equipped with an inclined stepped footboard 21, a pair of sidewalls 22, a front wall 23, a rear wall 24 and a base 25.
  • a heat exchanger 7a of the type comprising a radiator provided with a coil 26 in which water circulates, and with a plurality di metal fins 27 welded to said coil 26 for increasing the heat spreading.
  • a pair di electric fans 28 is further provided inside the conditioning unit 20, adjacent to said rear wall 24 for creating a forced flow of warm air.
  • First slits 29 for the outlet of the forced air are formed in the rear wall 24 in correspondence of the fans 28, and second slits 30 for the inlet of the drawn air are provided in correspondence of the steps in the footboard 21.
  • a temperature sensor (not shown) is further provided for actuating said fans 28 when the temperature inside the footboard 21 reaches a predetermined value (threshold).
  • the provision of the fans 28 is thus particularly effective in maintaining a minimum adequate temperature in a room 1 containing the unit 20.
  • Unit 20 can further be provided with one or more conventional electric resistances for heating air when hot water is lacking in the system because this latter has not yet been actuated, or in the event of a failure.
  • the system of the invention allows for a large energy saving with respect to the use of conventional electric heaters located in the rooms to be heated.
  • Fig. 2 further illustrates the pipes 11a covered by a protection duct 31a on which people can step, such pipes connecting the coil 26 of the heat exchanger 7a to the central heating system in correspondence of the heat exchanger 8.
  • Pipes 11a are positioned adjacent the floor of the room to be heated and can therefore be easily moved and laid in different locations similarly to what happens for the conventional electric cables.
  • said pipes 11a could be housed below the floor when suitable ducts have been provided or when the floor is a so-called "floating" floor.
  • the heat source By rendering the heat source local, as provided by the present invention, particularly in the high probability zones and more particularly under the feet of the people in the room, it is possibile to concentrate the heat distribution where it is more required with a consequent reduction of the heating costs.
  • the conditioning system according to the invention further allows to easily locate the conditioning units anywhere in the room to be heated.
  • the conditioning system according to the invention has been described with reference to the heating of a room, the system can advantageously be used for cooling a room when the temperature of the circulating water is kept low enough by means of a centralized device instead of a boiler.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Drying Of Solid Materials (AREA)
EP98102411A 1997-02-14 1998-02-12 Système pour la climatisation de l'intérieur des bâtiments Withdrawn EP0859201A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT97TO000119A IT1291064B1 (it) 1997-02-14 1997-02-14 Sistema per il riscaldamento di locali di edifici.
ITTO970119 1997-02-14

Publications (1)

Publication Number Publication Date
EP0859201A2 true EP0859201A2 (fr) 1998-08-19

Family

ID=11415364

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98102411A Withdrawn EP0859201A2 (fr) 1997-02-14 1998-02-12 Système pour la climatisation de l'intérieur des bâtiments

Country Status (2)

Country Link
EP (1) EP0859201A2 (fr)
IT (1) IT1291064B1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3003666A1 (fr) * 2013-03-21 2014-09-26 Toshiba Kk Dispositif d'estimation de probabilite de presence dans une piece, procede et programme correspondants

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3003666A1 (fr) * 2013-03-21 2014-09-26 Toshiba Kk Dispositif d'estimation de probabilite de presence dans une piece, procede et programme correspondants

Also Published As

Publication number Publication date
IT1291064B1 (it) 1998-12-14
ITTO970119A1 (it) 1998-08-14

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