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WO2024183976A1 - Dispositif de refroidissement ou de chauffage de bâtiments - Google Patents

Dispositif de refroidissement ou de chauffage de bâtiments Download PDF

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Publication number
WO2024183976A1
WO2024183976A1 PCT/EP2024/051257 EP2024051257W WO2024183976A1 WO 2024183976 A1 WO2024183976 A1 WO 2024183976A1 EP 2024051257 W EP2024051257 W EP 2024051257W WO 2024183976 A1 WO2024183976 A1 WO 2024183976A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
heat exchanger
burner
cooling
supplied
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.)
Pending
Application number
PCT/EP2024/051257
Other languages
German (de)
English (en)
Inventor
Thomas KÜBLER
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.)
Kuebler GmbH
KUBLER GmbH
Original Assignee
Kuebler GmbH
KUBLER GmbH
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
Priority claimed from DE102023109124.7A external-priority patent/DE102023109124A1/de
Application filed by Kuebler GmbH, KUBLER GmbH filed Critical Kuebler GmbH
Publication of WO2024183976A1 publication Critical patent/WO2024183976A1/fr
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/12—Tube and panel arrangements for ceiling, wall, or underfloor heating
    • F24D3/16—Tube and panel arrangements for ceiling, wall, or underfloor heating mounted on, or adjacent to, a ceiling, wall or floor
    • F24D3/165—Suspended radiant heating ceiling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H4/00—Fluid heaters characterised by the use of heat pumps
    • F24H4/06—Air heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D15/00—Other domestic- or space-heating systems
    • F24D15/04—Other domestic- or space-heating systems using heat pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1084—Arrangement or mounting of control or safety devices for air heating systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/04—Gas or oil fired boiler
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/12—Heat pump
    • F24D2200/123—Compression type heat pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/16—Waste heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D5/00—Hot-air central heating systems; Exhaust gas central heating systems
    • F24D5/06—Hot-air central heating systems; Exhaust gas central heating systems operating without discharge of hot air into the space or area to be heated
    • F24D5/08—Hot-air central heating systems; Exhaust gas central heating systems operating without discharge of hot air into the space or area to be heated with hot air led through radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/06—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators
    • F24H3/08—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes
    • F24H3/087—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes using fluid fuel

Definitions

  • the invention relates to an arrangement for selectively cooling or heating buildings according to the preamble of claim 1,
  • Heating systems for heating large buildings, such as halls in particular, which comprise a large number of individual infrared radiators, in particular dark radiators, are known, for example, from DE 10 2007 047 661 A1.
  • the dark radiators comprise a housing which is suspended horizontally above an area of the building to be heated and is open at the bottom, in which a radiation pipe is accommodated which is supplied with heated exhaust gas by a gas burner.
  • the other end of the radiation pipe is connected to an exhaust line and is supplied with negative pressure via a suction fan. Due to the thermal energy generated in the radiation pipe, it heats up to a temperature in the range of 300 °C to 750 °C and emits infrared radiation in the manner of a black body.
  • This infrared radiation leads to a direct heating of the area occupied by people, animals and objects below the radiation tube, which has the advantage over conventional building heating systems, which primarily generate warm air and distribute it throughout the building, that in a narrowly defined area of the building only the surfaces of people, animals and objects are heated by the infrared radiation, but not the volume of air inside the building. Since in this case no air is heated in the floor area of the building, which then rises upwards and is no longer available as warm air in the area occupied by people, the infrared dark radiator heaters described work comparatively economically and are therefore preferably used for heating halls.
  • infrared dark radiator heating systems mentioned above are that they can only be heated with gas, without the possibility of using them efficiently to heat buildings when there is a surplus of electrical energy in the public power grid, as occurs on cold, sunny and windy winter days, for example.
  • the heaters can only be used to heat buildings, not to cool them. Accordingly, it is an object of the present invention to provide an arrangement with which a narrowly defined floor-side space area of the building can be optionally heated or cooled with efficient utilization of the energy used.
  • an arrangement for heating or cooling buildings in particular halls, comprises an elongated housing which is closed at the top and open at the bottom and in which at least one dark radiator unit is accommodated with a radiation tube which can be supplied with hot gas by a burner and preferably an associated burner blower.
  • the arrangement is characterized in that it further comprises an electrically operated cooling and heating unit arranged outside the housing, in particular on the roof of the building or hall, which optionally provides a cooled or heated heat transport medium.
  • the arrangement further comprises a heat exchanger connected to the electrically operated cooling and heating unit via a supply line and return line, which is designed to be supplied with a cooled heat transport medium provided in the cooling and heating unit via the supply line when the burner is deactivated, and with a heated heat transport medium provided in the electrical cooling and heating unit when the burner is activated.
  • the housing of the arrangement also contains a fan which is designed to supply the heat exchanger with ambient air which exits through air outlet openings on the underside of the housing into the area below the housing.
  • a fan which is designed to supply the heat exchanger with ambient air which exits through air outlet openings on the underside of the housing into the area below the housing.
  • the housing Due to the elongated shape of the housing, which is suspended above a corridor area or a work area in a hall at a height of several meters, only a narrow area of the room is heated with heat radiation, similar to a heat curtain, and only locally and specifically with warm air blown downwards via the openings, which significantly improves the thermal efficiency of the arrangement for a given heating time.
  • the electric cooling and heating unit which operates similarly to a known heat pump and contains a compressor and another heat exchanger, provides a cooled heat transport medium that is fed to the heat exchanger in the housing of the arrangement according to the invention via the supply line.
  • the ambient air sucked in by the fan is cooled in a known manner by the fan in the housing, which supplies the heat exchanger with ambient air, and blown out into the room area below through the outlet openings provided on the underside of the housing, which are arranged downstream of the heat exchanger.
  • the cooled air emerging from the air outlet openings at a flow rate that is preferably low compared to conventional air conditioning systems acts on the area below the housing like a spatially limited cold curtain, without mixing the warm air in the adjacent warm areas of the room with the cooled air.
  • two dark radiator units with respective radiation rollers and burners are provided on either side of the heat exchanger arranged centrally between them in the housing of the arrangement.
  • This embodiment has the advantage that the housing has a large length-to-width ratio, which means that an elongated room area, such as a corridor area or a work area in a hall, can be heated very efficiently in winter and cooled locally very efficiently in summer. It is particularly advantageous if the radiation pipes arranged on either side of the central heat exchanger are accommodated in a known double-walled reflector housing, which has a shell on the underside facing the floor of the building, and in which the ambient air supplied to the respective burner is sucked into the interior of the double-walled reflector housing through openings in the area of the respective two longitudinal edges of the housing and is thus preheated in heating mode. This advantageously reduces the energy required to operate the infrared radiation tube in winter.
  • the outlet area of the heat exchanger for the cool air is controlled via electrically operated
  • Flaps can be connected to the respective interior of the double-jet reflector housing in terms of flow, so that the ambient air cooled in the heat exchanger is also blown out towards the floor via the openings in the area of the long edges of the housing.
  • This increases the size of the actively effective air outlet surfaces during cooling operation in summer, which makes it possible to significantly reduce the flow rate of the escaping cooled air and, as a result of the reduced outlet speed, to counteract mixing of the same with adjacent warm air. Due to the cooling zone that is created in the form of a curtain of cooled air with a low flow speed, even large areas can be locally air-conditioned very efficiently without disturbing drafts for the people in these zones.
  • a significantly larger area below the housing of the arrangement according to the invention can be cooled to a room temperature that is comfortable for people in summer with a reduced use of energy.
  • the arrangement according to the invention is preferably controlled via a central electronic control device, to which electrical power is preferably supplied centrally via the power grid, e.g. 10 kW, and which then takes over the control of the burners, possibly the ventilation flaps, as well as the cooling and heating unit and the electrical heating rods of the additional heating.
  • the arrangement according to the invention has the particular advantage that the electrical power supplied in the cooling and heating unit, which has a compressor and another heat exchanger, is converted very efficiently into heat or cooling power due to the heat pump effect.
  • the exhaust pipe via which the exhaust gas from the burner or the burners is led out after exiting the respective radiant pipe, also supplies a heat exchanger, which can be, for example, the previously mentioned additional heat exchanger of the cooling and heating unit, or a heat exchanger thermally coupled to it, which is adapted to the temperatures of the exhaust gas from the burners, so that the residual heat contained in the exhaust gas can be recovered by the cooling and heating unit and, during heating operation, can be fed back to the heat exchanger in the housing of the arrangement.
  • a heat exchanger which can be, for example, the previously mentioned additional heat exchanger of the cooling and heating unit, or a heat exchanger thermally coupled to it, which is adapted to the temperatures of the exhaust gas from the burners, so that the residual heat contained in the exhaust gas can be recovered by the cooling and heating unit and, during heating operation, can be fed back to the heat exchanger in the housing of the arrangement.
  • Fig. 1 is a schematic side view of the arrangement according to the invention suspended from the ceiling of a building with a housing with two dark radiator units arranged therein and a centrally arranged heat exchanger which is supplied with a heat transport medium via a cooling and heating unit arranged on the roof of the building via a supply line and return line.
  • Fig. 2 is a schematic view of the bottom of the housing of Fig. 1 ,
  • Fig. 3 shows the arrangement according to the invention of Fig. 1 and 2 with a double-shell reflector housing during heating operation
  • Fig. 4 shows the arrangement according to the invention from Fig. 1 and 2 with a double-shell reflector housing during cooling operation in summer.
  • arrangement 1 for optionally heating or cooling buildings 100 comprises an elongated housing 6 which is closed at the top and open at the bottom and in which at least one dark radiator unit 2.1; 2.2 is accommodated with a radiation tube 4 which can be supplied with hot gas by a burner 5 in order to heat the radiation tube 4 to a temperature of e.g. 700 ° C for heating operation in winter.
  • the exhaust gas from the burner 5 is discharged from the building 100 by a fan (not specified in more detail) via an exhaust line 28.
  • the arrangement 1 further comprises an electrically operated cooling and heating unit 8 arranged outside the housing 6 for providing a cooled or heated heat transport medium, e.g. a liquid coolant used in refrigerators and air conditioning systems as well as heat pumps, as well as a heat exchanger 10 connected to the cooling and heating unit 8 via a supply line 12a and return line 12b.
  • a cooled or heated heat transport medium e.g. a liquid coolant used in refrigerators and air conditioning systems as well as heat pumps, as well as a heat exchanger 10 connected to the cooling and heating unit 8 via a supply line 12a and return line 12b.
  • the electrically operated cooling and heating unit 8 is designed according to the invention to be supplied with cooled heat transport medium via the supply line 12a when the burner 5 is deactivated and with heated heat transport medium when the burner 5 is activated.
  • the housing 6 of the arrangement which is preferably suspended at a height of e.g. 3 to 4 m above a room area to be heated or cooled, e.g. a corridor area or a work area not shown in detail, also contains a fan 14. This is designed to supply the heat exchanger 10 with ambient air, which is preferably sucked in via air inlet openings not shown in detail, which are formed on the top or in a lateral central section of the housing 6.
  • each of the dark radiator units 2.1, 2.2 preferably has a double-walled reflector housing 20 which is open downwards towards the floor of the building 100 and in which the radiation tube 4 is preferably arranged horizontally.
  • the double-walled or double-shell reflector housing 20 has an interior space 21 and, in the region of the longitudinal edges of the housing 6, has a plurality of further openings 18 which communicate with the interior space 21 and are formed in the lower shell of the reflector housing 20, i.e. the shell facing the radiation tube 4.
  • ambient air is sucked in through these further openings 18 in a known manner, which is then passed through the interior space 21 to the burner 5 and fed to it as preheated air.
  • This construction makes it possible to use the thermal energy content of the air heated by contact with the reflector housing 20 to preheat the combustion air fed to the burner 5 and thus to at least partially recover it.
  • the interior 21 of the double-walled reflector housing 20 of preferably each dark radiator unit 2.1, 2.2 can be connected in terms of flow to the area 11 of the heat exchanger 10 or housing 6, in which the cooling or hot air exits from it, via an electrically actuated ventilation flap 26.
  • a comparatively low flow rate e.g. 0.5 to 5 m/s
  • a total of two dark radiator units 2.1, 2.1 with respective radiation tubes 4 and burners 5 are arranged in the housing 6, between which the heat exchanger 10 is preferably installed centrally. This results in a particularly compact design that allows the cooling air to be introduced via the electrically operated ventilation flaps 26 into both interior spaces 21 of the respective reflector housings 20, from where it is fed to the further openings
  • the electrically operated ventilation flaps 26 are closed during heating operation in winter, which is indicated by the radiant tubes 4 and electrical heating rods 24 provided with dotted crosses in Fig. 3, so that no thermal energy provided by the cooling and heating unit 8 in addition to the warm air sucked in via the other openings 18 in the area of the radiant tubes 4 reaches the burners 5.
  • the outlet area 11 of the heat exchanger 10 for the cool air is connected in terms of flow to the respective interior 21 of the double-walled reflector housing 20 during cooling operation via an electrically actuated flap 26, so that the ambient air cooled in the heat exchanger 10 in the cooling operation is additionally fed via the interior 21 of the double-walled reflector housing 21 of both dark radiator units 2.1, 2.2 to the further openings 18 in the area of the longitudinal edges of the housing 6 on both sides of the central heat exchanger 10, it is also possible to close one or both flaps 26 with the aid of the control device 22, or to open them only partially.
  • each dark radiator unit 2.1, 2.2 is preferably U-shaped, so that in the area delimited by the radiation tube 4 on the underside of the housing 6, additional electrical heating elements, in particular heating rods, 24 can be arranged, which are supplied with electrical current by the control device 22 during heating operation in order to make them glow in a manner known for such heating rods.
  • additional electrical heating elements in particular heating rods, 24 can be arranged, which are supplied with electrical current by the control device 22 during heating operation in order to make them glow in a manner known for such heating rods.
  • the efficiency of the arrangement 1 in heating mode can be increased by the fact that the electrically operated cooling and heating unit 8 contains a further heat exchanger and a compressor, which is supplied with exhaust gas from the burner 5 of one or both dark radiator units 2.1, 2.2 via an exhaust line 28, as indicated in Fig. 1.
  • This opens up the possibility of recovering the residual heat contained in the exhaust gas and supplying it to the heat exchanger 10 in heating mode via the heat transport medium and the supply line 12a. Due to the heat pump effect used here, the electrical energy supplied to the cooling and heating unit 8 to operate the compressor is used considerably more efficiently than with purely electrical heating using heating rods.
  • the electrically operated cooling and heating unit 8 is preferably arranged on the roof of the building 100, which results in a spatial separation between the housing 6 with the heat exchanger 10 arranged therein, which leads to a thermal separation which further increases the efficiency of the arrangement according to the invention.
  • the electrically operated cooling and heating unit 8 and the burner 5, as well as the fan 14 and the heating elements 24 for the additional heating are controlled by a common central electronic control device 22, which is supplied with electrical energy via a mains connection and an associated power supply line, such that during heating operation in winter the burner 5 is activated and the radiant tube is supplied with hot gas and at the same time the heat exchanger 10 is supplied with heated heat transport medium by the electrically operated cooling and heating unit 8 via the supply line 12a.
  • control in cooling mode in summer is carried out in such a way that the burner 5 is deactivated, the fan 14 is activated and cooled heat transport medium is supplied to the heat exchanger 10 via the supply line 12a by the electrically operated cooling and heating unit 8.
  • the electrically operated ventilation flaps 26 are preferably completely closed in heating mode and are fully or partially opened individually or together in cooling mode, depending on the required cooling capacity.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Central Heating Systems (AREA)

Abstract

Agencement (1) pour chauffer ou refroidir des bâtiments (100), comprenant un boîtier allongé (6), qui est fermé sur le côté supérieur et est ouvert vers le fond, et au moins une unité de radiateur sombre (2.1 ; 2.2) avec un tube de rayonnement (4), qui est reçu dans le boîtier (6) et peut être chargé en gaz chaud au moyen d'un brûleur (5) ; caractérisé en ce que l'agencement (1) comprend, en outre, une unité de refroidissement et de chauffage actionnée électriquement (8), qui est disposée à l'extérieur du boîtier (6) pour fournir un milieu de transfert de chaleur refroidi ou chauffé, ainsi qu'un échangeur thermique (10), qui est relié à cette unité de refroidissement et de chauffage par l'intermédiaire d'une conduite d'alimentation (12a) et d'une conduite de retour (12b) et est conçu pour être chargé par l'intermédiaire de la conduite d'alimentation (12a) avec un milieu de transfert de chaleur refroidi dans le cas d'un brûleur désactivé (5) et avec un milieu de transfert de chaleur chauffé dans le cas d'un brûleur activé (5), et caractérisé en ce que, en outre, un ventilateur (14) est contenu dans le boîtier (6), lequel ventilateur est conçu pour charger l'échangeur thermique (10) avec de l'air ambiant, dans lequel, après avoir traversé l'échangeur thermique (10), l'air ambiant est amené à des ouvertures de sortie d'air (16) qui sont disposées sur la face inférieure du boîtier (6).
PCT/EP2024/051257 2023-03-07 2024-01-19 Dispositif de refroidissement ou de chauffage de bâtiments Pending WO2024183976A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102023000864.8 2023-03-07
DE102023000864 2023-03-07
DE102023109124.7 2023-04-12
DE102023109124.7A DE102023109124A1 (de) 2023-03-07 2023-04-12 Anordnung zum wahlweisen Kühlen oder Beheizen von Gebäuden

Publications (1)

Publication Number Publication Date
WO2024183976A1 true WO2024183976A1 (fr) 2024-09-12

Family

ID=89853420

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2024/051257 Pending WO2024183976A1 (fr) 2023-03-07 2024-01-19 Dispositif de refroidissement ou de chauffage de bâtiments

Country Status (1)

Country Link
WO (1) WO2024183976A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007047661A1 (de) 2007-09-18 2009-03-26 Kübler Gmbh Verfahren und Anordnung zum Beheizen von Gebäuden mit einer Infrarot-Heizung
ES2440967T3 (es) * 2011-02-28 2014-01-31 Gogas Goch Gmbh & Co Sistema para calentar un recinto
EP3239616A1 (fr) * 2016-04-29 2017-11-01 Kübler GmbH Dispositif de chauffage infrarouge destiné à chauffer un bâtiment et procédé de chauffage d'un bâtiment faisant appel à un tel dispositif de chauffage infrarouge
EP3327360B1 (fr) * 2016-11-24 2019-07-31 SYSTEMA S.p.A, . Équipement combiné pour le contrôle climatique d'environnements
WO2023025879A1 (fr) * 2021-08-27 2023-03-02 Kübler Gmbh Radiateur fixe à infrarouges

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007047661A1 (de) 2007-09-18 2009-03-26 Kübler Gmbh Verfahren und Anordnung zum Beheizen von Gebäuden mit einer Infrarot-Heizung
ES2440967T3 (es) * 2011-02-28 2014-01-31 Gogas Goch Gmbh & Co Sistema para calentar un recinto
EP3239616A1 (fr) * 2016-04-29 2017-11-01 Kübler GmbH Dispositif de chauffage infrarouge destiné à chauffer un bâtiment et procédé de chauffage d'un bâtiment faisant appel à un tel dispositif de chauffage infrarouge
EP3327360B1 (fr) * 2016-11-24 2019-07-31 SYSTEMA S.p.A, . Équipement combiné pour le contrôle climatique d'environnements
WO2023025879A1 (fr) * 2021-08-27 2023-03-02 Kübler Gmbh Radiateur fixe à infrarouges

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