EP3696467A1 - Luftaufbereitungsanlage und verfahren zur aufbereitung von zuluft - Google Patents

Luftaufbereitungsanlage und verfahren zur aufbereitung von zuluft Download PDF

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Publication number
EP3696467A1
EP3696467A1 EP19156665.2A EP19156665A EP3696467A1 EP 3696467 A1 EP3696467 A1 EP 3696467A1 EP 19156665 A EP19156665 A EP 19156665A EP 3696467 A1 EP3696467 A1 EP 3696467A1
Authority
EP
European Patent Office
Prior art keywords
air
room
extraction
chamber
supply device
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
EP19156665.2A
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English (en)
French (fr)
Inventor
Dominique Bense
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP19156665.2A priority Critical patent/EP3696467A1/de
Priority to US17/430,421 priority patent/US20220107111A1/en
Priority to PCT/EP2020/053542 priority patent/WO2020165214A1/en
Priority to CN202080020537.8A priority patent/CN113710966A/zh
Publication of EP3696467A1 publication Critical patent/EP3696467A1/de
Pending 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
    • F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
    • F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
    • F24F1/0373—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing characterised by heating arrangements
    • F24F1/0378—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing characterised by heating arrangements using thermoelectric or thermomagnetic means, e.g. Peltier elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • 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
    • F24F5/0042—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 characterised by the application of thermo-electric units or the Peltier effect
    • 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
    • F24F5/0046—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 using natural energy, e.g. solar energy, energy from the ground
    • F24F2005/0064—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 using natural energy, e.g. solar energy, energy from the ground using solar energy
    • F24F2005/0067—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 using natural energy, e.g. solar energy, energy from the ground using solar energy with photovoltaic panels

Definitions

  • the present invention relates to an air treatment systems and methods.
  • HVAC heating, ventilating, and air conditioning
  • HVAC is a technology for indoor environmental comfort. Its goal is to provide thermal comfort and acceptable indoor air quality.
  • HVAC system design is a sub-discipline of mechanical engineering, based on the principles of thermodynamics, fluid mechanics, and heat transfer. Refrigeration is sometimes added to the abbreviation as HVAC&R or HVACR, or ventilating is dropped out as in HACR (such as in the designation of HACR-rated circuit breakers). HVAC is important in indoor design where safe and healthy building conditions are regulated with respect to temperature and humidity, using fresh air from outdoors.
  • Ventilating is the process of changing or replacing air in any space to provide high indoor air quality, for example to control temperature, replenish oxygen, or remove moisture, odors, smoke, heat, dust, airborne bacteria, and carbon dioxide. Ventilation is used to remove unpleasant smells and excessive moisture, introduce outside air, to keep interior building air circulating, and to prevent stagnation of the interior air. Ventilation includes both the exchange of air to the outside as well as circulation of air within the building. It is one of the most important factors for maintaining acceptable indoor air quality in buildings. Methods for ventilating a building may be divided into mechanical or forced and natural types.
  • Air condition is the process of altering the properties of air within a space to desired conditions, those properties primarily being temperature and humidity.
  • the aim is typically to distribute conditioned air into a space to improve the thermal comfort (lowering or raising the temperature) and air quality.
  • the current single room air conditioners for environments are typically arranged into or on the ceiling of an air-conditioned room.
  • a heat exchanger or radiator in which heat exchanging medium (e.g. hot or cold water) is arranged to circulate in a coil covered by lamellas or fins that distribute the incoming air evenly into the heat exchanger.
  • the heat exchanger may be arranged into a frame, and it is typically covered by detachable cover panel, which can be removed for cleaning the air conditioner.
  • Filters are used in some installations to prevent the heat exchanger from clogging. Secondary filters are used in some installations to ensure the quality of air re-entering the space.
  • Fans or induction of fresh air are used to circulate the air in and out of the air conditioner.
  • an air conditioning system for conditioning room air comprises an air supply device having an extraction air chamber, into which room extraction air from the room is introduced, and a power source for powering the air supply device.
  • the air supply device comprises at least one peltier-element having a first side arranged to condition at least part of the room extraction air before it being diffused into the room.
  • the advantage of the system is that system needs simpler infrastructure, i.e. pipes to carry heat exchange medium to a heat exchanger or radiator in which heat exchange medium is circulated, or boilers or refrigerant units to treat the heat exchange medium.
  • the air supply device comprises outdoor air chamber for receiving outdoor air.
  • a second side of the peltier-element is arranged to be treated with the outdoor air of the outdoor air chamber.
  • the air supply device comprises a middle chamber arranged to receive part of the room extraction air from the extraction air chamber.
  • the middle chamber comprises an extraction air outlet arranged to extract the room extraction air from the air supply device.
  • the extraction outlet comprises adjusting means for adjusting the extraction air flow from the air supply device.
  • the middle chamber and the outdoor air chamber are connected to each other by a conduit for introducing room extraction air into the outdoor air chamber.
  • a second adjusting means are provided within the conduit for adjusting the room extraction air flow from the middle chamber into the outdoor air chamber.
  • the second side of the peltier-element is arranged to be treated by the combination of the outdoor air and the room extraction air in the outdoor air chamber.
  • the power source is a photovoltaic panel.
  • the air supply device comprises a fresh air chamber from which fresh air is supplied into the room, and a fresh air inlet for receiving fresh supply air into the fresh air chamber.
  • the present invention provides a method for conditioning room air with an air conditioning system comprising steps of receiving room extraction air from a room into an extraction air chamber of the air supply device, conditioning at least part of the room extraction air by a first side of at least one peltier-element, and diffusing the conditioned room extraction air into the room.
  • the method comprises a step of treating a second side of the peltier-element with circulated an outdoor air flow.
  • the method comprises a step of combining part of the room extraction air, which is not diffused into the room, with the outdoor air flow.
  • the method comprises steps of receiving fresh supply air into an air supply device, and supplying supply air into the room.
  • Term “condiditon” or “conditioning air” refers to treatment of air, i.e. heating or cooling the air.
  • An air supply device refers to device which diffuses air into a space, e.g. a room. The diffused air may be circulated room air or it may be partially fresh supply air for example from outdoors.
  • Term “outdoor air” refers to outdoor air, which is used for treating (heating or cooling) a second side of a peltier-element and which outdoor air is not supplied into the room.
  • “Fresh air” refers to fresh outdoor air, which is supplied into the room.
  • Term “room extraction air” refers to air that is introduced into the air supply device from the room. It may be partly or completely diffused back into the room or it may be partly or completely extracted outdoors.
  • FIG. 1 shows an air conditioning system comprising an air supply device 1 for conditioning (heating or cooling) room air.
  • the air supply device comprises an extraction air chamber 2, into which the extraction air from the room is introduced.
  • the room air is introduced into an extraction air chamber 2 through opening 7, which is arranged on a bottom wall of the extraction chamber 2.
  • the bottom wall is facing towards the room.
  • the opening 7 may have several small holes in the bottom wall of the extraction air chamber or it may be one big opening which may be covered by a mesh. Size and design of the opening 7 may vary from very small holes to a bigger opening, such as an elongated gap.
  • the opening 7 may also act as a filter, which is arranged to filter unwanted particles, dust etc. from the extraction air.
  • the air supply device 1 comprises at least one peltier-element 4 which is arrange to condition at least part of the room extraction air before it is diffused back into the room.
  • the number of peltier-elements 4 depends on the size of the air supply device and the efficiency of the used peltier-elements.
  • the air supply device comprises three peltier-elements 4 which are arranged in a row inside the air supply device. However, the number of the peltier-elements may vary.
  • the peltier-elements use the Peltier effect, which is explained later.
  • the extraction air chamber 2 and a first side of each of the peltier-elements 4 may be connected by passages, which conduct at least part of the room extraction air to the peltier-elements 4 to be conditioned. Further, the conditioned air may be conducted into a diffuse chamber 6 from which the conditioned air is diffused back into the room via a supply opening 5. As the opening 7, the supply opening may have different design and size. The supply opening may be for example an elongated gap, several small holes, or a big opening with a mesh.
  • the part of the room extraction air, which is not conditioned by the peltier-elements may be conducted to the extraction outlet and out of the device and, for example, outdoors.
  • the air conditioning system comprises a power source 3, which is needed to electrify the peltier-elements, and further, the air conditioning.
  • the power source may be the electric system of a building or it may be a power source that is separate from the building electricity.
  • the power source is a photovoltaic panel.
  • the air conditioning system may be independent from the buildings electric system. Thus, it is possible to assemble such system in a building or a structure that does not have electricity.
  • the extraction air chamber 2 may be divided in two sub-chambers by a wall 24, as seen in figure 2 .
  • a first sub-chamber 25 and a second sub-chamber 26 are arranged to receive part of the room extraction air through the openings 7, i.e. each of the sub-chambers covers part of the opening 7.
  • the first sub-chamber 25 is arranged to receive part of the room extraction air that is conditioned with the peltier-element 4
  • the second sub-chamber 26 is arranged to receive part of the room extraction air that is not conditioned with the peltier-element 4 but is conducted out of the extraction air chamber 2, e.g. outdoors.
  • the extraction of the extraction air may be controller more precisely.
  • Figure 2 shows an air conditioning system as in figure 1 .
  • the figure 1 is used to explain the air supply device on a first side of the peltier-element, i.e. how the room extraction air is conditioned and diffused back into the room.
  • Figure 2 is used to explain the air supply device on a second side of the peltier-element, i.e. how other side of the peltier-element is treated when the room extraction air is conditioned.
  • the air supply device 1 may comprise an outdoor air chamber 8. Outdoor air is received into the outdoor air chamber from an outdoor air inlet 9. The outdoor air is conducted to a second side of the peltier-elements 4, wherein the outdoor air is arranged to heat or cool the second side of the peltier-elemets 4. Further, the outdoor air may be conducted from the peltier-elements into an outdoor extraction chamber 23, from which the outdoor air may be conducted to the outdoor air outlet 17 and outside.
  • the first side and the second side of the peltier-elements are separated by a thermally insulated wall 22. Thus the cool and hot sides are separated and the peltier-element may work more efficiently.
  • Figure 3 shows an embodiment of the air conditioning system, wherein the air supply device 1 further comprises middle chamber 10.
  • the part of the room extraction air which is not conditioned and diffused into the room, is conducted from the extraction air chamber 2 into the middle chamber 10.
  • the middle chamber may comprise an extraction air outlet 11 through which the extraction air is extracted outside the air supply device and possibly further out of the building.
  • FIG 4 shows an embodiment of the air conditioning system wherein adjusting means 12 are provided within the extraction air outlet 11.
  • the adjusting means adjusts the extraction air flow from the air supply device.
  • the adjusting means may be rotatable plate arranged to rotate within the extraction air outlet so that the cross section of the extraction air outlet through which the extraction air is flown outside varies.
  • the adjusting means 12 may even close the extraction air outlet 11 completely so that no air is extracted outside of the air supply device.
  • the adjusting means may also be a ball valve.
  • the extraction air outlet is provided with the middle chamber 10. However, it is to be noted, that in embodiments, wherein middle chamber is not provided, the extraction air outlet is located on the wall of the extraction air chamber 8, as in figure 1 and 2 .
  • the middle chamber 10 and the outdoor air chamber 8 are connected to each other by a conduit 13.
  • the conduit 13 allows at least part of the extraction air to flow into the outdoor air chamber 8 and to mix with the outdoor air.
  • the mixed air is used to treat the second side of the peltier-elements as the outdoor air earlier.
  • the outdoor air may not be used as such.
  • the outdoor air may be too cold or too hot to treat the second side of the peltier-element and, thus, the first side of the peltier-element does not condition the room extraction air efficiently. Therefore, in some conditions, it is beneficial to mix at least some room extraction air into the outdoor air, to have more suitable air temperature for treating the second side of the peltier-element.
  • a second adjusting means 14 may be provided for adjusting the room extraction air flow from the middle chamber 10 into the outdoor air chamber 8.
  • the second adjusting means 14 may be a plate arranged to slide along the wall separating the middle chamber 10 and the outdoor air chamber 8. By sliding the plate, the size of the conduit 13 may be adjusted or even closed completely.
  • the second adjusting means 14 may also be a rotatable plate.
  • FIG. 5 shows an embodiment of the air conditioning system, wherein the air supply device 1 comprises a fresh air chamber 15. Further, a fresh air inlet 19 may be provided to receive fresh air into the fresh air chamber 15 of the air supply device 1. Further, the fresh air chamber comprises fresh air opening 16 for diffusing fresh air into the room.
  • the fresh air opening 16 may have many sizes and designs, as the supply opening 5.
  • the fresh air opening may be for example elongated gap or it may comprise several holes. It may also be an opening comprising a mesh, or such. It is obvious that living spaces, such as rooms, require fresh air.
  • the outdoor air outlet 17 comprises adjusting means 18 to adjust the outdoor air flow from the air supply device to the outside.
  • the adjusting means 18 may have similar design and structure as the adjusting means 12 in the room extraction air outlet 11.
  • the adjusting means 18 of the outdoor air outlet 17 is illustrated with the embodiment shown in figure 5 , it is obvious that such adjusting means may be provided with each of the above embodiments, which comprises outdoor air outlet.
  • Figure 6 shows an embodiment of the face of the air supply device 1 that is towards the room.
  • the face shows supply opening 5, room extraction air opening 7 and the fresh air opening 16, which at least are visible into the room.
  • the fresh supply air is diffused into the room via fresh air opening 6
  • the room extraction air is introduced into the air supply device 1 via extraction air opening 7, and the conditioned room extraction air is diffused back into the room via supply opening 5.
  • the size and the design of the openings (5, 7, 16) may vary. It is obvious that in embodiments, that do not comprise fresh air chamber, there is no fresh air opening 16. Therefore, in some embodiments only supply opening and the room extraction air opening are visible to the room.
  • the air supply device 1 may be installed inside the ceiling or it may be installed on the ceiling, i.e. surface installation. It may also be installed in the side wall of a room or even on the floor.
  • the air conditioning system described here uses the Peltier effect within modules making up the heat treatment elements.
  • DC electric current powers the semiconductors located between 2 plates and the assembly forms a peltier-element. This results in the negatively charged plate cooling and the other positively charged plate heating up.
  • the system is reversible by reversing the electric current.
  • Figure 7 shows a schematic drawing of a peltier-element comprising a first side 20 and a second side 21.
  • one of the sides 20 or 21 is heating and the other one is cooling.
  • the system is reversible and, therefore, the system may be used for cooling or heating the room extraction air on the first side 20 of the peltier-element before diffusing it back into the room.
  • the first side 20 and the second side 21 of the peltier-element and the respective chambers 6, 23, in which the conditioned or treated air is conducted, are separated by a thermally insulated wall 22.
  • the temperature difference achieved between the first side 20 and the second side 21 is limited. Therefore, in some conditions the outdoor air does is not cool enough or hot enough to treat the second side 21 of the peltier-element.
  • at least part of the room extraction air is mixed with the outdoor air for lowering or rising the temperature of the air that is used for treating the second side 21 of the peltier-element.
  • the peltier-element may comprise fans on each side 20, 21 of the peltier-element.
  • the fans may provide a better circulation of the air within the peltier-elements.
  • the peltier-elements may also comprise heat exchangers on both sides 20, 21 to more efficiently heating or cooling the airflows.

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  • 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)
  • Central Air Conditioning (AREA)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
EP19156665.2A 2019-02-12 2019-02-12 Luftaufbereitungsanlage und verfahren zur aufbereitung von zuluft Pending EP3696467A1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP19156665.2A EP3696467A1 (de) 2019-02-12 2019-02-12 Luftaufbereitungsanlage und verfahren zur aufbereitung von zuluft
US17/430,421 US20220107111A1 (en) 2019-02-12 2020-02-12 Air treatment system and method for treating supply air
PCT/EP2020/053542 WO2020165214A1 (en) 2019-02-12 2020-02-12 Air treatment system and method for treating supply air
CN202080020537.8A CN113710966A (zh) 2019-02-12 2020-02-12 空气处理系统和用于处理供应空气的方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19156665.2A EP3696467A1 (de) 2019-02-12 2019-02-12 Luftaufbereitungsanlage und verfahren zur aufbereitung von zuluft

Publications (1)

Publication Number Publication Date
EP3696467A1 true EP3696467A1 (de) 2020-08-19

Family

ID=65411818

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19156665.2A Pending EP3696467A1 (de) 2019-02-12 2019-02-12 Luftaufbereitungsanlage und verfahren zur aufbereitung von zuluft

Country Status (4)

Country Link
US (1) US20220107111A1 (de)
EP (1) EP3696467A1 (de)
CN (1) CN113710966A (de)
WO (1) WO2020165214A1 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006030901A1 (ja) * 2004-09-17 2006-03-23 Japan Exlan Company Limited 空調機
DE202007018397U1 (de) * 2007-04-12 2008-07-10 Rittal Gmbh & Co. Kg Thermoelektrische Temperiervorrichtung
DE102012208406A1 (de) * 2012-05-21 2013-11-21 P.R. Agentur für transparente Kommunikation GmbH Vorrichtung zum Heizen und/oder Kühlen eines Raums
JP6103914B2 (ja) * 2012-12-11 2017-03-29 株式会社三菱地所設計 太陽光を用いた空調システム。

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3040538A (en) * 1960-04-15 1962-06-26 Westinghouse Electric Corp Thermoelectric air conditioning unit
KR20010047243A (ko) * 1999-11-18 2001-06-15 심호택 열전소자를 이용한 에어컨 시스템
CN201240243Y (zh) * 2009-02-06 2009-05-20 淮阴工学院 汽车太阳能半导体空调风扇系统
CH703356A1 (de) * 2010-06-21 2011-12-30 Mentus Holding Ag Raumklimagerät.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006030901A1 (ja) * 2004-09-17 2006-03-23 Japan Exlan Company Limited 空調機
DE202007018397U1 (de) * 2007-04-12 2008-07-10 Rittal Gmbh & Co. Kg Thermoelektrische Temperiervorrichtung
DE102012208406A1 (de) * 2012-05-21 2013-11-21 P.R. Agentur für transparente Kommunikation GmbH Vorrichtung zum Heizen und/oder Kühlen eines Raums
JP6103914B2 (ja) * 2012-12-11 2017-03-29 株式会社三菱地所設計 太陽光を用いた空調システム。

Also Published As

Publication number Publication date
US20220107111A1 (en) 2022-04-07
CN113710966A (zh) 2021-11-26
WO2020165214A1 (en) 2020-08-20

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