WO2010025388A2 - Dispositif de refroidissement de système de conditionnement d’air - Google Patents

Dispositif de refroidissement de système de conditionnement d’air Download PDF

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Publication number
WO2010025388A2
WO2010025388A2 PCT/US2009/055399 US2009055399W WO2010025388A2 WO 2010025388 A2 WO2010025388 A2 WO 2010025388A2 US 2009055399 W US2009055399 W US 2009055399W WO 2010025388 A2 WO2010025388 A2 WO 2010025388A2
Authority
WO
WIPO (PCT)
Prior art keywords
water
cooling device
air conditioner
manifold
conditioner cabinet
Prior art date
Application number
PCT/US2009/055399
Other languages
English (en)
Other versions
WO2010025388A3 (fr
Inventor
Tuyen Vo
Original Assignee
Ac Research Labs
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 Ac Research Labs filed Critical Ac Research Labs
Priority to US13/061,504 priority Critical patent/US20110232859A1/en
Publication of WO2010025388A2 publication Critical patent/WO2010025388A2/fr
Publication of WO2010025388A3 publication Critical patent/WO2010025388A3/fr

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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
    • F24F5/0007—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 cooling apparatus specially adapted for use in air-conditioning
    • F24F5/001—Compression cycle type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00—Solar heat collectors using working fluids
    • F24S10/70—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits
    • F24S10/75—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits with enlarged surfaces, e.g. with protrusions or corrugations
    • F24S10/755—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits with enlarged surfaces, e.g. with protrusions or corrugations the conduits being otherwise bent, e.g. zig-zag
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/027—Condenser control arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/041—Details of condensers of evaporative condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/047—Water-cooled condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2106—Temperatures of fresh outdoor air
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/44—Heat exchange systems

Definitions

  • the present invention relates to a device for cooling condenser coils of an air conditioner system, where the condenser coils are located along with a compressor within a suitable housing. Cooling is made efficient by providing a manifold located adjacent to the housing for controllably carrying water and dispensing it through a set of nozzles, which create a mist of water droplets adjacent to side walls of the housing.
  • An air conditioning unit typically includes a cabinet located exterior to a building to be cooled, and is connected to the building's central heating and air conditioner system.
  • the cabinet serves as a condenser, and includes a housing enclosing a compressor operated as a pump and heat exchanging or condenser coils.
  • a heat absorbing fluid is directed through the coils, and expansion and contraction of the fluid serve to remove heat from the building's interior, which heat is discharged into ambient air exterior to the building through the coils.
  • a fan is typically included in the cabinet to move air across the coils in order to improve heat transfer.
  • Certain embodiments of the invention relate to a device for cooling condenser coils of an air conditioner system, such as one that is air-cooled.
  • the system includes a condenser that includes a compressor and the coils located within a housing.
  • the housing includes side walls joined at a seam to a top, and also includes a fan for expelling air from within the housing and causing air to be drawn through the side walls past heat exchanging fins located adjacent to the coils.
  • the device includes a manifold that is located adjacent to the seam for controllably carrying water and dispensing it through a set of nozzles, which create a mist of water droplets adjacent to the side walls.
  • the device also includes a preheater for heating water introduced into the manifold.
  • the configuration of the device allows effective separation of smaller water droplets from larger water droplets by gravitational force, and allows the smaller water droplets to be drawn into the condenser.
  • the device also includes a coding mechanism for selecting lengths of tubes extending between a loop portion of the manifold and the nozzles, according to particular climatic conditions.
  • the device further includes a set of sensors for controlling the dispensing of water through the nozzles, and the manifold is connected to the housing via an adjustable mechanism.
  • FIG. 1 illustrates a cooling device installed on an air conditioner cabinet located outside of a residence or a commercial building, according to an embodiment of the invention.
  • FIG. 2 illustrates a preheater for heating water carried and dispensed by a cooling device, according to an embodiment of the invention.
  • FIG. 3 illustrates a coding mechanism for selecting lengths of tubes based upon anticipated climactic conditions, according to an embodiment of the invention.
  • FIG. 4 illustrates a set of sensors for controlling the dispensing of water and a windscreen mechanism for reducing a wind sweeping effect, according to an embodiment of the invention.
  • the singular terms "a,” “an,” and “the” include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to an object can include multiple objects unless the context clearly dictates otherwise.
  • the term "set” refers to a collection of one or more objects. Thus, for example, a set of objects can include a single object or multiple objects. Objects that are part of a set also can be referred to as members of the set. Objects that are part of a set can be the same or different. In some instances, objects that are part of a set can share one or more common characteristics.
  • connection refers to an operational coupling or linking.
  • Connected objects can be directly coupled to one another or can be indirectly coupled to one another, such as via another set of objects.
  • adjacent refers to being near or adjoining. Adjacent objects can be spaced apart from one another or can be in actual or direct contact with one another. In some instances, adjacent objects can be connected to one another or can be formed integrally with one another.
  • the terms “substantially” and “substantial” refer to a considerable degree or extent. When used in conjunction with an event or circumstance, the terms can refer to instances in which the event or circumstance occurs precisely as well as instances in which the event or circumstance occurs to a close approximation, such as accounting for typical tolerance levels or variability of the embodiments described herein.
  • a size of an object that is a spherical can refer to a diameter of the object.
  • a size of the object can refer to an average of various orthogonal dimensions of the object.
  • a size of an object that is a spheroidal can refer to an average of a major axis and a minor axis of the object.
  • the objects can have a distribution of sizes around the specific size.
  • a size of a set of objects can refer to a typical size of a distribution of sizes, such as an average size, a median size, or a peak size.
  • FIG. 1 illustrates a cooling device 10 installed on an air conditioner cabinet 9 located outside of a residence or a commercial building, according to an embodiment of the invention.
  • the cabinet 9 serves as a condenser, and includes a housing 1 enclosing a compressor 52 and condenser coils 53, which are illustrated with dashed lines.
  • the housing 1 is provided with side walls 11 that are connected to a top 12 at a seam 13.
  • a fan 51 is also included within the housing 1 for expelling air through an opening 50 in the top 12. In doing so, air is drawn through the side walls 11 for cooling the condenser coils 53 located within the housing 1.
  • the cooling device 10 includes a manifold 14 that is wrapped adjacent to the seam 13 and is fed municipal water through a conduit 17, such as a tube or a water line that is connected to a conventional water outlet. Water passing through the manifold 14 is fed through a set of tubes 15 for dispensing the water through a set of nozzles 16, which create a mist of water droplets adjacent to the side walls 11.
  • the nozzles 16 are connected to respective ends of the tubes 15, which, in turn, are connected to a loop portion 2 of the manifold 14 via T-shaped joints 3.
  • the manifold 14 can be implemented in a number of other ways, such as with the tubes 15 directly connected to the loop portion 2 or formed integrally with the loop portion 2.
  • FIG. 1 illustrates a preheater 20 implemented in accordance with an embodiment of the invention.
  • FIG. 2 illustrates a preheater 20 implemented in accordance with an embodiment of the invention.
  • the preheater 20 can optionally include a mechanism to absorb thermal energy from a heat absorbing fluid or a hot refrigerant circulating in the condenser coils 53 as a heat source to heat the water.
  • the hot refrigerant which carries heat from inside the residence or the commercial building, can be tapped as a heat source to heat the water, without requiring the inclusion of another heat source.
  • Portion 23 can be implemented in a number of ways, such as including a blackened or dark straight tube or, as illustrated in FIG. 2, a blackened or dark coiled tube that is mounted on a blackened or dark plate 24.
  • heat from a heat absorbing fluid or a hot refrigerant within the compressor 52 also can be tapped as a heat source to heat the water by using a heat transfer jacket or a heat transfer plate mechanism.
  • Such a mechanism can be implemented in a similar manner as a water heating jacket or a hot plate, but with cooling and heating substances swapped, and this mechanism can be positioned at a thermally efficient and convenient place adjacent to the compressor 52.
  • an effective area of the preheater 20 to collect solar thermal energy is such as to provide between about 100 Watts ("W") to about 400 W of heating power for each gallon of water misting per hour (or for each 1.05 milliliter of water misting per second), which can elevate water temperature from at or below about 60 0 F as received from a conventional water outlet up to about 211 0 F, with a nominal temperature of about 125 0 F. Desirable resulting water temperatures can be in the range of about 122 0 F to about 140 0 F or about 120 0 F to about 140 0 F.
  • Heating the water can reduce the dynamic viscosity of the water passing through the portion 23 from about l.lxlO "3 Pascal-seconds ("Pa.s") at about 60 0 F to about 0.53* 10 ⁇ 3 Pa.s at about 125 0 F, or less if the water temperature is higher than 125 0 F.
  • the viscosity of the water can be reduced by at least a factor of about 2, such as at least a factor of about 2.1, at least a factor of about 2.2, or at least a factor of about 2.3, and up to a factor of about 3 or more.
  • Table 1 and Table 2 below set forth examples of resulting water temperatures and viscosities in accordance with various thermal energy inputs.
  • the resulting preheated water with reduced viscosity and at a typical household tap water pressure can be highly mobile and can be accelerated through the nozzles 16, where it is dispersed into fine droplets through micro-orifices normally configured to operate at pressures above about 100 psi and having sizes in the range of about 0.01 millimeter ("mm") to about 1 mm, such as from about 0.1 mm to about 0.5 mm or from about 0.1 mm to about 0.3 mm.
  • the dispersed water is a cross between a fog or a very fine mist, which would normally involve a high pressure pump to achieve, and a mist. This fog or mist is drawn into the side walls 11 to cool cooling fins adjacent to the condenser coils 53.
  • the manifold 14 and the orientations of the tubes 15 and the nozzles 16 are advantageously configured to serve as a sieve to allow smaller water droplets to be substantially separated from larger ones by gravity, and to allow the smaller water droplets to be drawn into the cabinet 9.
  • An optimal orientation of the tubes 15 can be pointing upwards and away from the ground for some implementations, and can be pointing downwards and towards the ground for other implementations.
  • the orientation of the tubes 15 is such that their angles ⁇ relative to a horizontal plane are in the range of about -25 degrees to about 70 degrees, such as from about -20 degrees to about 20 degrees, from about 20 degrees to about 60 degrees, or from about 30 degrees to about 50 degrees, where positive values denote an upward orientation, and negative values denote a downward orientation.
  • Ambient temperature and ambient humidity can affect the rate at which water droplets dispensed from the nozzles 16 evaporate and are reduced in size. Also, a sweep rate can be affected by the velocity of water droplets dispensed from the nozzles 16 and a suction created by the fan 51 within the cabinet 9.
  • another improvement of the illustrated embodiment is to select or optimize lengths of the tubes 15 so as to regulate sizes of water droplets that reach the cooling fins and the condenser coils 53, if at all, for various climatic conditions.
  • the illustrated embodiment allows a user to "fine tune" the lengths of the tubes 15, or, in other words, to set appropriate distances of the nozzles 16 from the condenser coils 53 to be cooled.
  • appropriate distances of the nozzles 16 from the side walls 11 are in the range of about 0.3 feet to about 3.5 feet, such as from about 0.3 feet to about 3 feet or from about 0.3 feet to about 2.5 feet, and appropriate sizes of water droplets to be drawn into or near the cabinet 9 are in the range of about 1 micrometer (" ⁇ m") to about 300 ⁇ m, such as from about 1 ⁇ m to about 100 ⁇ m, from about 1 ⁇ m to about 50 ⁇ m, or from about 1 ⁇ m to about 20 ⁇ m.
  • ⁇ m micrometer
  • larger water droplets can be substantially separated by gravity, and the larger water droplets can fall and become dissipated or spread out on the ground.
  • a surface area of the larger water droplets can be increased, and the larger water droplets can more readily evaporate and cool the surrounding air, thereby contributing to cooling efficiency while safeguarding the condenser coils 53 from scaling and corrosion.
  • Specific climactic conditions can affect an optimal distance or an optimal range of distances between the nozzles 16 and the condenser coils 53.
  • FIG. 3 illustrates a coding mechanism for selecting distances based upon anticipated climactic conditions, according to an embodiment of the invention.
  • a user can be provided with a menu card 37 broken down by climatic or geographical regions. For example, a first region with lower temperatures and higher humidity, such as Boston, can exhibit a prolonged evaporation process, relative to a second region with higher temperatures and lower humidity, such as Phoenix.
  • a larger distance or a larger range of distances can be provided between the nozzles 16 and the condenser coils 53 to compensate for the prolonged evaporation process.
  • a shorter distance or a shorter range of distances can be provided between the nozzles 16 and the condenser coils 53 according to the shortened evaporation process.
  • Climatic regions can be specified in a number of ways, such as according to the Bergeron classification, the K ⁇ ppen classification, or the Thornthwaite classification.
  • the tubes 15 can be marked with suitable indicia, such as using color-coded markings 31, 32, and 33, and can be sized at different lengths according to various regions as provided in the menu card 37. In such manner, the user can select appropriate ones of the tubes 15 to allow the nozzles 16 to be optimally spaced from the condenser coils 53.
  • the tubes 15 can be single sized to a length according to the marking 33 for use in Boston, and, during assembly or installation, the tubes 15 are then cut to a length according to the marking 32 for use in Northern California (where humidity is lower) and cut to a length according to the marking 31 for use in Phoenix (where humidity is lower and temperatures are elevated).
  • FIG. 4 illustrates a set of sensors 45 and 46 for controlling the dispensing of water, according to an embodiment of the invention.
  • an air conditioner system includes a cabinet 40, which is provided with side walls 41 and a top 42.
  • the top 42 has an opening 43 for exhausting air in the general direction of arrows 44.
  • the cabinet 40 serves as a condenser, and encloses a compressor and condenser coils (not illustrated) within the sides walls 41 and the top 42.
  • One mechanism to determine heat exchanger effectiveness is to measure the ambient temperature.
  • High ambient temperatures can reduce the heat exchanging capacity of the cabinet 40 with its surrounding air, and an elevated temperature of the compressor can be an indication that the compressor is overworked.
  • a cooling fog or mist can be effective at ambient temperatures at or above about 85 0 F.
  • a controller 47 controls the introduction of water, and is activated when the air conditioner system is operating and when the ambient temperature is at least a predetermined set point or a threshold value, such as in the range of about 85 0 F to about 90 0 F.
  • the controller 47 can avoid the adverse effect of starving a refrigerant expansion loop and running the air conditioner system inefficiently, while consuming water needlessly and possibly scaling cooling fins.
  • the controller 47 can be implemented in a number of ways, such as mechanical, electrical, pneumatic, hydraulic, electronic, or a combination thereof.
  • the controller 47 operates in conjunction with and is connected to the sensors 45 and 46.
  • the controller 47 and the sensors 45 and 46 are powered by a solar collector 60, which can be a solar panel including a set of photovoltaic cells, although it is contemplated that other power sources also can be used.
  • the sensor 45 serves to detect operation of the air conditioner system and the compressor within the cabinet 40, and includes a pressure sensitive plate or a flapper switch that is placed adjacent to the opening 43 to detect fan discharge. Unless fan discharge is detected, the controller 47 is not activated, and, regardless of ambient conditions, no cooling fog or mist is dispensed adjacent to the cabinet 40.
  • the sensor 46 serves to detect the ambient temperature and to determine if the ambient temperature is sufficiently elevated to justify dispensing a cooling fog or mist.
  • the sensor 46 can be implemented in a number of ways, and, for example, can include a thermocouple or another type of temperature sensor. If both of the sensors 45 and 46 have suitable indications, a valve within, or connected to, the controller 47 is activated accordingly, and a cooling fog or mist is dispensed adjacent to the cabinet 40. Alternatively, or in conjunction, a water temperature sensor can be optionally included to detect the temperature of water that passes through a preheater, such as previously described with reference to FIG. 2.
  • the water temperature is at least a predetermined set point or a threshold value, such as in the range of about 120 0 F to about 125 0 F, no cooling fog or mist is dispensed adjacent to the cabinet 40.
  • the threshold water temperature can be suitably adjusted according to various climatic conditions, and, for example, can be lowered for a climatic region with elevated temperatures.
  • FIG. 4 also illustrates a windscreen mechanism 61 for reducing an influence of wind and its sweeping effect on dispensed water droplets, according to an embodiment of the invention.
  • the windscreen mechanism 61 serves to avoid or reduce instances in which wind alters a direction of dispensed water droplets away from an optimal orientation, carries smaller water droplets away from the cabinet 40, or carries larger water droplets near or into the cabinet 40.
  • the windscreen mechanism 61 can be implemented in a number of ways, such as a lattice, a netting, or other types of windscreen materials, and can extend along at least a subset of the side walls 41 of the cabinet 40.
  • an adjustable mechanism 4 that allows the cooling device 10 to be readily mounted on air conditioner cabinets of various sizes.
  • the manifold 14 is maintained adjacent to the seam 13 between the side walls 11 and the top 12 by the adjustable mechanism 4, which secures the manifold 14 to appropriate guide rails.
  • the adjustable mechanism 4 can be implemented in a number of ways, and, for example, can include an adjustable lanyard line including an elastic band.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Dispersion Chemistry (AREA)
  • Sustainable Energy (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Central Air Conditioning (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

La présente invention concerne un dispositif servant à refroidir les serpentins de condenseur d’un système de conditionnement d’air, les serpentins de condenseur étant situés dans un boîtier approprié dans lequel se trouve également un compresseur. Le refroidissement est rendu efficace grâce à un collecteur situé adjacent au boîtier et permettant un transport contrôlé et une distribution de l’eau par l’intermédiaire d’un ensemble de buses, qui crée un brouillard de gouttelettes d’eau adjacent aux parois latérales du boîtier.
PCT/US2009/055399 2008-08-28 2009-08-28 Dispositif de refroidissement de système de conditionnement d’air WO2010025388A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/061,504 US20110232859A1 (en) 2008-08-28 2009-08-28 Air Conditioner Cooling Device

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US9266608P 2008-08-28 2008-08-28
US61/092,666 2008-08-28
US14283109P 2009-01-06 2009-01-06
US61/142,831 2009-01-06

Publications (2)

Publication Number Publication Date
WO2010025388A2 true WO2010025388A2 (fr) 2010-03-04
WO2010025388A3 WO2010025388A3 (fr) 2010-07-01

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PCT/US2009/055399 WO2010025388A2 (fr) 2008-08-28 2009-08-28 Dispositif de refroidissement de système de conditionnement d’air

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WO (1) WO2010025388A2 (fr)

Cited By (1)

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WO2012093944A1 (fr) * 2011-01-07 2012-07-12 Delacruz Moises A Procédé d'optimisation de vaporisation appliqué à des processus de refroidissement

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RU2614623C2 (ru) * 2015-03-13 2017-03-28 Общество С Ограниченной Ответственностью "Интехэнерго" Устройство для предварительного охлаждения воздуха в аппаратах воздушного охлаждения
CA2929141C (fr) 2015-05-08 2023-11-07 Bigz Tech Appareil de generation thermoelectrique destine a des conduits cvca
CN111089374A (zh) * 2019-12-19 2020-05-01 广东恒净建设工程有限公司 一种节能环保的工业空调

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