US20150323216A1 - A heat exchanger and a ventilation assembly comprising it - Google Patents
A heat exchanger and a ventilation assembly comprising it Download PDFInfo
- Publication number
- US20150323216A1 US20150323216A1 US14/440,858 US201314440858A US2015323216A1 US 20150323216 A1 US20150323216 A1 US 20150323216A1 US 201314440858 A US201314440858 A US 201314440858A US 2015323216 A1 US2015323216 A1 US 2015323216A1
- Authority
- US
- United States
- Prior art keywords
- heat exchanger
- air
- channels
- drainage
- ventilation assembly
- 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.)
- Abandoned
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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
- F24F12/002—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an intermediate heat-transfer fluid
-
- 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
- F24F12/006—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an air-to-air heat exchanger
-
- 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
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
-
- 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
- F24F5/0035—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 using evaporation
-
- 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/14—Collecting or removing condensed and defrost water; Drip trays
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D5/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, using the cooling effect of natural or forced evaporation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F17/00—Removing ice or water from heat-exchange apparatus
- F28F17/005—Means for draining condensates from heat exchangers, e.g. from evaporators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
- F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
- F28F3/046—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element the deformations being linear, e.g. corrugations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
- F28D21/0014—Recuperative heat exchangers the heat being recuperated from waste air or from vapors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2245/00—Coatings; Surface treatments
- F28F2245/04—Coatings; Surface treatments hydrophobic
Abstract
A heat exchanger includes two sets of channels arranged adjacent to each other, for beat exchange between a first and a second air stream. Each of the sets of channels includes at least one transversal drainage channel for drainage of condensate, and a ventilation assembly including such a heat exchanger.
Description
- The present invention relates according to an aspect thereof to a heat exchanger comprising two sets of channels arranged adjacent, to each other for heat exchange between a first and a second air stream. The invention also relates according to an aspect thereof to a ventilation assembly.
- In order to obtain maximum heat recovery from outgoing in-house air when having a balanced housing ventilation most often heat exchangers are used having parallel, vertically arranged plates, e.g. made from thin plastic or aluminum, and wherein the heat exchanging surface is maximized by designing the plates with channels with outgoing in-house air (exhaust air) and incoming air from the outside (intake air) in counter-now. A usual geometry is a plate thickness of 0.1-0.5 mm, a distance between the plates 1.5-5 mm and a channel width (channel height) of 2-5 mm.
- When the outside temperature is substantially lower than the room temperature the moisture of the room air will condense in the exhaust air channels of the heat exchanger and will sometimes cause clogging of water droplets resulting in an increase of the air resistance at the exhaust air side of the heat exchanger. At outside temperatures below −2° to −4° C. the condensate will freeze in the room air channels of the heat exchanger so that efficiency deteriorating measures have to be taken, such as introducing additional electric heating in the heat exchanger.
- During winter time the outside air contain in absolute numbers (grams water/kilogram, air) very little moisture, which results in that the indoor climate will be dry. Moistening of the heated air will lower its temperature, which means either a too low blowing-in temperature with supply of heat of vaporization from the room air, or in that the supply air has to be post-heated before blowing it into the room. The problem with too dry air during the winter time is advantageously solved by integrating an aerosol generator in order to increase the moisture content of the supply air in the construction with the technique that is described in the Swedish patent No. SE 534 398 C2.
- In the summer time, when sometimes there is a need of cooling, the heat exchanger may give an undesired heating of the intake air through heat transfer from warm exhaust air, which has been heated by people and equipment indoors. A frequent solution to this problem is to arrange a thermostatically or manually operated by-pass channel for the exhaust air, internally in the ventilation assembly or as an addition to the assembly. This will, however, result in a more complicated and thus more bulky and mote cost demanding construction, while at the same time the need for occasional cooling of the intake air, if the temperature outside is high, remains. Further, during certain temperature and moisture conditions a clogging of water droplets might occur on the intake air side of the heat exchanger with accompanying increase of the air resistance.
- Thus, there is a desire to provide a heat exchanger and a ventilation assembly lacking the above drawbacks, not least regarding the undesired increase of the air resistance.
- According to an aspect of the invention, an exchanger is characterized, in that each of the sets of channels comprise at least one cross-directional drainage channel for draining off condensate.
- A ventilation assembly can comprise a heat exchanger according to the above.
- The invention will now be described with reference to the accompany in g drawings, on which;
-
FIG. 1A shows a partly cut up view in perspective of a heat exchanger according to one embodiment of the invention; -
FIG. 1B shows a view corresponding to the view inFIG. 1A of a second embodiment of the heat exchanger according to the invention; -
FIG. 2 shows a cross-sectional view along a horizontal plane through a pan of the heat exchanger; -
FIG. 3A shows a partly cut up view of the heat exchanger according to the invention; -
FIG. 3B shows a view corresponding to the view inFIG. 3A of one detail of the heat exchanger; and -
FIG. 4 shows a principal outline of a ventilation assembly according to the invention. -
FIG. 1A shows a first embodiment of aheat exchanger 25, which comprises a number ofpleated plates 1, which are mounted betweensmooth plates 2. Thepleated plates 1 can in principal also be comprised of a larger number of thin ribs, being arranged to form an angle in relation to each other, in order to build up the pleated structure. Hereby are formed two sets ofadjacent channels - The
pleated plate 1 has according to a preferred, embodiment of the invention at least one flattening 26 formingdrainage channels 4 for condensation water, one on each side of the flattening 26, for the two sets ofchannels drainage channels 4 might have varying designs, having in common that the two sets ofchannels - The object of the
drainage channels 4 is that condensed moisture from the respective air stream shall be led from thechannels respective drainage channel 4, and flow to acollecting vessel 19. Thedrainage channels 4 are therefore advantageously upright, preferably substantially vertical, while thechannels channels drainage channels 4. When the condensate droplets arrive at some of thedrainage channels 4 they will flow downwards along the flattening 26 or some of the other walls in thedrainage channel 4, and finally be guided down into a collecting vessel 19 (seeFIG. 4 ), Condensate will fall out both in contact with the walls of thechannels drainage channels 4, but irrespective of where the condensation takes place, the condensate shall be guided to thecollecting vessel 19. -
FIG. 1B shows a second embodiment of the invention withplates 1 with pleats or cavities, mounted in such a way that channels 5 for outgoing room air and 6 for incoming outside air lying adjacent to each other are formed between the plates. Theplates 1 according to the invention shown here also have a flattening 4 forming vertical drainage channels for condensed water. The pleated plate orplates 1 are surrounded by external,smooth plates 2, which are not shown inFIG. 1B . -
FIG. 2 shows a cross section in a horizontal plane through, the area around theflattening 4 and shows how the room air (exhaust air) 5A, and the incoming outside air (intake air) 6A in counter flow are fed on either side of theflattened part 26 of theheat exchanger plate 1. For the sake of clarity it should be noted that the twoair streams air streams - However, a transfer of heat can take place from one of the
air streams 5A to the other 6A, through the thin walls of thepleated plate 1, which are manufactured in such a material and with such a thickness that heat transfer is favored. -
FIG. 3 A shows a planar view of the room air side (exhaust air side) of aheat exchanger plate 1. The upper andlower edges channels plate 1 form an angle in relation to a horizontal plane, so that condensate in thechannels flattened parts 26, being parts of thedrainage channels heat exchanger plates 1 are sealed against the surroundings, in thelower edge 27 on the room air side there is a water collecting channel 9 with an outlet opening 10 between the plates, and on the intake side there is a correspondingwater collecting channel 11 with an outlet opening 12 between theplates 1. Theoutlet openings transversal collecting channels lower edge 27 of theplate 1 and finally out through, achannel 13. -
FIG. 3B shows a corresponding detail of the intake side with achannel 11 for water collecting and achannel 14, which are separate from corresponding details of the exhaust side in order to guarantee that theair streams - With this suggested design of the heat exchanger plates the condense water of the room air will be removed from the air channels before the water reaches zones where there is a risk that the water freezes.
- The
heat exchanger plates 1 have completely or partly been given a hydrophobic surface structure, which facilitates the drainage, since the adherence of the condensed water to the surfaces decreases, and in that droplets are more easily formed. The surface of the condensed water towards the surrounding air is also reduced and the risk for the condensed water to vaporize anew is reduced, which in turn leads to a more efficient dehumidification of theair streams vertical drainage channels 4 for leading away of the condensed water, in that way the need of additional heating in the beat exchanger can be avoided completely or partly and the total efficiency of the heat exchanger will be higher. - The hydrophobic surface structure can be achieved in a number of different ways. One way is to give the surface a nanostructure by coating the surfaces with a suitable agent. For plastic surfaces it could be an agent containing silicon compounds so that silicon crystals are formed, which clog microscopic pores which could exist in the surface of a plastic material. Another way to achieve a nanostructure is to emboss it in the surface during the manufacture of the walls of the
channels -
FIG. 4 shows a cross-section (principal view) of aventilation assembly 28 according to the invention, whereinheat exchanger plates 1 according to the above are comprised. The room air (exhaust air) 5A is filtered in thefilter 15 and the incoming outside air (intake air) in thefilter 16. - Condensed water from the
exhaust air 5A is collected in thechannel 13 and any condensate from theoutside air 6A (in a warm, moist climate) is collected in thechannel 14. From thechannels hoses water vessel 19 that air passage between thepipes - The
vessel 19 is assembled with awater vessel 20 in which are arrangedpiezoelectric ultrasound generators ultrasound generators collector 23 can, according to the Swedish patent No. SE 534 398 C2, be conducted to theintake air inlet 29 or the heat,exchanger 25 between theheat exchanger 25 and afilter 16, wherein the aerosol with the aid of thecold air stream 6A is transported into theheat exchanger 25 in order to be able to be evaporated therein with the aid of heat from theexhaust air 5A. - In the
ventilation assembly 28 according to an aspect of the invention is optionally also used an evaporative cooling of theexhaust air 5A by supplying a water aerosol to theexhaust air 5A between theheat exchanger 25 and afilter 15. The object of this is to accomplish drainage of heat from toohot intake air 6A, for example during the summer months. In addition to the reduction of theintake air 6A temperature, also its humidity can be lowered by the deposit of condensate on the inner surfaces of thechannels 6 and which is led from theheat exchanger 25 and down into the collectingvessel 19 in the above described way - The aerosol from the
ultrasound generators exhaust air inlet 30 by change-over of acontrol valve 24, wherein it is evaporated and accordingly cools down, theexhaust air 5A flowing into theheat exchanger 25. - With a
ventilation assembly 28 according to an aspect of the invention the problem with too dry air is avoided during wintertime by the integration of the ultrasound,generators intake air 6A, in the construction with the technology described in the Swedish patent No. SE 534 398 C2. - Novel features of the
ventilation assembly 28 according to an aspect of the invention, include that theultrasound generators exhaust air 5A with the evaporation heat taken from the condensation heat of the exhaust air. Condensate in thechannels drainage channels 4, and clogging of the channels because of water droplets, or freezing of the condensate in thechannels - In one
connection part 7A the room air (exhaust air) 5A corning to theheat exchanger 25 is distributed over all the channels of theheat exchanger plate 1 on its front side to be conducted through these to theopposite connection part 7B. Incoming outside air (intake air) 6A is distributed to the channels on the backside of the plate and is conducted out in theconnection part 7A. Theconnection parts room air 5A flowing in to and outsideair 6A flowing out from theheat exchanger 25 exchange heat in cross flow like theroom air 5A flowing out and theoutside air 6A flowing in. - If condensate has formed in the
room air channels 5 it will flow down onto the flattenedpart 26 or theheat exchanger plate 1 and will thus not be transported further to colder parts of the heat exchanger plate. If continued condensation occurs at the further transport of room air towards theconnection part 7B, this condensed water can be drained inseveral drainage channels heat exchanger plates 1, this condensed water can be drained in the corresponding way. - The condensed water in the
channels 4 can on the room air side freely flow out through theopening 10 down into thetransversal collecting channel 13. During summertime, at evaporative cooling of theexhaust air 5A, moisture in the incomingoutside air 6A condenses on the intake air side of theheat exchanger plates 1 and there it flows out through theopening 12, and down into thetransversal collecting channel 14. - Discharge of condensed water down, into the
channels 4 is facilitated if the surface of theheat exchanger plate 1, especially at thechannels 4 have hydrophobic properties, e.g. with the aid of nanotechnology, as has been discussed above. Quicker and more complete drainage of condensed water front allair channels heat exchanger plate 1 is facilitated if the wholeheat exchanger plate 1 has corresponding hydrophobic properties. Tests have proven that the drainage from theheat exchanger plates 1 can be further improved it theplates 1 can be vibrated with aerodynamic or mechanical appliances.
Claims (10)
1. A heat exchanger comprising two sets of channels arranged adjacent to each other for heat exchange between a first and a second air stream, wherein each of the sets of channels comprise at least one transversal drainage channel for drainage of condensate.
2. The heat exchanger according to claim 1 , wherein the drainage channels are substantially vertical.
3. The heat exchanger according to claim 1 , wherein the channels have inside surfaces with a hydrophobic surface layer.
4. The heat exchanger according to claim 3 , wherein the surface layer has a nanostructure.
5. The heat exchanger according to claim 1 , wherein each set of channels for the air streams form an angle with the horizontal plane of 0 to 30°.
6. The heat exchanger according to claim 1 , wherein the drainage channels are connected to a collecting vessel.
7. A ventilation assembly comprising a heat exchanger according to claim 1 .
8. The ventilation assembly according to claim 7 , wherein the first and the second air streams are intake air and exhaust air, respectively, and in that means are arranged for evaporative cooling of the exhaust air before it is led into the channels of the heat exchanger.
9. The ventilation assembly according to claim 7 , wherein means are arranged for shifting between evaporative cooling of the intake air and the exhaust air, respectively.
10. The ventilation assembly according to claim 7 , wherein a mist generator is arranged in order to obtain the evaporative cooling.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE1251263-8 | 2012-11-07 | ||
SE1251263A SE538217C2 (en) | 2012-11-07 | 2012-11-07 | Heat exchangers and ventilation units including this |
PCT/SE2013/051315 WO2014074063A1 (en) | 2012-11-07 | 2013-11-07 | A heat exchanger and a ventilation assembly comprising it |
Publications (1)
Publication Number | Publication Date |
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US20150323216A1 true US20150323216A1 (en) | 2015-11-12 |
Family
ID=50685340
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/440,858 Abandoned US20150323216A1 (en) | 2012-11-07 | 2013-11-07 | A heat exchanger and a ventilation assembly comprising it |
Country Status (4)
Country | Link |
---|---|
US (1) | US20150323216A1 (en) |
EP (1) | EP2920539B1 (en) |
SE (1) | SE538217C2 (en) |
WO (1) | WO2014074063A1 (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105716211A (en) * | 2016-02-17 | 2016-06-29 | 中山浩发节能科技有限公司 | General-purpose type air conditioner energy-saving exchange device |
US20160187008A1 (en) * | 2012-06-11 | 2016-06-30 | 7Ac Technologies, Inc. | Methods and systems for turbulent, corrosion resistant heat exchangers |
US10006648B2 (en) | 2010-05-25 | 2018-06-26 | 7Ac Technologies, Inc. | Methods and systems for desiccant air conditioning |
US10024601B2 (en) | 2012-12-04 | 2018-07-17 | 7Ac Technologies, Inc. | Methods and systems for cooling buildings with large heat loads using desiccant chillers |
US10024558B2 (en) | 2014-11-21 | 2018-07-17 | 7Ac Technologies, Inc. | Methods and systems for mini-split liquid desiccant air conditioning |
US10323867B2 (en) | 2014-03-20 | 2019-06-18 | 7Ac Technologies, Inc. | Rooftop liquid desiccant systems and methods |
US10619868B2 (en) | 2013-06-12 | 2020-04-14 | 7Ac Technologies, Inc. | In-ceiling liquid desiccant air conditioning system |
US10619867B2 (en) | 2013-03-14 | 2020-04-14 | 7Ac Technologies, Inc. | Methods and systems for mini-split liquid desiccant air conditioning |
US10760830B2 (en) | 2013-03-01 | 2020-09-01 | 7Ac Technologies, Inc. | Desiccant air conditioning methods and systems |
US10921001B2 (en) | 2017-11-01 | 2021-02-16 | 7Ac Technologies, Inc. | Methods and apparatus for uniform distribution of liquid desiccant in membrane modules in liquid desiccant air-conditioning systems |
US10941948B2 (en) | 2017-11-01 | 2021-03-09 | 7Ac Technologies, Inc. | Tank system for liquid desiccant air conditioning system |
US10962294B2 (en) * | 2018-12-07 | 2021-03-30 | Hamilton Sundstrand Corporation | Dual pass heat exchanger with drain system |
US11022330B2 (en) | 2018-05-18 | 2021-06-01 | Emerson Climate Technologies, Inc. | Three-way heat exchangers for liquid desiccant air-conditioning systems and methods of manufacture |
KR20230112993A (en) * | 2022-01-21 | 2023-07-28 | 주식회사 조은바람 | Total heat exchanger with heat exchange ball |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3146279A4 (en) * | 2014-05-13 | 2018-02-14 | Klaas Visser | Improved evaporative condenser |
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2012
- 2012-11-07 SE SE1251263A patent/SE538217C2/en not_active IP Right Cessation
-
2013
- 2013-11-07 WO PCT/SE2013/051315 patent/WO2014074063A1/en active Application Filing
- 2013-11-07 US US14/440,858 patent/US20150323216A1/en not_active Abandoned
- 2013-11-07 EP EP13853872.3A patent/EP2920539B1/en active Active
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JP2008261562A (en) * | 2007-04-12 | 2008-10-30 | Matsushita Electric Ind Co Ltd | Heating element storage box cooling device |
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Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10168056B2 (en) | 2010-05-25 | 2019-01-01 | 7Ac Technologies, Inc. | Desiccant air conditioning methods and systems using evaporative chiller |
US10006648B2 (en) | 2010-05-25 | 2018-06-26 | 7Ac Technologies, Inc. | Methods and systems for desiccant air conditioning |
US10753624B2 (en) | 2010-05-25 | 2020-08-25 | 7Ac Technologies, Inc. | Desiccant air conditioning methods and systems using evaporative chiller |
US11624517B2 (en) | 2010-05-25 | 2023-04-11 | Emerson Climate Technologies, Inc. | Liquid desiccant air conditioning systems and methods |
US10443868B2 (en) | 2012-06-11 | 2019-10-15 | 7Ac Technologies, Inc. | Methods and systems for turbulent, corrosion resistant heat exchangers |
US9835340B2 (en) * | 2012-06-11 | 2017-12-05 | 7Ac Technologies, Inc. | Methods and systems for turbulent, corrosion resistant heat exchangers |
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Also Published As
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SE538217C2 (en) | 2016-04-05 |
EP2920539B1 (en) | 2019-10-30 |
SE1251263A1 (en) | 2014-05-08 |
WO2014074063A1 (en) | 2014-05-15 |
EP2920539A1 (en) | 2015-09-23 |
EP2920539A4 (en) | 2016-09-07 |
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