US20120171946A1 - Device and method for supplying a cooled airflow to at least one location for cooling - Google Patents
Device and method for supplying a cooled airflow to at least one location for cooling Download PDFInfo
- Publication number
- US20120171946A1 US20120171946A1 US13/393,510 US201013393510A US2012171946A1 US 20120171946 A1 US20120171946 A1 US 20120171946A1 US 201013393510 A US201013393510 A US 201013393510A US 2012171946 A1 US2012171946 A1 US 2012171946A1
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- United States
- Prior art keywords
- wall
- guide duct
- cooling
- location
- air
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F9/00—Use of air currents for screening, e.g. air curtains
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/62—Accessories for chairs
- A47C7/72—Adaptations for incorporating lamps, radio sets, bars, telephones, ventilation, heating or cooling arrangements or the like
- A47C7/74—Adaptations for incorporating lamps, radio sets, bars, telephones, ventilation, heating or cooling arrangements or the like for ventilation, heating or cooling
- A47C7/742—Adaptations for incorporating lamps, radio sets, bars, telephones, ventilation, heating or cooling arrangements or the like for ventilation, heating or cooling for ventilating or cooling
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- 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
- F24F1/04—Arrangements for portability
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- 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
- F24F13/02—Ducting arrangements
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
Definitions
- the present invention relates to a device for supplying a cooled airflow to at least one location for cooling.
- the present invention also relates to supplying a cooled airflow to at least one location for cooling using such a device.
- the device comprises a cooling unit for generating a cooled airflow; and a guide duct for guiding the cooled airflow from the cooling unit to the at least one location for cooling, wherein substantially the whole wall of the guide duct is permeable to the air of the cooled airflow, an outflow part of the wall of the guide duct has a first air permeability, and a guide part of the wall has a second air permeability, wherein the outflow part of the wall can be placed close to the at least one location for cooling and the air permeability of the outflow part of the wall is higher than the air permeability of the guide part of the wall.
- This device makes it possible, by means of the placing of the outflow part of the wall of the guide duct close to a specific location for cooling within a space, for instance a bed or a workplace, to concentrate the cooled airflow on this specific location.
- This makes the device according to the invention energy-efficient compared to a device with a supplied airflow which cannot be concentrated on the specific location.
- it is possible here to avoid undesirable effects of the guiding of the cooled airflow through the guide duct, such as condensation on the wall of the guide duct.
- condensation can for instance reduce comfort when the condensation falls from the wall onto the bed, the workplace, or even onto the persons making use thereof.
- Such condensation is a problem particularly in regions with a relatively high air humidity.
- the outflow part of the wall of the guide duct can be placed above the at least one location for cooling.
- This measure makes it possible to use gravitational force to allow the relatively cold air to move downward to the location for cooling and the persons making use thereof.
- the temperature of the cooled airflow is at least 2° C. lower than the temperature of the ambient air.
- the temperature of the cooled airflow which is at least 2° C. lower relative to the temperature of the ambient air ensures that the cooled air moves downward to the location for cooling by means of gravitational force, wherein the person making use of the location experiences a pleasant cooling without draught.
- the outflow part of the wall of the guide duct can be placed above the at least one location for cooling
- the outflow part of the wall of the guide duct can be placed at a distance of preferably between 100-300 cm, more preferably between 150-250 cm, and still more preferably substantially 200 cm above the at least one location for cooling.
- This distance of for instance 100, 125, 150, 175, 200, 225, 250, 275, 300 cm is found to enable a good distribution of the cooled airflow over the location for cooling, while in respect of its height the device is also suitable for placing in an existing space.
- the device in a further embodiment of the device according to the invention, wherein the outflow part of the wall of the guide duct can be placed above the at least one location for cooling, also comprises a frame with which the outflow part of the wall of the guide duct can be placed above the at least one location for cooling.
- This measure for instance enables simple placing of the device above the desired location for cooling.
- the device can thus be embodied for instance as a displaceable unit which can be easily placed in an existing space in order to supply cooled air to a specific location in this space.
- the guide duct is suspended in the frame by means of a mounting extending between the guide duct and the frame.
- a mounting extending between the guide duct and the frame.
- the mounting has a substantially airtight part extending from the wall of the guide duct over a distance of preferably at least 10 cm, more preferably at least 20 cm, and still more preferably at least 30 cm in the direction of the frame.
- This measure for instance makes it possible, when a relatively cold airflow is supplied to a location for cooling, to avoid warm air present above the outflow part of the guide duct being entrained by the airflow.
- the efficiency of the device can hereby be further improved, this making the device more energy-efficient.
- the cooling unit comprises a suction mouthpiece for drawing in an airflow for cooling, which suction mouthpiece can be placed under the outflow part of the wall of the guide duct.
- the wall of the guide duct is of textile. This measure makes it possible for the airflow to leave the guide duct almost silently, thereby maintaining the comfort of the person making use of the location.
- the outflow speed of the air of the cooled airflow from the outflow part of the wall of the guide duct is preferably between 0.04-0.12 m/s, more preferably between 0.06-0.10 m/s, and still more preferably substantially 0.08 m/s.
- These outflow speeds of for instance 0.04; 0.05; 0.06; 0.07; 0.08; 0.09; 0.10; 0.11 and 0.12 m/s, together with the acceleration exerted on the cooled air by gravitational force, ensures that the speed of the airflow is so low when it reaches a person making use of the location for cooling that this person experiences a comfort-enhancing cooling without the airflow being perceived here as draughty.
- the air permeability of the outflow part of the wall is preferably between 200-1400 m 3 /m 2 /hour at a static pressure of 120 Pa, more preferably between 400-1200 m 3 /m 2 /hour and still more preferably between 600-1000 m 3 /m 2 /hour.
- This air permeability of the outflow part of the wall of the guide duct of for instance 200, 300, 400, 500, 600, 700, 800, 900, 1000, 1100, 1200, 1300, 1440 m 3 /m 2 /hour at a static pressure of 120 Pa has been found highly suitable for realizing a comfort-enhancing device, and particularly for realizing the above stated outflow speeds of the air of the airflow flowing out of the outflow part of the guide duct.
- the air permeability of the rest of the wall is preferably between 10-80 m 3 /m 2 /hour at a static pressure of 120 Pa, more preferably between 15-70 m 3 /m 2 /hour and still more preferably between 20-60 m 3 /m 2 /hour.
- This air permeability of the rest of the wall of the guide duct of for instance 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70 m 3 /m 2 /hour at a static pressure of 120 Pa has been found highly suitable for effectively avoiding condensation on the wall of the guide duct.
- the invention also relates to a method for supplying a cooled airflow to at least one location for cooling using an above described device.
- a favourable embodiment of the method according to the invention comprises the step of placing the outflow part of the wall of the air-permeable guide duct above the at least one location.
- FIG. 1 shows a perspective view of an embodiment of a device according to the invention
- FIG. 2 shows a perspective view of an alternative embodiment of the device of FIG. 1 ;
- FIG. 3 shows a perspective view of the application of the device of FIG. 2 for supplying a cooled airflow to a workplace for cooling;
- FIG. 4 shows a schematic view of the operation of an embodiment of the device according to the invention.
- FIGS. 5 a and 5 b show a schematic cross-sectional view of an embodiment of the guide duct of the device of FIG. 4 ;
- FIGS. 6 a and 6 b show a schematic cross-sectional view of an alternative embodiment of the guide duct of FIGS. 5 a and 5 b.
- FIG. 1 shows a device 1 for supplying an airflow to a location 2 for cooling.
- a cooling unit 3 which supports on ground surface 4 of location 2 for cooling.
- Cooling unit 3 has a suction mouthpiece 5 and an outlet mouthpiece 6 .
- Via suction mouthpiece 5 cooling unit 3 draws in air from the location 2 for cooling in the direction of arrow D.
- the indrawn air is then cooled by means of cooling unit 3 and blown out via outlet mouthpiece 6 as a cooled airflow into guide duct 7 .
- Guide duct 7 guides the cooled airflow to the location 2 for cooling.
- the whole wall 8 of guide duct 7 is permeable to the cooled air of the airflow so that cooled air from the cooled airflow being guided toward the location 2 for cooling flows out substantially everywhere on wall 8 of guide duct 7 .
- An outflow part 8 a of wall 8 of guide duct 7 placed above the location 2 for cooling has a first air permeability.
- a guide part 8 b of wall 8 of guide duct 7 has a second air permeability.
- FIG. 1 also shows that outflow part 8 a of wall 8 of guide duct 7 is placed above the location 2 for cooling by means of a frame 9 , wherein guide duct 7 is suspended in frame 9 by means of a mounting 10 extending between guide duct 7 and frame 9 .
- Wall 8 of guide duct 7 is for instance of textile.
- Web 10 is for instance also of textile so that web 10 and guide duct 7 for instance appear to form an integral whole. If desired, device 1 can be displaced over ground surface 4 in simple manner in order to thus place outflow part 8 a above another location for cooling.
- FIG. 2 shows an alternative embodiment of device 1 of FIG. 1 .
- This device 11 is also shown with a cooling unit 3 which blows out cooled air in the form of a cooled airflow into a guide duct 7 with a wall 8 with an outflow part 8 a and a guide part 8 b .
- outflow part 8 a of wall 8 of guide duct 7 is also placed above the location 2 for cooling by means of a frame 9 , wherein guide duct 7 is suspended in frame 9 by means of a mounting 10 extending between guide duct 7 and frame 9 .
- frame 9 forms an arc so that guide duct 7 is also arcuate.
- FIG. 3 shows device 11 of FIG. 2 , wherein outflow part 8 a of wall 8 of guide duct 7 is placed above an office chair 12 so that cooled air flowing out of outflow part 8 a of wall 8 moves downward in the direction of arrow C to desk chair 12 .
- Cooling unit 3 has a suction mouthpiece 5 and an outlet mouthpiece 6 . Cooling unit 3 draws in air in the direction of arrow D via suction mouthpiece 5 . The indrawn air is then cooled by means of cooling unit 3 and blown out via outlet mouthpiece 6 as a cooled airflow in the direction of arrow E into guide duct 7 .
- guide duct 7 guides the cooled airflow to two locations 2 a and 2 b for cooling.
- the whole wall 8 of guide duct 7 is permeable to the cooled air of the airflow so that cooled air of the cooled airflow which is guided to the locations 2 for cooling flows out substantially everywhere on wall 8 of guide duct 7 , as shown by the airflows shown as zigzag arrows F and G.
- An outflow part 8 a of wall 8 of guide duct 7 placed above each location 2 a and 2 b for cooling has a first air permeability.
- a guide part 8 b of wall 8 of guide duct 7 has a second air permeability.
- the air permeability of outflow part 8 a of wall 8 of guide duct 7 is higher than the air permeability of guide part 8 b of wall 8 of guide duct 7 , the cooled air of the cooled airflow is guided mainly along guide part 8 b of wall 8 so that relatively little air from the cooled airflow flows through guide part 8 b of wall 8 (indicated with the relatively short zigzag arrows F), and the cooled air of the cooled airflow flows out mainly at outflow part 8 a of wall 8 placed above the locations 2 a and 2 b for cooling (indicated with the relatively long zigzag arrows G).
- the cooled air flowing out of outflow part 8 a of wall 8 moves downward to locations 2 a and 2 b for cooling in the direction of arrow C as a result of the outflow speed and under the influence of gravitational force and accumulates on ground surface 15 , as indicated with hatching H. Because suction mouthpiece 5 of cooling unit 3 is placed under outflow part 8 a of wall 8 , or downstream relative to the cooled air flowing out of this outflow part 8 a (zigzag arrows G), the air which has accumulated, and which has by now warmed up to some extent, is drawn in again by cooling unit 3 via suction mouthpiece 5 in the direction of arrow D and re-cooled.
- outflow part 8 a is placed at a distance I above the ground surface of the locations 2 a and 2 b for cooling.
- FIG. 4 shows that device 13 supplies cooled air to two locations for cooling.
- the device according to the invention can supply cooled air to one or more than two locations for cooling.
- FIGS. 5 a and 5 b show a schematic cross-sectional view of an embodiment of guide duct 7 of device 13 of FIG. 4 .
- FIG. 5 a shows a cross-section at the position of the sections A of guide duct 7 of FIG. 4 .
- FIG. 5 b shows a cross-section at the position of sections B of guide duct 7 of FIG. 4 .
- FIGS. 5 a and 5 b show that guide duct 7 is suspended in frame 9 by means of a mounting 10 extending between guide duct 7 and frame 9 .
- Mounting 10 has a substantially airtight part 10 a extending from wall 8 of guide duct 7 through a distance J in the direction of frame 9 .
- FIG. 5 a shows that at the position of section A wall 8 of guide duct 7 is formed wholly by guide part 8 a of wall 8 , so that in section A relatively little air of the cooled airflow flows through guide part 8 b of wall 8 (indicated with relatively short zigzag arrows F).
- FIGS. 5 b shows that at the position of sections B of guide duct 7 the upper part of wall 8 is formed by guide part 8 b of wall 8 , while the lower part of wall 8 is formed by outflow part 8 a of wall 8 of guide duct 7 , so that relatively little air from the cooled airflow flows through guide part 8 b of wall 8 from the upper part of wall 8 (indicated with the relatively short zigzag arrows F), and a relatively large amount of air of the cooled airflow flows through guide part 8 a of wall 8 from the lower part of wall 8 (indicated with the relatively long zigzag arrows G).
- FIG. 5 a and 5 b also show that the substantially airtight part 10 a of mounting 10 avoids relatively warm air from the vicinity 14 being entrained in the direction of arrow K with the cooled air flowing out of outflow part 8 a of wall 8 .
- FIG. 5 b also shows that part of the cooled air flowing out of outflow part 8 a (indicated with the relatively long zigzag arrows G) is deflected under the influence of gravitational force.
- FIGS. 6 a and 6 b show a schematic cross-sectional view of an alternative embodiment of the guide duct of FIGS. 5 a and 5 b .
- the cross-section of the guide duct has a half-round form instead of a round form as in the embodiment as shown in FIGS. 5 a and 5 b.
- the cross-section of guide duct 7 of FIGS. 5 a , 5 b , 6 a and 6 b can also take a different form, such as square, rectangular, triangular etc.
- the airtight part of mounting 10 of FIGS. 5 a , 5 b , 6 a and 6 b can also extend over only a part of the distance J from wall 8 in the direction of frame 9 .
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Duct Arrangements (AREA)
- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Building Environments (AREA)
Abstract
Description
- The present invention relates to a device for supplying a cooled airflow to at least one location for cooling. The present invention also relates to supplying a cooled airflow to at least one location for cooling using such a device.
- In regions with a warm climate it is usual to provide the spaces where people spend time with an air conditioning with which the air in the space can be conditioned, generally cooled, as required by persons present in the space. This cooling of the air in said spaces entails a considerable energy consumption. There is therefore a need for a device which enhances comfort and which is also energy-efficient.
- The device according to the invention comprises a cooling unit for generating a cooled airflow; and a guide duct for guiding the cooled airflow from the cooling unit to the at least one location for cooling, wherein substantially the whole wall of the guide duct is permeable to the air of the cooled airflow, an outflow part of the wall of the guide duct has a first air permeability, and a guide part of the wall has a second air permeability, wherein the outflow part of the wall can be placed close to the at least one location for cooling and the air permeability of the outflow part of the wall is higher than the air permeability of the guide part of the wall.
- This device makes it possible, by means of the placing of the outflow part of the wall of the guide duct close to a specific location for cooling within a space, for instance a bed or a workplace, to concentrate the cooled airflow on this specific location. This makes the device according to the invention energy-efficient compared to a device with a supplied airflow which cannot be concentrated on the specific location. Because not only the outflow part of the wall of the guide duct but substantially the whole wall is moreover permeable to the air of the cooled airflow, it is possible here to avoid undesirable effects of the guiding of the cooled airflow through the guide duct, such as condensation on the wall of the guide duct. Such condensation can for instance reduce comfort when the condensation falls from the wall onto the bed, the workplace, or even onto the persons making use thereof. Such condensation is a problem particularly in regions with a relatively high air humidity.
- In a favourable embodiment of the device according to the invention the outflow part of the wall of the guide duct can be placed above the at least one location for cooling. This measure makes it possible to use gravitational force to allow the relatively cold air to move downward to the location for cooling and the persons making use thereof. This has the advantage that the outflow speed of the cooled air of the airflow from the outflow part of the wall of the guide duct can be lower, whereby the noise generated by the airflow as it passes through the wall of the guide duct, and thereby the nuisance it causes, is reduced while the persons moreover experience the comfort of a descending cool air.
- In a further advantageous embodiment of the device according to the invention the temperature of the cooled airflow is at least 2° C. lower than the temperature of the ambient air. The temperature of the cooled airflow which is at least 2° C. lower relative to the temperature of the ambient air ensures that the cooled air moves downward to the location for cooling by means of gravitational force, wherein the person making use of the location experiences a pleasant cooling without draught.
- In a further favourable embodiment of the device, wherein the outflow part of the wall of the guide duct can be placed above the at least one location for cooling, the outflow part of the wall of the guide duct can be placed at a distance of preferably between 100-300 cm, more preferably between 150-250 cm, and still more preferably substantially 200 cm above the at least one location for cooling. This distance of for instance 100, 125, 150, 175, 200, 225, 250, 275, 300 cm is found to enable a good distribution of the cooled airflow over the location for cooling, while in respect of its height the device is also suitable for placing in an existing space.
- In a further embodiment of the device according to the invention, wherein the outflow part of the wall of the guide duct can be placed above the at least one location for cooling, the device also comprises a frame with which the outflow part of the wall of the guide duct can be placed above the at least one location for cooling. This measure for instance enables simple placing of the device above the desired location for cooling. The device can thus be embodied for instance as a displaceable unit which can be easily placed in an existing space in order to supply cooled air to a specific location in this space.
- In a favourable embodiment hereof the guide duct is suspended in the frame by means of a mounting extending between the guide duct and the frame. This measure makes it possible for instance to physically separate the guide duct from the frame and thus avoid condensation on the frame or on the wall of the guide duct when a relatively cold airflow is supplied. In a further embodiment the mounting has a substantially airtight part extending from the wall of the guide duct over a distance of preferably at least 10 cm, more preferably at least 20 cm, and still more preferably at least 30 cm in the direction of the frame. This measure for instance makes it possible, when a relatively cold airflow is supplied to a location for cooling, to avoid warm air present above the outflow part of the guide duct being entrained by the airflow. The efficiency of the device can hereby be further improved, this making the device more energy-efficient.
- In a further favourable embodiment of the device according to the invention the cooling unit comprises a suction mouthpiece for drawing in an airflow for cooling, which suction mouthpiece can be placed under the outflow part of the wall of the guide duct. This measure enables at least partial re-cooling in the cooling unit of a cooled airflow supplied to the location for cooling. The cooled air which has flowed out of the outflow part of the wall of the guide duct placed above the location for cooling will move downward under the influence of gravitational force and is then drawn in again by the cooling unit under the outflow part. Although it will be warmed to some extent before it is drawn in again, the temperature of this air is cooler than the ambient air, whereby only a small measure of additional cooling is necessary, this making the device more energy-efficient.
- In a further favourable embodiment of the device according to the invention the wall of the guide duct is of textile. This measure makes it possible for the airflow to leave the guide duct almost silently, thereby maintaining the comfort of the person making use of the location.
- In a further favourable embodiment of the device according to the invention the outflow speed of the air of the cooled airflow from the outflow part of the wall of the guide duct is preferably between 0.04-0.12 m/s, more preferably between 0.06-0.10 m/s, and still more preferably substantially 0.08 m/s. These outflow speeds of for instance 0.04; 0.05; 0.06; 0.07; 0.08; 0.09; 0.10; 0.11 and 0.12 m/s, together with the acceleration exerted on the cooled air by gravitational force, ensures that the speed of the airflow is so low when it reaches a person making use of the location for cooling that this person experiences a comfort-enhancing cooling without the airflow being perceived here as draughty.
- In a further favourable embodiment of the device according to the invention the air permeability of the outflow part of the wall is preferably between 200-1400 m3/m2/hour at a static pressure of 120 Pa, more preferably between 400-1200 m3/m2/hour and still more preferably between 600-1000 m3/m2/hour. This air permeability of the outflow part of the wall of the guide duct of for instance 200, 300, 400, 500, 600, 700, 800, 900, 1000, 1100, 1200, 1300, 1440 m3/m2/hour at a static pressure of 120 Pa has been found highly suitable for realizing a comfort-enhancing device, and particularly for realizing the above stated outflow speeds of the air of the airflow flowing out of the outflow part of the guide duct.
- In a further favourable embodiment of the device according to the invention the air permeability of the rest of the wall is preferably between 10-80 m3/m2/hour at a static pressure of 120 Pa, more preferably between 15-70 m3/m2/hour and still more preferably between 20-60 m3/m2/hour. This air permeability of the rest of the wall of the guide duct of for
instance - The invention also relates to a method for supplying a cooled airflow to at least one location for cooling using an above described device.
- A favourable embodiment of the method according to the invention comprises the step of placing the outflow part of the wall of the air-permeable guide duct above the at least one location.
- The present invention will be further elucidated hereinbelow on the basis of exemplary embodiments which are shown in the accompanying figures. These are non-limitative exemplary embodiments.
- In the figures:
-
FIG. 1 shows a perspective view of an embodiment of a device according to the invention; -
FIG. 2 shows a perspective view of an alternative embodiment of the device ofFIG. 1 ; -
FIG. 3 shows a perspective view of the application of the device ofFIG. 2 for supplying a cooled airflow to a workplace for cooling; -
FIG. 4 shows a schematic view of the operation of an embodiment of the device according to the invention; and -
FIGS. 5 a and 5 b show a schematic cross-sectional view of an embodiment of the guide duct of the device ofFIG. 4 ; and -
FIGS. 6 a and 6 b show a schematic cross-sectional view of an alternative embodiment of the guide duct ofFIGS. 5 a and 5 b. -
FIG. 1 shows a device 1 for supplying an airflow to alocation 2 for cooling. Shown in device 1 is acooling unit 3 which supports on ground surface 4 oflocation 2 for cooling.Cooling unit 3 has asuction mouthpiece 5 and anoutlet mouthpiece 6. Viasuction mouthpiece 5cooling unit 3 draws in air from thelocation 2 for cooling in the direction of arrow D. The indrawn air is then cooled by means ofcooling unit 3 and blown out viaoutlet mouthpiece 6 as a cooled airflow intoguide duct 7.Guide duct 7 guides the cooled airflow to thelocation 2 for cooling. Thewhole wall 8 ofguide duct 7 is permeable to the cooled air of the airflow so that cooled air from the cooled airflow being guided toward thelocation 2 for cooling flows out substantially everywhere onwall 8 ofguide duct 7. Anoutflow part 8 a ofwall 8 ofguide duct 7 placed above thelocation 2 for cooling has a first air permeability. Aguide part 8 b ofwall 8 ofguide duct 7 has a second air permeability. Because the air permeability ofoutflow part 8 a ofwall 8 ofguide duct 7 is higher than the air permeability ofguide part 8 b ofwall 8 ofguide duct 7, the cooled air from the cooled airflow is guided mainly alongguide part 8 b ofwall 8 and the cooled air of the cooled airflow flows out mainly atoutflow part 8 a ofwall 8. The cooled air flowing out ofoutflow part 8 a ofwall 8 moves downward to thelocation 2 for cooling in the direction of arrow C as a result of the outflow speed and under the influence of gravitational force. This operation of device 1 is further elucidated hereinbelow with reference toFIG. 4 . -
FIG. 1 also shows thatoutflow part 8 a ofwall 8 ofguide duct 7 is placed above thelocation 2 for cooling by means of aframe 9, whereinguide duct 7 is suspended inframe 9 by means of amounting 10 extending betweenguide duct 7 andframe 9.Wall 8 ofguide duct 7 is for instance of textile.Web 10 is for instance also of textile so thatweb 10 andguide duct 7 for instance appear to form an integral whole. If desired, device 1 can be displaced over ground surface 4 in simple manner in order to thus placeoutflow part 8 a above another location for cooling. -
FIG. 2 shows an alternative embodiment of device 1 ofFIG. 1 . Thisdevice 11 is also shown with acooling unit 3 which blows out cooled air in the form of a cooled airflow into aguide duct 7 with awall 8 with anoutflow part 8 a and aguide part 8 b. In thisdevice 11outflow part 8 a ofwall 8 ofguide duct 7 is also placed above thelocation 2 for cooling by means of aframe 9, whereinguide duct 7 is suspended inframe 9 by means of a mounting 10 extending betweenguide duct 7 andframe 9. Indevice 11 shown inFIG. 2 however,frame 9 forms an arc so thatguide duct 7 is also arcuate.FIG. 3 showsdevice 11 ofFIG. 2 , whereinoutflow part 8 a ofwall 8 ofguide duct 7 is placed above anoffice chair 12 so that cooled air flowing out ofoutflow part 8 a ofwall 8 moves downward in the direction of arrow C todesk chair 12. - The operating principle of a device according to the invention, including
devices 1 and 11 ofFIGS. 1-3 , is further elucidated hereinbelow on the basis of thedevice 13 shown schematically inFIG. 4 . -
Device 13 is shown with acooling unit 3.Cooling unit 3 has asuction mouthpiece 5 and anoutlet mouthpiece 6.Cooling unit 3 draws in air in the direction of arrow D viasuction mouthpiece 5. The indrawn air is then cooled by means of coolingunit 3 and blown out viaoutlet mouthpiece 6 as a cooled airflow in the direction of arrow E intoguide duct 7. In this exemplaryembodiment guide duct 7 guides the cooled airflow to twolocations 2 a and 2 b for cooling. Thewhole wall 8 ofguide duct 7 is permeable to the cooled air of the airflow so that cooled air of the cooled airflow which is guided to thelocations 2 for cooling flows out substantially everywhere onwall 8 ofguide duct 7, as shown by the airflows shown as zigzag arrows F and G.An outflow part 8 a ofwall 8 ofguide duct 7 placed above eachlocation 2 a and 2 b for cooling has a first air permeability. Aguide part 8 b ofwall 8 ofguide duct 7 has a second air permeability. Because the air permeability ofoutflow part 8 a ofwall 8 ofguide duct 7 is higher than the air permeability ofguide part 8 b ofwall 8 ofguide duct 7, the cooled air of the cooled airflow is guided mainly alongguide part 8 b ofwall 8 so that relatively little air from the cooled airflow flows throughguide part 8 b of wall 8 (indicated with the relatively short zigzag arrows F), and the cooled air of the cooled airflow flows out mainly atoutflow part 8 a ofwall 8 placed above thelocations 2 a and 2 b for cooling (indicated with the relatively long zigzag arrows G). Because substantially thewhole wall 8 is permeable to the cooled air of the cooled airflow blown intoguide duct 7, the relatively warm air in thevicinity 14 ofwall 8 ofguide duct 7 is kept at a distance so that this relatively warm ambient air cannot condense againstwall 8 ofguide duct 7. - The cooled air flowing out of
outflow part 8 a ofwall 8 moves downward tolocations 2 a and 2 b for cooling in the direction of arrow C as a result of the outflow speed and under the influence of gravitational force and accumulates onground surface 15, as indicated with hatching H. Becausesuction mouthpiece 5 ofcooling unit 3 is placed underoutflow part 8 a ofwall 8, or downstream relative to the cooled air flowing out of thisoutflow part 8 a (zigzag arrows G), the air which has accumulated, and which has by now warmed up to some extent, is drawn in again by coolingunit 3 viasuction mouthpiece 5 in the direction of arrow D and re-cooled. - As shown in
FIG. 4 ,outflow part 8 a is placed at a distance I above the ground surface of thelocations 2 a and 2 b for cooling. -
FIG. 4 shows thatdevice 13 supplies cooled air to two locations for cooling. Alternatively, the device according to the invention can supply cooled air to one or more than two locations for cooling. -
FIGS. 5 a and 5 b show a schematic cross-sectional view of an embodiment ofguide duct 7 ofdevice 13 ofFIG. 4 .FIG. 5 a shows a cross-section at the position of the sections A ofguide duct 7 ofFIG. 4 .FIG. 5 b shows a cross-section at the position of sections B ofguide duct 7 ofFIG. 4 .FIGS. 5 a and 5 b show thatguide duct 7 is suspended inframe 9 by means of a mounting 10 extending betweenguide duct 7 andframe 9. Mounting 10 has a substantially airtight part 10 a extending fromwall 8 ofguide duct 7 through a distance J in the direction offrame 9.FIG. 5 a shows that at the position of section Awall 8 ofguide duct 7 is formed wholly byguide part 8 a ofwall 8, so that in section A relatively little air of the cooled airflow flows throughguide part 8 b of wall 8 (indicated with relatively short zigzag arrows F).FIG. 5 b shows that at the position of sections B ofguide duct 7 the upper part ofwall 8 is formed byguide part 8 b ofwall 8, while the lower part ofwall 8 is formed byoutflow part 8 a ofwall 8 ofguide duct 7, so that relatively little air from the cooled airflow flows throughguide part 8 b ofwall 8 from the upper part of wall 8 (indicated with the relatively short zigzag arrows F), and a relatively large amount of air of the cooled airflow flows throughguide part 8 a ofwall 8 from the lower part of wall 8 (indicated with the relatively long zigzag arrows G).FIGS. 5 a and 5 b also show that the substantially airtight part 10 a of mounting 10 avoids relatively warm air from thevicinity 14 being entrained in the direction of arrow K with the cooled air flowing out ofoutflow part 8 a ofwall 8.FIG. 5 b also shows that part of the cooled air flowing out ofoutflow part 8 a (indicated with the relatively long zigzag arrows G) is deflected under the influence of gravitational force. -
FIGS. 6 a and 6 b show a schematic cross-sectional view of an alternative embodiment of the guide duct ofFIGS. 5 a and 5 b. In this alternative embodiment the cross-section of the guide duct has a half-round form instead of a round form as in the embodiment as shown inFIGS. 5 a and 5 b. - The cross-section of
guide duct 7 ofFIGS. 5 a, 5 b, 6 a and 6 b can also take a different form, such as square, rectangular, triangular etc. - The airtight part of mounting 10 of
FIGS. 5 a, 5 b, 6 a and 6 b can also extend over only a part of the distance J fromwall 8 in the direction offrame 9.
Claims (20)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1037249A NL1037249C2 (en) | 2009-09-03 | 2009-09-03 | DEVICE AND METHOD FOR SUPPLYING TO AT LEAST ONE LOCATION TO BE COOLED OF A COOLED AIRFLOW. |
NL1037249 | 2009-09-03 | ||
PCT/NL2010/050518 WO2011028101A1 (en) | 2009-09-03 | 2010-08-18 | Device and method for supplying a cooled airflow to at least one location for cooling |
Publications (1)
Publication Number | Publication Date |
---|---|
US20120171946A1 true US20120171946A1 (en) | 2012-07-05 |
Family
ID=41794666
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/393,510 Abandoned US20120171946A1 (en) | 2009-09-03 | 2010-08-18 | Device and method for supplying a cooled airflow to at least one location for cooling |
Country Status (6)
Country | Link |
---|---|
US (1) | US20120171946A1 (en) |
EP (1) | EP2473789A1 (en) |
JP (1) | JP2013504030A (en) |
CN (1) | CN102575857A (en) |
NL (1) | NL1037249C2 (en) |
WO (1) | WO2011028101A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102788409A (en) * | 2012-07-29 | 2012-11-21 | 崔丽荣 | Air delivery device for air conditioning |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9435554B2 (en) * | 2012-02-17 | 2016-09-06 | Athletic Recovery Zone, Llc | Outdoor heating or cooling seating system |
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- 2010-08-18 US US13/393,510 patent/US20120171946A1/en not_active Abandoned
- 2010-08-18 CN CN2010800394431A patent/CN102575857A/en active Pending
- 2010-08-18 EP EP10747326A patent/EP2473789A1/en not_active Withdrawn
- 2010-08-18 WO PCT/NL2010/050518 patent/WO2011028101A1/en active Application Filing
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Also Published As
Publication number | Publication date |
---|---|
JP2013504030A (en) | 2013-02-04 |
NL1037249C2 (en) | 2011-03-08 |
CN102575857A (en) | 2012-07-11 |
WO2011028101A1 (en) | 2011-03-10 |
EP2473789A1 (en) | 2012-07-11 |
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