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 PDF

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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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US
United States
Prior art keywords
wall
guide duct
cooling
location
air
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
Application number
US13/393,510
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English (en)
Inventor
Yoeri Nagtegaal
Thomas Petrus Van Den Groenendaal
Gerwin Jansen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
QRISP BV
Original Assignee
QRISP BV
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 QRISP BV filed Critical QRISP BV
Assigned to QRISP B. V. reassignment QRISP B. V. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: JANSEN, GERWIN JOHAN, NAGTEGAAL, YOERI, VAN DEN GROENENDAAL, THOMAS PETRUS
Publication of US20120171946A1 publication Critical patent/US20120171946A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F9/00—Use of air currents for screening, e.g. air curtains
    • 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
    • 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
    • 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)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Duct Arrangements (AREA)
  • Building Environments (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
US13/393,510 2009-09-03 2010-08-18 Device and method for supplying a cooled airflow to at least one location for cooling Abandoned US20120171946A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL1037249A NL1037249C2 (nl) 2009-09-03 2009-09-03 Inrichting en werkwijze voor het aan ten minste een te koelen locatie toevoeren van een gekoelde luchtstroom.
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

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ID=41794666

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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 (zh)
EP (1) EP2473789A1 (zh)
JP (1) JP2013504030A (zh)
CN (1) CN102575857A (zh)
NL (1) NL1037249C2 (zh)
WO (1) WO2011028101A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102788409A (zh) * 2012-07-29 2012-11-21 崔丽荣 用于空调的输气装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
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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US4830904A (en) * 1987-11-06 1989-05-16 James River Corporation Porous thermoformable heat sealable nonwoven fabric
US5232401A (en) * 1991-04-23 1993-08-03 Kawasaki Steel Corporation Air supplying apparatus
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US4781108A (en) * 1985-04-26 1988-11-01 Mtd Medical Technology And Development Ltd. Method and means for supplying clean air to an operating room
US4830904A (en) * 1987-11-06 1989-05-16 James River Corporation Porous thermoformable heat sealable nonwoven fabric
US5232401A (en) * 1991-04-23 1993-08-03 Kawasaki Steel Corporation Air supplying apparatus
US5769708A (en) * 1996-10-22 1998-06-23 Rite-Hite Corporation Fabric air dispersion system with air dispersing panels
US20060138685A1 (en) * 2001-11-29 2006-06-29 Gordon Larry R Control for evaporative cooling apparatus
US20070240490A1 (en) * 2005-12-20 2007-10-18 Desrochers Eric M Duct probe assembly system for multipoint air sampling
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Publication number Priority date Publication date Assignee Title
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Also Published As

Publication number Publication date
CN102575857A (zh) 2012-07-11
EP2473789A1 (en) 2012-07-11
WO2011028101A1 (en) 2011-03-10
NL1037249C2 (nl) 2011-03-08
JP2013504030A (ja) 2013-02-04

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AS Assignment

Owner name: QRISP B. V., NETHERLANDS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:NAGTEGAAL, YOERI;VAN DEN GROENENDAAL, THOMAS PETRUS VAN DEN;JANSEN, GERWIN JOHAN;REEL/FRAME:027925/0578

Effective date: 20120313

Owner name: QRISP B. V., NETHERLANDS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:NAGTEGAAL, YOERI;VAN DEN GROENENDAAL, THOMAS PETRUS;JANSEN, GERWIN JOHAN;REEL/FRAME:027925/0578

Effective date: 20120313

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION