WO1996039022A1 - Method and means for improved sidewall ventilation - Google Patents
Method and means for improved sidewall ventilation Download PDFInfo
- Publication number
- WO1996039022A1 WO1996039022A1 PCT/US1996/009079 US9609079W WO9639022A1 WO 1996039022 A1 WO1996039022 A1 WO 1996039022A1 US 9609079 W US9609079 W US 9609079W WO 9639022 A1 WO9639022 A1 WO 9639022A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- baffle
- air
- inlet
- housing
- determining
- Prior art date
Links
- 238000009423 ventilation Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims description 15
- 244000144972 livestock Species 0.000 claims abstract description 20
- 239000007787 solid Substances 0.000 abstract 1
- 241001465754 Metazoa Species 0.000 description 12
- 230000007704 transition Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 230000003068 static effect Effects 0.000 description 7
- 230000007423 decrease Effects 0.000 description 6
- 238000001816 cooling Methods 0.000 description 4
- 238000005399 mechanical ventilation Methods 0.000 description 4
- 238000005496 tempering Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 239000003570 air Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000004941 influx Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000036642 wellbeing Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K1/00—Housing animals; Equipment therefor
- A01K1/0047—Air-conditioning, e.g. ventilation, of animal housings
- A01K1/0064—Construction of air inlets or outlets in walls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/75—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity for maintaining constant air flow rate or air velocity
Definitions
- the baffle Due to the baffle's positioning adjacent the outlet area of the inlet housing, the baffle also acts as a directional member forcing incoming air into an upward flow direction. Due to the invention's unique construction, when the volumetric air flow rate is great, the baffle imparts a more limited influence on the direction of the air flow. However, when the air flow is less than maximum, the baffle will tend to force the air flow direction higher in the confinement space so as to compensate for its lower volumetric air flow rate in order to project the fresh air further into the confinement space and into the air mass above the animals that contains the highest heat and moisture content. Further, as the volumetric air flow decreases, the baffle moves closer to its closed position, thereby decreasing the size of the air outlet.
- Figure 1 is a perspective view of a sidewall ventilation inlet.
- Figure 3 is an overhead plan view of a sidewall ventilation inlet.
- Inlet 10 has two apertures which allows air into the housing.
- Upper aperture 28 is positioned in the rear-most portion of top wall 12.
- Lower aperture 30 is positioned in the rear-most portion of bottom wall 14.
- bottom wall 14 is shorter in length than top wall 12 so that rear wall 20 is substantially planar and non- vertical in orientation in the preferred embodiment of the invention, however the rear wall 20 may also be planar and vertical or non-planar and semi-oval in alternative configurations.
- Rear wall 20 cooperates with apertures 28 and 30 and shields the air stream entering via apertures 28 and 30 from wind pressure directed toward the sidewall of the building in which the air inlet is installed.
- baffle 22 extends into the confinement space as the opening increases.
- biasing means 26 extends until the biasing force exactly balances the force created by the pressure difference.
- a flange 32 extends from the inlet opening 34 and is constructed to both strengthen inlet 10 and to hold inlet 10 in place in the wall of a confinement building.
- baffle 22 will be inclined so as to direct the flow of air upward into the confinement space, thereby allowing the flow of air greater penetration into the confinement space and greatly extending the time for mixing and tempering of the air stream.
- This extended mixing time prevents a chilling effect on the animals that can occur in the absence of such mixing and tempering because the greater density of cold exterior air compared to the warm interior air causes the incoming air stream to drop to floor level unless properly managed by the automatic operation of the air inlet.
- baffle 22 moves toward its closed position when the air pressure within the housing is only moderately high, the size of the air outlet between baffle 22 and lip 36 decreases proportionately thereby maintaining a nearly constant linear air flow rate as the volumetric rate decreases.
- the value of h2 is in inches.
- the angle ⁇ 2 is represented in degrees.
- the angle ⁇ is defined by the following formula:
- C2 is determined by the following equation:
- Li is represented in inches.
- L Q is measured in inches.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Environmental Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Chemical & Material Sciences (AREA)
- Housing For Livestock And Birds (AREA)
- Air-Flow Control Members (AREA)
- Ventilation (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002224255A CA2224255C (en) | 1995-06-05 | 1996-06-05 | Method and means for improved sidewall ventilation |
EP96918171A EP0959669A1 (en) | 1995-06-05 | 1996-06-05 | Method and means for improved sidewall ventilation |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US46430195A | 1995-06-05 | 1995-06-05 | |
US08/464,301 | 1995-06-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996039022A1 true WO1996039022A1 (en) | 1996-12-12 |
Family
ID=23843366
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1996/009079 WO1996039022A1 (en) | 1995-06-05 | 1996-06-05 | Method and means for improved sidewall ventilation |
Country Status (4)
Country | Link |
---|---|
US (1) | US5775988A (en) |
EP (1) | EP0959669A1 (en) |
CA (1) | CA2224255C (en) |
WO (1) | WO1996039022A1 (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE0101953L (en) * | 2001-06-05 | 2002-12-06 | Natvent Ab | Supply air means for regulating effective supply air in varying air flow |
US6475078B1 (en) * | 2001-10-09 | 2002-11-05 | Norb Borcherding | Air ventilating device |
DE102006053208B4 (en) * | 2006-11-11 | 2009-09-03 | Naber Holding Gmbh & Co. Kg | wall box |
US8550888B2 (en) * | 2009-06-15 | 2013-10-08 | Trane International Inc. | Actuator for a fan-powered damper |
US8834591B2 (en) | 2010-10-01 | 2014-09-16 | Aaf-Mcquay Inc. | Filter structure for removing contaminants from stream of fluid |
US20130087133A1 (en) * | 2011-10-11 | 2013-04-11 | American Trim, Llc | Ventilating range hood |
US9562698B2 (en) * | 2013-06-19 | 2017-02-07 | Anthony Cote | Passive constant pressure hatch for fresh air direct fired gas heated ventilation systems |
USD782023S1 (en) * | 2014-07-25 | 2017-03-21 | Craig Stevens | HVAC angled return air box with a angled throat |
USD770030S1 (en) * | 2014-07-25 | 2016-10-25 | Craig Stevens | HVAC right angle return air box with a square throat |
USD770031S1 (en) * | 2014-07-25 | 2016-10-25 | Craig Stevens | HVAC angled return air box with a square throat |
USD770032S1 (en) * | 2014-07-25 | 2016-10-25 | Craig Stevens | HVAC radius return air box with an angled throat |
US20220378007A1 (en) * | 2021-05-30 | 2022-12-01 | Almarai Company | Livestock house air filtration system |
CN114847166B (en) * | 2022-04-20 | 2023-06-30 | 漯河市动物疫病预防控制中心 | Ventilation system for livestock centralized cultivation |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2105077A1 (en) * | 1971-02-04 | 1972-08-10 | Herbst D | Device for the even distribution of air within rooms connected to the air distribution ducts of an air conditioning system |
WO1984001615A1 (en) * | 1982-10-15 | 1984-04-26 | Staehr Turbovent | Ventilation plant with spreading nozzles, especially for stables |
US4794852A (en) * | 1988-01-27 | 1989-01-03 | Del Air Systems Ltd. | Inlet Device |
US5236391A (en) * | 1992-03-31 | 1993-08-17 | Schaefer Ronald E | Flush-mounted air intake |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD257060S (en) | 1977-06-30 | 1980-09-23 | AAA Associates Inc. | Fan housing |
US4498373A (en) * | 1983-04-18 | 1985-02-12 | Dittmer Willard W | Air inlet system |
US4535685A (en) * | 1984-03-05 | 1985-08-20 | Maurmann Ingenieurburo Gmbh | Air outlet for air conditioning systems |
US5201685A (en) * | 1991-04-25 | 1993-04-13 | Raydot, Incorporated | Integral air intake apparatus |
-
1996
- 1996-06-05 WO PCT/US1996/009079 patent/WO1996039022A1/en not_active Application Discontinuation
- 1996-06-05 EP EP96918171A patent/EP0959669A1/en not_active Withdrawn
- 1996-06-05 CA CA002224255A patent/CA2224255C/en not_active Expired - Fee Related
- 1996-11-18 US US08/751,954 patent/US5775988A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2105077A1 (en) * | 1971-02-04 | 1972-08-10 | Herbst D | Device for the even distribution of air within rooms connected to the air distribution ducts of an air conditioning system |
WO1984001615A1 (en) * | 1982-10-15 | 1984-04-26 | Staehr Turbovent | Ventilation plant with spreading nozzles, especially for stables |
US4794852A (en) * | 1988-01-27 | 1989-01-03 | Del Air Systems Ltd. | Inlet Device |
US5236391A (en) * | 1992-03-31 | 1993-08-17 | Schaefer Ronald E | Flush-mounted air intake |
Also Published As
Publication number | Publication date |
---|---|
CA2224255C (en) | 2001-08-21 |
CA2224255A1 (en) | 1996-12-12 |
US5775988A (en) | 1998-07-07 |
EP0959669A1 (en) | 1999-12-01 |
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