US3867980A - Air conditioning system - Google Patents

Air conditioning system Download PDF

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Publication number
US3867980A
US3867980A US311076A US31107672A US3867980A US 3867980 A US3867980 A US 3867980A US 311076 A US311076 A US 311076A US 31107672 A US31107672 A US 31107672A US 3867980 A US3867980 A US 3867980A
Authority
US
United States
Prior art keywords
air
terminal
conditioned air
ceiling
temperature
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.)
Expired - Lifetime
Application number
US311076A
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English (en)
Inventor
Darwin G Traver
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.)
Carrier Corp
Original Assignee
Carrier Corp
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 Carrier Corp filed Critical Carrier Corp
Priority to US311076A priority Critical patent/US3867980A/en
Priority to ZA738690A priority patent/ZA738690B/xx
Priority to AU62422/73A priority patent/AU479296B2/en
Priority to GB5282273A priority patent/GB1456022A/en
Priority to IT31588/73A priority patent/IT1001889B/it
Priority to CH1656573A priority patent/CH560361A5/xx
Priority to MX16616173A priority patent/MX146512A/es
Priority to DE2358884A priority patent/DE2358884C3/de
Priority to BR9373/73A priority patent/BR7309373D0/pt
Priority to FR7342511A priority patent/FR2209080B1/fr
Priority to JP13481173A priority patent/JPS5313106B2/ja
Priority to SE7316222A priority patent/SE405411B/sv
Application granted granted Critical
Publication of US3867980A publication Critical patent/US3867980A/en
Priority to US05/530,577 priority patent/US3967780A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/044—Systems in which all treatment is given in the central station, i.e. all-air systems
    • F24F3/0442—Systems in which all treatment is given in the central station, i.e. all-air systems with volume control at a constant temperature
    • F24F3/0444—Systems in which all treatment is given in the central station, i.e. all-air systems with volume control at a constant temperature in which two airstreams are conducted from the central station via independent conduits to the space to be treated, of which one has a constant volume and a season-adapted temperature, while the other one is always cold and varies in volume
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/02—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation having means for ventilation or vapour discharge
    • E04B2009/026—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation having means for ventilation or vapour discharge the supporting ceiling grid acting as air diffusers

Definitions

  • the first source provides air at a temperature level which varies inversely to changes in the outdoor air temperature.
  • the air is discharged from the terminal along the ceiling towards the peripheral wall of the room to compensate for transmission gains or losses.
  • the second source provides air at a predetermined temperature level.
  • the air is discharged from the terminal along the ceiling of'the room towards the interior thereof to compensate for the remaining cooling load therein, the volume of the air being varied in accordance with changes in the cooling load.
  • the volume of the variable temperature air discharged into the room is maintained constant irrespective of changes in the pressure of the air supplied to the terminal.
  • a dual conduit system is designed to supply two air'streams to enclosed areas or rooms that have a reversing transmission load; that is, during summer, heat flows from the ambient air into the building, whereas during winter, heat flows from the building to the ambient air.
  • One air stream, called the secondary air is cooled the year round and is constant in temperature and variable in volume.
  • the other air stream, called the primary air is constant in volume and the air temperature is varied; it is warm in winter and cool in summer. Primary air is, therefore, a constant volume-variable temperature air stream.
  • central station apparatus are employed to provide the air temperature and volumes required.
  • the primary air apparatus varies the psychometric properties of the air supplied thereto, which may com prise a mixture of outdoor and return air.
  • the apparatus includes filters to remove dirt or foreign matter entrainedin the air, preheat coils as required to temper cold winter air, a humidifier to add winter humidification and a dehumidifier to remove excess moisture and to cool the supply air furnished at a constant volume to the enclosed areas contained in the building.
  • the system includes a source of primary air and a source of secondary air.
  • the source of primary air is connected by suitable conduit means to a first portion of a plenum which is provided in the ceiling of the space being conditioned.
  • the source of secondary air is provided by suitable means to a second portion of the plenum.
  • the primary air is maintainedseparate from the secondary air.
  • FIG. 1 of the drawing illustrates a typical space in a building wherein the air terminal of the present air conditioning system may be employed;
  • FIG. 2 schematically illustrates the air conditioning system in accordance with the present invention.
  • FIG. 3 illustrates a sectional view of a ceiling air terminal suitable for use in the air conditioning system of the present invention.
  • FIG. 1 there is shown an enclosed space 18, which may be a room or area in an office building or similar structure.
  • Room 18 includes a peripheral wall 20' having window 20 therein.
  • the room further includes a ceiling 19.
  • ceiling 19 comprises a plurality of acoustical tiles 19' which are suspended from the actual ceiling, the acoustical tiles defining a false ceiling.
  • a ceiling air terminal 21 is disposed in the space between the false ceiling and the actual ceiling.
  • Ceiling air terminal 21 is operable to discharge conditioned air in a manner that shall be more fully explained hereinafter to condition room 18 to a desired temperature and humidity level.
  • the air conditioning system 10 which may be described as a central station type, includes an air conditioning equipment section designated generally by the numeral 12, and a conduit system l4, 15, for conducting conditioned primary and secondary air, respectively, to each of the areas or rooms 18 of the building served by the air conditioning system.
  • Equipment section 12 may be in a basement or on the roof of the building.
  • the portion of such central station equipment regulating the secondary air preferably includes a suitable filter 30 to remove foreign matter entrained in the air and a dehumidifier or cooling coil 31 to remove the excess moisture and/or cool the supply air, arranged in series flow relationship and encased within a suitable housing 32. Chilled water is supplied to coils 25 and 31 via suitable means (not shown).
  • adjustable dampers are provided to vary the flow of supply air to the secondary air conditioning apparatus.
  • Adjustable dampers 46 are provided to regulate the flow of outdoor air to the secondary air conditioning apparatus.
  • Conduit means 15 conveys air from fan 47 to the area or rooms being conditioned. Conduit means 14 and 15 provide the primary air and secondary air to each ceiling air terminal 21; a single air terminal being disposed in each of the rooms 18.
  • ceiling air terminal 21 is disposed-relatively close to pcripheral wall 20' of room 18.
  • Conduit means 14 is connected to a first portion 61 of plenum 63 of the terminal.
  • Conduit means 15 is connected to a second portion 62 of plenum 63.
  • primary air whose temperature may be varied in accordance with changes in temperature of the ambient air outside the enclosure, is discharged from plenum portion 61 through diffuser section 64 of the unit and flows-along the ceiling 19 towards peripheral wall 20'.
  • the discharged air then flows along thewall 20' to thus blanket window 20 and wall 20 with a' layer of conditioned air.
  • the temperature of the air will compensate for transmission gains or losses that will occur as a result of conduction through the peripheral wall, and in particular through the window of the room.
  • the secondary air will be discharged from plenum 62 via diffuser means 65 which will direct the air along the ceiling towards the interior portion of room 18. As noted before, the temperature of the secondary air is maintained relatively constant. Suitable means (not shown) will sense the temperature of the room and will vary the quantity of air discharged from the unit to maintain the temperature in the room at a predetermined level.
  • a baffle or partition member 66 divides plenum 63 into first and second portions 61 and 62 and thus maintains primary air separate from secondary air so that there is no intermixing therebetween.
  • FIG. 3 there is shown a ceiling air terminal of a design suitable for use in the air conditioning system of the present invention.
  • Such ceiling air terminal is operable to cause the air discharged therefrom to flow along the ceiling of the room.
  • Plenum 63 is ordinarily lined with a sound absorbing material 67, such as a glass fiber blanket.
  • An air supply distribution plate 68 having a plurality of collared openings 69 therein is provided to evenly distribute the supply air from plenum 63 into distribution chamber 70 which is defined by the top and side walls of distribu-. tion plate 68.
  • the air supplied to the distribution chamber from the plenum should have minimal nonvertical velocity components. Since the air supplied to the ceiling terminal is ordinarily introduced horizontally into the end of the terminal, there is a large horizontal velocity component to the air stream within the plenum.
  • the distribution plate employing a large number of collared openings is very effective in providing an efficient, nonturbulent vertical diversion of the air stream from plenum 63 into distribution chamber 70. This minimizes noise generation within the terminal.
  • the collars divert the horizontal velocity component of the air stream so that the velocity components of the stream within distribution chamber 70 are vertical.
  • the damper mechanism is disposed a substantial distance upstream from the discharge openings in the terminal to provide sufficient space therebetween to absorb any noise generated by the damper mechanism.
  • downwardly extending walls 78 which form air passages in conjunction with plates 76, are lined with sound absorbing material such as a glass fiber blanket 79..
  • Outlet members having outwardly flared portions 81 are fixed, as by welding, to walls 78.
  • the ceiling air terminal hereinabove described is particularly suitable to discharge the primary airin the manner required to compensate for transmission gains t or losses.
  • the terminal discharges the secondary air, and incombination with a thermostat regulates the flow thereof to compensate for changes in the internal cooling load.
  • U.S. Pat. No. 3,554,l l l issued Jan. 12, 1971, Darwin G. Traver and Fred V. Honnold, Jr., inventors.
  • Other terminals that operate to discharge the conditionedair therefrom so that the air will flow along the ceiling of the room may be employed without departing from the spirit of the invention.
  • An air conditioning system for conditioning the air in a plurality of enclosed areas in a building, each of the enclosed areas having a peripheral portion requiring conditioned air having a variable temperature and an interior portion requiring conditioned air at a constant temperature, said system comprising:
  • a. conditioned air supply terminal disposed in the ceiling of an individual enclosed area
  • c. means to supply said varying temperature condi tioned air to a first portion of said air terminal;

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Duct Arrangements (AREA)
  • Air Conditioning Control Device (AREA)
  • Central Air Conditioning (AREA)
US311076A 1972-12-01 1972-12-01 Air conditioning system Expired - Lifetime US3867980A (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
US311076A US3867980A (en) 1972-12-01 1972-12-01 Air conditioning system
ZA738690A ZA738690B (en) 1972-12-01 1973-11-13 Air conditioning system
AU62422/73A AU479296B2 (en) 1972-12-01 1973-11-13 Air conditioning system
GB5282273A GB1456022A (en) 1972-12-01 1973-11-14 Air conditioning system
IT31588/73A IT1001889B (it) 1972-12-01 1973-11-21 Impianto di condizionamento del l aria
CH1656573A CH560361A5 (sv) 1972-12-01 1973-11-26
MX16616173A MX146512A (es) 1972-12-01 1973-11-27 Mejoras en sistema de acondicionamiento de aire
DE2358884A DE2358884C3 (de) 1972-12-01 1973-11-27 Klimaanlage
BR9373/73A BR7309373D0 (pt) 1972-12-01 1973-11-29 Sistema e terminal de condicionamento de ar
FR7342511A FR2209080B1 (sv) 1972-12-01 1973-11-29
JP13481173A JPS5313106B2 (sv) 1972-12-01 1973-11-30
SE7316222A SE405411B (sv) 1972-12-01 1973-11-30 Luftkonditioneringsanleggning for flera slutna utrymmen i en byggnad
US05/530,577 US3967780A (en) 1972-12-01 1975-12-09 Air conditioning system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US311076A US3867980A (en) 1972-12-01 1972-12-01 Air conditioning system

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US05/530,577 Division US3967780A (en) 1972-12-01 1975-12-09 Air conditioning system

Publications (1)

Publication Number Publication Date
US3867980A true US3867980A (en) 1975-02-25

Family

ID=23205285

Family Applications (1)

Application Number Title Priority Date Filing Date
US311076A Expired - Lifetime US3867980A (en) 1972-12-01 1972-12-01 Air conditioning system

Country Status (10)

Country Link
US (1) US3867980A (sv)
JP (1) JPS5313106B2 (sv)
BR (1) BR7309373D0 (sv)
CH (1) CH560361A5 (sv)
DE (1) DE2358884C3 (sv)
FR (1) FR2209080B1 (sv)
GB (1) GB1456022A (sv)
IT (1) IT1001889B (sv)
SE (1) SE405411B (sv)
ZA (1) ZA738690B (sv)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3949810A (en) * 1974-11-29 1976-04-13 Carrier Corporation Air conditioning system
US3952795A (en) * 1974-11-29 1976-04-27 Carrier Corporation Air conditioning system
DE2553380A1 (de) * 1974-11-29 1976-08-12 Carrier Corp Klimaanlage
US4014381A (en) * 1974-11-29 1977-03-29 Carrier Corporation Air conditioning system
US4019566A (en) * 1974-11-29 1977-04-26 Carrier Corporation Air conditioning system
US4076073A (en) * 1975-02-18 1978-02-28 Matsushita Electric Industrial Co., Ltd. Combination re-conditioning unit and illuminating appliance for use with central air conditioning system
US4312474A (en) * 1980-07-02 1982-01-26 Carrier Corporation Positive shutoff
US4344356A (en) * 1980-06-23 1982-08-17 Deere & Company Air distribution system
US4851066A (en) * 1983-12-19 1989-07-25 Carrier Corporation Snap-secured bladder for air-distribution terminal
CN110173195A (zh) * 2019-06-11 2019-08-27 青岛海尔空调器有限总公司 智能窗和用于智能窗的控制方法
NO20180676A1 (no) * 2018-05-14 2019-11-15 Gupex As System for luftkondisjonering

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5245735A (en) * 1992-03-12 1993-09-21 Hagop Tanashian Shared foot pedal switch assembly for flexible shaft power tools
WO2017175749A1 (ja) * 2016-04-08 2017-10-12 パナソニックＩｐマネジメント株式会社 室内空調システム
CN107588467A (zh) * 2017-07-07 2018-01-16 泉州市鸿远电子科技有限公司 一种实用的空气净化装置
CN107166578B (zh) * 2017-07-07 2018-06-01 江苏锡沂高新区科技发展有限公司 一种空气净化装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3623543A (en) * 1970-04-02 1971-11-30 Carrier Corp Dual conduit air-conditioning system
US3664253A (en) * 1969-01-27 1972-05-23 Gunnar C F Asker Conditioned air distribution system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH293047A (de) * 1951-05-31 1953-09-15 Carrier Corp Verfahren zur Luftkonditionierung in Gebäuden mit einer Mehrzahl von geschlossenen Räumen.
US3554111A (en) * 1968-11-29 1971-01-12 Carrier Corp Air conditioning terminal

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3664253A (en) * 1969-01-27 1972-05-23 Gunnar C F Asker Conditioned air distribution system
US3623543A (en) * 1970-04-02 1971-11-30 Carrier Corp Dual conduit air-conditioning system

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2553380C2 (sv) * 1974-11-29 1988-02-11 Cercier Corp
US3952795A (en) * 1974-11-29 1976-04-27 Carrier Corporation Air conditioning system
DE2553380A1 (de) * 1974-11-29 1976-08-12 Carrier Corp Klimaanlage
US4014381A (en) * 1974-11-29 1977-03-29 Carrier Corporation Air conditioning system
US4019566A (en) * 1974-11-29 1977-04-26 Carrier Corporation Air conditioning system
US3949810A (en) * 1974-11-29 1976-04-13 Carrier Corporation Air conditioning system
US4076073A (en) * 1975-02-18 1978-02-28 Matsushita Electric Industrial Co., Ltd. Combination re-conditioning unit and illuminating appliance for use with central air conditioning system
US4344356A (en) * 1980-06-23 1982-08-17 Deere & Company Air distribution system
US4312474A (en) * 1980-07-02 1982-01-26 Carrier Corporation Positive shutoff
US4851066A (en) * 1983-12-19 1989-07-25 Carrier Corporation Snap-secured bladder for air-distribution terminal
NO20180676A1 (no) * 2018-05-14 2019-11-15 Gupex As System for luftkondisjonering
NO346324B1 (no) * 2018-05-14 2022-06-07 Gupex As System for luftkondisjonering
CN110173195A (zh) * 2019-06-11 2019-08-27 青岛海尔空调器有限总公司 智能窗和用于智能窗的控制方法

Also Published As

Publication number Publication date
ZA738690B (en) 1974-09-25
GB1456022A (en) 1976-11-17
JPS5313106B2 (sv) 1978-05-08
FR2209080A1 (sv) 1974-06-28
IT1001889B (it) 1976-04-30
CH560361A5 (sv) 1975-03-27
SE405411B (sv) 1978-12-04
DE2358884C3 (de) 1982-01-07
DE2358884A1 (de) 1974-06-06
BR7309373D0 (pt) 1974-09-10
JPS4988346A (sv) 1974-08-23
AU6242273A (en) 1975-05-15
FR2209080B1 (sv) 1976-05-14
DE2358884B2 (de) 1981-05-07

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