US3299795A - Room air conditioning arrangement with porous walls - Google Patents

Room air conditioning arrangement with porous walls Download PDF

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Publication number
US3299795A
US3299795A US438877A US43887765A US3299795A US 3299795 A US3299795 A US 3299795A US 438877 A US438877 A US 438877A US 43887765 A US43887765 A US 43887765A US 3299795 A US3299795 A US 3299795A
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United States
Prior art keywords
air
ducts
room
wall
air conditioning
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Expired - Lifetime
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US438877A
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English (en)
Inventor
Teixeira Jose Miguel Araujo
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CONSTRUCOES CONTINENTAL
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CONSTRUCOES CONTINENTAL
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Publication of US3299795A publication Critical patent/US3299795A/en
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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
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • 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
    • F24F13/0227—Ducting arrangements using parts of the building, e.g. air ducts inside the floor, walls or ceiling of a building
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0089—Systems using radiation from walls or panels

Definitions

  • the present invention relates to a room air conditioning arrangement, particularly for home air conditioning.
  • Air conditioning arrangements for dwelling spaces usually provide a means to regulate the temperature within the room, as well as the humidity of the air therein.
  • heating elements such as radiators, or cooling units are used. Entire room surfaces have already been used as cooling, or heating surfaces, for example by imbedding heating or cooling coils in the ceiling or in the floor.
  • Other air conditioning arrangements utilize exchange of air in the room, in which cooled, or heated air is introduced therein and exchanged for the air in the room itself. This system permits also a regulation of the humidity within the room, by incorporating in the air exchange unit humidifying or dehumidifying devices.
  • Known air conditioning arrangements usually cause a substantial motion of air within the room, either by utilizing the air therein as a means to add, or remove heat in the room, or by heating or cooling selected areas within the room, for example by means of a radiator, whereby necessarily drafts and air currents will be generated. Such drafts are often undesirable for the persons in the room particularly when resting. Exposure to a blast of warm air causes rapid evaporation and to some people, discomfort.
  • air is conducted in a known manner through ducts provided within the walls, and if desired also within the ceiling and the floor, the air movement being so arranged that adjacent ducts have air moving therethrough in opposite direction.
  • the inner wall structure is made of such a material that it has good heat conductivity, so that the entire wall surface, and if desired also the entire ceiling and floor, will reach a temperature in such a manner that heat exchange between the wall and objects, air in the room, or people therein occurs essentially by means of radiation from the wall surface from the wall itself.
  • the heat radiation per unit area is low, so that there is practically no noticeable motion of the air.
  • the material of the wall between the ducts and the inner surface in the room can be arranged to have such porosity, that with a predetermined operating pressure of the air within the ducts, equalization of the vapor pressure of the air in the room and in the duct occurs without however causing a substantial motion of air through the wall itself. It is also possible to obtain a limited exchange of air in the room by forming the region of the Wall between the ducts and the inner surface of such porosity, that such air exchange can be effected.
  • air air
  • FIG. 1 illustrates, in schematic form, the wall at the corner, partly in plan view and partly in section;
  • FIG. 2 is a section along line IIII of FIG. 1.
  • a wall 1 of a room has imbedded therein ducts 2, 3, 4, 5, and 6.
  • the air in ducts Z, 4, and 6 is arranged to pass through the ducts in the direction opposite to that in ducts 3 and 5, as illustrated by the arrows in FIG. 1.
  • the wall is formed of hollow stone, or brick.
  • the region towards the outside of the wall or of the building, where no heat exchange is desired, and the side portions of the wall consists of a good heat insulating material, for example high aggregate concrete.
  • the region 9, which faces the wall to be air conditioned consists of a material which has such thickness and such heat conductivity characteristics, that the wall region 9 will reach a uniform, predetermined temperature, which Will depend upon the temperature of the air through the ducts.
  • Wall regions 9 can further be made of a material of such porosity, that the vapor pressure of the air circulating within the ducts 2-5, and the vapor pressure within the room itself can equalize. By making the wall even more porous, and passing air through the ducts at a pressure in excess, or below the air pressure in the room itself, an exchange of air through the wall itself can be obtained.
  • the wall regions 9 of the wall itself can be integral with the entire wall, or the material of region 9 can be built of separate, preformed sheets, or blocks.
  • the outside wall region 7, and the sides regions 8 between the ducts may be precast or built from brick or cement blocks in the conventional manner, leaving a space for the ducts 2-6. The ducts are then closed off by the inner wall units 9, of difierent and much more porous material.
  • Wall 9 may be built of gypsum blocks, or plaster, or unglazed brick, or similar material which has not been compacted or provided with a hard finish.
  • a room air conditioning arrangement for use in a building structure having walls defining a room, parallel ducts formed in said walls for passage of air therethrough, the wall region between said ducts and the outside of said building structure being of poor heat-conducting material, the wall region between said room and said ducts being of good heat-conducting and porous material permitting limited equalization of pressure of the air in the room and the ducts; and air of predetermined temperature being circulated in said ducts, the circulation of the air in adjacent ducts being in opposite direction and the exchange of air from said ducts to said rooms being only through said porous wall, whereby the temperature in said room will be affected by the radiation of heat from or into the Wall and will be determined by temperature of the air being circulated in said ducts in opposite direction.
  • Air conditioning arrangement as claimed in claim 1, the air pressure in at least some of said ducts being less than atmospheric pressure so that air from said room is sucked into the ducts having air at less than atmospheric pressure.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Civil Engineering (AREA)
  • Building Environments (AREA)
  • Duct Arrangements (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
US438877A 1964-03-12 1965-03-11 Room air conditioning arrangement with porous walls Expired - Lifetime US3299795A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC0032401 1964-03-12

Publications (1)

Publication Number Publication Date
US3299795A true US3299795A (en) 1967-01-24

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Family Applications (1)

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US438877A Expired - Lifetime US3299795A (en) 1964-03-12 1965-03-11 Room air conditioning arrangement with porous walls

Country Status (4)

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US (1) US3299795A (de)
BR (1) BR6567710D0 (de)
DE (1) DE1454548A1 (de)
ES (1) ES310487A1 (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4075866A (en) * 1977-01-07 1978-02-28 General Motors Corporation Refrigerator defroster-humidifier
US4411255A (en) * 1981-01-06 1983-10-25 Lee Kenneth S Passive thermal storage wall structures for heating and cooling buildings
DE4124982A1 (de) * 1991-07-27 1993-01-28 Karl Heinz Vahlbrauk Vorrichtung zur klimatisierung von raeumen
EP1018625A2 (de) * 1999-01-08 2000-07-12 WINTERMANTEL, Erich Strömungskanal
DE102007016798A1 (de) 2007-04-05 2008-10-16 Aka Ziegelgruppe Gmbh Mauerstein, Verfahren zu seiner Herstellung und mit dem Mauerstein aufgebautes Gebäude
US20150129163A1 (en) * 2013-11-12 2015-05-14 David W. Schonhorst System for the Regulation of the Internal Temperature of a Structure
US20150176852A1 (en) * 2012-11-30 2015-06-25 C'stec Corporation Wall, system of highly clean rooms, production method thereof and construction
US20170167738A1 (en) * 2015-04-07 2017-06-15 Brown University Apparatus and method for passively cooling an interior
DE102019131834A1 (de) * 2019-11-25 2021-05-27 Erlus Aktiengesellschaft Lüftungsnetzwerk für ein Gebäude
US11560710B2 (en) 2018-08-31 2023-01-24 Techstyle Materials, Inc. Multifunctional system for passive heat and water management

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2809086C2 (de) * 1978-03-02 1989-05-18 Michael 8311 Bodenkirchen Riebesecker Keramikplatte zur Klimatisierung von Räumen
DE4037988A1 (de) * 1990-11-29 1992-06-04 Richard Vetter Verfahren zur beheizung von gebaeuden und vorrichtung zur durchfuehrung des verfahrens
DE4332531A1 (de) * 1993-09-24 1995-03-30 Karl Heinz Vahlbrauk Wandungselement
DE20005184U1 (de) 2000-03-21 2000-06-29 Vießmann, Hans, Dr. Dr., 95030 Hof Belüftungsplatte für Raumzellen

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1168304A (en) * 1915-08-07 1916-01-18 Frank O Hellstrom Heating system.
US1539611A (en) * 1923-04-06 1925-05-26 Emory E Trowbridge Air-ventilated construction and building unit used in connection therewith
US1644996A (en) * 1925-01-16 1927-10-11 Grossinger Anton Building construction
US2013367A (en) * 1933-04-29 1935-09-03 Milton W Thompson Building construction
US2427780A (en) * 1944-06-10 1947-09-23 Mcdowell & Torrence Lumber Com Air conditioning of buildings by passing air through hollow foundation blocks
US2465184A (en) * 1946-09-18 1949-03-22 William N Alderman Building heating system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1168304A (en) * 1915-08-07 1916-01-18 Frank O Hellstrom Heating system.
US1539611A (en) * 1923-04-06 1925-05-26 Emory E Trowbridge Air-ventilated construction and building unit used in connection therewith
US1644996A (en) * 1925-01-16 1927-10-11 Grossinger Anton Building construction
US2013367A (en) * 1933-04-29 1935-09-03 Milton W Thompson Building construction
US2427780A (en) * 1944-06-10 1947-09-23 Mcdowell & Torrence Lumber Com Air conditioning of buildings by passing air through hollow foundation blocks
US2465184A (en) * 1946-09-18 1949-03-22 William N Alderman Building heating system

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4075866A (en) * 1977-01-07 1978-02-28 General Motors Corporation Refrigerator defroster-humidifier
US4411255A (en) * 1981-01-06 1983-10-25 Lee Kenneth S Passive thermal storage wall structures for heating and cooling buildings
DE4124982A1 (de) * 1991-07-27 1993-01-28 Karl Heinz Vahlbrauk Vorrichtung zur klimatisierung von raeumen
EP1018625A2 (de) * 1999-01-08 2000-07-12 WINTERMANTEL, Erich Strömungskanal
EP1018625A3 (de) * 1999-01-08 2001-06-06 WINTERMANTEL, Erich Strömungskanal
US6269598B1 (en) 1999-01-08 2001-08-07 Wintermantel, Brich Flow channel structures, buildings incorporating flow channel structures, and methods of forming flow channel structures
DE102007016798A1 (de) 2007-04-05 2008-10-16 Aka Ziegelgruppe Gmbh Mauerstein, Verfahren zu seiner Herstellung und mit dem Mauerstein aufgebautes Gebäude
US20150176852A1 (en) * 2012-11-30 2015-06-25 C'stec Corporation Wall, system of highly clean rooms, production method thereof and construction
US10677483B2 (en) * 2012-11-30 2020-06-09 C'stec Corporation Wall, system of highly clean rooms, production method thereof and construction
US11402108B2 (en) 2012-11-30 2022-08-02 Akira Ishibashi Wall, system of highly clean rooms, production method thereof and construction
US20150129163A1 (en) * 2013-11-12 2015-05-14 David W. Schonhorst System for the Regulation of the Internal Temperature of a Structure
US9605863B2 (en) * 2013-11-12 2017-03-28 David W. Schonhorst System for the regulation of the internal temperature of a structure
US20170167738A1 (en) * 2015-04-07 2017-06-15 Brown University Apparatus and method for passively cooling an interior
US10704794B2 (en) * 2015-04-07 2020-07-07 Brown University Apparatus and method for passively cooling an interior
US11209178B2 (en) 2015-04-07 2021-12-28 Brown University Apparatus and method for passively cooling an interior
US11747029B2 (en) 2015-04-07 2023-09-05 Brown University Apparatus and method for passively cooling an inferior
US11560710B2 (en) 2018-08-31 2023-01-24 Techstyle Materials, Inc. Multifunctional system for passive heat and water management
US11851871B2 (en) 2018-08-31 2023-12-26 Techstyle Materials, Inc. Multifunctional system for passive heat and water management
DE102019131834A1 (de) * 2019-11-25 2021-05-27 Erlus Aktiengesellschaft Lüftungsnetzwerk für ein Gebäude

Also Published As

Publication number Publication date
BR6567710D0 (pt) 1973-03-08
DE1454548A1 (de) 1969-03-13
ES310487A1 (es) 1965-07-01

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