US20060032241A1 - Method and apparatus for air conditioning - Google Patents

Method and apparatus for air conditioning Download PDF

Info

Publication number
US20060032241A1
US20060032241A1 US10/962,270 US96227004A US2006032241A1 US 20060032241 A1 US20060032241 A1 US 20060032241A1 US 96227004 A US96227004 A US 96227004A US 2006032241 A1 US2006032241 A1 US 2006032241A1
Authority
US
United States
Prior art keywords
air
oxygen
air conditioning
nitrogen
conditioning system
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
US10/962,270
Inventor
Alexandre Gontcharov
Valentina Gontcharova
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of US20060032241A1 publication Critical patent/US20060032241A1/en
Abandoned legal-status Critical Current

Links

Images

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
    • F24F3/12—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 characterised by the treatment of the air otherwise than by heating and cooling
    • 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
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/33—Responding to malfunctions or emergencies to fire, excessive heat or smoke
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/50—Air quality properties
    • F24F2110/65—Concentration of specific substances or contaminants
    • F24F2110/76—Oxygen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/60—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by adding oxygen
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Definitions

  • This invention relates to the air conditioning and can be used for the refreshment of indoor air in buildings, individual homes, offices and production facilities.
  • An atmosphere control apparatus as per Canadian Patent 1281795, employs two separate chambers with a large storage capacity. Cool and warm air, supplied by an air conditioner, is stored in the first and second chambers respectively. In order to create the required temperature, cool or warm air is selectively blown outward into the compartment. This method has limited applications and also does not have provision to refresh indoor air because the air conditioner produces warm and cold air for these compartments.
  • a significant health improvement was obtained through the enrichment of air with purified oxygen, which is delivered through the hoses and masks to the head—facial area of hospital patients or other recipients; refer to the U.S. Pat. Nos. 4,991,616 and 4,681,099.
  • the U.S. Pat. No. 5,460,175 describes the distribution method of the mixture of air with up to 95% oxygen to the aircraft crewmembers.
  • the most advanced air-oxygen breathing mixtures and method of their optimization and delivery are described in the U.S. Pat. No. 6,131,569 and PCT/DE97/00324.
  • the above-mentioned invention is based on the regulation of oxygen content in the air depending on the recipient's measured physical condition and performance.
  • the invention per the U.S. Pat. No. 6,726,558 provides systems and methods of supplying oxygen-enriched air to an enclosed space or compartment.
  • the systems and methods may distill oxygen from ambient air by a molecular sieve pressure cycle mechanism, such as a pressure swing absorption, may generate oxygen from water using electricity or may use oxygen enriched air produced by membrane filtration.
  • the invention helps people improve their wellness, productivity and comfort, improve performance of mental and/or physical tasks, increase their alertness, quality of life and pleasure, reduce their drowsiness, and aid in curing and preventing disease by increasing the percentage of oxygen in the enclosed space to a beneficial and safe level.
  • this method does not fully refresh the indoor air.
  • Air is a mixture of 21% oxygen (O 2 ) and 78% nitrogen (N 2 ). Only oxygen is consumed during breathing by individuals. However, the nitrogen content in the air is 3.7 times greater than oxygen. Therefore, nitrogen accumulates 3.7 times more airborne contaminants in indoor air.
  • purified oxygen and nitrogen or mixture of these gases should be injected into the air passages of the air conditioning system. Then, the air conditioning system would distribute refreshed air to all the recipients simultaneously.
  • purified oxygen is vital for the normal functioning of our bodies.
  • purified nitrogen in combination with oxygen is 3.7 times more effective to obtain refreshing effect than the injection of just oxygen.
  • Purified compressed or liquid oxygen and nitrogen can be used for refreshment of indoor air.
  • the injection of liquid nitrogen and oxygen would reduce the consumption of electric energy by the air conditioning system as they have low temperature.
  • the proposed method is increasing oxygen content in the air conditioning system. It's well known that by the end of a business day most people gain fatigue and feel stressed. As a result, health and productivity are negatively affected. Fresh air is essential in such situations.
  • the oxygen content can be increased from 20-21% at the beginning of a business day up to 21.1-25% by the end of a day, with the provision to increase oxygen content up to 100% in the case of special needs.
  • any amount of purified oxygen and nitrogen will improve the quality of the indoor air.
  • the percentage of the oxygen and nitrogen should be determined relatively to the airflow of the air conditioning system. As per proposed method, this amount should make up between 2 to 25% of the airflow produced by the air conditioning system. For example, if the recommended productivity of the air conditioning system is 15 to 20 cubic feet per minute (cfm.) per person, oxygen and nitrogen mixture should be 0.3 to 5 cfm per person. In the case of special needs, the percentage can be increased up to 100%, but it is not economical.
  • the implementation of the proposed method can also significantly reduce the spread of fire if nitrogen content in the air conditioning system is increased up to 100% in the case of fire alarm, after the personnel evacuation.
  • the apparatus for the proposed method consists of the regular air conditioner, air passages, control board and air inlets, comprises storage units for oxygen and nitrogen, that are connected to the air passages through regulating valves and electronically connected to the oxygen analyzer and control board.
  • the invention is illustrated by way of example and not limited in the attached figure of the air conditioning apparatus for the building with four floors.
  • each floor is marked ( 1 ) through ( 4 ); and the air conditioner ( 5 ) is connected to each floor by the air passage ( 6 ).
  • Each floor is equipped with the air inlet ( 7 ) for the fresh air.
  • each floor, as well as individual compartment on the floor, can be equipped with the exhaust ventilation ( 8 ) that is placed in the area that generates most significant amount of contaminants such as kitchen in the house, printing area in the office or welding or painting area in the production shop.
  • the main air passage ( 6 ) is connected to the compressed or liquid oxygen ( 11 ) and nitrogen ( 12 ) storage units through the regulating valves ( 14 ) and ( 15 ) respectively.
  • the oxygen analyzer ( 10 ) is placed in the main air passage ( 6 ) and is electronically connected to the control board ( 13 ).
  • the control board ( 13 ) is connected electronically to the regulating valves ( 14 ) and ( 15 ), air conditioner ( 5 ), oxygen analyzers ( 9 ) and ( 10 ).
  • the purified oxygen and nitrogen in the ratio 1:3.7 are injected into the main air passage ( 6 ) to maintain the normal concentration of oxygen (21%) and nitrogen (78%) in the indoor air.
  • Purified mixture of oxygen and nitrogen create the effect of fresh outdoor air inside the building and eliminate the root cause of the “Sick Building Syndrome”.
  • purified oxygen and nitrogen dilute contaminants inside the building and purge them away through the exhaust ventilation ( 8 ) and natural imperfections such as leakage through windows and doors.
  • purified oxygen and nitrogen or oxygen-nitrogen mixture should make up 2 to 25% of the airflow produced by the air conditioning system.
  • the oxygen content in the indoor air can be increased from 20-21% in the beginning to 21.1-25% by the end of a workday using the control board ( 13 ).
  • the proportional change of oxygen-nitrogen injection if the mixture is used or the increase in oxygen can be used to change the oxygen content in the air.
  • the concentration of oxygen is controlled by the oxygen analyzer ( 10 ) and is regulated automatically by the control board ( 13 ) through valves ( 14 ) and ( 15 ). If the proposed method is used in the hospital, the concentration of oxygen can be increased up to 100% in the case of emergency and would allow the delivery of enriched air to all the recipients simultaneously.
  • Another advantage of the proposed method and apparatus is that in the case of fire alarm, the concentration of nitrogen can be increased up to 100% after the evacuation of all personnel to stop the spread of fire.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

The invention proposes a method and apparatus for the air conditioning and can be used for the buildings, individual homes, offices and production facilities wherein purified oxygen and nitrogen or mixture of these gases are injected into the air passage of the air conditioning system from the storage units that are connected to the air passages through the regulating valves and linked electronically to the control board and oxygen analyzer with the provision to regulate oxygen content during the day from 20-21% up to 100%.

Description

  • This application claims the benefit of the prior filed Canadian Application No. 2,472,752 of Sep. 10, 2004.
    • BACKGROUND OF THE INVENTION
  • This invention relates to the air conditioning and can be used for the refreshment of indoor air in buildings, individual homes, offices and production facilities.
  • Various air conditioning systems have been widely used to regulate the temperature and create comfortable conditions inside homes and buildings. However, air conditioning systems have caused so called “Sick Building Syndrome” which has resulted due to the accumulation of harmful impurities in indoor air. The symptoms attributed to this syndrome include headache, nausea, shortness of breath, sinus congestion, and eye-nose-throat irritation.
  • Filters and dehumidifiers have been used to remove airborne dust particles and moisture in order to clean the air in individual systems, refer the U.S. Pat. No. 5,749,359, and stationary systems, refer to the U.S. Pat. Nos. 5,502,975 and 6,589,323. However, the cleaning of indoor air does not result in the same quality, as it would be by replacing it with the outdoor one. The refreshment of indoor air can be done by employing the ventilation system to bring outdoor air inside. However, this method can further deteriorate the quality of indoor air in the case of heavy smog. Doctors often advise people with heart and breathing problems, who live in large cities, that are affected by smog, such as Toronto and Hamilton in Canada, New York and Buffalo in the USA, Mexico City, Deli in India and Rome in Italy to stay indoors during hot summer days.
  • To prevent the contamination of indoor air with polluted outdoor one, the latter one is used mostly for the heat exchange, as per inventions described by the Canadian Patents 2321243 and 1248807. An atmosphere control apparatus, as per Canadian Patent 1281795, employs two separate chambers with a large storage capacity. Cool and warm air, supplied by an air conditioner, is stored in the first and second chambers respectively. In order to create the required temperature, cool or warm air is selectively blown outward into the compartment. This method has limited applications and also does not have provision to refresh indoor air because the air conditioner produces warm and cold air for these compartments.
  • A significant health improvement was obtained through the enrichment of air with purified oxygen, which is delivered through the hoses and masks to the head—facial area of hospital patients or other recipients; refer to the U.S. Pat. Nos. 4,991,616 and 4,681,099. The U.S. Pat. No. 5,460,175 describes the distribution method of the mixture of air with up to 95% oxygen to the aircraft crewmembers. The most advanced air-oxygen breathing mixtures and method of their optimization and delivery are described in the U.S. Pat. No. 6,131,569 and PCT/DE97/00324. The above-mentioned invention is based on the regulation of oxygen content in the air depending on the recipient's measured physical condition and performance. However, most of these methods and systems were created to deliver the oxygen—air respiratory mixtures through the head—facial area, directly to the face or mouth of the recipients. They can't be used for the air refreshment inside the buildings and homes and to deliver fresh or enriched with oxygen air simultaneously to all the recipients, such as employees or family members.
  • The invention per the U.S. Pat. No. 6,726,558 provides systems and methods of supplying oxygen-enriched air to an enclosed space or compartment. The systems and methods may distill oxygen from ambient air by a molecular sieve pressure cycle mechanism, such as a pressure swing absorption, may generate oxygen from water using electricity or may use oxygen enriched air produced by membrane filtration. The invention helps people improve their wellness, productivity and comfort, improve performance of mental and/or physical tasks, increase their alertness, quality of life and pleasure, reduce their drowsiness, and aid in curing and preventing disease by increasing the percentage of oxygen in the enclosed space to a beneficial and safe level. However, this method does not fully refresh the indoor air. Air is a mixture of 21% oxygen (O2) and 78% nitrogen (N2). Only oxygen is consumed during breathing by individuals. However, the nitrogen content in the air is 3.7 times greater than oxygen. Therefore, nitrogen accumulates 3.7 times more airborne contaminants in indoor air.
    • SUMMARY OF THE INVENTION
  • In order to refresh air and eliminate the root cause of the “Sick Building Syndrome” purified oxygen and nitrogen or mixture of these gases should be injected into the air passages of the air conditioning system. Then, the air conditioning system would distribute refreshed air to all the recipients simultaneously.
  • The injection of purified oxygen is vital for the normal functioning of our bodies. However, the injection of purified nitrogen in combination with oxygen is 3.7 times more effective to obtain refreshing effect than the injection of just oxygen. Purified compressed or liquid oxygen and nitrogen can be used for refreshment of indoor air. Furthermore, the injection of liquid nitrogen and oxygen would reduce the consumption of electric energy by the air conditioning system as they have low temperature.
  • Further development of the proposed method is increasing oxygen content in the air conditioning system. It's well known that by the end of a business day most people gain fatigue and feel stressed. As a result, health and productivity are negatively affected. Fresh air is essential in such situations. In accordance with the proposed method, the oxygen content can be increased from 20-21% at the beginning of a business day up to 21.1-25% by the end of a day, with the provision to increase oxygen content up to 100% in the case of special needs.
  • Any amount of purified oxygen and nitrogen will improve the quality of the indoor air. In order to feel significant refreshing effect and improvement in the indoor air, the percentage of the oxygen and nitrogen should be determined relatively to the airflow of the air conditioning system. As per proposed method, this amount should make up between 2 to 25% of the airflow produced by the air conditioning system. For example, if the recommended productivity of the air conditioning system is 15 to 20 cubic feet per minute (cfm.) per person, oxygen and nitrogen mixture should be 0.3 to 5 cfm per person. In the case of special needs, the percentage can be increased up to 100%, but it is not economical.
  • The implementation of the proposed method can also significantly reduce the spread of fire if nitrogen content in the air conditioning system is increased up to 100% in the case of fire alarm, after the personnel evacuation.
  • The apparatus for the proposed method consists of the regular air conditioner, air passages, control board and air inlets, comprises storage units for oxygen and nitrogen, that are connected to the air passages through regulating valves and electronically connected to the oxygen analyzer and control board.
    • BRIEF DESCRIPTION OF THE DRAWING
  • The invention is illustrated by way of example and not limited in the attached figure of the air conditioning apparatus for the building with four floors.
    • DETAILED DESCRIPTION OF THE PREFERRED INVENTION AND EMBODIMENT
  • In the figure, that illustrates the preferred embodiment, each floor is marked (1) through (4); and the air conditioner (5) is connected to each floor by the air passage (6). Each floor is equipped with the air inlet (7) for the fresh air. Also each floor, as well as individual compartment on the floor, can be equipped with the exhaust ventilation (8) that is placed in the area that generates most significant amount of contaminants such as kitchen in the house, printing area in the office or welding or painting area in the production shop. The main air passage (6) is connected to the compressed or liquid oxygen (11) and nitrogen (12) storage units through the regulating valves (14) and (15) respectively. The oxygen analyzer (10) is placed in the main air passage (6) and is electronically connected to the control board (13). The control board (13) is connected electronically to the regulating valves (14) and (15), air conditioner (5), oxygen analyzers (9) and (10).
  • The purified oxygen and nitrogen in the ratio 1:3.7 are injected into the main air passage (6) to maintain the normal concentration of oxygen (21%) and nitrogen (78%) in the indoor air. Purified mixture of oxygen and nitrogen create the effect of fresh outdoor air inside the building and eliminate the root cause of the “Sick Building Syndrome”. Furthermore, purified oxygen and nitrogen dilute contaminants inside the building and purge them away through the exhaust ventilation (8) and natural imperfections such as leakage through windows and doors. To obtain the significant improvement of the indoor air, purified oxygen and nitrogen or oxygen-nitrogen mixture should make up 2 to 25% of the airflow produced by the air conditioning system.
  • To reduce the fatigue and deterioration of our physical conditions during workday, the oxygen content in the indoor air can be increased from 20-21% in the beginning to 21.1-25% by the end of a workday using the control board (13). The proportional change of oxygen-nitrogen injection, if the mixture is used or the increase in oxygen can be used to change the oxygen content in the air. The concentration of oxygen is controlled by the oxygen analyzer (10) and is regulated automatically by the control board (13) through valves (14) and (15). If the proposed method is used in the hospital, the concentration of oxygen can be increased up to 100% in the case of emergency and would allow the delivery of enriched air to all the recipients simultaneously.
  • Another advantage of the proposed method and apparatus is that in the case of fire alarm, the concentration of nitrogen can be increased up to 100% after the evacuation of all personnel to stop the spread of fire.

Claims (6)

1. A method of air conditioning in homes and buildings that are equipped preferably with the air conditioning system, which comprises the step of injecting of purified oxygen and nitrogen or mixture of these gases into the air passages of the air conditioning system.
2. A method, as claimed in claim 1, which comprises the step of injecting of purified oxygen and nitrogen or mixture of these gases directly into indoor space of individual homes or compartments.
3. A method, as claimed in claim 1, which comprises the step of increasing the oxygen content in mixture of injected gases from 20-21% at the beginning of a day up to 21.1-25% by the end of a day or business shift, with the provision to increase oxygen content up to 100% in the case of special needs.
4. A method, as claimed in claim 1, in which the airflow of purified gases in the airflow of the air conditioning system is regulated in the range of 2 to 25% of airflow of the air conditioning system, with the provision to increase the airflow of purified gases up to 100% of airflow of the air conditioning system in the case of special needs.
5. A method, as claimed in claim 1 which comprises the step of increasing of nitrogen content in the mixture injected into the air passages of the air conditioning system from 1 to 100% in the case of fire alarm, after evacuation of the personnel.
6. An air conditioning apparatus that includes the air conditioner, air passages, control board and air inlets to execute the method as claimed in claim 1, comprises the oxygen and nitrogen storage units that are connected to the air passages through the regulating valves and linked electronically to the control board and oxygen analyzer.
US10/962,270 2004-07-08 2004-10-12 Method and apparatus for air conditioning Abandoned US20060032241A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA002472752A CA2472752C (en) 2004-07-08 2004-07-08 A method of controlling the concentration of purified nitrogen and oxygen in air conditioned space
CA2472752 2004-08-10

Publications (1)

Publication Number Publication Date
US20060032241A1 true US20060032241A1 (en) 2006-02-16

Family

ID=33557694

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/962,270 Abandoned US20060032241A1 (en) 2004-07-08 2004-10-12 Method and apparatus for air conditioning

Country Status (2)

Country Link
US (1) US20060032241A1 (en)
CA (1) CA2472752C (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2136148A1 (en) 2008-06-18 2009-12-23 Amrona AG Device and method for setting the leak rate through the sealing gaps of a rotary heat exchanger
CN103119376A (en) * 2010-05-17 2013-05-22 恩弗里德系统公司 Method and system for improved-efficiency air-conditioning
US9316410B2 (en) 2011-11-17 2016-04-19 Enverid Systems, Inc. Method and system for conditioning air in an enclosed environment with distributed air circulation systems
US9328936B2 (en) 2012-01-10 2016-05-03 Enverid Systems, Inc. Methods and systems for managing air quality and energy use in air-conditioning systems
US9375672B2 (en) 2011-02-09 2016-06-28 Enverid Systems, Inc. Modular, high-throughput air treatment system
US9399187B2 (en) 2012-09-24 2016-07-26 Enverid Systems, Inc. Air handling system with integrated air treatment
CN106247496A (en) * 2016-08-22 2016-12-21 安徽瑞宏信息科技有限公司 A kind of building intelligent indoor apparatus of oxygen supply
US9533250B2 (en) 2011-08-23 2017-01-03 Enverid Systems, Inc. Sorbents for carbon dioxide reduction from indoor air
US9919257B2 (en) 2013-09-17 2018-03-20 Enverid Systems, Inc. Systems and methods for efficient heating of sorbents in an indoor air scrubber
US10086324B2 (en) 2010-05-17 2018-10-02 Enverid Systems, Inc. Method and system for improve-efficiency air-conditioning
US10675582B2 (en) 2012-07-18 2020-06-09 Enverid Systems, Inc. Systems and methods for regenerating adsorbents for indoor air scrubbing
US10792608B2 (en) 2015-08-24 2020-10-06 Enverid Systems, Inc. Scrubber for HVAC system
US10850224B2 (en) 2012-11-15 2020-12-01 Enverid Systems, Inc. Method and system for reduction of unwanted gases in indoor air
US10913026B2 (en) 2015-05-11 2021-02-09 Enverid Systems, Inc. Method and system for reduction of unwanted gases in indoor air
US11110387B2 (en) 2016-11-10 2021-09-07 Enverid Systems, Inc. Low noise, ceiling mounted indoor air scrubber
US11207633B2 (en) 2016-04-19 2021-12-28 Enverid Systems, Inc. Systems and methods for closed-loop heating and regeneration of sorbents
US11541346B2 (en) 2012-05-22 2023-01-03 Enverid Systems, Inc. Efficient use of adsorbents for indoor air scrubbing

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3726154B1 (en) 2019-04-16 2022-10-12 Air Liquide Medical S.A. Method and installation for cooling air-conditioning water by heat exchange with cryogenic liquid

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3102777A (en) * 1962-12-28 1963-09-03 Whirlpool Co Apparatus and method of preserving animal and plant materials
US3415310A (en) * 1967-06-26 1968-12-10 Ind Air Products Co Apparatus for controlling the temperature and oxygen concentration in a compartment
US3758029A (en) * 1972-06-30 1973-09-11 T Yoshida Method and apparatus for air-conditioning
US6418752B2 (en) * 2000-04-17 2002-07-16 Igor K. Kotliar Hypoxic fire prevention and fire suppression systems and breathable fire extinguishing compositions for human occupied environments

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3102777A (en) * 1962-12-28 1963-09-03 Whirlpool Co Apparatus and method of preserving animal and plant materials
US3415310A (en) * 1967-06-26 1968-12-10 Ind Air Products Co Apparatus for controlling the temperature and oxygen concentration in a compartment
US3758029A (en) * 1972-06-30 1973-09-11 T Yoshida Method and apparatus for air-conditioning
US6418752B2 (en) * 2000-04-17 2002-07-16 Igor K. Kotliar Hypoxic fire prevention and fire suppression systems and breathable fire extinguishing compositions for human occupied environments

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8875801B2 (en) 2008-06-18 2014-11-04 Amrona Ag Device for setting the leakage rate for a leakage at a gap-like opening
WO2009153301A1 (en) * 2008-06-18 2009-12-23 Amrona Ag Device for adjusting the leakage rate of a leak at a gap-like opening
CN102057230A (en) * 2008-06-18 2011-05-11 艾摩罗那股份公司 Device for adjusting the leakage rate of a leak at a gap-like opening
JP2011524969A (en) * 2008-06-18 2011-09-08 アムロナ・アーゲー Device for setting the leak rate of a leak in a gap-like opening
AU2009259346B2 (en) * 2008-06-18 2012-04-12 Amrona Ag Device for adjusting the leakage rate of a leak at a gap-like opening
EP2136148A1 (en) 2008-06-18 2009-12-23 Amrona AG Device and method for setting the leak rate through the sealing gaps of a rotary heat exchanger
RU2485413C2 (en) * 2008-06-18 2013-06-20 Амрона Аг Device for regulation of rate of leakage through slotted opening
US10086324B2 (en) 2010-05-17 2018-10-02 Enverid Systems, Inc. Method and system for improve-efficiency air-conditioning
US10730003B2 (en) 2010-05-17 2020-08-04 Enverid Systems, Inc. Method and system for improved-efficiency air-conditioning
CN103119376A (en) * 2010-05-17 2013-05-22 恩弗里德系统公司 Method and system for improved-efficiency air-conditioning
US9375672B2 (en) 2011-02-09 2016-06-28 Enverid Systems, Inc. Modular, high-throughput air treatment system
US9789436B2 (en) 2011-05-17 2017-10-17 Enverid Systems, Inc. Sorbents for carbon dioxide reduction from indoor air
US9533250B2 (en) 2011-08-23 2017-01-03 Enverid Systems, Inc. Sorbents for carbon dioxide reduction from indoor air
US9316410B2 (en) 2011-11-17 2016-04-19 Enverid Systems, Inc. Method and system for conditioning air in an enclosed environment with distributed air circulation systems
US10281168B2 (en) 2011-11-17 2019-05-07 Enverid Systems, Inc. Method and system for conditioning air in an enclosed environment with distributed air circulation systems
US9976760B2 (en) 2011-11-17 2018-05-22 Enverid Systems, Inc. Method and system for conditioning air in an enclosed environment with distributed air circulation systems
US9939163B2 (en) 2012-01-10 2018-04-10 Enverid Systems, Inc. Systems and methods for air-conditioning systems with scrubbing systems including a scrubbing bypass mode
US9328936B2 (en) 2012-01-10 2016-05-03 Enverid Systems, Inc. Methods and systems for managing air quality and energy use in air-conditioning systems
US11541346B2 (en) 2012-05-22 2023-01-03 Enverid Systems, Inc. Efficient use of adsorbents for indoor air scrubbing
US10675582B2 (en) 2012-07-18 2020-06-09 Enverid Systems, Inc. Systems and methods for regenerating adsorbents for indoor air scrubbing
US9399187B2 (en) 2012-09-24 2016-07-26 Enverid Systems, Inc. Air handling system with integrated air treatment
US11608998B2 (en) 2012-09-24 2023-03-21 Enverid Systems, Inc. Air handling system with integrated air treatment
US11890571B2 (en) 2012-11-15 2024-02-06 Enverid Systems, Inc. Method and system for reduction of unwanted gases in indoor air
US10850224B2 (en) 2012-11-15 2020-12-01 Enverid Systems, Inc. Method and system for reduction of unwanted gases in indoor air
US10765990B2 (en) 2013-09-17 2020-09-08 Enverid Systems, Inc. Systems and methods for efficient heating of sorbents in an indoor air scrubber
US9919257B2 (en) 2013-09-17 2018-03-20 Enverid Systems, Inc. Systems and methods for efficient heating of sorbents in an indoor air scrubber
US10913026B2 (en) 2015-05-11 2021-02-09 Enverid Systems, Inc. Method and system for reduction of unwanted gases in indoor air
US10792608B2 (en) 2015-08-24 2020-10-06 Enverid Systems, Inc. Scrubber for HVAC system
US11207633B2 (en) 2016-04-19 2021-12-28 Enverid Systems, Inc. Systems and methods for closed-loop heating and regeneration of sorbents
CN106247496A (en) * 2016-08-22 2016-12-21 安徽瑞宏信息科技有限公司 A kind of building intelligent indoor apparatus of oxygen supply
US11110387B2 (en) 2016-11-10 2021-09-07 Enverid Systems, Inc. Low noise, ceiling mounted indoor air scrubber
US11673090B2 (en) 2016-11-10 2023-06-13 Enverid Systems, Inc. Low noise, ceiling mounted indoor air scrubber

Also Published As

Publication number Publication date
CA2472752A1 (en) 2004-12-01
CA2472752C (en) 2008-01-15

Similar Documents

Publication Publication Date Title
US20060032241A1 (en) Method and apparatus for air conditioning
US6866701B2 (en) Oxygen enrichment of indoor human environments
DE69617477T2 (en) HYPOXIC ROOM SYSTEM AND DEVICE FOR HYPOXIC TRAINING AND THERAPY
CN202032686U (en) System for controlling ambient atmosphere
TW422730B (en) Diffusional gas transfer system and method of using same
US20080173175A1 (en) Oxygen humidifier
West Commuting to high altitude: value of oxygen enrichment of room air
EP1307276B1 (en) Method and apparatus for improving the air quality within a building or enclosed space
US7331342B2 (en) Oxygen humidifier
West Oxygen enrichment of room air to improve well-being and productivity at high altitude
Walkinshaw et al. A brief introduction to passenger aircraft cabin air quality
CN214665043U (en) Portable oxygen enrichment system for respiratory protection
CN109210614A (en) Reduce the air-conditioning device of gas concentration lwevel in confined space
RU2431784C2 (en) Creating breathing atmosphere
JP3445093B2 (en) Oxygen concentrator
JP4594581B2 (en) Humidifier
CA2486202C (en) A method of air conditioning and system for the same
Hui et al. Safe-duration based ventilation and air conditioning system control strategy
CN220778604U (en) Plateau cold region supercharging oxygenation account
EP4027068A1 (en) Installation limiting viral cross contamination of persons in a room and filtering device for such an installation
Pal et al. Button Up Concept–A Need for Community Disaster Preparedness
RU99324U1 (en) HYPERBARIC, OXYGINATED, FUNCTIONALLY ADAPTED (CLIMATICALLY STERILE OR COMFORTABLE) ENVIRONMENT FOR HUMAN OXYGEN AND / OR ANALOGUE
Roulet et al. Ventilation, indoor environment quality and climate—comparison of European and Singapore office buildings
Boschi et al. Aircraft Cabin Indoor Air Environment Requirements
Tishin et al. Air conditioning system based on membrane gas separation technology

Legal Events

Date Code Title Description
STCB Information on status: application discontinuation

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