CA2796658A1 - System and method for ventilating a defined space - Google Patents

System and method for ventilating a defined space Download PDF

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Publication number
CA2796658A1
CA2796658A1 CA2796658A CA2796658A CA2796658A1 CA 2796658 A1 CA2796658 A1 CA 2796658A1 CA 2796658 A CA2796658 A CA 2796658A CA 2796658 A CA2796658 A CA 2796658A CA 2796658 A1 CA2796658 A1 CA 2796658A1
Authority
CA
Canada
Prior art keywords
defined space
outside
temperature
control unit
absolute humidity
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
CA2796658A
Other languages
French (fr)
Inventor
Andreas Pfister
Mike Hoeglund
Lai Kim Lim
Elisabet Ehn
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.)
DRYVENT SOLUTIONS OF SCANDINAVIA AB
Original Assignee
DRYVENT SOLUTIONS OF SCANDINAVIA AB
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 DRYVENT SOLUTIONS OF SCANDINAVIA AB filed Critical DRYVENT SOLUTIONS OF SCANDINAVIA AB
Publication of CA2796658A1 publication Critical patent/CA2796658A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/70—Drying or keeping dry, e.g. by air vents
    • E04B1/7069—Drying or keeping dry, e.g. by air vents by ventilating
    • 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
    • F24F11/0001—Control or safety arrangements for ventilation
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/70—Drying or keeping dry, e.g. by air vents
    • 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
    • F24F11/46—Improving electric energy efficiency or saving
    • 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
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • 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
    • F24F11/76—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 by means responsive to temperature, e.g. bimetal springs
    • 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
    • F24F11/77—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 by controlling the speed of ventilators
    • 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
    • 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
    • F24F2110/10—Temperature
    • 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
    • F24F2110/10—Temperature
    • F24F2110/12—Temperature of the outside air
    • 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
    • F24F2110/20—Humidity
    • 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
    • F24F2110/20—Humidity
    • F24F2110/22—Humidity of the outside air

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Signal Processing (AREA)
  • Architecture (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Ventilation (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The present invention relates to a system (100) for ventilating a defined space (102), such as for example an enclosed or at least partly enclosed basement, crawlspace or attic. The system (100) comprises a control unit (110) connected to at least one inside sensor (104), at least one outside sensor (106) and a controllable fan (108), the control unit (110) being configured to operate the controllable fan (102) if the absolute humidity (AHout) outside of the defined space (102) is lower or equal to the absolute humidity (AHin) within the defined space (102), and the temperature (Tin) within the defined space (102) is above a predetermined temperature when the temperature (Tout) outside of the defined space (102) is below the temperature (Tin) within the defined space (102). Advantages of the invention include energy efficient ventilation of the defined space and a high level of protecting from moisture related problems.

Claims (12)

1. A system (100) for ventilating a defined space (102), comprising:
- at least one inside sensor (104) configured to measure temperature (T in) and relative humidity (RH in) within the defined space (102);
- at least one outside sensor (106) configured to measure temperature (T out) and relative humidity (RH out) outside of the defined space (102);
- a controllable fan (108) adapted to ventilate the defined space (102);
and - a control unit (110) connected to the at least one inside sensor (104), the at least one outside sensor (106) and the controllable fan (108), the control unit (110) being configured to determine absolute humidity (AH in) within the defined space (102) and absolute humidity (AH out) outside of the defined space (102), wherein the control unit (110) is further configured to operate the controllable fan (108) if:
- the absolute humidity (AH out) outside of the defined space (102) is lower or equal to the absolute humidity (AH in) within the defined space (102), and - the temperature (T in) within the defined space (102) is above a predetermined temperature threshold when the temperature (T out) outside of the defined space (102) is below the temperature (T in) within the defined space (102).
2. System (100) according to claim 1, wherein the control unit (110) is further configured to only operate the controllable fan (108) if also the temperature (T out) outside the defined space (102) is above a predetermined temperature threshold when the temperature (T out) outside of the defined space (102) is below the temperature (T in) within the defined space (102).
3. System (100) according to any of claims 1 or 2, wherein the predetermined temperature threshold is within the range of 3 - 10 °C, preferably 4 - 8 °C and most preferably 5 - 6 °C.
4. System (100) according to any one of the preceding claims, wherein the defined space (102) is selected from a group comprising a basement, a crawlspace, a boat, an attic, a storage room, a caravan, a trailer, a cabin, a container.
5. System (100) according to any one of the preceding claims, wherein the system (100) comprises at least two outside sensors (106, 106') arranged on opposite sides (102a, 102b) of the defined space (102).
6. System (100) according to any one of the preceding claims, wherein the system (100) further comprises at least one controllable valve (112) connected to the control unit (110), and the control unit (110) is further configured to close the at least one controllable valve (112) if the absolute humidity (AH out) outside of the defined space (102) is higher than the absolute humidity (AH in) within the defined space (102).
7. System (100) according to claim 6, wherein the system (100) further comprises a dehumidifier (114) connected to and controllable by the control unit (110), the control unit (110) further being configured to close the at least one valve (112) and operate the dehumidifier (114) if the relative humidity (RH in) within the defined space (102) is above a predefined humidity threshold.
8. System (100) according to claim 7, wherein the predetermined humidity threshold is within the range of 50 - 90 %, preferably 60 - 80 % and most preferably 65 - 75 %.
9. System (100) according to any one of the preceding claims, wherein the system (100) further comprises an operator accessible logger (116) connected to the control unit (110) and configured to log data from the inside and/or outside sensor(s) (104, 106, 106').
10. Method for ventilating a defined space (102), the method comprising the steps of:

- acquiring (S1) temperature (T in) and relative humidity (RH in) within the defined space (102) using at least one inside sensor (104);
- acquiring (S2) temperature (T out) and relative humidity (RH out) outside of the defined space (102) using at least one outside sensor (106);
- determining (S3) absolute humidity (AH in) within the defined space (102);
- determining (S4) absolute humidity (AH out) outside of the defined space (102); and - operating (S5) a controllable fan (108) if:
- the absolute humidity (AH out) outside of the defined space (102) is lower or equal to the absolute humidity (AH in) within the defined space (102), and - the temperature (T in) within the defined space (102) is above a predetermined temperature threshold when the temperature (T out) outside of the defined space (102) is below the temperature (T in) within the defined space (102).
11. Method according to claim 10, wherein the controllable fan (108) is operable only if also the temperature (T out) outside the defined space (102) is above a predetermined temperature threshold when the temperature (T out) outside of the defined space (102) is below the temperature (T in) within the defined space (102).
12. Method according to claim 9, further comprising the step of logging (S6) data from the inside and/or outside sensor(s) (104, 106, 106').
CA2796658A 2010-04-29 2011-04-29 System and method for ventilating a defined space Abandoned CA2796658A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE1000435-6 2010-04-29
SE1000435A SE534370C2 (en) 2010-04-29 2010-04-29 System and method for ventilating a confined space
PCT/SE2011/000075 WO2011136713A1 (en) 2010-04-29 2011-04-29 System and method for ventilating a defined space

Publications (1)

Publication Number Publication Date
CA2796658A1 true CA2796658A1 (en) 2011-11-03

Family

ID=44303422

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2796658A Abandoned CA2796658A1 (en) 2010-04-29 2011-04-29 System and method for ventilating a defined space

Country Status (6)

Country Link
US (1) US20130040550A1 (en)
CA (1) CA2796658A1 (en)
FI (1) FI20126173L (en)
NO (1) NO20121200A1 (en)
SE (1) SE534370C2 (en)
WO (1) WO2011136713A1 (en)

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AU2011235604B2 (en) * 2010-03-31 2015-09-17 Sisacs Holdings Ltd Super integrated security and air cleansing systems (SISACS)
AT513405A1 (en) * 2012-08-20 2014-04-15 Theodor Ernst Seebacher Combined dehumidifier & fan air heater
US9582011B2 (en) * 2012-09-14 2017-02-28 Paul Stuart & Associates, Llc. Integrated attic ventilation, air conditioning and heating system electronic controller and system and method for use of same
US10520205B2 (en) * 2013-03-13 2019-12-31 Digi International Inc. Thermostat
CA2914797A1 (en) * 2013-05-06 2014-11-13 Green Revolution Cooling, Inc. System and method of packaging computing resources for space and fire-resistance
US10458669B2 (en) 2017-03-29 2019-10-29 Johnson Controls Technology Company Thermostat with interactive installation features
WO2018191688A2 (en) 2017-04-14 2018-10-18 Johnson Controls Techology Company Thermostat with exhaust fan control for air quality and humidity control
US10837665B2 (en) 2017-04-14 2020-11-17 Johnson Controls Technology Company Multi-function thermostat with intelligent ventilator control for frost/mold protection and air quality control
US10731885B2 (en) 2017-04-14 2020-08-04 Johnson Controls Technology Company Thermostat with occupancy detection via proxy measurements of a proxy sensor
US10866003B2 (en) 2017-04-14 2020-12-15 Johnson Controls Technology Company Thermostat with preemptive heating, cooling, and ventilation in response to elevated occupancy detection via proxy
WO2018191699A1 (en) 2017-04-14 2018-10-18 Johnson Controls Technology Company Multi-function thermostat with intelligent supply fan control for maximizing air quality and optimizing energy usage
US10712038B2 (en) 2017-04-14 2020-07-14 Johnson Controls Technology Company Multi-function thermostat with air quality display
US11131474B2 (en) 2018-03-09 2021-09-28 Johnson Controls Tyco IP Holdings LLP Thermostat with user interface features
DE102020116651B4 (en) * 2020-06-24 2023-06-01 Aco Ahlmann Se & Co. Kg Building protection system and procedures

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Also Published As

Publication number Publication date
SE1000435A1 (en) 2011-07-26
WO2011136713A1 (en) 2011-11-03
NO20121200A1 (en) 2012-10-16
US20130040550A1 (en) 2013-02-14
FI20126173L (en) 2012-11-09
SE534370C2 (en) 2011-07-26

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Legal Events

Date Code Title Description
FZDE Discontinued

Effective date: 20170501