WO1999041553A1 - Hygrometre permettant une regulation de l'humidite et de la ventilation - Google Patents

Hygrometre permettant une regulation de l'humidite et de la ventilation Download PDF

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Publication number
WO1999041553A1
WO1999041553A1 PCT/DK1999/000051 DK9900051W WO9941553A1 WO 1999041553 A1 WO1999041553 A1 WO 1999041553A1 DK 9900051 W DK9900051 W DK 9900051W WO 9941553 A1 WO9941553 A1 WO 9941553A1
Authority
WO
WIPO (PCT)
Prior art keywords
hygrometer
humidity
representation signal
relative humidity
temperature
Prior art date
Application number
PCT/DK1999/000051
Other languages
English (en)
Inventor
Hänne KUIPERS
Original Assignee
Alka Electronic Aps
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 Alka Electronic Aps filed Critical Alka Electronic Aps
Priority to AU22655/99A priority Critical patent/AU2265599A/en
Publication of WO1999041553A1 publication Critical patent/WO1999041553A1/fr

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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
    • 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
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/52—Indication arrangements, e.g. displays
    • 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

Definitions

  • the present invention relates to a hygrometer according to the preamble of claim 1 and 6.
  • Controlling the indoor climate is in itself a difficult task since the desired result is inherently difficult to define. This not only applies to the method by which the desired result is obtained but also to the desired goal which is equally difficult to define as it depends on the parameters chosen and determined with the purpose of obtaining an optimal climate for the individual person.
  • controllable variation parameters may be temperature, humidity, air circulation speeds in indoor rooms and radiation asymmetry generated by e.g. windows or floors .
  • an adjustment of some of the above- mentioned parameters may influence the other parameters in an undesirable direction or at least towards a non- predictable end condition.
  • a problem in connection with many indoor environments is that high humidity provides improved living, conditions for e.g. dust mites. Since a large part of the population suffers more or less from allergy towards dust mites, it is necessary to prevent the existence of the dust mites to the extent that it is possible. This could typically be done by ventilating air with the purpose of reducing relative humidity below a given limit value.
  • the hygrometer comprises an input for a first temperature representation signal and an input for a first humidity representation signal, said hygrometer comprising means for computing of relative humidity as a function of a first temperature representation signal and a first humidity representation signal, and the hygrometer further comprises a least one further input for an further humidity representation signal, and said hygrometer comprising means for computing and indicating of relative humidity as a function of the first temperature representation signal (Tl) and the further humidity representation signal (H2) , it is possible for the hygrometer to produce a clear and easily interpretable display of whether the outdoor relative humidity may cause a reduction of the indoor humidity if a ventilation is carried out.
  • the invention takes into account that outdoor humidity often differs from indoor humidity since it in according to the invention is assumed that air ventilation from the outside to the inside causes a change in relative humidity as the air temperature will usually adapt to the prevailing first indoor temperature if the indoor and outdoor temperatures differ significantly.
  • the invention is particularly advantageous in connection with ventilation of a room with a given relative humidity since knowledge of the outdoor relative humidity does not provide any indication of whether ventilation will be useful or not .
  • High outdoor relative humidity may thus easily cause a lower relative indoor humidity if the 4
  • the invention provides the opportunity to decide whether ventilation is advisable or not with great accuracy.
  • the invention may basically be used to obtain an increase or a reduction of humidity since the well-being of a person in an indoor environment would in reality depend on an interval of relative humidity and an underlying desire of a given room temperature, all things being equal.
  • the invention is particularly useful in connection with allergy afflicted homes in which dust mites must be kept at a minimum. Dust mites reproduce and live poorly below a certain limit value of relative humidity. Information indicating whether relative humidity may be reduced or not thus constitutes a valuable parameter if the number of dust mites is to be kept at a minimum.
  • the invention is based on the assumption, or rather approximation, that a room being ventilated will subsequently be capable of heating or cooling the ventilated air to the room (typically indoor) temperature
  • the air ventilated from the outside to the inside will assume the indoor temperature - it also becomes possible to provide the user of the hygrometer with a knowledge of whether relative humidity may be changed by ventilation, just as it will in reality provide the user with a surprisingly accurate estimate of whether the room will have a relative humidity below or above the limit value determining the existence or not of the dust mites after ventilation.
  • the invention offers a particularly effective ventilation estimate through surprisingly simple technical measures.
  • the invention may also be modified to carry out more or less complicated adjustments when computing the ventilation indication.
  • temperature representation and humidity signals may be fed to the hygrometer wireless.
  • the hygrometer comprises a test switch, which creates an acoustic or visual indication of whether ventilation is advisable or not when manually activated, it is possible to achieve a particularly simple technical solution according to the invention.
  • the hygrometer comprises a display unit for displaying of a relative humidity as a function of the first temperature representation signal and the first humidity representation signal and said hygrometer further comprises means for displaying of a relative humidity as a function of the first temperature representation signal (Tl) and the further humidity representation signal (H2)
  • Tl first temperature representation signal
  • H2 further humidity representation signal
  • a displaying will mainly be a numeric estimate .
  • the display unit also comprises means to display the average level of an indoor relative humidity over a given period of time, a particularly advantageous embodiment of the invention is created since an average displaying of the relative humidity over a given period of time will produce an improved estimate of ventilation in relation to e.g. dust mites .
  • the ideal period of time is e.g. a week or a couple of days as this will provide the user with an impression of how more permanent humidity conditions over a longer period of time will contribute to reducing the survival potential of the dust mites.
  • This embodiment of the invention thus provides the user with a more solid basis for determining whether ventilation should be initiated or not since a momentary display of the relative humidity, depending on the purpose of the potential ventilation, does not always offer a good indication of the condition of the room over a long period of time.
  • the hygrometer further comprises at least one input for a further temperature representation signal, it is possible to obtain the advantage of combining the display with both indoor and outdoor temperatures.
  • the hygrometer comprising a display unit and said hygrometer comprising means for computing and displaying a relative humidity as a 8
  • the hygrometer comprises means for computation and displaying a relative humidity between an indoor temperature representation signal and an outdoor humidity representation signal
  • the outdoor humidity representation signal and possible temperature representation signals are fed to the hygrometer from an externally connected sensor, it is possible to obtain a particularly advantageous and practical embodiment of the invention through a simple hardware set-up.
  • fig. 1 shows an example of the application of a hygrometer according to the invention
  • fig. 2 shows the basic set-up according to an embodiment of the invention.
  • a hygrometer 1 is installed in an indoor room.
  • the room may for instance be ventilated by a window 3 being opened or closed or by a passive or active air duct 2.
  • the hygrometer 1 will be able to produce an indication of how efficient a potential ventilation in fact will be.
  • Figure 2 shows a principle view of a preferred embodiment of the invention.
  • the hygrometer 1 features a display unit - a display 11 - that at least comprises means to show the indoor relative humidity and "outdoor" relative humidity as a function of the indoor temperature .
  • the hygrometer 1 is connected to four external sensors through connecting wires 12, 14, 16, 18.
  • the sensors comprise an outdoor humidity sensor 13, an indoor humidity sensor 17, an outdoor temperature sensor 15 and an indoor temperature sensor 19 that are individually connected to the hygrometer through connecting wires 12, 16, 14 and 18.
  • the hygrometer consists of display drivers, power supply, a microprocessor arrangement etc. as generally known within the art.
  • the microprocessor arrangement comprises at least software routines for computation of the indoor relative humidity and the relative humidity between outdoor humidity in relation to the indoor measured temperature.
  • typical ceramic ohm humidity sensors 13, 17 have been 10
  • the hygrometer may feature various other options within the scope of the invention.
  • An example of this is that the numeric display of relative humidity may alternatively be replaced by a simple visual LED indicator or an acoustic statement of whether ventilation is advisable or not.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Ventilation (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

L'invention se rapporte à un hygromètre comportant une unité d'affichage ainsi que des moyens de calcul et d'affichage d'une humidité relative en fonction d'un signal représentant la température intérieure et d'un signal représentant l'humidité intérieure. Cet hygromètre comprend un moyen de calcul et d'affichage d'une humidité relative entre un signal représentant la température intérieure et un signal représentant l'humidité extérieure.
PCT/DK1999/000051 1998-02-02 1999-02-01 Hygrometre permettant une regulation de l'humidite et de la ventilation WO1999041553A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU22655/99A AU2265599A (en) 1998-02-02 1999-02-01 Hygrometer for humidity and ventilation control

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK0138/98 1998-02-02
DK13898 1998-02-02

Publications (1)

Publication Number Publication Date
WO1999041553A1 true WO1999041553A1 (fr) 1999-08-19

Family

ID=8090184

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK1999/000051 WO1999041553A1 (fr) 1998-02-02 1999-02-01 Hygrometre permettant une regulation de l'humidite et de la ventilation

Country Status (2)

Country Link
AU (1) AU2265599A (fr)
WO (1) WO1999041553A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6637933B1 (en) * 2002-03-01 2003-10-28 Yi-Chia Liao Apparatus for measuring outdoor temperature and humidity
FR2897420A1 (fr) * 2006-02-15 2007-08-17 Marie Yannick Marcelle Delons Fonctionnement et dispositif de controle pour une installation d'extraction d'humidite dans un local
WO2007139507A1 (fr) * 2006-06-01 2007-12-06 Ventotech Ab Ventilation pour déshumidification et régulation de la circulation d'air dans des structures closes
WO2008039149A1 (fr) * 2006-09-29 2008-04-03 Lindenstone Innovation Ab Procédé et dispositif de protection d'un espace des dégâts occasionnés par l'humidité
FR3001528A1 (fr) * 2013-01-28 2014-08-01 Andre Jean Marie Pilot Systeme regulant l'humidite d'un local par ventilation en comparant des taux d'humidite et les temperatures relatives de l'exterieur et de l'interieur du local
CN105320170A (zh) * 2015-11-30 2016-02-10 国网河南偃师市供电公司 一种变电站湿度自动控制装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2194041A (en) * 1936-10-15 1940-03-19 Gen Motors Corp Air conditioning
GB2209070A (en) * 1987-08-25 1989-04-26 System Controls Humidity and ventilation control
US5176316A (en) * 1990-12-14 1993-01-05 Whitman Robert E System for alleviating and reducing moisture beneath a roofing structure
US5355323A (en) * 1991-02-25 1994-10-11 Samsung Electronics Co., Ltd. Humidity control method for an air conditioner which depends upon weather determinations
US5881951A (en) * 1997-09-18 1999-03-16 Carpenter; Peter W. Ventilator for beneath enclosed structures

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2194041A (en) * 1936-10-15 1940-03-19 Gen Motors Corp Air conditioning
GB2209070A (en) * 1987-08-25 1989-04-26 System Controls Humidity and ventilation control
US5176316A (en) * 1990-12-14 1993-01-05 Whitman Robert E System for alleviating and reducing moisture beneath a roofing structure
US5355323A (en) * 1991-02-25 1994-10-11 Samsung Electronics Co., Ltd. Humidity control method for an air conditioner which depends upon weather determinations
US5881951A (en) * 1997-09-18 1999-03-16 Carpenter; Peter W. Ventilator for beneath enclosed structures

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6637933B1 (en) * 2002-03-01 2003-10-28 Yi-Chia Liao Apparatus for measuring outdoor temperature and humidity
FR2897420A1 (fr) * 2006-02-15 2007-08-17 Marie Yannick Marcelle Delons Fonctionnement et dispositif de controle pour une installation d'extraction d'humidite dans un local
WO2007093693A1 (fr) * 2006-02-15 2007-08-23 Marie Yannick Delons Fonctionnement et dispositif de controle pour une installation d'extraction d'humidite dans un local
WO2007139507A1 (fr) * 2006-06-01 2007-12-06 Ventotech Ab Ventilation pour déshumidification et régulation de la circulation d'air dans des structures closes
WO2008039149A1 (fr) * 2006-09-29 2008-04-03 Lindenstone Innovation Ab Procédé et dispositif de protection d'un espace des dégâts occasionnés par l'humidité
FR3001528A1 (fr) * 2013-01-28 2014-08-01 Andre Jean Marie Pilot Systeme regulant l'humidite d'un local par ventilation en comparant des taux d'humidite et les temperatures relatives de l'exterieur et de l'interieur du local
CN105320170A (zh) * 2015-11-30 2016-02-10 国网河南偃师市供电公司 一种变电站湿度自动控制装置

Also Published As

Publication number Publication date
AU2265599A (en) 1999-08-30

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