[go: up one dir, main page]

GB2193308A - Humidity and pollutant control plant for museum cases - Google Patents

Humidity and pollutant control plant for museum cases Download PDF

Info

Publication number
GB2193308A
GB2193308A GB08611306A GB8611306A GB2193308A GB 2193308 A GB2193308 A GB 2193308A GB 08611306 A GB08611306 A GB 08611306A GB 8611306 A GB8611306 A GB 8611306A GB 2193308 A GB2193308 A GB 2193308A
Authority
GB
United Kingdom
Prior art keywords
air
humidity
display case
control plant
conditioning unit
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.)
Granted
Application number
GB08611306A
Other versions
GB2193308B (en
GB8611306D0 (en
Inventor
Raymond Herbert Eaton-Williams
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
Priority to GB8611306A priority Critical patent/GB2193308B/en
Publication of GB8611306D0 publication Critical patent/GB8611306D0/en
Publication of GB2193308A publication Critical patent/GB2193308A/en
Application granted granted Critical
Publication of GB2193308B publication Critical patent/GB2193308B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F3/00—Show cases or show cabinets
    • A47F3/001—Devices for lighting, humidifying, heating, ventilation
    • 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
    • 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
    • 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
    • F24F3/14—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 by humidification; by dehumidification
    • 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
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • 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
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
    • 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
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/15—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means
    • F24F8/158—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means using active carbon
    • 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
    • F24F5/0007—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 cooling apparatus specially adapted for use in air-conditioning
    • F24F5/0017—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 cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice
    • F24F2005/0025—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 cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice using heat exchange fluid storage tanks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/54—Heating and cooling, simultaneously or alternatively
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F6/12—Air-humidification, e.g. cooling by humidification by forming water dispersions in the air
    • F24F6/14—Air-humidification, e.g. cooling by humidification by forming water dispersions in the air using nozzles
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Air Conditioning Control Device (AREA)
  • Drying Of Gases (AREA)

Abstract

A humidity and pollutant control plant for museum cases comprising an air conditioning unit (14) for bringing air passing through it to a temperature corresponding to that of the air already in a display case (10) and in the gallery or hall where the display case is located, and a small-bore pipe (12) or other air passage for supplying conditioned air from the unit (14) to the display case (10) in such a low quantity as to keep the display case very slightly pressurised and to keep the humidity of the air therein at a required level. The conditioning plant may include a filter and humidity control <IMAGE>

Description

SPECIFICATION Humidity and pollutant control plant for museum cases This invention is concerned with a humidity and pollutant control plant for museum cases.
In recent years there has been an increasing awareness of the need to provide effective control over the air condition within museum display cases housing many types of valuable exhibits. Many materials from which such exhibits are made can become damaged by being exposed to high or low extremes of temperature and humidity, or by repeated cycling of air of variable temperature and humidity, or by dust and gaseous pollutants as are commonly found in present day urban atmospheres. Materials which are particularly sensitive to damage in this way are fabrics, many metals and enamel.
Earlier approaches to solving this problem have comprised the provision of an air conditioning unit which continuously circulates air through one or more museum cases or cabinets. The air conditioning unit itself includes equipment for filtering the air-both for particulate matter and pollutant gases-and for heating and/or cooling the air and for humidifying and dehumidifying the air.
One disadvantage of this sytem is that, as air is not very dense, the ability of the circulated air to carry neat is quite low. Consequently, to provide for any significant addition of heat to, or the removal of heat from, the museum case in order to control its temperature, a considerable volume of circulating air is necessary. Typical circulating air volumes which have been used have been of the order of 100--200 cu.m./hr of air per cubic metre of display case. Such a large through-put of air not only uses up considerable energy but it can also disturb or damage delicate or fragile exhibits in the museum case. Another disadvantage of this prior system is that the introduction and removal of this quantity of air from the display case requires air ducts of significant size which are ugly and difficult to accommodate.Moreover, the associated plant is normally located near to the display case to avoid temperature and humidity gradients on the distribution ducting, and this plant is bulky and invariably ugly and noisy. Because such a plant is relatively powerful, certain failure modes could cause damage to the exhibits if such failure modes were not detected and the plant shut down very quickly. Finally, the energy consumed by the plant is not inconsiderable, and this is a serious disadvanage in these days when museums are not finding it an easy matter to "pay their way".
In contrast to this prior system, the present invention is directed to a plant comprising an air conditioning unit for bringing air passing through it to a temperature corresponding to that of the air already in the display case(s) and in the gallery or hall where the case is located, and a small-bore pipe or other air passage for supplying conditioned air from the unit to the case in such a low quantity as simply to keep the case very slightly pressurised and to keep the humidity of the air therein at a required level.
The essential idea underlying the present invention is that no attempt is made to use the supply air to alter the temperature of the air in the display case or the case itself. On the contrary, the air conditioning unit is arranged to control the temperature of the supply air such that it is substantially the same as the temperature of the air already in the display case and that of the ambient air in the museum gallery or hall. The quantity of purified.
air which must be supplied to the case in order to provide a slight positive pressurisation-so as to prevent the ingress of dust and other atmospheric pollutants-is quite small. Similarly, the amount of air which must be supplied to the case in order to keep the humidity at the required level is also quite small. In short, the amount of air which therefore needs to be supplied to the display case is reduced by a considerable factor from the amount required to control temperature as well which is what has been done in the past.
Depending upon the materials used in the plant, the quality of construction and general air-tightness of the museum case, the factor of reduction may be as much as 100 times which represents a very significant reduction in capital costs and running expenses of the plant.
It is to be understood that the air conditioning unit can be arranged to feed a consierable number of display cases, provided that all these display cases connected to the single unit are substantially at the same temperature.
Air distribution to the display cases can be achieved by the use of small-bore tubing made of metal or synthetic plastics material, the final leads to the display cases being of the order of 5-20 mm bore. These tubes will be connected to larger main tubes which can have a diameter typically of 4-12 cm.
If the best results are to be achieved from the plant of the present invention, the following requirements should be met 1. All the display cases connected to the same air conditioning unit must be of substantially the same temperature and surrounded by ambient air which is also at that temperature.
Thus, draughts must be reduuced as much as possible.
2. The temperature in the museum gallery or hall in which the display cases are located must be as constant as possible on a daily cycling basis, although seasonal variations to a reasonabie extent would not be disadvanageous. Fortunately, in many cases this is likely to occur naturally, as many museum galleries are heavily built and have a considerable thermal mass and inertia. Furthermore, this situation can be improved on a daily basis by relatively inexpensive and simple equipment. For example, a drop at night in the temperature which would otherwise be harmful in allowing short duration humidity changes in the cases can be compensated for by a quick-response background heating system.
3. Differences in temperature from one case to another such as could be caused by direct sunlight falling on a case would not be acceptable. However, this is unlikely to happen in many museums as it is in any event not allowable or desirable for direct sunlight to fall upon the exhibits themselves.
4. The lighting in the case or cabinet should be arranged in such a way that radiation from the lamp(s) or conduction of heat therefrom has a minimal effect upon the air within the display case.
In order that the invention may be thoroughly understood, an example of a humidity and pollutant control plant for museum cases in accordance with it will now be described with reference to the accompanying drawings, in which Figure 1 is a diagrammatic plan view of the plant as installed in a museum gallery; and Figure 2 is a diagrammatic view of an air conditioning unit forming part of the plant.
The museum gallery or hall in which the illustrated plant is instailed comprises a number of display cases or cabinets 10 within which exhibits (not shown) are housed. An air-inlet pipe 12 having an internal bore of 5-20 mm leads into each display case for the supply of purified air thereto from an air conditioning unit 14 through larger-diameter main pipes 16. Activated-carbon breather filters 18 comprising high-efficiency particulate filters and activated carbon filters are distributed around the display cases to allow air to be vented from the latter into the gallery. If, however, reverse flow occurs from the gallery into the cases due to a drop in pressure in the latter (for example, when the plant is not operating), then the filters 18 will ensure that the air entering the cases is clean filtered air.
Temperature control sensors 20 and humidity monitoring sensors 22 are likewise distributed around the cases. As will be seen from the key above Figure 1, some portions of the pipes 12 and 16 are arranged below the display cases, but above floor level, other portions are located in floor voids while yet other portions are in under-floor trunking 24.
The air conditioning unit 14 shown in Figure 2 comprises a high-pressure, constant-volume fan 26 for supplying the required volume of air to the display cases 10 against the resis- tance of a high-efficiency particlate filter 28 and an activated carbon filter 30-both arranged on the delivery side of the fan-as well as the small-bore high-velocity air-distribution tubing 12 and 16. The air supply to the unit is preferably taken from the museum gallery itself although this is not an essential requirement. Such air is passed initially through a pre-filter 32 to remove the main quantity of large dust and to prevent fouling of the air conditioning equipment itself.Within the unit the air passing therethrough is initially cooled by a main cooling coil 34 to a relatively low dew point (approximately 5 degrees C), after which it passes through an electric heater 36 and a humidifier 38 both of which are arranged to have infinitely variable control through control means (not shown) arranged to receive temperature control signals from the sensors 20. These control means incorporate a comparitor system in that they also receive signals from a temperature sensor T and a humidity sensor H connected to the delivery side of the unit, which signals are compared with those from the sensors 20 and 22 to initiate, as appropriate, operation of the heater 36 and the humidifier 38.An aftercooling coil 40 serving to take a few degrees out of the air resulting from a rise in temperature of the air in the fan due to compression of air therein is arranged on the delivery side of the fan 26, and a pump 42 is provided for pumping cooling liquid from a reservoir 44 through the cooling coils 34 and 40 which are connected in series with each other. Refrigeration circuits 46 and 48 are also connected to the reservoir 44.
The purpose of the air conditioning unit is to supply perfectly cleaned air at between 40% and 60% relative humidity (preferably about 50%) to all the display cases 10 at the same temperature as the air already in the cases and surrounding the cases. The temperature of the air in the display cases is sensed by the sensors 20 placed in representative cases, the readings of these sensors being averaged when passed to the control means of the air conditioning unit. The heater 36 in the plant is arranged to heat the supply air such that the supply air ieaving the unit as sensed by the sensor T is at exactly the same temperature as that sensed by the sensors 20 in the display cases. Similarly, the humidity sensor H is arranged to control the humidifier 38 to add moisture to the discharged air to exactly the degree required to produce a relative humidity of 50% in the discharged air at the temperature to which it had been controlled.

Claims (1)

1. A humidity and pollutant control plant for museum cases comprising an air conditioning unit for bringing air passing through it to a temperature corresponding to that of the air already in a display case and in the gallery or hall where the display case is located, and a small-bore pipe or other air passage for supplying conditioned air from the unit to the dis play case in such a low quantity as simply to keep the display case very slightly pressurised and to keep the humidity of the air therein at a required level.
2. A humidity and pollutant control plant according to claim 1, in which the air conditioning unit is arranged to control the temperature of the air supplied by it to the display case such that the supplied air is at substantially the same temperature as that of the air already in the display case and that of the ambient air in the museum gallery or hall.
3. A humidity and pollutant control plant according to claim 1 or claim 2, in which the air conditioning unit is arranged to supply conditioned air to a plurality of display cases on the basis that the air in these display cases connected to the air conditioning unit is all at substantially the same temperature.
4. A humidity and pollutant control plant according to any one of claims 1-3, in which the supply of conditioned air to the display case(s) is effected through small-bore tubing made of metal or synthetic plastics material, the final lead(s) to the display case(s) having an internal diameter of 5-20 mm.
5. A humidity and pollutant control plant according to claim 4, in which the small-bore tubing leads from one or more main tubes having an internal diameter of 4-12 cm.
6. A humidity and pollutant control plant according to any preceding claim, in which one or more activated-carbon breather filters comprising a high-efficiency particulate filter and an activated carbon filter is, or are, arranged adjacent the display case(s) to allow air to be vented from the latter into the hail or gallery while ensuring that, if reverse flow occurs from the hall or gallery into the display case(s) due to a drop in pressure in the latter (for example, when the plant is not operating), then the breather filters will filter the air thus entering the display case(s).
7. A humidity and pollutant control plant according to any preceding claim, in which one or more temperature control sensors and one or more humidity-monitoring sensors are arranged adjacent the display case(s).
8. A humidity and pollutant control plant according to any preceding claim, in which the air conditioning unit comprises a high pressure, constant-volume fan for supplying the required volume of air to the display case(s) .against the resistance of a high-efficiency particulate filter and an activated carbon filter both arranged on the delivery side of the fan as well as against the resistance of the smallbore pipe(s) or other air passage(s) leading to the display case(s).
9. A humidity and pollutant control plant according to any preceding claim, in which a pre-filter is provided on the air-input side of the air conditioning unit to remove the main quantity of large dust in the air and to prevent fouling of the air conditioning unit itself.
10. A humidity and pollutant control plant according to any preceding claim, in which the air conditioning unit has a cooling coil to cool the incoming air to a relatively low dew point (for example, 5 degrees C).
11. A humidity and pollutant control plant according to claim 11, in which the control means incorporate a comparitor system adapted to receive signals from a temperature sensor and a humidity sensor connected to the delivery side of the air conditioning unit, which signals are compared with those from one or more other sensors to initiate, as appropriate, operation of the heater and the humidifier.
13. A humidity and pollutant control plant according to any one of claims 10-12 when appendant to claim 8, in which a further cooling coil serving to take a few degrees out of the air resulting from a rise in temperature of the air in the air conditioning unit due to compression of air therein is arranged on the delivery side of the fan, and a pump is provided for pumping cooling liquid from a reservoir through the cooling coils which are connected in series with each other.
14. A humidity and pollutant control plant substantially as described herein with reference to the accompanying drawings.
GB8611306A 1986-05-09 1986-05-09 Humidity and pollutant control plant for museum cases Expired - Lifetime GB2193308B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8611306A GB2193308B (en) 1986-05-09 1986-05-09 Humidity and pollutant control plant for museum cases

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8611306A GB2193308B (en) 1986-05-09 1986-05-09 Humidity and pollutant control plant for museum cases

Publications (3)

Publication Number Publication Date
GB8611306D0 GB8611306D0 (en) 1986-06-18
GB2193308A true GB2193308A (en) 1988-02-03
GB2193308B GB2193308B (en) 1990-10-03

Family

ID=10597564

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8611306A Expired - Lifetime GB2193308B (en) 1986-05-09 1986-05-09 Humidity and pollutant control plant for museum cases

Country Status (1)

Country Link
GB (1) GB2193308B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITRM20100095A1 (en) * 2010-03-08 2011-09-09 Univ G D Annunzio Chieti Pescara TECA WITH STABLE AND INERT CONFINED MICROCLIMATE, IN PARTICULAR FOR THE FINAL CONSERVATION OF MUMMIFIED ORGANIC REMAINS, AND ITS CONSERVATION METHOD
WO2024218418A1 (en) * 2023-04-21 2024-10-24 Fundación Pedro Barrié De La Maza, Conde De Fenosa Relative humidity control device for display cabinets

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB694533A (en) * 1951-05-11 1953-07-22 Henry Conrad Heide Improvements in and relating to air conditioning
GB1286852A (en) * 1968-08-23 1972-08-23 Gustavsbergs Fabriker Ab System for controlling the air temperature in an enclosed space

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB694533A (en) * 1951-05-11 1953-07-22 Henry Conrad Heide Improvements in and relating to air conditioning
GB1286852A (en) * 1968-08-23 1972-08-23 Gustavsbergs Fabriker Ab System for controlling the air temperature in an enclosed space

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITRM20100095A1 (en) * 2010-03-08 2011-09-09 Univ G D Annunzio Chieti Pescara TECA WITH STABLE AND INERT CONFINED MICROCLIMATE, IN PARTICULAR FOR THE FINAL CONSERVATION OF MUMMIFIED ORGANIC REMAINS, AND ITS CONSERVATION METHOD
EP2364589A3 (en) * 2010-03-08 2012-07-18 Universita' Degli Studi "G. d'Annunzio" Chieti-Pescara Shrine with an inert and stable closed microclimate, particularly for the definitive preservation of mummified organic remains, and related preservation method
WO2024218418A1 (en) * 2023-04-21 2024-10-24 Fundación Pedro Barrié De La Maza, Conde De Fenosa Relative humidity control device for display cabinets

Also Published As

Publication number Publication date
GB2193308B (en) 1990-10-03
GB8611306D0 (en) 1986-06-18

Similar Documents

Publication Publication Date Title
US4450900A (en) Mobile air conditioning unit
US10111978B2 (en) Ion generator device
US20160298863A1 (en) Air Purification Device With Ozone And Fine Dust Cleaning
CN1323162A (en) Electronic Equipment Chassis Cooling System
CA2300861A1 (en) Modular integrated terminals and associated systems for heating and cooling
SI21941A (en) Public display
RU96115254A (en) METHOD AND DEVICE FOR COOLING IN INDOOR SPACES
SE468775B (en) VENTILATION PROCEDURE MAKES COUNTED OR LIKE, EXTRA MOBILE HEALTH DEVICES, AND MEDICAL EFFECTS
US5884500A (en) Self-contained air conditioner with discharge-air filter
US11633688B2 (en) HEPA air filtration with an air handling device
US11680726B2 (en) HVAC system
US20030116020A1 (en) Device and method for air filtration
RU2122685C1 (en) Ventilation set incorporating filter performing sound absorbing, flow damping, and filtering functions
GB2193308A (en) Humidity and pollutant control plant for museum cases
US6589111B1 (en) Snow extractor for use with an air handling system
US20050217484A1 (en) Method and portable apparatus for cooling and heating structures
CN111425934A (en) Air treatment device
GB2448079A (en) Supply and exhaust air terminal device
JP3963660B2 (en) Clean room air conditioning system
Ashley et al. Bioclimatic cabinet for insect rearing and research
JP2524830Y2 (en) Plant acclimation equipment
JPS5835341A (en) Clean unit with temperature control function
KR200339841Y1 (en) Clean air system
AU645815B2 (en) Cooling system for a shelter
JPS62129631A (en) air conditioner

Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19920509