WO2007148976A1 - A climate control device for a greenhouse - Google Patents

A climate control device for a greenhouse Download PDF

Info

Publication number
WO2007148976A1
WO2007148976A1 PCT/NO2007/000193 NO2007000193W WO2007148976A1 WO 2007148976 A1 WO2007148976 A1 WO 2007148976A1 NO 2007000193 W NO2007000193 W NO 2007000193W WO 2007148976 A1 WO2007148976 A1 WO 2007148976A1
Authority
WO
WIPO (PCT)
Prior art keywords
plastic foil
greenhouse
channels
control device
climate control
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.)
Ceased
Application number
PCT/NO2007/000193
Other languages
French (fr)
Inventor
Leiv M. Mortensen
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.)
BICOTEC AS
Original Assignee
BICOTEC AS
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 BICOTEC AS filed Critical BICOTEC AS
Publication of WO2007148976A1 publication Critical patent/WO2007148976A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/22—Shades or blinds for greenhouses, or the like
    • A01G9/227—Shades or blinds for greenhouses, or the like rolled up during non-use
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/22—Shades or blinds for greenhouses, or the like
    • A01G9/225—Inflatable structures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00—Solar heat collectors using working fluids
    • F24S10/50—Solar heat collectors using working fluids the working fluids being conveyed between plates
    • F24S10/504—Solar heat collectors using working fluids the working fluids being conveyed between plates having conduits formed by paired non-plane plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00—Solar heat collectors using working fluids
    • F24S10/50—Solar heat collectors using working fluids the working fluids being conveyed between plates
    • F24S10/506—Solar heat collectors using working fluids the working fluids being conveyed between plates having conduits formed by inflation of portions of a pair of joined sheets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S20/00—Solar heat collectors specially adapted for particular uses or environments
    • F24S20/50—Rollable or foldable solar heat collector modules
    • F24S20/55—Rollable or foldable solar heat collector modules made of flexible materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S90/00—Solar heat systems not otherwise provided for
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
    • 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
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/20—Solar thermal
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/44—Heat exchange systems

Definitions

  • This invention relates to a climate control device for a greenhouse. More particularly, it relates to a climate control device for a greenhouse, the climate control device comprising a double plastic foil provided with channels, the foil being placed, in its active position, on the greenhouse, the channels of the plastic foil, which are arranged to be flowed through by fluid, extending in a direction between different height levels, the plastic foil being windable.
  • Control of the indoor climate in a greenhouse can contribute to a substantial increase in growth for plants in the greenhouse.
  • the indoor temperature in the greenhouse is adjusted by means of heating in cool periods and cooling by means of airing and shading against sunlight in warmer periods .
  • CO 2 carbon dioxide
  • US patent 4108373 discloses a greenhouse, in which transparent channels are arranged in the roofing structure for the pumping-through of a fluid, which is arranged to absorb light of certain wavelengths. According to the document permanently mounted channels are involved.
  • US patent 4012867 deals with a greenhouse, in which the roof is formed by a double sheet structure, and in which the outer sheet is designed to resist the flow-through of CO 2 gas, whereas the inner sheet is designed to allow a greater flow- through of this gas.
  • the two sheets are joined, so that horizontal channels are formed, which are filled with CO 2 gas. Some of this gas "leaks" into the interior space of the greenhouse.
  • US patent 6282834 discloses a greenhouse, which is provided with a windable double foil, the foil being provided with gas-filled pockets to insulate the greenhouse better.
  • growth-enhancing channel devices which are arranged to be flowed through by fluid, are formed as fixed structures and are thereby difficult to remove in periods when they are an obstacle to improved indoor climate in the greenhouse.
  • the invention has as its object to remedy or reduce at least one of the drawbacks of the prior art.
  • a climate control device in accordance with the invention for a greenhouse comprises a double plastic foil provided with channels, which is placed, in its active position, on the greenhouse and characterized by the channels of the plastic foil, which are arranged to be flowed through by fluid, extending in a direction between different height levels, the plastic foil being windable.
  • the double plastic foil is joined along parallel lines suitably spaced apart, the space between the joints constituting a channel.
  • the distance between the joining lines is typically between 1 and 10.
  • the channels of the plastic foil are selectively connected, by means of a first valve and a second valve, respectively, to a water supply and to an air supply.
  • the channels of the plastic foil are provided with a flow controller at their outlets to be able to adjust the flow rate through the channels or to close them completely, for example to increase the volume of air in the channels if better heat insulation is desirable.
  • the plastic foil At its first end portion the plastic foil is connected to a wind-up roller.
  • the wind-up roller is disposed in a suitable place relative to the greenhouse, for example near the ground on the southward-facing side of the house.
  • the plastic foil At its second end portion the plastic foil is, with advantage, connected to a winch which is arranged to pull the foil out of the wind-up roller, thereby moving the foil relative to at least the wall or roof of the greenhouse.
  • a device enables, relative to the prior art, improved climate control in the greenhouse by, firstly, enabling control of heat radiation by water, which has the property of absorbing heat radiation without shading to a substantial degree the photosynthetically active light typically having wavelengths of 400 to 700 nm, flowing through the channels. Further, the channels may be filled with air to form a heat-insulating layer. If desirable, the foil or the fluid can be provided with a colour to limit the inflow of light of particular wavelengths. Additionally, the foil can be removed whenever desirable.
  • Figure 1 is a principle drawing of a greenhouse, which is provided with a plastic foil according to the invention
  • Figure 2 shows, on a larger scale, a cross-section of the plastic foil
  • Figure 3 shows a flow controller arranged at the plastic foil.
  • the reference numeral 1 indicates a greenhouse, where, from a wind-up roller 2 which is disposed at ground level along one sidewall 4 of the greenhouse 1, a double plastic foil 8 has been pulled up, by means of a winch 6, over the sidewall 4 and over a portion of the roof 10 of the greenhouse 1.
  • the double plastic foil 8 is joined along lines 12, the spaces between the lines 12 constituting channels 14, see figure 2.
  • the channels 14 extend from a first height level at the first end portion 16 of the plastic foil 8 up to a second height level at the second end portion 18 of the plastic foil 8.
  • plastic foil 8 is connected at its first end portion 16 to the wind-up roller 2, whereas, at its second end portion 18, it is connected to the winch 6 via rope elements 20 extending over pulleys 22.
  • the outlet 24 of the channel 14 discharges into a collecting conduit 26 connected via a pipe 28 to a water tank 30.
  • a pump 32 pumps water from the water tank 30 to the channels 14 at the second end portion 18 of the plastic foil 8, from where the water flows through the channels 14 to the first end portion 16.
  • the water tank 30, pump 32, first valve 34 and hose connection 36 thus constitute a water supply for the plastic foil 8.
  • the circulating water absorbs thermal energy in periods when solar energy is supplied to it, and gives off thermal energy in periods when this is needed.
  • the first valve 34 When there is a need for thermal insulation of the sidewall 4 and roof 10, the first valve 34 is closed while a second valve 38, connecting the hose connection 36 to an air pump 40, is opened.
  • the air pump 40, second valve 38 and hose connection 36 thereby constitute an air supply for the plastic foil 8.
  • the blow-in of air causes the channels 14 to fill with air, thereby forming an adjustable thermal insulation.
  • the flow controller 42 comprises two clamping strips 44 which are movable relative to each other, reducing the cross- section of the channels 14 at the flow controller 42 when being moved closer to each other.
  • One of the clamping strips 44 may, with advantage, be formed by the wind-up roller 2.
  • the wind-up roller 2 When the plastic foil 8 is to be removed from the side wall 8 and roof 10, the wind-up roller 2 is rotated about its longitudinal axis so that the plastic foil 8 is wound onto the wind-up roller 2, wile the winch 6 is brought to reel out the rope element 20 at the same time.
  • the plastic foil 8 When the plastic foil 8 is to be pulled up over the greenhouse 1, the plastic foil 8 is moved by means of said components in the opposite direction.
  • the plastic foil 8 is tight at its first end portion 16, the fluid flowing through the channels 14 discharging into one or more channels 14 with collecting openings near the first end portion 16.
  • the channels 14 can be flowed through by, for example, water from a different source, for example from a river or sea, not shown, when there is a need for cooling the greenhouse 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental Sciences (AREA)
  • Greenhouses (AREA)

Abstract

A climate control device for a greenhouse (1) comprising a double plastic foil (8) provided with channels (14), the foil being placed, in its active position, on the greenhouse (1), the channels (14) of the plastic foil (8), which are arranged to be flowed through by fluid, extending in a direction between different height levels, the plastic foil (8) being windable.

Description

A CLIMATE CONTROL DEVICE FOR A GREENHOUSE
This invention relates to a climate control device for a greenhouse. More particularly, it relates to a climate control device for a greenhouse, the climate control device comprising a double plastic foil provided with channels, the foil being placed, in its active position, on the greenhouse, the channels of the plastic foil, which are arranged to be flowed through by fluid, extending in a direction between different height levels, the plastic foil being windable.
Control of the indoor climate in a greenhouse can contribute to a substantial increase in growth for plants in the greenhouse. Conventionally, the indoor temperature in the greenhouse is adjusted by means of heating in cool periods and cooling by means of airing and shading against sunlight in warmer periods .
It is known that an increase in the proportion of carbon dioxide (CO2) in the indoor air from the normal level of 0.038 per cent by volume to, for example, 0.080 per cent by volume, can contribute to a substantial increase in the growth rate of the plants. An elevated proportion of CO2 in the indoor air is maintained by means of supplied CO2 gas and is difficult to combine with airing of the greenhouse.
It is known to dispose channels for flow-through by fluid on the roof of a greenhouse to regulate radiation into the greenhouse. Thus, US patent 4108373 discloses a greenhouse, in which transparent channels are arranged in the roofing structure for the pumping-through of a fluid, which is arranged to absorb light of certain wavelengths. According to the document permanently mounted channels are involved.
US patent 4012867 deals with a greenhouse, in which the roof is formed by a double sheet structure, and in which the outer sheet is designed to resist the flow-through of CO2 gas, whereas the inner sheet is designed to allow a greater flow- through of this gas. The two sheets are joined, so that horizontal channels are formed, which are filled with CO2 gas. Some of this gas "leaks" into the interior space of the greenhouse.
As mentioned above, it is known to shade parts of a greenhouse to reduce heating. US patent 6282834 discloses a greenhouse, which is provided with a windable double foil, the foil being provided with gas-filled pockets to insulate the greenhouse better.
According to the prior art, growth-enhancing channel devices, which are arranged to be flowed through by fluid, are formed as fixed structures and are thereby difficult to remove in periods when they are an obstacle to improved indoor climate in the greenhouse.
The invention has as its object to remedy or reduce at least one of the drawbacks of the prior art.
The object is achieved in accordance with the invention through the features specified in the description below and in the claims that follow.
A climate control device in accordance with the invention for a greenhouse comprises a double plastic foil provided with channels, which is placed, in its active position, on the greenhouse and characterized by the channels of the plastic foil, which are arranged to be flowed through by fluid, extending in a direction between different height levels, the plastic foil being windable.
The double plastic foil is joined along parallel lines suitably spaced apart, the space between the joints constituting a channel. The distance between the joining lines is typically between 1 and 10.
The channels of the plastic foil are selectively connected, by means of a first valve and a second valve, respectively, to a water supply and to an air supply.
With advantage, the channels of the plastic foil are provided with a flow controller at their outlets to be able to adjust the flow rate through the channels or to close them completely, for example to increase the volume of air in the channels if better heat insulation is desirable.
At its first end portion the plastic foil is connected to a wind-up roller. The wind-up roller is disposed in a suitable place relative to the greenhouse, for example near the ground on the southward-facing side of the house. At its second end portion the plastic foil is, with advantage, connected to a winch which is arranged to pull the foil out of the wind-up roller, thereby moving the foil relative to at least the wall or roof of the greenhouse.
A device according to the invention enables, relative to the prior art, improved climate control in the greenhouse by, firstly, enabling control of heat radiation by water, which has the property of absorbing heat radiation without shading to a substantial degree the photosynthetically active light typically having wavelengths of 400 to 700 nm, flowing through the channels. Further, the channels may be filled with air to form a heat-insulating layer. If desirable, the foil or the fluid can be provided with a colour to limit the inflow of light of particular wavelengths. Additionally, the foil can be removed whenever desirable.
As a result of this the need for airing the greenhouse is considerably reduced, whereby an internal atmosphere with an elevated CO2 content can more easily be maintained.
In what follows, is described a non-limiting example of a preferred embodiment which is visualized in the accompanying drawings, in which:
Figure 1 is a principle drawing of a greenhouse, which is provided with a plastic foil according to the invention;
Figure 2 shows, on a larger scale, a cross-section of the plastic foil; and
Figure 3 shows a flow controller arranged at the plastic foil.
In the drawings the reference numeral 1 indicates a greenhouse, where, from a wind-up roller 2 which is disposed at ground level along one sidewall 4 of the greenhouse 1, a double plastic foil 8 has been pulled up, by means of a winch 6, over the sidewall 4 and over a portion of the roof 10 of the greenhouse 1.
The double plastic foil 8 is joined along lines 12, the spaces between the lines 12 constituting channels 14, see figure 2. When the plastic foil 8 is in its active position, as it is shown in figure 1, the channels 14 extend from a first height level at the first end portion 16 of the plastic foil 8 up to a second height level at the second end portion 18 of the plastic foil 8.
In this preferred embodiment the plastic foil 8 is connected at its first end portion 16 to the wind-up roller 2, whereas, at its second end portion 18, it is connected to the winch 6 via rope elements 20 extending over pulleys 22.
At the first end portion 16 of the plastic foil 8 the outlet 24 of the channel 14 discharges into a collecting conduit 26 connected via a pipe 28 to a water tank 30. Via a first valve 34 and a hose connection 36 a pump 32 pumps water from the water tank 30 to the channels 14 at the second end portion 18 of the plastic foil 8, from where the water flows through the channels 14 to the first end portion 16. The water tank 30, pump 32, first valve 34 and hose connection 36 thus constitute a water supply for the plastic foil 8.
The circulating water absorbs thermal energy in periods when solar energy is supplied to it, and gives off thermal energy in periods when this is needed.
When there is a need for thermal insulation of the sidewall 4 and roof 10, the first valve 34 is closed while a second valve 38, connecting the hose connection 36 to an air pump 40, is opened. The air pump 40, second valve 38 and hose connection 36 thereby constitute an air supply for the plastic foil 8.
In combination with a flow controller 42 at the outlets 24 being closed, the blow-in of air causes the channels 14 to fill with air, thereby forming an adjustable thermal insulation.
The flow controller 42 comprises two clamping strips 44 which are movable relative to each other, reducing the cross- section of the channels 14 at the flow controller 42 when being moved closer to each other. One of the clamping strips 44 may, with advantage, be formed by the wind-up roller 2.
When the plastic foil 8 is to be removed from the side wall 8 and roof 10, the wind-up roller 2 is rotated about its longitudinal axis so that the plastic foil 8 is wound onto the wind-up roller 2, wile the winch 6 is brought to reel out the rope element 20 at the same time.
When the plastic foil 8 is to be pulled up over the greenhouse 1, the plastic foil 8 is moved by means of said components in the opposite direction.
In another embodiment, not shown, the plastic foil 8 is tight at its first end portion 16, the fluid flowing through the channels 14 discharging into one or more channels 14 with collecting openings near the first end portion 16.
It is also possible to utilize the heat in the water, which is in the water tank 30, by means of a heat pump, not shown, giving off heat into the greenhouse 1.
The channels 14 can be flowed through by, for example, water from a different source, for example from a river or sea, not shown, when there is a need for cooling the greenhouse 1.

Claims

C l a i m s
1. A climate control device for a greenhouse (1) comprising a double plastic foil (8) provided with channels (14) , the foil (8) being placed, in its active position, on the greenhouse (1), c ha r a c t e r i z e d i n that the channels (14) of the plastic foil (8) , which are arranged to be flowed through by fluid, extend in a direction between different height levels, the plastic foil (8) being windable.
2. The climate control device in accordance with claim 1, c ha r a c t e r i z e d i n that the channels (14) of the plastic foil (8) are selectively connected to a water supply (30, 32).
3. The climate control device in accordance with claim 1, c h a r a c t e r i z e d i n that the channels (14) of the plastic foil (8) are selectively connected to an air supply (38) .
4. The climate control device in accordance with claim 1, c h a r a c t e r i z e d i n that the channels (14) of the plastic foil (8) are provided with a flow controller (42) at their outlets (24) .
5. The climate control device in accordance with claim 1, c h a r a c t e r i z e d i n that the plastic foil (8) is connected, at its first end portion (16) , to a wind-up roller (2) .
6. The climate control device in accordance with claim 5, c h a r a c t e r i z e d i n that the plastic foil (8) is connected, at its second end portion (18), to a winch (6) . ^
7. The climate control device in accordance with claim 6, charac t e r i z ed i n that the winch (6) is arranged to move the plastic foil (8) relative to at least the wall (4) or roof (10) of the greenhouse (1) .
PCT/NO2007/000193 2006-06-19 2007-06-04 A climate control device for a greenhouse Ceased WO2007148976A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20062852A NO325221B1 (en) 2006-06-19 2006-06-19 Greenhouse climate control device
NO20062852 2006-06-19

Publications (1)

Publication Number Publication Date
WO2007148976A1 true WO2007148976A1 (en) 2007-12-27

Family

ID=38833643

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2007/000193 Ceased WO2007148976A1 (en) 2006-06-19 2007-06-04 A climate control device for a greenhouse

Country Status (2)

Country Link
NO (1) NO325221B1 (en)
WO (1) WO2007148976A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102242543A (en) * 2010-05-11 2011-11-16 上海市农业科学院 Water conservancy system for preventing and treating soil secondary salinization in greenhouses in coastal region
CN102563934A (en) * 2011-12-12 2012-07-11 西安交通大学 Heat collector material for solar heat airflow power generation
EP2245383A4 (en) * 2008-01-10 2013-08-21 Seppo Setaelae Collection system for heat energy
US10251346B2 (en) * 2015-03-11 2019-04-09 Emerald Kingdom Greenhouse, Llc Top furling automated retractable greenhouse cover
US20220030780A1 (en) * 2020-07-30 2022-02-03 Nicholas Scott Peiffer Garden Protection System
DE102022003050A1 (en) 2022-08-12 2024-02-15 Oliver Horsky Extendable protection from the weather for all types of buildings

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4012867A (en) * 1975-04-09 1977-03-22 The British Petroleum Company Limited Growth of plants
US4108373A (en) * 1974-05-22 1978-08-22 Commissariat A L'energie Atomique Method and an installation for the air-conditioning of greenhouses and frames
US6282834B1 (en) * 1999-05-24 2001-09-04 Clifford L. Mossey Insulating light transmissive and flexible greenhouse cover
JP2002191239A (en) * 2000-12-27 2002-07-09 Sakai Kagaku Kogyo Kk Ceiling or wall structure
JP2004161394A (en) * 2002-11-11 2004-06-10 Seiwa:Kk Greenhouse film winding device and greenhouse

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4108373A (en) * 1974-05-22 1978-08-22 Commissariat A L'energie Atomique Method and an installation for the air-conditioning of greenhouses and frames
US4012867A (en) * 1975-04-09 1977-03-22 The British Petroleum Company Limited Growth of plants
US6282834B1 (en) * 1999-05-24 2001-09-04 Clifford L. Mossey Insulating light transmissive and flexible greenhouse cover
JP2002191239A (en) * 2000-12-27 2002-07-09 Sakai Kagaku Kogyo Kk Ceiling or wall structure
JP2004161394A (en) * 2002-11-11 2004-06-10 Seiwa:Kk Greenhouse film winding device and greenhouse

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2245383A4 (en) * 2008-01-10 2013-08-21 Seppo Setaelae Collection system for heat energy
CN102242543A (en) * 2010-05-11 2011-11-16 上海市农业科学院 Water conservancy system for preventing and treating soil secondary salinization in greenhouses in coastal region
CN102242543B (en) * 2010-05-11 2014-01-01 上海市农业科学院 A water conservancy system for the prevention and control of secondary salinization of soil in multi-span greenhouses in coastal areas
CN102563934A (en) * 2011-12-12 2012-07-11 西安交通大学 Heat collector material for solar heat airflow power generation
US10251346B2 (en) * 2015-03-11 2019-04-09 Emerald Kingdom Greenhouse, Llc Top furling automated retractable greenhouse cover
US11297778B2 (en) 2015-03-11 2022-04-12 Emerald Kingdom Greenhouse, Llc Top furling automated retractable greenhouse cover
US20220030780A1 (en) * 2020-07-30 2022-02-03 Nicholas Scott Peiffer Garden Protection System
US12302799B2 (en) * 2020-07-30 2025-05-20 Nicholas Scott Peiffer Garden protection system
DE102022003050A1 (en) 2022-08-12 2024-02-15 Oliver Horsky Extendable protection from the weather for all types of buildings

Also Published As

Publication number Publication date
NO325221B1 (en) 2008-03-03
NO20062852L (en) 2007-12-20

Similar Documents

Publication Publication Date Title
WO2007148976A1 (en) A climate control device for a greenhouse
US20110005151A1 (en) Low-energy building, particularly greenhouse or stabling
CN104975668B (en) Curtain wall with solar air and hot-water heat collector
CA2776977A1 (en) Low-energy building, especially self-sufficient zero-energy house
CN215188504U (en) Energy-saving cooling and ventilating device for greenhouse
US20110011087A1 (en) Solar collector and energy conversion systems and methods
JP2015038421A (en) Air conditioning system
CN110810079A (en) Intelligent greenhouse for flower planting
CA2615086A1 (en) Roof-mounted ventilation air duct
AT505157B1 (en) METHOD AND DEVICE FOR WATER RECOVERY FROM AIR OF THE EARTH BODY
DE2542348A1 (en) Solar energy heating and hot water system - has temperature stratification in storage vessel to reduce entropy gain
JP4309310B2 (en) Air film lining curtain film
KR101614720B1 (en) Green roof system
KR20140020025A (en) All-weather greenhouse
US8046849B2 (en) Shower heated by solar energy
KR101446627B1 (en) Construction of self-supporting energy
KR101402800B1 (en) All-weather greenhouse and method for constructing wall-parts thereof
EA007557B1 (en) A partition and method for controlling the temperature in an area
KR20160026438A (en) Greenhouse with closing and opening device and heating lamp
JP4886641B2 (en) Heating method for agricultural house
US20100281609A1 (en) Cover Intended for a Pool Unit within a Pool System
DE202005001488U1 (en) Solar collector completely made from flexible materials comprises a flexible plastic tubing for a working medium lying on a base material
JP3858721B2 (en) Building temperature control method and apparatus
CN215175651U (en) A kind of building exterior wall cooling energy saving system
KR20250030218A (en) Agricultural air house system

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07747652

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 07747652

Country of ref document: EP

Kind code of ref document: A1