US20170051924A1 - Method and system for utilizing heat in a plant or animal growing device, and greenhouse - Google Patents

Method and system for utilizing heat in a plant or animal growing device, and greenhouse Download PDF

Info

Publication number
US20170051924A1
US20170051924A1 US15331551 US201615331551A US2017051924A1 US 20170051924 A1 US20170051924 A1 US 20170051924A1 US 15331551 US15331551 US 15331551 US 201615331551 A US201615331551 A US 201615331551A US 2017051924 A1 US2017051924 A1 US 2017051924A1
Authority
US
Grant status
Application
Patent type
Prior art keywords
heat
unit
fluid
transfer fluid
includes
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.)
Pending
Application number
US15331551
Inventor
Philipp Christian SAUMWEBER
Reinier Rudy Wolterbeek
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.)
SAUMWEBER HOLDINGS Ltd
SUNDROP FARMS HOLDINGS Ltd
Original Assignee
SAUMWEBER HOLDINGS Ltd
SUNDROP FARMS HOLDINGS Ltd
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

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00Receptacles, forcing-frames or greenhouses for horticulture; Edging for beds, lawn or the like
    • A01G9/14Greenhouses
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G25/00Watering gardens, fields, sports grounds, or the like
    • A01G25/16Control of watering
    • A01G25/167Control by humidity of the soil itself or of devices simulating soil or of the atmosphere; Soil humidity sensors
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00Receptacles, forcing-frames or greenhouses for horticulture; Edging for beds, lawn or the like
    • A01G9/24Devices or systems for heating, ventilating, regulating temperature, or watering, in greenhouses, forcing-frames, or the like
    • A01G9/243Collecting solar energy
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00Receptacles, forcing-frames or greenhouses for horticulture; Edging for beds, lawn or the like
    • A01G9/24Devices or systems for heating, ventilating, regulating temperature, or watering, in greenhouses, forcing-frames, or the like
    • A01G9/245Conduits for heating by means of liquids, e.g. used as frame members or for soil heating
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K1/00Housing animals; Equipment therefor
    • A01K1/0047Air-conditioning, e.g. ventilation, of animal housings
    • A01K1/0076Arrangement of heaters or heat exchangers
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K63/00Receptacles for live fish, e.g. aquaria; Terraria
    • A01K63/06Arrangements for heating or lighting in, or attached to, receptacles for live fish
    • A01K63/065Heating or cooling devices
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/02Treatment of water, waste water, or sewage by heating
    • C02F1/04Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C02F1/14Treatment of water, waste water, or sewage by heating by distillation or evaporation using solar energy
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00Hot-water central heating systems
    • F24D3/005Hot-water central heating systems combined with solar energy
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/08Seawater, e.g. for desalination
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/25Greenhouse technology
    • Y02A40/264Devices or systems for heating, ventilating, regulating temperature, or watering
    • Y02A40/266Collecting solar energy
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/10Agricultural machinery or equipment
    • Y02P60/12Agricultural machinery or equipment using renewable energies
    • Y02P60/124Collecting solar energy in greenhouses

Abstract

A method for utilizing heat in a plant or animal growing device includes circulating a heat transfer fluid through a circuit forming a closed fluid loop, heating, via a heat source, the heat transfer fluid in the fluid circuit to a temperature within an efficient operating range of a first heat unit, supplying heat from the heat transfer fluid to a first heat unit, the first heat unit cooling down at least part of the heat transfer fluid to a temperature within an efficient operating range of at least one additional heat unit connected in serial arrangement with the heat source and the first heat unit, supplying heat from the heat transfer fluid from the first heat unit to the additional heat unit, the additional heat unit cooling down at least part of the heat transfer fluid, and returning the cooled down part of the heat transfer fluid from the additional heat unit to the heat source in the fluid circuit.

Description

    CROSS-REFERENCE TO RELATED APPLICATIONS
  • The present application is a continuation of U.S. patent application Ser. No. 14/239,766, filed Apr. 15, 2014, which is a national stage application of PCT/IB2012/001493, filed Aug. 3, 2012, which claims priority to Australian Patent Application No. AU 2011213783, filed Aug. 19, 2011, each of which is expressly incorporated herein in its entirety by reference thereto.
  • FIELD OF INVENTION
  • The present invention relates to a method and system for utilizing heat in a plant or animal growing device, and a greenhouse.
  • BACKGROUND INFORMATION
  • Plant or animal growing devices, such as greenhouses, and artificial water ponds for growing fish and cattle farms, are in use all over the world. In such devices, energy in the form of heat is used by several heat users, such as a heating unit, that serves to provide an adequate temperature of the medium in which the specific type of plant or animal grows (typically air or water). The heat source may obtain its energy in any manner, typically by burning fossil fuel or by catching solar power. The heat users may vary according to the geographical circumstances, such as the availability of fresh water or seawater. For example, one of the heat users may be a thermal desalination unit, in locations where seawater is abundant and fresh water is scarce.
  • European Patent No. EP 1 071 317 describes a greenhouse and a heat source for producing steam comprising at least one collector situated above rotatable mirrors which can follow the movement of the sun according to the seasons and can make the top-side of the greenhouse practically light-tight. The water, in the form of steam, produced in the collector is distributed to two heat users, in a ratio determined by valves, and flows, after condensation, back to the heat source. The two heat users are (1) a thermal desalination unit and (2) a steam turbine, for producing electricity. The produced desalinated water is used for growing plants in the greenhouse. Part of the solar radiation enters the inner space of the greenhouse, where it is used for photosynthesis of plants.
  • SUMMARY
  • The method and device described above do not use the energy of the heat source in an optimal manner. An objective of the present invention is to provide a method and device which make more efficient use of the energy of the heat source.
  • According to an example embodiment of a method and device of the present invention, by adding at least one additional heat user in a serial arrangement of the heat users, it becomes possible to arrange the heat users in such a manner that the heat transfer fluid arriving at them has a temperature within an efficient operating range of each of the heat users, without having to dump or otherwise degrade, or diminish, the usability of the heat in the heat transfer fluid. As a result, the method offers a more efficient use of the heat from the heat source in that, for example, the heat in the heat transfer fluid can be used more efficiently, i.e. less heat can be thrown away (to the environment) or reduced in quality or usability by mixing it with colder fluids. This may be understood, for example, by comparing the serial arrangement to a parallel arrangement of the heat users: in a serial arrangement, the full temperature difference, or, in an analogy to an electrical circuit, the full heat “potential”, is used for each heat user, although most heat users will operate only in their most efficient manner when operated at a subrange of said full temperature difference. By arranging the heat users serially, and in an appropriate order, they optimally use the heat in the fluid. This includes optimal use of the energy, i.e., the amount of energy that can be withdrawn from the heat transfer fluid with respect to the conditions (such as temperature, pressure, electrical potential) of the environment it operates in. Advantageously, a thermal desalination device may allow such an optimal arrangement with a number of other heat users. Heating by the fluid is to be understood to include, in particular, flowing the fluid through the component as well as flowing the fluid through a heat exchanger that is thermally connected to the component.
  • Further, since more efficient use is made of the heat source, a smaller heat source will suffice. As a result, lower investment costs become possible for a device that has the same growing capacity.
  • Furthermore, supply of heat to a heat user may also be indirect, such as via a heat exchanger or via a secondary medium in a circuit and two heat exchangers.
  • In an embodiment according to a method and device of the present invention, the heat transfer fluid temperature ranges in the heat users are within the optimal operating temperature ranges of the respective heat users in the fluid circuit and, for all heat users in the closed fluid circuit, the heat fluid outlet temperature of one component, whether a heat user or the heat source, equals the heat fluid inlet temperature of the next component. In this manner, the heat produced in the heat source may be fully used in the heat users, without heat being dumped outside the heat users.
  • In another embodiment according to a method and device of the present invention, the additional heat user is a heating device of the medium where the plants or animals grow, in particular a crop heating or space heating in which the heat transfer fluid in operation is cooled down further from a starting temperature equal to or lower than the outlet temperature of the thermal desalination unit. In this manner, the thermal desalination unit and the crop or space heating may make efficient use of the available heat, due to their aligned operating temperatures.
  • In another embodiment according to a method and device of the present invention, the additional heat user is a salt production device producing salt from the brine created in the thermal desalination unit in which the heat transfer fluid in operation is cooled down further from a starting temperature equal to or lower than the outlet temperature of the thermal desalination unit. This may be another energy efficient arrangement, of two components that in practice are often used together, in order to make both fresh water and brine from seawater and to simultaneously make salt from the brine. The fresh water then may be used in the plant or animal growing device, and the salt may be either used or sold.
  • Alternatively, or in addition, the additional heat user may be a steam cycle machine, in particular an organic rankine cycle machine, in which the heat transfer fluid in operation is cooled down from a starting temperature lower than or equal to the outlet temperature of the heat source to a temperature lower than or equal to the inlet temperature of the thermal desalination unit. A steam cycle machine, especially an organic rankine cycle machine may be, among other applications, useful for producing electricity, or for producing mechanical power that may be used for fresh water production in a reverse osmosis process (e.g., a desalination process driven by mechanical pressure). In combination with the thermal desalination unit, it not only makes efficient use of the heat from the heat source, but also serves to provide electricity for the plant or animal growing device. This is in particular the case when the heat source is a solar driven heat source, for example driven by concentrated solar power. With a solar driven heat source using concentrated solar power, temperatures of up to 400 degrees Centigrade may be obtained e.g., temperatures at which it is possible to drive an organic rankine cycle machine running on an appropriately selected organic working medium. Furthermore, a thermal desalination unit, in an example embodiment, operates relatively efficiently at heat transfer fluid inlet temperatures of about 90-120 degrees Centigrade, temperatures typically available at the outlet of an organic rankine cycle fed at around 50-300 degrees Centigrade.
  • In another embodiment according to a method and device of the present invention, at least part of the heat in the circuit is temporarily stored in a heat buffer and then used in at least one of the heat users. This may be particularly useful when one or more heat users temporarily do not need any heat; the heat from the heat source, or from another heat user upstream from the specific heat user(s) temporarily not used, or used at a reduced power, may then be stored until it is needed.
  • Moreover, by using a buffer, temporary peak demands from a heat user may be accommodated for. This provides a method that is more efficient than when a heat user is simply by-passed.
  • In a further embodiment according to a method and device of the present invention, the heat source is a solar driven heat source, in particular utilizing concentrated solar power. Such heat sources combine well with thermal desalination units in the circuit, with respect to thermodynamic efficiency.
  • In a further embodiment according to a method and device of the present invention, a vertical buffer tank is present, and a natural temperature gradient arises in the vertical direction, due to temperature-related density differences in the fluid.
  • In addition, a direct fluid communication may occur in which fluid communication between two components, being heat sources or heat users, without passing other heat sources or heat users (valves and tubes are not regarded as heat sources or heat users).
  • In a further embodiment according to a method and device of the present invention, in a greenhouse, a serial arrangement of a thermal desalination device with other heat users, in particular the heating of the air in the greenhouse and possibly an organic rankine cycle and/or a salt production device, make a high energy efficiency possible. Moreover, it becomes possible to obtain a lower cost price of the system.
  • Exemplary embodiments of the present invention will now be described with reference to the accompanying drawings.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 schematically shows a first embodiment of the system according to the invention.
  • FIG. 2 schematically shows a second embodiment of the system according to the invention.
  • DETAILED DESCRIPTION
  • An exemplary embodiment of a system S1, S2 which is part of a greenhouse for growing plants of the present invention is described with reference to FIGS. 1 and 2.
  • The system S1 includes tubes, or piping, 1 represented by lines. The system S1 also contains a solar collector 2 that makes use of optical mirrors (not shown) to concentrate incident solar rays on a fluid line, and as such, to heat the fluid in the fluid line of the solar collector. The solar collector 2 is part of a fluid loop which includes the tubes 1, valves 3, a thermal desalination unit 4, a salt production unit 5, a heat exchanger 6 for a greenhouse air space heating 7 and an electrical pump 8. Arranged parallel to the line with the solar collector 2 and the pump 8 is a line with a heat buffer tank 9 and a pump 10. Line 11 is a bypass line for the thermal desalination unit 4. Line 12, between the buffer tank 9 and the salt production unit 5, connect the buffer tank 9 with the salt production unit 5 and the heat exchanger 6. The heat exchanger 6 is part of a second fluid loop 13, which loop 13 serves as a thermal connection between the heat exchanger 6 and the space heating 7 of the greenhouse.
  • The salt production unit 5 may be a multi stage flash unit, with an operating temperature between 70 and 110 degrees Centigrade. Alternatively, it may be a high performance salt production device with plastic heat exchangers that may have a slightly lower operating temperature, or it may be an open salt pond which may have an even lower operating temperature, where water evaporates from brine, and salt remains.
  • The buffer tank 9 is a vertical tank, of which a fluid inlet 14 is located at its top end and connected to the heat source outlet 15. A fluid outlet 16 of the buffer tank 9 is located at its bottom end and connected to the heat source inlet 17. The vertical buffer tank 9 has one fluid outlet 18 at its top end, connected via pump 10 to the thermal desalination unit 4, and has four fluid outlets 19 connected to inlets 20 and 21 of the salt production unit 5 and the heat exchanger 6, respectively. Each of the fluid outlets 19 is located at a different height between the top and bottom ends of the buffer tank 9, allowing for different take-off temperatures at the different fluid outlets 19 when a vertical temperature gradient is present within the buffer tank 9.
  • In the method according to an example embodiment of the present invention of system S1, a heat transfer fluid, such as glycol, is circulated through the heat users, in a serial arrangement, i.e., one after the other, i.e. through the thermal desalination unit 4, the salt production unit 5, and the heat exchanger 6 of the greenhouse air space heating 7.
  • The fluid is heated in the solar collector 2, to a temperature of up to 400 degrees Centigrade, then, in normal operation mode, passes through the heat exchanger of the thermal desalination unit 4, giving heat to that unit.
  • The fluid leaves the heat exchanger at around 70-110 degrees Centigrade, and enters the salt production unit 5, cools down further and continues to the heat exchanger 6 at a temperature between 50-90 degrees Centigrade. It returns to the solar collector 2 at a temperature between 20-70 degrees Centigrade, where it starts a new cycle through the fluid circuit.
  • It is possible to change the described normal operation mode to other operation modes, by, e.g., closing and opening valves 3 and activating or stopping pumps 8 and 10.
  • Via tubes 1 and pump 10 heat transfer fluid may be tapped from the buffer tank 9 and may be fed to the thermal desalination unit 4. This may be useful when the solar collector 2 may not be providing enough heat and/or provides heat at inadequate temperatures for the thermal desalination unit 4 to operate or to operate optimally, for instance, during nighttime conditions.
  • Via tubes 12 the buffer tank 9 may be tapped at different heights, and the tapped fluid may be mixed with the fluid from the solar collector 2 entering either the salt production unit 5 or the heat exchanger 6. This may temporarily lead to some loss of energy, but may make it possible to operate these two heat users within their allowed temperature ranges, and thus, to operate the whole system Si, without having the need for a backup system. Moreover, adding fluid from the buffer tank 9, may allow for driving the heat users at their optimal temperature ranges, with respect to life expectancy and/or energy efficiency, thereby saving either investment costs or energy costs, or both.
  • A bypass tube 11 allows for bypassing of the thermal desalination unit 4, for instance when the thermal desalination unit 4 may be subject to maintenance operations.
  • FIG. 2, shows the system S2, which is similar to the system S1 of FIG. 1 but has an additional heat user, in the form of a turbine 25 of an organic rankine cycle. The heat exchanger of the thermal desalination unit 4 serves as the condenser of the organic rankine cycle; thus, the cycle is integrated in the fluid circuit of system S2. The turbine 25 is mechanically coupled to a generator 26 of electricity.
  • Salt production unit 5′ is a high-performance salt production device with plastic heat exchangers, operating at lower temperatures than the multistage flash unit 5 of FIG. 1.
  • Pump 10 of system S1 is replaced by pump 27 integrated in tubes 12′ connecting the buffer tank 9 to an inlet 20, 21, 28, 29 of each of the heat users.
  • In the method according to an example embodiment of the present invention of system S2, a heat transfer fluid, e.g., an organic fluid with a high molecular mass and a boiling point below that of water in the atmosphere, is circulated through the heat users, i.e. through the organic rankine cycle turbine 25, thermal desalination unit 4, the salt production unit 5, and the heat exchanger 6 of the greenhouse air space heating 7. The fluid is heated and evaporated in the solar collector 2, to a temperature up to 400 degrees Centigrade, then, in normal operation mode, passes through the turbine 25 of the organic rankine cycle, where it may lose energy, in terms of both pressure and heat, while driving the generator 26 and thereby producing electricity for the greenhouse climate control equipment (fans, pumps, etc.) and other electrical equipment. Next, the fluid enters at a temperature between 90-130 degrees Centigrade, a heat exchanger of the thermal desalination unit 4 and condenses while giving heat to the desalination unit 4. The fluid leaves the heat exchanger between 70-110 degrees Centigrade, and enters the salt production unit 5′, cools down further and continues to the heat exchanger 6 at a temperature between 50-90 degrees Centigrade. It returns to the solar collector 2 at a temperature between approximately 20-70 degrees Centigrade, where it starts a new cycle through the fluid circuit.
  • It is possible to change the described normal operation mode to other operation modes, by, e.g., closing and opening valves 3 and activating or stopping pumps 8 and 27.
  • Via tubes 12′ the buffer tank 9 may be tapped at different heights, and the tapped fluid may be mixed with the fluid from the solar collector 2 entering any of the heat users. The reasons for doing so are described above with respect to system S1.
  • Not shown in FIG. 2, are bypass tubes in each of the heat users. These bypass tubes may allow the system S2 to operate when one of the heat users may temporarily not be used, e.g. because there may be no heat demand or during maintenance activities. Alternatively, the tubes 12′ may be used as bypass tubes.
  • Also not shown in FIGS. 1 and 2, is an additional heat source, operating on fossil fuel and arranged in parallel and or series to the solar collector 2. This additional heat source provides heat at moments when the demand is higher than the solar collector 2 is capable of supplying.
  • The described and shown embodiments of the invention serve for illustration of the invention. Variations on these embodiments are possible. For example, a buffer container may be interposed between two heat users, instead of between the outlet and inlet of the heat source. Also, a heat user may be composed of a heat exchanger with an attached second fluid circuit as a closed loop that comprises two or more heat users, for example, in order to be able to apply different fluid pressures in each of the fluid loops. This is in particular useful for keeping the organic rankine cycle in FIG. 2 as a separate loop, fed by a heat exchanger through which the heat transfer fluid from the solar collector 2 flows.

Claims (25)

    What is claimed is:
  1. 1. A method for utilizing heat in a plant or animal growing device, comprising:
    circulating a heat transfer fluid through a circuit forming a closed fluid loop;
    heating, via a heat source, the heat transfer fluid in the fluid circuit to a temperature within an efficient operating range of a first heat unit;
    supplying heat from the heat transfer fluid to a first heat unit, the first heat unit cooling down at least part of the heat transfer fluid to a temperature within an efficient operating range of at least one additional heat unit connected in serial arrangement with the heat source and the first heat unit;
    supplying heat from the heat transfer fluid from the first heat unit to the additional heat unit, the additional heat unit cooling down at least part of the heat transfer fluid; and
    returning the cooled down part of the heat transfer fluid from the additional heat unit to the heat source in the fluid circuit.
  2. 2. The method according to claim 1, wherein:
    a heat fluid outlet temperature of one of the respective heat unit and the heat source equals a heat fluid inlet temperature of a following one of the respective heat unit and the heat source.
  3. 3. The method according to claim 1, wherein the first heat unit includes a thermal desalination unit, the additional heat unit includes a heating device of a medium of the plant or animal growing device, and wherein the heat transfer fluid is cooled down further to a temperature equal to or lower than an outlet temperature of the thermal desalination unit.
  4. 4. The method according to claim 3, wherein the heating device includes a crop heating device and/or a space heating device.
  5. 5. The method according to claim 1, wherein the first heat unit includes a thermal desalination unit, the additional heat unit includes a salt production device for producing salt from brine created in the thermal desalination unit, and wherein the heat transfer fluid is cooled down further to a temperature equal to or lower than an outlet temperature of the thermal desalination unit.
  6. 6. The method according to claim 1, wherein the first heat unit includes a steam cycle machine, the additional heat unit includes a thermal desalination unit, and wherein the heat transfer fluid is cooled by the first heat unit down from a starting temperature lower than or equal to an outlet temperature of the heat source to a temperature lower than or equal to an inlet temperature of the thermal desalination unit.
  7. 7. The method according to claim 6, wherein the steam cycle machine includes an organic rankine cycle machine.
  8. 8. The method according to claim 1, wherein at least part of the heat transfer fluid is temporarily stored in a heat buffer for later use in at least one of the heat units.
  9. 9. The method according to claim 1, wherein the heat source includes a solar driven heat source which is driven by concentrated solar power.
  10. 10. A system for utilizing heat in a plant or animal growing device, comprising:
    a fluid circuit including a pump and forming a closed fluid loop, wherein the pump is configured to circulate heat transfer fluid through the fluid circuit;
    a heat source configured to add heat to the heat transfer fluid in the fluid circuit; and
    a first heat unit configured to be heated by the heat transfer fluid in the fluid circuit to an efficient operating range of temperature of the first heat unit;
    at least one additional heat unit connected in serial arrangement with the heat source and the first heat unit, configured to be heated by the heat transfer fluid in the fluid circuit from the first heat unit to an efficient operating range of temperature of the additional heat unit.
  11. 11. The system according to claim 10, wherein the first heat unit includes a thermal desalination unit, the additional heat unit includes a heating device of a medium of the plant or animal growing device, and wherein the additional heat unit is disposed between an outlet of the thermal desalination unit and an inlet of the heat source.
  12. 12. The system according to claim 11, wherein the heating device includes a crop heating device and/or a space heating device of a greenhouse.
  13. 13. The system according to claim 10, wherein the first heat unit includes a thermal desalination unit, the additional heat user includes a salt production device for producing salt from brine created in the thermal desalination unit.
  14. 14. The system according to claim 13, wherein the salt production device includes a salt pond.
  15. 15. The system according to claim 10, wherein the first heat user includes a steam cycle machine, the additional heat unit includes a thermal desalination unit, and wherein the first heat unit is disposed between an outlet of the heat source and an inlet of the thermal desalination unit.
  16. 16. The system according to claim 15, wherein the steam cycle machine includes an organic rankine cycle machine.
  17. 17. The system according to claim 10, further comprising a heat buffer having a fluid inlet and at least one fluid outlet, wherein the fluid inlet is in direct fluid communication with the fluid circuit, and the at least one fluid outlet is in direct fluid communication with a fluid inlet of the heat unit and/or of the at least one additional heat unit.
  18. 18. The system according to claim 17, wherein the heat buffer includes a vertical tank, and wherein the vertical tank includes:
    the fluid inlet; and
    at least one heat transfer fluid take-off outlet disposed at a height between a top end of the vertical tank and a bottom end of the vertical tank, wherein the at least one heat transfer fluid take-off outlet is in direct fluid communication with the fluid circuit, wherein the height between the top end of the vertical tank and the bottom end of the vertical tank is selected such that a temperature of the heat transfer fluid at a respective one of the at least one heat transfer fluid take-off outlet is equal to or approximate to a temperature of the heat transfer fluid in a respective heat unit at a location where the heat transfer fluid from the respective take-off outlet is added to the fluid through the respective heat unit.
  19. 19. The system according to claim 10, wherein the heat source includes a solar driven heat source.
  20. 20. A greenhouse, comprising the system according to claim 10.
  21. 21. The method according to claim 1, wherein the first heat unit includes a thermal desalination unit, the additional heat unit includes a heating device of a medium of the plant or animal growing device, a salt production device for producing salt from brine created in the thermal desalination unit, and/or a steam cycle machine.
  22. 22. The method according to claim 21, wherein at least part of the heat transfer fluid is temporarily storable in a heat buffer for later use in at least one of the heat units, wherein the heat buffer includes a vertical tank, and wherein the vertical tank includes:
    a fluid inlet disposed at a top end of the vertical tank and connected to an outlet of the heat source;
    at least one heat transfer fluid take-off outlet disposed at a bottom end of the vertical tank and connected to an inlet of the heat source; and
    at least one fluid outlet connected to an inlet of a respective heat unit.
  23. 23. The method according to claim 1, wherein at least part of the heat transfer fluid is temporarily storable in a heat buffer for later use in at least one of the heat units, wherein the heat buffer includes a vertical tank, and wherein the vertical tank includes:
    a fluid inlet disposed at a top end of the vertical tank and connected to an outlet of the heat source;
    at least one heat transfer fluid take-off outlet disposed at a bottom end of the vertical tank and connected to an inlet of the heat source; and
    at least one fluid outlet connected to an inlet of a respective heat unit.
  24. 24. The system according to claim 10, wherein the first heat unit includes a thermal desalination unit, the additional heat unit includes a heating device of a medium of the plant or animal growing device, a salt production device for producing salt from brine created in the thermal desalination unit, and/or a steam cycle machine.
  25. 25. The system according to claim 24, wherein at least part of the heat transfer fluid is temporarily storable in a heat buffer for later use in at least one of the heat units, wherein the heat buffer includes a vertical tank, and wherein the vertical tank includes:
    a fluid inlet disposed at a top end of the vertical tank and connected to an outlet of the heat source;
    at least one heat transfer fluid take-off outlet disposed at a bottom end of the vertical tank and connected to an inlet of the heat source; and
    at least one fluid outlet connected to an inlet of a respective heat unit.
US15331551 2011-08-19 2016-10-21 Method and system for utilizing heat in a plant or animal growing device, and greenhouse Pending US20170051924A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AU2011213783A AU2011213783B2 (en) 2011-08-19 2011-08-19 Method for utilizing heat in a plant or animal growing device, corresponding system and greenhouse
AU2011213783 2011-08-19
PCT/IB2012/001493 WO2013027097A1 (en) 2011-08-19 2012-08-03 Method for utilizing heat in a plant or animal growing device, corresponding system and greenhouse
US201414239766 true 2014-04-15 2014-04-15
US15331551 US20170051924A1 (en) 2011-08-19 2016-10-21 Method and system for utilizing heat in a plant or animal growing device, and greenhouse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15331551 US20170051924A1 (en) 2011-08-19 2016-10-21 Method and system for utilizing heat in a plant or animal growing device, and greenhouse

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
PCT/IB2012/001493 Continuation WO2013027097A1 (en) 2011-08-19 2012-08-03 Method for utilizing heat in a plant or animal growing device, corresponding system and greenhouse
US201414239766 Continuation 2014-04-15 2014-04-15

Publications (1)

Publication Number Publication Date
US20170051924A1 true true US20170051924A1 (en) 2017-02-23

Family

ID=46875914

Family Applications (2)

Application Number Title Priority Date Filing Date
US14239766 Active 2032-12-30 US9609811B2 (en) 2011-08-19 2012-08-03 Method and system for utilizing heat in a plant or animal growing device, and greenhouse
US15331551 Pending US20170051924A1 (en) 2011-08-19 2016-10-21 Method and system for utilizing heat in a plant or animal growing device, and greenhouse

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US14239766 Active 2032-12-30 US9609811B2 (en) 2011-08-19 2012-08-03 Method and system for utilizing heat in a plant or animal growing device, and greenhouse

Country Status (4)

Country Link
US (2) US9609811B2 (en)
EP (1) EP2744324B1 (en)
ES (1) ES2545028T3 (en)
WO (1) WO2013027097A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105848475A (en) * 2013-03-15 2016-08-10 深水海水淡化有限责任公司 Co-location of a heat source cooling subsystem and aquaculture
US20150289452A1 (en) * 2014-03-14 2015-10-15 Yale University Modular Living Green Wall System to Provide Heat Rejection
WO2016001369A1 (en) 2014-07-04 2016-01-07 Aalborg Csp A/S System of a desalination plant driven by a solar power plant
US20180298611A1 (en) * 2017-04-17 2018-10-18 David R. Hall Configurable Hydronic Structural Panel

Citations (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3669184A (en) * 1970-07-22 1972-06-13 John K Franzreb Apparatus for heating and cooling a building
US4333736A (en) * 1979-01-26 1982-06-08 Solmat Systems Ltd. Method of utilizing solar ponds for effecting controlled temperature changes of solutions particularly in processes involving the dissolution and/or precipitation of salts
US4340036A (en) * 1979-10-16 1982-07-20 Meadowbrook Resort, Inc. Solar heating system for a greenhouse or other building
US4437263A (en) * 1980-09-04 1984-03-20 Yeda Research & Development Co. Ltd. System for heat storage particularly for using in agriculture
US4462334A (en) * 1982-08-19 1984-07-31 Kim Ho K Solar animal structure
DE3612188A1 (en) * 1986-04-11 1987-10-15 Walter Graef Solar sea-water desalination plant
US5188288A (en) * 1991-06-10 1993-02-23 Combustion Research Corporation Greenhouse heating system
JPH05260857A (en) * 1992-03-23 1993-10-12 Furuta Denki Kk System for storing natural energy in ground of greenhouse for a long period of time
US5433759A (en) * 1994-01-05 1995-07-18 Benson; William M. Underground system for treating soil
WO1998039963A1 (en) * 1997-03-13 1998-09-17 Wijngaart Adriaan Hubertus Joh Symbiosis of sheds and greenhouses
JPH11235130A (en) * 1998-02-23 1999-08-31 Nippon Electric Ind Co Ltd Device for culturing plant
WO1999047856A1 (en) * 1998-03-20 1999-09-23 Rene Wendt Method and device for utilizing waste heat in small heating systems
WO1999053745A1 (en) * 1998-04-16 1999-10-28 Suria Holdings, Societe A Responsabilite Limitee Greenhouse
US6000170A (en) * 1996-07-02 1999-12-14 Davis; Noel Light energy shutter system
US20080131830A1 (en) * 2006-12-05 2008-06-05 Nix Martin E Use of renewable energy like solar, wind, geothermal, biomass, and hydropower for manufacturing combustion air for a fossil fuel burner and firebox
WO2008097163A1 (en) * 2007-02-11 2008-08-14 Lars Eriksson A device for decreasing the carbon dioxide content of the earth
WO2009044623A1 (en) * 2007-10-01 2009-04-09 Mitaka Kohki Co., Ltd. Solar heat utilization system and plant cultivation employing it, and domestic animal breeding method employing it
US20100019053A1 (en) * 2008-07-28 2010-01-28 Jeremiah Toland Heating systems utilizing stored energy as a power source
GB2466500A (en) * 2008-12-23 2010-06-30 Mark Christian Hardiman Distillation apparatus
US20100236164A1 (en) * 2009-03-18 2010-09-23 Mei-Chen Chuang Photovoltaic greenhouse structure
US20100276502A1 (en) * 2006-02-17 2010-11-04 Heat Energy & Associated Technology Limited Method And Apparatus For Commissioning And Balancing A Wet Central Heating System
US20100313874A1 (en) * 2007-12-21 2010-12-16 Hugh Breeden Verey Energy Recovery System
US20120174478A1 (en) * 2010-07-07 2012-07-12 Kuei-Kuang Chen Solar Module for Greenhouse
US20120247013A1 (en) * 2011-04-01 2012-10-04 Chien-Min Sung Plant-growing device with light emitting diode
US20120312885A1 (en) * 2011-06-07 2012-12-13 Tomlinson John L Variable rate heating for agricultural purposes
WO2013027097A1 (en) * 2011-08-19 2013-02-28 Saumweber Holdings Limited Method for utilizing heat in a plant or animal growing device, corresponding system and greenhouse
US20130284818A1 (en) * 2011-08-24 2013-10-31 Panasonic Corporation Heating system control method and heating system
FR3005498A1 (en) * 2013-05-08 2014-11-14 Sunpartner capture device, exchange and heat storage of solar energy
US20160007577A1 (en) * 2013-03-15 2016-01-14 Deepwater Desal Llc Co-Location of a Heat Source Cooling Subsystem and Aquaculture
US20160057943A1 (en) * 2013-05-10 2016-03-03 Korea Institute Of Energy Research Combined heat and power system for greenhouse carbon dioxide enrichment with unified transmission pipes for hot water and carbon dioxide

Patent Citations (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3669184A (en) * 1970-07-22 1972-06-13 John K Franzreb Apparatus for heating and cooling a building
US4333736A (en) * 1979-01-26 1982-06-08 Solmat Systems Ltd. Method of utilizing solar ponds for effecting controlled temperature changes of solutions particularly in processes involving the dissolution and/or precipitation of salts
US4340036A (en) * 1979-10-16 1982-07-20 Meadowbrook Resort, Inc. Solar heating system for a greenhouse or other building
US4437263A (en) * 1980-09-04 1984-03-20 Yeda Research & Development Co. Ltd. System for heat storage particularly for using in agriculture
US4462334A (en) * 1982-08-19 1984-07-31 Kim Ho K Solar animal structure
DE3612188A1 (en) * 1986-04-11 1987-10-15 Walter Graef Solar sea-water desalination plant
US5188288A (en) * 1991-06-10 1993-02-23 Combustion Research Corporation Greenhouse heating system
JPH05260857A (en) * 1992-03-23 1993-10-12 Furuta Denki Kk System for storing natural energy in ground of greenhouse for a long period of time
US5433759A (en) * 1994-01-05 1995-07-18 Benson; William M. Underground system for treating soil
US6000170A (en) * 1996-07-02 1999-12-14 Davis; Noel Light energy shutter system
WO1998039963A1 (en) * 1997-03-13 1998-09-17 Wijngaart Adriaan Hubertus Joh Symbiosis of sheds and greenhouses
JPH11235130A (en) * 1998-02-23 1999-08-31 Nippon Electric Ind Co Ltd Device for culturing plant
WO1999047856A1 (en) * 1998-03-20 1999-09-23 Rene Wendt Method and device for utilizing waste heat in small heating systems
WO1999053745A1 (en) * 1998-04-16 1999-10-28 Suria Holdings, Societe A Responsabilite Limitee Greenhouse
US20100276502A1 (en) * 2006-02-17 2010-11-04 Heat Energy & Associated Technology Limited Method And Apparatus For Commissioning And Balancing A Wet Central Heating System
US20080131830A1 (en) * 2006-12-05 2008-06-05 Nix Martin E Use of renewable energy like solar, wind, geothermal, biomass, and hydropower for manufacturing combustion air for a fossil fuel burner and firebox
WO2008097163A1 (en) * 2007-02-11 2008-08-14 Lars Eriksson A device for decreasing the carbon dioxide content of the earth
WO2009044623A1 (en) * 2007-10-01 2009-04-09 Mitaka Kohki Co., Ltd. Solar heat utilization system and plant cultivation employing it, and domestic animal breeding method employing it
US20100313874A1 (en) * 2007-12-21 2010-12-16 Hugh Breeden Verey Energy Recovery System
US20100019053A1 (en) * 2008-07-28 2010-01-28 Jeremiah Toland Heating systems utilizing stored energy as a power source
GB2466500A (en) * 2008-12-23 2010-06-30 Mark Christian Hardiman Distillation apparatus
US20100236164A1 (en) * 2009-03-18 2010-09-23 Mei-Chen Chuang Photovoltaic greenhouse structure
US20120174478A1 (en) * 2010-07-07 2012-07-12 Kuei-Kuang Chen Solar Module for Greenhouse
US20120247013A1 (en) * 2011-04-01 2012-10-04 Chien-Min Sung Plant-growing device with light emitting diode
US20120312885A1 (en) * 2011-06-07 2012-12-13 Tomlinson John L Variable rate heating for agricultural purposes
US20140245661A1 (en) * 2011-08-19 2014-09-04 Saumweber Holdings Limited Method and system for utilizing heat in a plant or animal growing device, and greenhouse
WO2013027097A1 (en) * 2011-08-19 2013-02-28 Saumweber Holdings Limited Method for utilizing heat in a plant or animal growing device, corresponding system and greenhouse
US9609811B2 (en) * 2011-08-19 2017-04-04 Sundrop Farms Holdings Limited Method and system for utilizing heat in a plant or animal growing device, and greenhouse
US20130284818A1 (en) * 2011-08-24 2013-10-31 Panasonic Corporation Heating system control method and heating system
US20160007577A1 (en) * 2013-03-15 2016-01-14 Deepwater Desal Llc Co-Location of a Heat Source Cooling Subsystem and Aquaculture
FR3005498A1 (en) * 2013-05-08 2014-11-14 Sunpartner capture device, exchange and heat storage of solar energy
US20160057943A1 (en) * 2013-05-10 2016-03-03 Korea Institute Of Energy Research Combined heat and power system for greenhouse carbon dioxide enrichment with unified transmission pipes for hot water and carbon dioxide

Also Published As

Publication number Publication date Type
US20140245661A1 (en) 2014-09-04 application
WO2013027097A1 (en) 2013-02-28 application
US9609811B2 (en) 2017-04-04 grant
EP2744324A1 (en) 2014-06-25 application
ES2545028T3 (en) 2015-09-07 grant
EP2744324B1 (en) 2015-06-03 grant

Similar Documents

Publication Publication Date Title
US6050083A (en) Gas turbine and steam turbine powered chiller system
US6571548B1 (en) Waste heat recovery in an organic energy converter using an intermediate liquid cycle
Sharon et al. A review of solar energy driven desalination technologies
US7191597B2 (en) Hybrid generation with alternative fuel sources
US20070084208A1 (en) Hybrid Generation with Alternative Fuel Sources
US20090125152A1 (en) Method of measurement, control, and regulation for the solar thermal hybridization of a fossil fired rankine cycle
US20100205960A1 (en) Systems and Methods for Combined Thermal and Compressed Gas Energy Conversion Systems
US7340899B1 (en) Solar power generation system
US20050198959A1 (en) Electric generation facility and method employing solar technology
US20020166758A1 (en) Evaporation process for producing high-quality drinking water and high-grade brine from any-grade salt water
Ali et al. Performance assessment of an integrated free cooling and solar powered single-effect lithium bromide-water absorption chiller
US7685820B2 (en) Supercritical CO2 turbine for use in solar power plants
US20080050234A1 (en) Wind turbine system
US20090121495A1 (en) Combined cycle power plant
US20100319684A1 (en) Concentrating Solar Photovoltaic-Thermal System
US20090179429A1 (en) Efficient low temperature thermal energy storage
Mekhilef et al. The application of solar technologies for sustainable development of agricultural sector
US20030046933A1 (en) Cooling systems and methods of cooling
US20150143806A1 (en) Quintuple-Effect Generation Multi-Cycle Hybrid Renewable Energy System with Integrated Energy Provisioning, Storage Facilities and Amalgamated Control System Cross-Reference to Related Applications
US20110283700A1 (en) Solar combined cycle power systems
US20080034757A1 (en) Method and system integrating solar heat into a regenerative rankine cycle
JP2010144725A (en) System and method for heating fuel using solar heating system
JP2013063360A (en) Seawater desalination plant
DE102005013012A1 (en) Latent heat storage for efficient cooling and heating systems
US4449517A (en) Solar heat plant

Legal Events

Date Code Title Description
AS Assignment

Owner name: SUNDROP FARMS HOLDINGS LIMITED, ISLE OF MAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SAUMWEBER HOLDINGS LIMITED;REEL/FRAME:040093/0407

Effective date: 20140302

Owner name: SAUMWEBER HOLDINGS LIMITED, ISLE OF MAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SAUMWEBER, PHILIPP CHRISTIAN;WOLTERBEEK, REINIER RUDY;REEL/FRAME:040093/0112

Effective date: 20140409