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WO2015087035A1 - Système de refroidissement passif pour tour éolienne - Google Patents

Système de refroidissement passif pour tour éolienne Download PDF

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Publication number
WO2015087035A1
WO2015087035A1 PCT/GB2014/052263 GB2014052263W WO2015087035A1 WO 2015087035 A1 WO2015087035 A1 WO 2015087035A1 GB 2014052263 W GB2014052263 W GB 2014052263W WO 2015087035 A1 WO2015087035 A1 WO 2015087035A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat pipes
wind tower
row
cooling system
passive cooling
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/GB2014/052263
Other languages
English (en)
Inventor
Ben Hughes
John CALAUTIT
Hassam CHAUDHRY
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.)
University of Leeds
Original Assignee
University of Leeds
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 University of Leeds filed Critical University of Leeds
Priority to GB1610893.8A priority Critical patent/GB2536164B/en
Publication of WO2015087035A1 publication Critical patent/WO2015087035A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/02—Roof ventilation
    • 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
    • F24F13/30—Arrangement or mounting of heat-exchangers
    • 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
    • F24F5/0035—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 evaporation
    • 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]
    • Y02B30/54—Free-cooling systems

Definitions

  • This invention relates to a wind tower for a building.
  • Wind towers are structures that have long been used for providing natural ventilation and cooling for buildings, especially in regions having hot climates.
  • a wind tower is provided on the roof of a building, and includes an inlet for receiving a flow of air which is then directed to the interior of the building by a duct located within the tower itself.
  • Typical heights of known commercial wind towers are in the range 1- 2 m, with the inlet being provided at the top of the tower. Placing the inlet at this elevated position can allow the tower to receive a relatively clean flow of air and also allow the tower to receive a flow of air that is not inhibited by surrounding structures such as neighboring buildings.
  • Wind towers commonly include multiple inlets which face in separate directions, so that the tower is able to operate effectively even if the direction of the prevailing winds changes. Each inlet can be connected to its own respective duct within the tower.
  • wind tower systems are provided with passive cooling. This can involve directing the flow of air received by the tower through underground cooling tunnels or over moist surfaces before entering living spaces in the building interior.
  • passive cooling in this way can inhibit the circulation of air, reducing ventilation.
  • wind tower systems are not provided with passive cooling of this kind and act primarily to ventilate the building interior.
  • the most common traditional wind towers are the Malkaf and the Badgir wind tower
  • a known type of passive cooling device is the heat pipe.
  • Heat pipes operate on the evaporation-condensation phenomena, and do not have moving parts.
  • a heat pipe can be gravity-assisted or can include a wick material.
  • a heat pipe can comprise a hollow elongate body containing a phase change material such as water. Water evaporating within the heat pipe spreads toward a cold end of the pipe, where it condenses. As it condenses, the water vapour gives up the heat it acquired during evaporation. The condensed water then returns to the opposite end of the pipe to complete the cycle.
  • WO 2012/080736 Al describes a natural ventilator for a building having a plurality of vent blades that define a stack of louvers.
  • the vent blades are capable of movement in a vertical direction between an extended configuration in which the blades are spaced apart from one another and a collapsed configuration in which the blades are brought together to reduce the space between them in the vertical direction to prevent rain and noise ingress when the ventilator is not in use.
  • WO 2009/138768 Al describes a natural ventilator for a building configured to supply optimum rates of fresh air into a building interior.
  • the ventilator is optimised with regard to spacing between vent blades of the louver and the angle of inclination of each blade relative to a horizontal plane.
  • US2007224929A describes a solar roof-ventilating device for compulsorily generating the flow of indoor and outdoor air that includes a hollow ventilating casing provided on the roof to communicate the inside and outside of the roof with each other.
  • the interior of the ventilating casing is provided with a heat dissipator constituted of a plurality of heat-dissipating pieces.
  • a plurality of heat-conducting pipes penetrates through the heat dissipator.
  • the other end of the heat-conducting pipe is connected to a heat absorbing plate made of heat-absorbing materials.
  • the front of the heat-absorbing plate is coated with a layer of black coating to facilitate the heat-absorbing speed of the heat-absorbing plate.
  • US2013273828A describes a ventilation arrangement housing which has an upper curved guide member and a cruciform arrangement of divider plates to define the housing into quadrants. Air may enter and exit the housing via a louver arrangement.
  • a passive cooling system for installation in a wind tower for a building.
  • the system includes a roof section configured to be placed over the top of the wind tower.
  • the roof section has an upper surface and a lower surface.
  • the system also includes a plurality of elongate heat pipes extending downwardly from the lower surface of the roof section for insertion into a duct of the wind tower.
  • a passive cooling system can allow a wind tower to be retrofitted so that it can provide enhanced cooling of a flow of air entering a building.
  • the provision of a cooling system having plurality of elongate heat pipes that extend downwardly from a lower surface of a roof section can allow the system conveniently to be installed in an existing wind tower by lowering it over the tower so that the heat pipes are inserted into a duct of the wind tower.
  • a wind tower for a building The wind tower includes an inlet.
  • the wind tower also includes a duct for delivering a flow of air received at the inlet to an interior space of the building.
  • the wind tower further includes a roof section located at the top of the wind tower.
  • the roof section has an upper surface and a lower surface.
  • the wind tower also includes a plurality of elongate heat pipes located in the duct of the wind tower and extending downwardly from the lower surface of the roof section.
  • the roof section can include a cold sink. Provision of the cold sink in the roof section allows for ease of access to working components of the cold sink for maintenance, since the roof section is located at the top of the wind tower and is thus not obscured by other feature of the tower or building on which the tower may be located.
  • each heat pipe can be in thermal contact with the cold sink.
  • the cold sink itself can include a tank containing a coolant, for example, water.
  • the upper end of each heat pipe can be located within the tank to make thermal contact with the coolant.
  • the cold sink can operate a cooling cycle to maintain the temperature of the coolant.
  • the cooling cycle can be powered by a solar panel, which itself can be located on the upper surface of the roof section.
  • the heat pipes can be arranged in a plurality of rows.
  • the heat pipes in each row can be regularly spaced, and can be coextending so that they are substantially parallel with each other and with the heat pipes in a neighbouring row.
  • the heat pipes in each row can be offset with respect to the heat pipes a neighbouring row. This configuration can allow a flow of air to pass effectively over each heat pipe in the system without the heat pipes in a given row being obscured by heat pipes in a neighbouring row.
  • the amount of the offset can be approximately equal to 0.5d p i pe , where dpipe is a spacing between adjacent heat pipes within each row.
  • a spacing d row between each row, measured from the centres of the heat pipes, can be given by 0.8D ⁇ d row ⁇ 1 -2D, where D is a diameter of the heat pipes.
  • a spacing d p i pe between adjacent heat pipes within each row, measured from the centres of the heat pipes, can be given by 2.3 ⁇ d p i pe ⁇ 2.7.
  • a spacing d row between each row, measured from the centres of the heat pipes is approximately equal to D
  • a spacing d P j pe between adjacent heat pipes within each row, measured from the centres of the heat pipes is approximately equal to 2.5D.
  • the heat pipes can be arranged into a plurality of groups.
  • Louvers can be provided at the inlet or inlets of the wind tower for adjusting a direction of the flow of air received at the inlet.
  • the louvers can direct air flow over the heat pipes.
  • offsetting the heat pipes can allow a flow of air to pass effectively over each heat pipe in the system without the heat pipes in a given row being obscured by heat pipes in a neighbouring row.
  • the amount of the offset can be approximately equal to 0.5dpj pe .
  • the array can have exactly two rows of heat pipes. Adding a third row of heat pipes to the array can overly restrict a flow of air across the pipes.
  • a passive cooling system comprising an array of heat pipes of the kind described above.
  • a wind tower comprising an array of heat pipes of the kind described above.
  • a building comprising one or more wind towers of the kind described above.
  • a method of retrofitting a wind tower with a passive cooling system includes lowering a passive cooling system of the kind described above over the wind tower to insert the elongate heat pipes into a duct of the wind tower and to place the roof section over the top of the wind tower.
  • FIGS. 1A and IB show external views of a wind tower in accordance with an embodiment of the invention
  • Figure 2 shows a building having a wind tower in accordance with an embodiment of the invention
  • Figure 3 shows a passive cooling system for a wind tower, and a wind tower in accordance with an embodiment of the invention
  • Figure 4 shows a cut away view of a wind tower in accordance with an embodiment of the invention
  • Figure 5 shows a cut away view of a wind tower in accordance with an embodiment of the invention
  • Figure 6 shows a cut away view of a heat pipe that can be used in a wind tower in accordance with an embodiment of the invention
  • FIG. 7 schematically illustrates a wind tower in accordance with an embodiment of the invention
  • FIGS. 9A and 9B illustrate the cooling effect of a wind tower in accordance with an embodiment of the invention.
  • Embodiments of this invention can provide wind towers for buildings that, in addition to providing conventional ventilation, can also provide enhanced cooling of air entering an interior space of the building.
  • the wind tower may be provided as a complete unit including an inlet and one or more ducts for delivering a flow of air to the interior space, as well as a roof section that is located at the top of the wind tower from which a plurality of heat pipes extend into the duct(s).
  • a passive cooling system can be provided that includes a roof section and a plurality of elongate heat pipes that extend from a lower surface of the roof section. This passive cooling system can be used to retrofit existing wind towers to provide them with passive cooling. A method of performing this retrofitting of existing wind towers is also envisaged.
  • FIGS 1A and IB show external views of a wind tower 10 in accordance with an embodiment of the invention.
  • the wind tower 10 in this example is square in cross-section and has four sides. It is envisaged that wind towers according to this invention may have a different number of sides (for example, the wind tower may be triangular, hexagonal, octagonal, etc.).
  • the wind tower 10 has a base 6.
  • the base 6 can be provided with features for attaching the wind tower 10 to the roof or other surface of a building.
  • the base 6 can be dimensioned to increase the overall height of the wind tower 10 in accordance with design requirements.
  • the wind tower also includes one or more inlets 4.
  • An inlet 4 can be provided on each side of the wind tower 10. Accordingly, in the present example the wind tower 10 has four separate inlets 4. In other examples, a wind tower may be provided with fewer inlets that the number of sides of the tower, so that only some of the sides of the tower have inlets.
  • the wind tower 10 also includes a roof section 2.
  • the roof section 2 is located at the top of the wind tower 10.
  • the roof section 2 can be detachable from the wind tower 10 to allow access to the interior of the wind tower 10 or to allow access to the heat pipes described below. Accordingly, detachment of the roof section 2 can allow for maintenance or replacement of the features of the wind tower 10 and the cooling system incorporated within it.
  • the roof section 2 can be provided with a flange 16 that can rest against the upper end of ducts that are provided within the wind tower 10, thereby to seal the open ends of the ducts against a flow of air (other than through the inlets 4) and to ensure secure positioning of the roof section 2.
  • the roof section 2 has an upper surface 12 and a lower surface 14.
  • the upper surface 12 can provide space for receiving features such as a solar panel.
  • the upper surface 12 can, in some examples, be sloped to prevent the accumulation of rain or other materials.
  • FIG. 2 schematically illustrates the configuration of the wind tower 10 when it is installed in a building 40.
  • the building 40 includes an interior space 42.
  • the building 40 also includes a surface 44, which would typically be the roof of the building 40, upon which the base 6 of the wind tower 10 can be mounted.
  • the inlets 4 of the wind tower 10 lead to a number of respective ducts 30.
  • two ducts are visible, namely the duct 30A and the duct 30B.
  • Each duct 30 allows a flow of air received at a respective inlet 4 to be delivered down through the wind tower into the interior space 42 of the building 40.
  • a partition section 32 can be provided within the wind tower 10 to define the interior volume of the ducts 30.
  • a windward facing inlet 4 receives a flow of air which enters the corresponding duct 30 within the wind tower 10 and is directed into the interior space 42 of the building 40.
  • a leeward duct 30 (facing away from the incoming wind), would typically act as a return path for stale or warm air to exit the building 40.
  • a leeward duct 30 (facing away from the incoming wind), would typically act as a return path for stale or warm air to exit the building 40.
  • Figure 2 also shows that the wind tower 10 includes heat pipes 20. These heat pipes extend downwardly from the lower surface 14 of the roof section 2.
  • the heat pipes 20 can have a substantially vertical orientation within the wind tower 10.
  • the lateral location of the heat pipes 20 can, in some embodiments, be adjacent the inlets 4, thereby to receive and cool the flow of air received by the inlets 4 before it is delivered to the interior space 42.
  • the heat pipes 20 can, in some examples, correspond in vertical dimension to the vertical dimension of the inlet 4, thereby to ensure that the majority of the air entering the inlet 4 is incident upon some part of the heat pipes 20.
  • FIG. 4 is a bottom view revealing the interior of the wind tower 10, to illustrate the configuration of the ducts 30 and the layout of the heat pipes 20 that extend from the lower surface 14.
  • the wind tower 10 has four ducts 30A, 30B, 30C and 30D. Each duct 30 is substantially triangular in cross-section.
  • FIG. 4 also illustrates that the heat pipes 20 can be arranged into a number of groups.
  • four groups of heat pipes 20 are provided.
  • Each group of heat pipes 20 is located in a respective one of the ducts 30 of the wind tower 10. Accordingly, each group of heat pipes 20 is located to receive and cool air entering the wind tower 10 through a respective one of the inlets 4.
  • FIG. 5 shows a cut-away view of the wind tower 10 which illustrates the flow of air as it enters the inlet 4 of the duct 3 OA.
  • the local direction of air flow is indicated by the arrows labelled A, B and C in Figure 5.
  • the flow of air A is incident upon the inlet 4 of the wind tower 10 and enters the duct 30A.
  • the inlet 4 is provided with louvers 8. These louvers 8 can be provided to redirect the air as it enters the inlet 4.
  • the louvers 8 in this embodiment direct the incident air upwards toward the lower surface 14 of the roof section 2.
  • adjustable dampers 36 can be provided at a lower end of the duct 30. These dampers 36 can be rotated to adjust the volume and/or direction of the flow of air as it enters the interior space 42. The dampers 36 may also be used to seal off the duct 30 completely (e.g. by rotating them through 90°).
  • Figure 5 also illustrates the flow of air over the heat pipes 20. As air flows over the heat pipes 20 it is cooled and consequently the air entering the interior space 42 is somewhat cooler than the external air entering the inlets 4 of the wind tower 10.
  • FIG. 6 illustrates an example of a heat pipe 20.
  • Heat pipes 20 are a well-known device and the heat pipes used in accordance with embodiments of this invention can indeed be conventional.
  • a heat pipe typically operates by absorbing heat at a first end and then emitting the absorbed heat at an opposite end.
  • one or more heat pipes extend downwardly from the roof section 2.
  • the lower ends 24 of the heat pipes 20 are therefore positioned to absorb heat from a flow of air within the duct 30, as the air enters the inlet 4.
  • phase change material such as water.
  • the heat absorbed at the lower end 24 of the heat pipe 20 causes evaporation of the phase change material.
  • the vapour within the heat pipe 20 then rises toward an upper end 22 of the heat pipe 20 where it recondenses back into the liquid state.
  • the recondensed phase change material then falls down under the force of gravity to the lower end 24 of the heat pipe 20 to complete the cycle.
  • the heat pipes 20 can be arranged so that their upper ends 22 are in thermal contact with a cold sink 60. In this way, heat emitted by the upper ends 22 of the heat pipes 20 can be carried away from the heat pipes 20.
  • the cooling power of the heat pipes 20 in accordance with embodiments of this invention is at least in part governed by the operating temperature at which the upper ends 22 of the heat pipes 20 is maintained.
  • the upper ends 22 of the heat pipes 20 are located within the cold sink 60 itself, to provide a good area of overlap for heat exchange.
  • Figure 8 illustrates an example of the layout of the heat pipes 20 extending downwardly from the lower surface 14 of the roof section 2.
  • the heat pipes 20 can be arranged into an array having one or more rows.
  • the heat pipes 20 in each row can be regularly spaced.
  • two rows of regularly spaced heat pipes 26A and 26B are provided. It is envisaged that in some examples no more than two rows of heat pipes may be provided, since the addition of further rows can inhibit effective air flow across the heat pipes 20.
  • the heat pipes 20 in each row can coextend with each other and can also coextend with the heat pipes 20 in the other row(s) in the array.
  • each of the heat pipes 20 in the array is parallel to each of the other heat pipes 20 in the array.
  • the heat pipes 20 in each row can be offset with respect to the heat pipes in a neighbouring row.
  • An example of this is illustrated in Figure 8 in which the heat pipes in the row 26A are offset with respect to the heat pipes 20 in the row 26B by an amount approximately equal to 0.5d P j pe , where d P j pe is the spacing between adjacent heat pipes within each row. In this way, the tendency for the heat pipes 20 in one of the rows to be obscured from the path of the incoming air by the heat pipes 20 in a neighbouring row can be minimised.
  • the spacing between the rows of heat pipes 20 (denoted by d row ) 5 as measured from the centres of the heat pipes 20, can be selected to enhance cooling in a flow of air passing across the array of heat pipes 20.
  • an inter-row spacing drow is optimally around 0.8-1.2 times the diameter D of the heat pipes themselves.
  • the spacing d p j pe between adjacent heat pipes 20 within each row of heat pipes 20 is optimally around 2.3-2.7 times the diameter D of the heat pipes 20.
  • An ideal layout for the heat pipes 20 in terms of cooling power has been found to be an array having two rows as shown in Figure 8, where d p i pe is approximately equal to 2.5D and the inter-row spacing d row is approximately equal to diameter D of the heat pipes 20.
  • an array of heat pipes of this kind can be employed in a wind tower having heat pipes that do not necessarily extend downwardly from the lower surface of a roof section.
  • the heat pipes could be located at a base of the wind tower 10, and may extend laterally across the ducts 30.
  • the heat pipes in this kind of wind tower 10 can thus have a substantially horizontal orientation.
  • Figures 9A and 9B illustrates the cooling effect of a wind tower 10 of the kind described herein on air entering an interior space 42 of a building 40.
  • Figures 9A and 9B show the results of CFD (computational fluid dynamics) simulations that show the temperature of air inside and outside a building 40, and within the wind tower 10 itself.
  • the approximate calculated temperature as a function of position is represented using isobars (the temperatures associated with these isobars, which are generally in the region of 309K-318K, are also shown).
  • Figure 9B is a close up view of the dashed area indicated in Figure 9A.
  • air enters the wind tower 10 from a direction indicated by the arrow labelled W from the surrounding environment 70.
  • the air enters the wind tower 10 and passes over heat pipes 20 located in a first duct 30B. Having been cooled by the heat pipes 20, the air passes down through the duct 30B and enters the interior space 42 of the building 40 as shown by the arrow labelled B.
  • the inlet 4 of the wind tower 10 facing in a leeward direction with respect to the prevailing wind (W) acts as an outlet for the return path of warm and/or stale air.
  • stale and warm air can rise up through the duct 30 A and exit the wind tower 10 as shown at the position labelled 76.
  • the temperature of the air in the surrounding environment 70 is relatively high, it being assumed that the wind tower 10 may be used in a hot country. From Figure 9B it can be seen that the air entering the inlet 4 of the wind tower 10 is substantially cooled by the heat pipes 20 before passing through the duct 30B into the interior space 42.
  • the air within the interior space 42 typically has a temperature which is somewhat lower than the temperature of the air in the surrounding environment 70. Warmer air within the interior space 42 tends to rise up through the leeward facing duct 30A (and/or a sideward facing duct) of the wind tower 10. As shown in Figure 9B, this air is still cooler than the air in the surrounding environment 70, but is somewhat warmer than the air entering the interior space 42 through the duct 30B. As the air rising up through the leeward facing duct 30 A passes over the heat pipes 20 in the duct 30 A it is substantially cooled. The cooling of this air is incidental however, since it then leaves the wind tower 10 through the leeward facing inlet 4.
  • Table 1 Simulation results with the four-sided wind tower with heat pipe arrangement.
  • the temperature difference that is achievable depends on a number of external factors such as the external wind speed (see the velocity inlet speed column in Table 1).
  • the external wind speed see the velocity inlet speed column in Table 1.
  • a greater cooling effect is achievable at lower wind speeds, since the contact time of air entering the wind tower against the heat pipes 20 is greater if the velocity of the flow of air is lower.
  • the diffuser supply velocity refers to the velocity of the flow of air passing down through the dampers 36 that can be provided in the wind tower 10.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Wind Motors (AREA)
  • Building Environments (AREA)

Abstract

L'invention concerne un système de refroidissement passif pour installation dans une tour éolienne pour un bâtiment, une tour éolienne pour un bâtiment, un bâtiment comprenant une ou plusieurs tours éoliennes et un procédé d'adaptation d'une tour éolienne avec un système de refroidissement passif. Le système de refroidissement passif comprend une section de toit conçue pour être placée sur le sommet de la tour éolienne, la section de toit possédant une surface supérieure et une surface inférieure. Le système comprend également une pluralité de caloducs allongés s'étendant vers le bas à partir de la surface inférieure de la section de toit pour insertion dans un conduit de la tour éolienne.
PCT/GB2014/052263 2013-12-09 2014-07-24 Système de refroidissement passif pour tour éolienne Ceased WO2015087035A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1610893.8A GB2536164B (en) 2013-12-09 2014-07-24 Passive cooling system for wind tower

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1321709.6 2013-12-09
GBGB1321709.6A GB201321709D0 (en) 2013-12-09 2013-12-09 Passive cooling system for wind tower

Publications (1)

Publication Number Publication Date
WO2015087035A1 true WO2015087035A1 (fr) 2015-06-18

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017106200A1 (fr) * 2015-12-16 2017-06-22 Amazon Technologies, Inc. Système d'évacuation passive de toit
US20180306460A1 (en) * 2015-10-21 2018-10-25 Frostfree Venting Inc. Method and apparatus for avoiding frost or ice build-up on vent pipes
CN112665068A (zh) * 2020-12-18 2021-04-16 武汉大学 一种用于高热地区独栋棚屋的四向风塔式节能结构
CN113432450A (zh) * 2021-07-15 2021-09-24 洛阳高华环保冷却科技有限公司 一种发电站用空冷器
GB2604379A (en) * 2021-03-04 2022-09-07 Free Running Buildings Ltd Heat Exchanger for Building Ventilator
WO2023102246A1 (fr) * 2021-12-02 2023-06-08 Greenberger, Hal, P. Utilisation de matériaux de refroidissement passifs pour générer un flux d'air par convection libre

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60155842A (ja) * 1984-01-25 1985-08-15 Matsushita Electric Works Ltd 換気装置
EP1785675A1 (fr) * 2005-11-11 2007-05-16 Monodraught Limited Dispositifs de ventilation
EP2148146A1 (fr) * 2007-05-15 2010-01-27 Espec Corp. Equipement de contrôle de l'humidité, équipement de test environnemental et régulateur de température/d'humidité
CN101997364A (zh) * 2009-08-20 2011-03-30 杭州银轮科技有限公司 一种热板式风力发电机组冷却器

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60155842A (ja) * 1984-01-25 1985-08-15 Matsushita Electric Works Ltd 換気装置
EP1785675A1 (fr) * 2005-11-11 2007-05-16 Monodraught Limited Dispositifs de ventilation
EP2148146A1 (fr) * 2007-05-15 2010-01-27 Espec Corp. Equipement de contrôle de l'humidité, équipement de test environnemental et régulateur de température/d'humidité
CN101997364A (zh) * 2009-08-20 2011-03-30 杭州银轮科技有限公司 一种热板式风力发电机组冷却器

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180306460A1 (en) * 2015-10-21 2018-10-25 Frostfree Venting Inc. Method and apparatus for avoiding frost or ice build-up on vent pipes
US10718543B2 (en) * 2015-10-21 2020-07-21 Frostfree Venting Inc. Method and apparatus for avoiding frost or ice build-up on vent pipes
WO2017106200A1 (fr) * 2015-12-16 2017-06-22 Amazon Technologies, Inc. Système d'évacuation passive de toit
US10088181B2 (en) 2015-12-16 2018-10-02 Amazon Technologies, Inc. Passive roof exhausting system
US11221154B2 (en) 2015-12-16 2022-01-11 Amazon Technologies, Inc. Passive roof exhausting system
CN112665068A (zh) * 2020-12-18 2021-04-16 武汉大学 一种用于高热地区独栋棚屋的四向风塔式节能结构
GB2604379A (en) * 2021-03-04 2022-09-07 Free Running Buildings Ltd Heat Exchanger for Building Ventilator
GB2604379B (en) * 2021-03-04 2024-01-03 Free Running Buildings Ltd Heat Exchanger for Building Ventilator
CN113432450A (zh) * 2021-07-15 2021-09-24 洛阳高华环保冷却科技有限公司 一种发电站用空冷器
WO2023102246A1 (fr) * 2021-12-02 2023-06-08 Greenberger, Hal, P. Utilisation de matériaux de refroidissement passifs pour générer un flux d'air par convection libre

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