AU2021107294A4 - Wind Turbines for Marine Cloud Brightening Dispersion - Google Patents

Wind Turbines for Marine Cloud Brightening Dispersion Download PDF

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Publication number
AU2021107294A4
AU2021107294A4 AU2021107294A AU2021107294A AU2021107294A4 AU 2021107294 A4 AU2021107294 A4 AU 2021107294A4 AU 2021107294 A AU2021107294 A AU 2021107294A AU 2021107294 A AU2021107294 A AU 2021107294A AU 2021107294 A4 AU2021107294 A4 AU 2021107294A4
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AU
Australia
Prior art keywords
mcb
dispersion
sea
wind
marine
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Ceased
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AU2021107294A
Inventor
John Macdonald
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Individual
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Priority to AU2021107294A priority Critical patent/AU2021107294A4/en
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Publication of AU2021107294A4 publication Critical patent/AU2021107294A4/en
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Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G15/00Devices or methods for influencing weather conditions
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D9/00Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20Wind motors characterised by the driven apparatus
    • F03D9/28Wind motors characterised by the driven apparatus the apparatus being a pump or a compressor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D13/00Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
    • F03D13/25Arrangements for mounting or supporting wind motors; Masts or towers for wind motors specially adapted for offshore installation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D80/00Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/80Arrangement of components within nacelles or towers
    • 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
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Power Engineering (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Atmospheric Sciences (AREA)
  • Environmental Sciences (AREA)
  • Wind Motors (AREA)

Abstract

This invention describes a device that can be appended to wind turbines to generate seawater aerosols for cloud albedo climate cooling using excess energy generation. This innovation involves the use of an integrated build or retrofit spraying device consisting of existing technologies (pumps, filters, nebulizers, compressors, tanks and spray diffusers) to utilise offshore or coastal wind turbines as dispersion devices for Marine Cloud Brightening(MCB). Relating narcelle Tower MCD plume MC dispersion generalor Sea or ground surface Seawater pipeline

Description

Relating narcelle
Tower
MCD plume
MC dispersion generalor Sea or ground surface Seawater pipeline
EDITORIAL NOTE
2021107294
THERE ARE TWO PAGES OF DESCRIPTION ONLY
Description
Wind energy has very short energy payback time, often less than one year, calculated by life cycle assessments. To achieve the warming limits of the Paris agreement, negative emissions technologies (NETs) are needed to augment renewable energies.
This invention involves the conversion or initial installation of devices into offshore wind turbines to disperse Marine Cloud Brightening(MCB). Generating MCB from wind turbines will increase the albedo reflectivity from marine clouds which helps to cool the sea surface, protect coral reefs from bleaching and potentially lower the frequency and intensity of hurricanes. These transformations involve simple modifications to existing or new wind turbines and will not impact the carbon-free electricity generation yield of wind farms.
This can be achieved by only generating MCB plumes at night when off peak demand for wind power is low compared with daily energy demand.The cooling effects generated from night time use of 'surplus' energy could earn carbon credits. Use of night time energy will ensure the performance of the wind turbine is optimised and not compromised from incorporation of this device.
This invention consists of a prefabricated spraying device which filters sea water and with the help of pumps and nebulizers to spray sub micron droplets into the boundary layer. The spraying equipment will be housed in a moulded polymer or similar housing that can be strapped around the mast of the turbine, like a limpid growing on a submarine rock. It will be conveniently located for access above the offshore turbine working platform or above the snowline / public security height above ground for a coastal installation. Modifications to an existing turbine involve tapping the power supply and installing integrated controls to remotely operate the dispersion process. Access to the spray equipment will be via hatches at the base of the housing.
At the base of the offshore turbines, a filtration tank incorporates the filtration equipment and is nested around the circumference of the tower. The tank is located above the sea level for maintenance and has a hinged junction for removal. The coastal turbines will have free standing tank on the ground. Spraying will be triggered when atmospheric conditions are optimal ie. low wind and rainfall, optimal stratocumulus conditions. The downwind airflow of sea salt brine can be omnidirectional from offshore wind turbines however coastal wind turbines need to disperse when off shore breezes are prevalent.
With the proposed modifications, wind turbines are transformed into Negative Emissions Technologies(NETs), while also producing renewable energy, increasing their contribution to the fight against climate change and global warming.
Large offshore wind farms could also cool the surface ocean by albedo modification using microbubbles produced by excess energy generation.
The MCB dispersion process could also be adapted for Iron Salt Aerosol(ISA) using FeCl3 aqueous solution as the medium for removal of methane from the atmosphere. The effects of spraying a sea water solution into the air flow will enhance this cooling effect through the range of direct and indirect processes.
The invention is particularly applicable to stimulate cooling the earth's Arctic region to holt melting of the ice sheet and Greenland Ice Shelf(GIS). The invention will be most valuable in summer when accelerating melting is being witnessed on an annual basis.
Figures 1-2 indicate possible configurations of offshore or coastal wind turbines with submarine/ terrestrial filtration and pumps, controls and multi outlet nozzles for spraying fine salt aerosols.
Dispersion of nebulised MCB sea salts will be achieved by a series of nozzles located around the top of the device. These nozzles will operate selectively to spray in the direction of windflow ie. downwind away from the turbine tower. They are also angled at 45 degrees to spray past the nacelle housing above. The added presence of sea salts in the surrounding air will not affect metal parts corrosion as the turbines are already adequately designed to resist sea salt corrosion.

Claims (1)

  1. EDITORIAL NOTE
    2021107294
    THERE IS ONE PAGE OF CLAIMS ONLY
    Claims
    Whilst the process of MCB has been proposed by others, this invention involves a new innovation in dispersion of MCB from existing or new wind turbine infrastructure. The cost, maintenance, monitoring and reliability of using existing infrastructure will be lower than purpose built vessels or fixed small island or coastal structures. Given that the management of wind farms is a mature industry, MCB dispersion will be facilitated if existing wind farm operators adopt this ancillary role. This invention solves the problem of energy generation for MCB by tapping excess energy. It also capitalises existing wind turbine infrastructure in terms of support, location and climatic security. It is unapologetically parasitic in attaching and 'colonising'the wind power'host' structure. Several publications into the application of MCB have shown that there are substantial polar and planetary cooling benefits, a vital requirement to achieve climate stability.
    The Paris Agreement calls for limiting global warming below 2°C. Even if deployment of renewable energies accelerates, all the Integrated Assessment Models scenarios developed by the IPCC for these warming targets require the use of negative emissions technologies removing GHGs from the atmosphere.
    Several technologies have been proposed to cool the Earth surface by increasing its albedo. Marine cloud brightening (MCB) uses an unlimited, natural substance(seawater), is a benign dispersion process and is postulated to locally cool the atmosphere and ocean surface in ways that appear safe and simple. Other studies propose MCB using dedicated ships to spray sea water into the troposphere under the marine boundary layer. If the sea salt aerosols generated by nebulizers have the appropriate size, they will increase the albedo of low altitude clouds, reflecting incoming solar radiation back to space, thus cooling the ocean, potentially weakening hurricanes. The cooling effect is very important and limited amount of Flettner ships can counteract warming from doubled C02 concentration. The amount of sea salt aerosol generated will be over seas and will represent less than 1% of natural sea spray (but the size is different). MCB by Flettner ships as proposed can be fine-tuned, because the ships can move to the better locations and as the MCB is locally emitted it can be adapted to the need to fight hurricanes, or influence el Nino or La Nina effects.
    The installation of these devices would have an immediate impact on marine cloud enhancement in the Arctic by retrofitting to existing turbines on the northern coast of Norway(Fig.3). For 7 months, from April to November, the wind is mainly from the south which means there is potential to disperse marine cloud brightening (MCB) seawater droplets out over the Arctic Sea when sea ice is melting most rapidly. This location also has a high concentration of stratocumulus clouds(Fig.4) which are best for albedo MCB enhancement. Dispersion from these sites, such as the Havoygavlen Wind Park (Fig.5) would occur at night when grid supply demand is low.
    EDITORIAL NOTE Aug 2021
    2021107294
    THERE ARE FIVE PAGES OF DRAWINGS ONLY
AU2021107294A 2021-08-25 2021-08-25 Wind Turbines for Marine Cloud Brightening Dispersion Ceased AU2021107294A4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2021107294A AU2021107294A4 (en) 2021-08-25 2021-08-25 Wind Turbines for Marine Cloud Brightening Dispersion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU2021107294A AU2021107294A4 (en) 2021-08-25 2021-08-25 Wind Turbines for Marine Cloud Brightening Dispersion

Publications (1)

Publication Number Publication Date
AU2021107294A4 true AU2021107294A4 (en) 2021-12-09

Family

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Family Applications (1)

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AU2021107294A Ceased AU2021107294A4 (en) 2021-08-25 2021-08-25 Wind Turbines for Marine Cloud Brightening Dispersion

Country Status (1)

Country Link
AU (1) AU2021107294A4 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023158301A1 (en) * 2022-02-18 2023-08-24 Qimarox Patenten B.V. Wind turbine and a wind park comprising such a wind turbine
NL2031011B1 (en) * 2022-02-18 2023-09-05 Qimarox Patenten B V Wind turbine and a wind park comprising such a wind turbine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023158301A1 (en) * 2022-02-18 2023-08-24 Qimarox Patenten B.V. Wind turbine and a wind park comprising such a wind turbine
NL2031011B1 (en) * 2022-02-18 2023-09-05 Qimarox Patenten B V Wind turbine and a wind park comprising such a wind turbine

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