Fossil Fuel vs Wind Generation Powerpoint - edited ajm
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Transcript of Fossil Fuel vs Wind Generation Powerpoint - edited ajm
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The Burning of Fossil Fuels vs.
Wind Generation to Produce Electricity
Presented By: Aiden Martin & Jennifer Kennedy
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A Need for Change Exists
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Introduction
Purpose is to analyze and compare the pros and cons of wind generation over burning fossil fuels
Burning fossil fuels have harmful effects on the environment
Wind farms reduce these effects
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Generation In Newfoundland..
Various Hydroelectric stations
Wind , Diesel , Hydrogen (Ramea)
Diesel Turbines (Stephenville)
Biomass Fuels (Corner Brook)
Fuel Oil (Holyrood Thermal Generation Station)
Wind Turbines (Fermeuse & St. Laurence)
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Main Discussion
Holyrood Thermal Generating Station
Fermeuse Wind Farm
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Fermeuse Wind Farm
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Fermeuse Wind Farm
Located approximately 800 meters west to the town of Fermeuse
Consists of 9, 3 MW Vestas V90 Turbines
Started supplying power to the grid in April 2009
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V90 Turbines
A 3 bladed turbine with pitch control and variable speeds
80 m tall with rotor diameter of 90 m
Cut in speed 3.5 m/s, rated speed 15 m/s, cut out speed 25 m/s
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V90 Power Curve
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Operating Principal
Wind travels along rotors to create “lift”
Shaft inside the nacelle turns
Shaft moves a magnetic field generator
Electricity is distributed via transmission lines
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Inside V90
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Advantages of V90’s
Sets a high efficiency standard for compact turbines
Simplistic installation and maintenance
Pitch Control
Noise Reduction
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Advantages of FermeuseJobs brought to the community
Zero harmful emissions
Provides residents and businesses clean renewable energy
Tax breaks for land owners
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Disadvantages of V90’s
Cut in/out speeds of 3.5/25 m/s
Storage device for high-output turbines doesn’t exist
20 year life expectancy
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Disadvantages of Wind Farm in Fermeuse
Unpredictable rate of wind speed
Applied as secondary electricity source
Costly start up fee
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Thermal Plant Operating Process
Begins with a supply of demineralized water pumped to the condenser units.
Water is preheated and fed to dearerator
Water is preheated again by the economiser before being fed to boilers
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Process Continued ..Upon entering the economiser feed water absorbs heat from hot gas exiting the stack
Feed water enters the boiler then vaporized and superheated due to combustion of fuel in the furnace
High pressure steam causes a series of turbines to rotate which is coupled to a generator
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Holyrood Thermal Generating Station
Located in Holyrood, Newfoundland
Commenced Operation In 1969
Able to supply 25-40 percent of islands requirements
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Holyrood Thermal Generating StationGenerating capability of 490 MW
Generators output 16000 Volts at 7000 Amperes
Voltages are transformed to 230 000 volts
Produces over three billion KWH of electricity annually
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Holyrood Thermal Generating StationBurns “number 6” oil up to 18,000 barrels a day during peak operation
Produces 500 000 Kg of steam per hour at 13790Kpa and 540 degrees C
The condensers use approximately 250 000 liters of seawater a minute
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Advantages
Magnitude of Output is High
Capable of Producing 25 – 40 % of N.L’s requirements
Reliable while operating under designed conditions
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Disadvantages
Plant is 45 years old and equipment is reaching lifespan
Maintenance is increasing in difficulty and becoming frequent
Safety becomes a concern for operators
Increase in environmental policies results in a need for upgrades
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DisadvantagesWhen load becomes unstable system may trip
When offline system takes several hours to reset
Relatively costly and inefficient due to aging equipment
Increasing of pollution to the environment due to an increase of demand is undesirable
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Environment
Holyrood named one of Canada’s worst polluters
Have since changed the fuel type
Fermeuse saves HTGS 300,000 barrels annually
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Land Use
Nine turbines to be place 5-10 rotor diameters apart
Space for roads and transmission lines
Majority of land still compatible with agriculture
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Turbine Layout
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Land Use
HTGS requires a massive construction footprint
Housing for various components
Close to seawater
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Operation
Wind power is in exhaustible
Main concerns : sound and visual pollution
Personal Opinion
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Operation
HTGS from 2000-2010 emitted approx. 1.1 mil tons
Upgrade to reduce sulphur emissions only
Requires 100 employees to operate
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Weather
Cut in and Cut out speeds
Newfoundland’s average wind speed
Suitable for back up power during storms
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Weather
Winter of 2013
Explosion at HTGS
#Dark NL
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Winter of 2013
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Conclusion
HTGS is costly to operate and continues to emit more greenhouse gas to the atmosphere annually. Equipment is reaching lifespan and pointless to upgrade. A need for a primary efficient environmentally friendly method to produce electricity exists. With a larger reliable primary source, a proportional increase in number of wind farm projects will be possible without a requirement to develop new technology.
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Recommendations
A cell applicable for storage of large quantities of charge
Ease off investments/upgrades of HTGS
Invest more in environment friendly primary resources (muskrat falls)
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ReferencesBartlett, S. (2012, May 28) Generating Change. The Telegram. Retrieved November 12, 2014 from: http://www.thetelegram.com/News/Local/2012-05-28/article-2989523/Generating-change/1
Department of Natural Resources-Newfoundland & Labrador. (2012, November) Environmental Benefits of Closing the Holyrood Thermal Generating Station.[PDF File] Retrieved October 15, 2014 from: http://www.powerinourhands.ca/pdf/MuskratEnvironment.pdf
Government of Newfoundland & Labrador. (2012, November 16) Natural Resources Environment and Conservation. Significant Environmental Benefits to be achieved with Closing Holyrood Thermal Generating Station. Retrieved November 6, 2014 from: http://www.releases.gov.nl.ca/releases/2012/nr/1116n07.htm
Newfoundland & Labrador Hydro. (c. 2010) Power Your Knowledge. Retrieved October 8, 2014 from: http://www.poweryourknowledge.com/wind.html
Newfoundland & Labrador Hydro. (c. 2010) Wind Power Info Sheet. Retrieved October 8, 2014 from: https://www.nlh.nl.ca/HydroWeb/NLHydroWeb.nsf/0/FCE9CF2E6CFC7772A3257648006A5106/$File/FactSheetWindPower.pdf
Paga D. (2013, July 25) Faculty of Engineering and Applied Science. Modelling and Simulation of Wind Speed and Wind Farm Power Prediction. [JPG Image] Retrieved November 6, 2014 from: http://www.engr.mun.ca/~tariq/deepa.pdf
Pennell, J. (2013, January 23) Rolling Blackouts Possible. The Telegram. Retrieved October 15, 2014 from: http://www.thetelegram.com/News/Local/2013-01-23/article-3162056/Rolling-blackouts-possible%3A-NL-Hydro/1
Union of Concerned Scientists (USCUSA) (c.2010) Environmental Impacts of Wind Power Retrieved October 20, 2014 from: http://www.ucsusa.org/clean_energy/our-energy-choices/renewable-energy/environmental-impacts-wind-power.html#.VHh_ujHF8YM
Vestas Wind Systems (2009, November) V90-3.0 MW. Retrieved November 12, 2014 from: http://www.vestas.com/Files/Filer/EN/Brochures/Vestas_V_90-3MW-11-2009-EN.pdf
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QUESTIONS
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Thank you