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Utility Scale Wind Energy

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Utility Scale Wind Energy Prof. Jinsoo Park UTI-111 Essex County College Introduction Applications of windmills Sailing ships Pumping waters Grinding grains Sawing ... – PowerPoint PPT presentation

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Title: Utility Scale Wind Energy


1
Utility Scale Wind Energy
  • Prof. Jinsoo Park
  • UTI-111
  • Essex County College

2
Introduction
  • Applications of windmills
  • Sailing ships
  • Pumping waters
  • Grinding grains
  • Sawing
  • Generating electricity
  • History of windmills
  • Persia
  • Greece
  • Rome
  • Holland
  • United States

3
Wind energy
  • Wind energy is actually a converted form of solar
    energy.
  • The suns radiation heats different part of the
    earth at different rates during the day and
    night, but also when different surfaces (e.g.,
    water and land) absorb or reflect at different
    rates.
  • This in turn causes portions of the atmosphere to
    warm differently.
  • Hot airs rises, reducing the atmospheric pressure
    at the earths surface, and cooler air is drawn
    in to replace it.
  • Air has a mass, and when it is in motion, it
    contains the kinetic from mass in motion.
  • Some portion of that energy can be converted into
    other forms mechanical force or electricity that
    we can use to perform work.

4
Wind Turbine
  • A wind system transforms the kinetic energy of
    wind to mechanical or electrical energy.
  • Wind turbines are mounted on a tower to capture
    the most energy.
  • Turbines catch the winds energy with their
    propeller-like blades.
  • Usually two or three blades are mounted on a
    shaft to form a rotor.
  • A blade acts much like an airplane wing.

5
Wind Turbine Types
  • There are two basic designs of wind electric
    turbines vertical-axis (egg-beater style) and
    horizontal-axis (propeller style).
  • Horizontal-axis wind turbines are most common
    today, constituting nearly all of the utility
    scale turbines in the global market.

6
Wind Turbine Components
  • A rotor, or blades, which convert the wind energy
    into rotational shaft energy.
  • A nacelle (enclosure) containing a drive train,
    usually including a gearbox and a generator.
  • A tower, to support the rotor and drive train
  • Electronic equipment such as controls, electric
    cables, ground support equipment, and
    interconnection equipment.

7
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8
Wind Amplified Rotor Platform
  • Wind Amplified Rotor Platform (WARP) is a
    different kind of wind system that is designed to
    be more efficient and sue less land than wind
    machines in use today.
  • The WARP does not use large blades instead it
    looks like a stack of wheel rims.
  • Each module is a pair of small, high-capacity
    turbines mounted to both of its concave wind
    amplifier module channel surfaces.

9
Wind Turbine Capacity
Diameter Capacity
60 ft 0.10 MW
164 ft 0.75 MW
216 ft 1.5 MW
279 ft 2.5 MW
328 ft 3.5 MW
394 ft 5.0 MW
10
Average Turbine Size
1980 0.25 MW
1995 0.50 MW
0998-1999 0.71 MW
2000-2001 0.88 MW
2002-2003 1.19 MW
2004-2005 1.44 MW
2006 1.60 MW
2007 1.65 MW
11
Wind Turbine Capacity
  • The output of a wind turbine depends on the
    turbines size and the winds speed.
  • Wind speed is a crucial element in projecting
    turbine performance.
  • A sites wind speed is measured through wind
    resource assessment prior to a wind systems
    construction.
  • Generally, an annual average wind speed greater
    than 10 mph is required for small wind turbines
    while larger utility scale wind plants need a
    slightly higher minimum average wind speed of 13
    mph.

12
Wind Turbine Capacity
  • The power available in the wind is proportional
    to the cube of its speed.
  • Doubling the wind speed increases the available
    power by a factor of eight.
  • For example, a turbine operating at a site with
    an average wind speed of 11 mph could in theory
    generate 33 more electricity than the one at 10
    mph.
  • Therefore, a small difference in wind speed can
    make a big difference in the capacity.

13
The 7.5 MW Jersey-Atlantic Wind Farm
14
Jersey-Atlantic Wind Farm
  • PROJECTThe 7.5-megawatt (MW) Jersey-Atlantic
    Wind Farm is the first wind farm to be built in
    New Jersey, and the first coastal wind farm in
    the United States. The wind farm is located in
    Atlantic County, NJ and is visible to more than
    30 million Atlantic City visitors each year from
    downtown Atlantic City and the Atlantic City
    Expressway. The project produces approximately 19
    million kilowatt-hours of emission-free
    electricity per year. The electricity is used by
    both the Atlantic County Utilities Authority
    (ACUA) Wastewater Treatment Plant and delivered
    to the regional electric grid.      
  • PROJECT DESIGN Five 1.5 MW GE wind turbines
    standing 397 feet tall located on the premises of
    the ACUA Wastewater Treatment Plant in coastal
    Atlantic City, NJ.
  • PROJECT SCHEDULE Ground Breaking- September
    2005Turbine Erection - OctoberDecember
    2005Commercial Operation - December 2005

15
NJ Off Shore Wind Farm
  • Three projects were submitted to the Office of
    Clean Energy in the New Jersey Board of Public
    Utilities in March 2008.
  • In October 4, 2008, Regulators in New Jersey
    awarded the rights on Friday for construction of
    a 1 billion offshore wind farm in the southern
    part of the state to Garden State Offshore
    Energy.
  • The rights, which include access to as much as
    19 million in state grants, is part of New
    Jerseys Energy Master Plan, which calls for 20
    percent of the states energy to come from
    renewable sources by 2020.

16
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17
Garden State Offshore Energy (GSOE) will employ a
propietary deep water foundation technology which
enables wind turbines to be located in deep
waters far from shore. Thanks to these deep
water foundations, the GSOE project will be
located more than 16 miles offshore, making it
virtually invisible from New Jersey's
beaches. From the Music Pier in Ocean City, NJ -
the location closest to GSOE project the wind
turbines will be virtually invisible from shore.
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