Development of Net Metering Wind Turbine in Dorchester NB
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Development of Net Metering Wind Turbine in Dorchester NB. Monelle Comeau, René Thibault , Yves Gagnon and Gérard J. Poitras Civil Engineering Student, 4 th year Faculty of Engineering. Presentation Overview. Introduction Description of Wind Turbine and Site Position of Wind Turbine

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Development of Net Metering Wind Turbine in Dorchester NB

Monelle Comeau, René Thibault, Yves Gagnon and Gérard J. PoitrasCivil Engineering Student, 4th yearFaculty of Engineering


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Presentation Overview

  • Introduction

  • Description of Wind

    Turbine and Site

  • Position of Wind Turbine

  • Wind Turbine Footing

  • Preliminary Environmental

    Impact Assessment

  • Conclusion


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Introduction

Elements of Context:

  • 4 themes : micro-gas turbine, small hydroelectricity, fuel cell and wind energy

  • Distributed Power Generation for renewable energy in Atlantic Canada

  • Wind energy theme in collaboration with: Village of Dorchester, UNB and Université de Moncton


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Wind Turbine and Site

Wind Turbine:

  • Model : Wenvor 10-30

  • Rotor diameter : 10 m

  • Fiber glass and Carbon fiber blades

  • Nominal power output : 30 kW

  • Nominal speed : 12.8 m/s

  • 25 m flip tower with guy wires

  • Wind vane orientation rotor

AWTS, PEI


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Wind Turbine and Site

Status of Delivery:

  • Turbine delivered March 2006 (2 years delay)

  • No engineering specifications

  • No technical data

  • No installation manuel

  • No operation manuel

Dorchester, NB



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Wind Turbine and Site

Site:

  • 78.74 m x 63.50 m

  • 2 water reservoirs

  • Water filtration building

Source : ADI Limited


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Position of Wind Turbine

Goal:

  • Positioning the wind turbine into the best

    conditions of wind

    Structure influence:

  • 2 water reservoirs

  • Water filtration building

    Constraints:

  • Dimensions of site

  • Dimension of the wind turbine + anchors

  • Building, parking lot, water reservoir, fence and roads


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Met tower

  • Met Tower

    - 21 months of data

Site

  • RUC-2 (Rapid Update

    Cycle) data

    - 5 years of data

RUC-2

Position of Wind Turbine

Meteorologic

Analysis Data:

Source : Seamless Data Distribution Systems


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Position of Wind Turbine

  • Data Comparison

Met Tower

RUC-2 Data

The Wind Rose : Annual

The Wind Rose : Annual

N

N

18

20

NNW

NNW

NNE

NNE

16

14

15

NW

NE

NW

NE

12

10

10

8

WNW

WNW

ENE

ENE

6

5

4

2

W

0

E

W

0

E

WSW

WSW

ESE

ESE

SW

SE

SW

SE

SSW

SSW

SSE

SSE

S

S

% of power

% of time

% of power

% of time


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(standardized)

Average Speed

Met tower (m/s)

Missing data (%)

Position of Wind Turbine

Evolution of the average monthly wind speed

1

100

0,9

90

0,8

80

0,7

70

0,6

60

Missing data (%)

0,5

50

0,4

40

0,3

30

0,2

20

0,1

10

0

0

200211

200303

200307

200311

200403

200407

Time (Month)

RUC-2


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Position of Wind Turbine

  • Place wind turbine in the North corner of the site

  • Wind perturbed by reservoirs in the South South-West and South-West directions

  • Wind turbine positioned to capture dominant winds


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59.7

44.2

63.5

42.9

78.8

25

42

Position of Wind Turbine

Structure on site

Wind turbine (lowered) and structure

(all dimensions are in meters)


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Position of Wind Turbine

  • Position of Wind Turbine with Constraints


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Wind Turbine Footing

Load Calculation:

  • Dead Load

  • Wind Load (Norms: IEC/CEI 1400-2)

  • Ice Load

    Following the standard CAN S37-94:

  • 6 different cases of loading

  • For each different cases:

    - 2 directions of wind

    - 2 loading modes of forces on the guy wires (distributed/point load)

     24 analysis of calculation


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Rotor

Stay

type 1

Stay

type 2

Anchor 4

Anchor 1

Base

Anchor 3

Stay

type 3

Anchor 2

Wind Turbine Footing

Results:

  • Guy wires

    Type 1 : 98.7 kN

    Type 2 : 36.8 kN

    Type 3 : 23.9 kN

  • Base:

    Fx = 2.1 kN

    Fy = 279.3 kN

  • Anchor:

    Fx = 113.5 kN

    Fy = 109.1 kN


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mt

pfa

mt

loa

ha

nt

la

pft

qt

ot

qt

Wind Turbine Footing

Size of Footing:

pft = 1.8 m qt = 1.7 m

nt = 1.5 m pft = 1.8 m

mt = 0.8 m

pfa = 2.4 m la = 0.9 m

Ha = 0.6 m loa = 2.5 m

Verification already made:

  • Sliding Security Factor

  • Overturning Security Factor


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Preliminary EnvironmentalImpact Assessment

Non-formal study being used:

  • To identify the harmful impacts

    - If necessary, provide some solutions

  • To identify positive impacts

  • Inspired from document: Environmental Impact Statement Guidelines for Screenings of Inland Wind Farms Under the Canadian Environmental Assessment Act


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Preliminary EnvironmentalImpact Assessment

Impacts studied:

  • Noise

  • Visual

  • Influence on wildlife and vegetation

  • Electromagnetic interference

  • Security

  • Social impact


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Preliminary EnvironmentalImpact Assessment

Conclusion of the EIA:

  • Few negative environmental impacts are expected

    - Subjective visual impact

  • Beneficial aspects of the project:

    - Energy production without GHG emission

    - Tourism attraction

    - Research infrastructure

    - Good project for net metering research


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Conclusion

Stages finished:

  • Position of wind turbine

  • Wind turbine footing (Verification)

    - Sliding security factor

    - Overturning security factor

    Stages to Come:

  • All calculations must be verify

  • Some calculations must be verified (soil capacity, reinforcement steel)

  • Detailed footing plan

  • NBPower agreement for the net metering

  • Modality of connexion on the grid


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