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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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slide1

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

slide2

Presentation Overview

  • Introduction
  • Description of Wind

Turbine and Site

  • Position of Wind Turbine
  • Wind Turbine Footing
  • Preliminary Environmental

Impact Assessment

  • Conclusion
introduction
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
wind turbine and site
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

wind turbine and site5
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

wind turbine and site7
Wind Turbine and Site

Site:

  • 78.74 m x 63.50 m
  • 2 water reservoirs
  • Water filtration building

Source : ADI Limited

position of wind turbine
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
position of wind turbine9

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

position of wind turbine10
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

position of wind turbine11

(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

position of wind turbine12
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
position of wind turbine13

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)

position of wind turbine14
Position of Wind Turbine
  • Position of Wind Turbine with Constraints
wind turbine footing
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

wind turbine footing16

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

wind turbine footing17

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
preliminary environmental impact assessment
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
preliminary environmental impact assessment19
Preliminary EnvironmentalImpact Assessment

Impacts studied:

  • Noise
  • Visual
  • Influence on wildlife and vegetation
  • Electromagnetic interference
  • Security
  • Social impact
preliminary environmental impact assessment20
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

conclusion
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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