Page 1

SMALL HYDROPOWER WORKSHOP Lausanne June – July 2005

SPATIAL PLANS AND LOCAL AGREEMENTS FOR SMALL HYDRO ALPHA MENTOR Studies & Project Management

HYETOS Consulting Engineering Firm

M. Alexandrou 28 – A.C. 555 35 PYLAIA THESSALONIKI Ph.N. +302310322498 Fax +302310309768 Email: mentorconsult@the.forthnet.gr

Sq. Νauarinou 3 – A.C. 546 22 THESSALONIKI Ph.N. +302310250601-2 Fax +302310230428 Email: yetos@otenet.gr

DND Mechanical Engeeniring K. Karamanli 158 – A.C. 542 48 THESSALONIKI Ph.N. +302310328610 Fax +302310328610 Email: yetos@otenet.gr


PROJECT'S GOAL

他The main goal of this project is to find at least two suitable locations for the construction of small hydros in the area of Axios river, using the method of multi-criteria analysis.


MULTICRITERIA ANALYSIS AND G.I.S. 他The project consists of a G.I.S. based application that holds all the necessary information of the specific area of interest in the form of information layers on a base map.

MULTICRITERIA ANALYSIS

GEOGRAPHIC INFORMATION SYSTEM G.I.S.

他These layers will clearly designate the state of the specific area as far as terrain model, topography, hydrology, background, habitation, and particular ecosystem are concerned.


FLOWCHART

¾ Stream net ¾ Slope maps ¾ Contour maps ¾ Nearest roads and railroads ¾ Protected Ecosystems ¾ Habitation Zones ¾ Constructions in the region

G.I.S

Function

Final Result


MULTICRITERIA ANALYSIS STREAM NET AND CONSTRUCTIONS

STREAM NET AND CONSTRUCTIONS

Stream Net Existing Construction

1

1

1

0

0

0

0

1

0

0

0

0

1

1

0

0

0

0

1

1

1

1

1

0

0

0

0

0

0

1

0

0

2

0

0

0

0

1

1

0

0

0

0

0

0

0

1

0

1

1

0

0

1

0

0

0

0

0

0

1

0

0

0

0

0

0

1

0

0

0

0

0

0

0

0


MULTICRITERIA ANALYSIS DISTANCE FROM SIGNIFICANT GRIDS OR NETWORKS

DISTANCE FROM SIGNIFICANT GRIDS OR NETWORKS

Significant Grid or Network

1

1

2

2

3

1

2

3

3

3

2

3

3

2

2

3

3

2

1

1

2

2

1

1

1


MULTICRITERIA ANALYSIS PROTECTED AREAS OR AREAS WITH SPECIAL LAND USE

PROTECTED AREA OR AREA WITH SPECIAL LAND USE

A = 0 流/OR 1 Area with Special Land Use or Protected Area Archeological Site, Military Facility etc.

A

A

A

2

2

A

A

A

2

2

A

A

A

2

2

A

A

A

2

2

A

A

A

2

2

2

2

2

2

2

A

A

A

2

0

A

0

A

0

2

1

1

1

1

1

A

A

A

0

2

1

1

1

1

0

2

2

2

2

2

1

0

1

0

1

1

1

1

0

1

1

1

1

1

1


MULTICRITERIA ANALYSIS FUNCTION IMPLEMENTATION

1

1

1

0

0

1

1

2

2

3

1

1

1

2

2

0

0

2

0

0

1

2

3

3

3

1

0

1

2

0

0

0

1

1

0

2

3

3

2

2

1

0

1

0

2

0

1

0

1

1

3

3

2

1

1

1

1

1

0

2

0

0

0

0

1

2

2

1

1

1

2

2

2

2

2

FUNCTION

1

1

2

0

0

0

0

6

0

0

0

0

3

0

0

0

3

0

0

2

0

0

0

0

2


AREA OF INTEREST AXIOS RIVER AREA

Axios River area


CENTRAL MACEDONIA REGION


G.I.S. LAYERS

Stream Net

Slope Map


G.I.S. LAYERS

Protected Ecosystems

Road Grid


G.I.S. LAYERS

Habitation Zones

Flow Model


GIS 2D VISUAL REPRESENTATION


GIS 3D VISUAL REPRESENTATION


2D VISUAL REPRESENTATION


SUITABLE LOCATIONS

他The particular two Small Hydro Project sites are located in the west and east main irrigation channels of the Ellis Dam in river Axios. These channels serve the irrigation needs of the surrounding areas. The water supply is possible through a type S (ogee) spillway. The two channels have very similar geometry and the available design flow in both of them is about 1/3 of the total flow of Axios river. Finally, the gross pressure head is estimated to be about 12m.


SUITABLE LOCATIONS As far as the final decision is concerned one must take into account the following: 他The relief of the Project Area is very mild. 他The Greek part of Axios river is isolated from other streams due to extensive flood-preventing constructions along its shores. 他There is little variation in the flow along the Greek part of the river. 他Ellis dam is the only existing relative project in the region. For all of the above reasons, and from an engineers point of view the only two really suitable spots for the construction of a feasible SHP are the two main irrigation channels of Ellis dam.


PLAN VIEW AND X-SECTION OF ELLIS DAM

WEST IRRIGATION CHANNEL

EAST IRRIGATION CHANNEL


ELLIS DAM SPILLWAY


EAST IRRIGATION CHANNEL


IRRIGATION CHANNEL OUTLET


ASSESSMENT OF SHP FEASIBILITY STUDIES

¾For the assessment of the SHP feasibility, the “RETScreen Small Hydro Project Model” was used to evaluate the energy production, lifecycle costs and greenhouse gas emissions reduction for the two similar central-grid singleturbine, small hydro projects.


ASSESSMENT OF SHP FEASIBILITY STUDIES Estimate Run-of-river User-defined m³/s % m³/s

5 100% 9,00

Flow-Duration Curve Data Time Flow 120,00

100,00

Site Conditions Project name Project location 80,00 Gross head Maximum tailwater effect Residual flow Firm flow 60,00

Small Hydro Turbine Characteristics Gross head Design90% flow to 100% Turbine type Turbine efficiency curve data source Number of turbines Small hydro turbine manufacturer Flow-Duration Curve Small hydro turbine model Turbine manufacture/design coefficient Efficiency adjustment Turbine peak efficiency Flow at peak efficiency Turbine efficiency at design Notes/Range flow Estimate

5%

System Characteristics Estimate 10% Grid type 40,00 Central-grid15% Design flow m³/s 36,500 20% Turbine type Kaplan 25% Number of turbines turbine 1 20,00 30% Turbine peak efficiency % 92,2% 35% Turbine efficiency at design flow % 91,8% 40% Maximum hydraulic losses % 5% 0,00 45% Generator efficiency % 95% 0 10 20 30 40 50 60 70 80 50% Transformer losses % 1% Percent Time Flow Equalled or Exceeded (%) 55% Parasitic electricity losses % 2% 60% Annual downtime losses % 4%

65%

Annual Energy Production Small hydro plant capacity

Estimate 70% 3.453 75% 3,453 80% 607 85% 1,00 90% 53% 95% 16.036 100% 16,036

kW MW kW % MWh GWh

Small hydro plant firm capacity Available flow adjustment factor Small hydro plant capacity factor Renewable energy delivered

% % m³/s %

0,00 1 0,00 Notes/Range 0,00 1 0,00 0,08 1 0,08 0,42 1 0,42 Complete Equipment Data sheet 0,64 1 0,64 0,77 1 0,77 0,85 1 0,85 0,89 1 2% to 7%0,89 0,91 193% to 97% 0,91 90 0,92 100 1 1% to 2%0,92 0,92 1 1% to 3%0,92 0,92 1 2% to 7%0,92 0,92 1 0,92 0,92 1 0,92 Notes/Range 0,92 1 0,92 0,92 1 0,92 0,92 1 0,92 0,92 1 0,92 40% to 95% 0,92 1 0,92 0,92 1 0,92

Flow-Duration and Power Curves Available Flow

Flow Used

4.000 3.500

100,000

2.500

60,000

2.000

Power (kW)

3.000 80,000

1.500

40,000

1.000 20,000

500

0,000 10

20

30

40

50

60

70

Notes/Range

See Product Database

2.8 to 6.1; Default = 4.5

Efficiency Curve - 1 Turbine(s) 1,00 0,90 0,80 0,70 0,60 0,50 0,40 0,30 0,20 0,10 0,00 0

10

20

30

40 50 60 70 Percent of Rated Flow (%)

80

90

Return to Energy Model sheet

Available Power

120,000

0

Estimate 12,0 36,50 Kaplan Standard 1 ABC Ltd. model XYZ 4,5 0% 92,2% 27,4 91,8%

m m³/s turbine

SPLASH Turbine Efficiency Curve Data AXIOS Turbine Turbines Combined 12,0 Flow efficiency running turbine 1,00 Complete Hydrology & Load sheet 5,00 (%) # efficiency 9,00 0% 0,00 0 0,00

m m m³/s m³/s

Flow (m³/s)

(m³/s) 112,00 66,00 51,60 44,00 38,00 34,00 30,00 28,00 26,00 24,00 22,40 21,20 20,00 18,80 17,60 16,80 16,00 15,20 14,80 14,40 14,00

Flow (m³/s)

(%) 0% 5% 10% 15% 20% 25% 30% 35% 40% 45% 50% 55% 60% 65% 70% 75% 80% 85% 90% 95% 100%

Notes/Range

Efficiency

Hydrology Analysis Project type Hydrology method Hydrology Parameters Residual flow Percent time firm flow available Firm flow

80

90

0 100

Percent Time Flow Equalled or Exceeded (%)

Complete Cost Analysis sheet

100


ASSESSMENT OF SHP FEASIBILITY STUDIES Size of Catchment Area 2

(23.747Km is the total catchment area of river Axios)

>23.747 Km2

Mean Annual Flow

129,600 m3/s

Design Flow

≅36,500 m3/s

Minimum Available Flow for Power Generation

3 ≅9,000 m /s

Gross Pressure Head (estimated)

12,000 m

Design Capacity Minimum Available Capacity

3.453 kw 607 Kw

Average Annual Energy Production

16.036 Mwh

Distance to the Connection Point

≅0.500 Km

Voltage of the Network at the Connection Point Project investment cost estimation

150 KV From10.000.000 Euro to 15.000.000

Annual operation & maintenance cost estimation Including: 1. Land lease 2. Property taxes 3. Water rental 4. Insurance premiums 5. Transmission line maintenance 6. Spare parts 7. O&M labour 8. Travel and accommodation 9. General and administrative

≅450.000 Euro


SMALL HYDROPOWER WORKSHOP Lausanne June – July 2005

SPATIAL PLANS AND LOCAL AGREEMENTS FOR SMALL HYDRO ALPHA MENTOR Studies & Project Management

HYETOS Consulting Engineering Firm

M. Alexandrou 28 – A.C. 555 35 PYLAIA THESSALONIKI Ph.N. +302310322498 Fax +302310309768 Email: mentorconsult@the.forthnet.gr

Sq. Νauarinou 3 – A.C. 546 22 THESSALONIKI Ph.N. +302310250601-2 Fax +302310230428 Email: yetos@otenet.gr

DND Mechanical Engeeniring K. Karamanli 158 – A.C. 542 48 THESSALONIKI Ph.N. +302310328610 Fax +302310328610 Email: yetos@otenet.gr

3_2_Arampelos  

http://www.esha.be/fileadmin/esha_files/documents/workshops/Lausanne/3_2_Arampelos.pdf

Read more
Read more
Similar to
Popular now
Just for you