1. jarle hausberg - grp pipe solutions in hydro power projects
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GRP Pipe Solutions in Hydro Power projects.
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GRP Pipe Solutions in Hydro Power projects.
Jarle Hausberg,
APS Norway AS
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History of GRP, (Glass fiber Reinforced Polyester)
GRP composite was developed in USA
before the second world war.
A new material with 70 years history!
From the beginning GRP was used inpipes for the chemical industry due to
the very good corrosion resistance.
Today GRP is used in more and more
applications also due to the highstrength and low weight.
Flowtite GRP pipes for more
than 40 years!
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Water Supply
Sewerage
Power
Industrial
Irrigation
Desalination
Applications for GRP Pipe
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DN100 - 4000mm
PN1-6-10-16-25-32bar
Standard length:
6 and 12 meter (1-18)
Full fittings program
GRP Pipe, product range.
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Performance standards for GRP pipes
ASTM American Society for Testing and MaterialsASTM D3517, ASTM D3754, ASTM D3262
AWWA American Water Works AssociationAWWA C950 and design manual AWWA M45
ISO International Organization for Standardization
ISO 10639, ISO 10467
CEN Comit Europen de Normalisation EN 1796,EN 14364
Local, national standards and regulations.
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Water is power power is
money!
Don't loose it on the
way!
Why GRP Pipes in Penstocks?
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Long service life
Corrosion-resistant material.
Low maintenance costs. Low Life Cycle Cost
Less head loss
Best hydraulic characteristic
Low friction coefficient
Essentially constant over time.
Why GRP Pipes in Penstocks?
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Economical
Competitive with other traditionally used materials
Low installation cost, easy to assemble
Low operating costs and long service life!
Why GRP Pipes in Penstocks?
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GRP pipes are easily transported, low weight.
(1/4 of DIP and 1/10 of concrete)
Environmental friendly, can be nested.
For hydro power penstocks different solutionsto terrain vehicle has been used, including
helicopters.
Handling and installation
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GRP pipes has a unique
feature for cold and hot
climate.
The mechanical propertiesremain the same from +30 to -
60.
It doe's not get brittle when it is
cold.
The pipe can be installed
above ground without any
special UV protections!
Why GRP Pipes in Penstocks?
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GRP pipes are often installed on
steep slopes, either buried or above
ground.
The challenges of such installations
must, however, be respected
Installation on steep Slopes
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A high number of GRP
penstocks have been built
around the whole word.
Only in Norway more than 270
Flowtite GRP penstocks.
DN500-2800mm, PN6-32bar.
A proven solution for more
than 40 years!
GRP Pipes in Penstocks, case studies
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GRP Pipes in Penstocks, case studies
Vangpollen Hydropower
Norway
DN700/800mm.PN6-32bar.
Slope up to 46 .
Installed 1989
(3,3MW, horisontal
Pelton~14,9GWh)
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Vinkelfallet hydro power station:
Norway
DN1600-1800mm L=1,6km
PN6-16
Installation in 1982
(7,1MW on two Francis turbines,
yearly production 25,6GWh)
GRP Pipes in Penstocks, case studies
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SAFA hydro power station,
Norway
DN2400/2200mm L=250m
PN6/10Installed 2005
Difficult access downside the
plant required installation with a
crane on a barge.
Pipes painted black after
installation for the environmental
reason.
(2,2MW, 2 Francis turbines, 20GWh)
GRP Pipes in Penstocks, case studies
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LANGFJORDEN
hydro power station,
Norway
DN1200mm L=284m
PN32 (Static pressure 26bar)
Installed 2005
Pipeline on fundaments in
a tunnel from a pressure
shaft in the mountain.
Manhole DN1200/500 PN32
GRP Pipes in Penstocks, case studies
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TWIMBERG hydro power station
Austria
DN1800mm
PN10
L=4,5km (200m in tunnel)
GRP Pipes in Penstocks, case studies
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Fjardara hydro power stations:
Iceland
Station 1:
DN1000mm, L=3,8km
PN6-35bar (static pressure 33,5bar)
(6,4MW)
Station 2:
DN1000mm, L=3,4km
PN6-25bar (static pressure 20bar)
(3,4MW)
Installed in 2007/2008
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Environmental friendly
solutions for the future!
For generations!!
Thank you for your
attention!
GRP Pipes in Penstocks