TPi July 2008

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60 Tube Products International July 2008
The detailed engineering followed within six weeks
of the preplanning.
Together with Alstom and the plant operator,
Fiberpipe defined the job specification as well as
the pipe direction. All aspects of the pipe assembly
were grouped together in a quality assurance
concept followed by an acceptance procedure. The
detailed engineering was carried out by Fiberpipe,
including stress analysis, three dimensional tube
conduct, procurement of the components and
turnkey installation of the FRP connecting pipes.
The assembly propositions took into consideration
the knowledge of which resins are resistant to
high temperatures, pressure, insulation, heat loss,
chemical resistance and surface temperature. The
fibreglass components came with a 2.5mm thick
chemical barrier, ensuring optimum reliability. All
components were prefabricated by Fiberpipe, and
the laborious reconstruction
was shortened, resulting in a
planned factory downtime of
only 48 hours.
Pressure resistant pipe
and fast assembling:
capacity increase in
waste incineration
Enertec, Germany, is a
power plant site with waste
incineration, biomass gen-
eration and long-distance
heating supply. Each year
the site recycles 240,000t
waste, as well as 120,000t
biomass generating 110m
kWh electricity and 240m kWh
long-distance heating.
In linewithacapacity increase,
the cooling water circuit of
the power plant needed to
be replaced within six weeks,
and the company wanted to
introduce FRP pipelines. An
external service provider was
entrusted with the planning
of the capacity increase;
because of an existing
collaboration with Enertec,
Fiberpipe was the first point
of contact for the pipeline
construction. Together with
all participants, a detailed test
and acceptance procedure
was created.
▼ Large span between supports: FRP pipe with diameter 1,400mm
▲ Lightweight, fast assembly: cooling water pipe diameter 800mm