AME POWER PLANT REFERENCES

POWER PLANT PRESENTATION 2016
SUMMARY OF MAJOR INTERVENTIONS ON
DESIGN AND SUPERVISION OF POWER PLANTS
It has been followed by interventions of different complexity, at Unimar TPP in
Ambarli (TR); Bandirma Natural Gas Combined Cycle Power Plant, 936.5 MW (TR);
Aliağa Thermal Power Plant, 350 MW (TR); Mesaieed (Qatar) ; Bekirli Coal-fired
Thermal Power Plant - 2x600 MW (TR); Al-Khalij Thermal Power Plant, 4x350 MW
(Libya); El Ain El Sokhna Supercritical Thermal PP - 2x650 MW (Egypt); Samsun
Combined Cycle Power Plant, 870 MW (TR); Atlas Iskenderun Coal-fired Thermal Power
Plant - 2x600 MW
Apart earlier interventions on the design of marine pipelines and intake structures, a
“full immersion” in the power plant sealine design and supervision started with the
Sugözü - 2x605 MW Power Plant in Turkey
The presentation does not include all other sealine
projects, ie. outfalls, pipelines for desalination plants
and collateral activities, which are covered by a more
general presentation of Avanzini Middle East.

SUGÖZÜ POWER PLANT
- İSKEN İSKENDERUN ENERJI ÜRETIM VE
TICARET A.Ş. - 2 X 605 MW TURKEY, 2000
Sealine data:
 Intake: GRP, 4 x ND2800, length 415m with 4 separate concrete intake structures
 Discharge: GRP, 4 x ND2400, length 1280m , 4 diffusers with 3 ports each
CONTRACTING: SIEMENS – GAMA - TEKFEN

Main tasks have been:
 assessment/revision of the base
design prepared by Siemens of
the intake and discharge sealines
 evaluation, design and
specifications for GRP (FW
continuous mandrel type) -
assistance in the qualification of
the supplier and control and
testing of the pipe production
 Executive design and
specifications for the sealines
and coastal scour protection
 Design of the intake structures
and of the flexible connection to
the pipelines
 part time supervision in
assistance to the main
contractor's
team in the pipeline
installation phase
[SÜGÖZU 2]

Phase 1 – at producer’s factory
 Consultant for pipe qualification
 Supervision of production
 Witnessing of production tests
 Supervision of the production
of fittings
 Supervision of shipments
Main Contractor : GAMA (TR)
Pipe Supplier : SUBOR (TR)
Onshore cooling water circuit,
GRP ND 2500, length ≈6000m
AL-KHALIJ THERMAL POWER PLANT
GECOL - GENERAL ELECTRICAL COMPANY
OF LIBYA
4x350 MW – LIBYA (2000-2001)

Phase 2 – in the field
 Supervision of pipe laminations and curing
 Assistance in verification of installation drawings
 Supervision of installation and backfilling
 Assistance to hydraulic testing
[AL KHALIJ 2]

Main Contractor : GAMA (TR)
Pipe Supplier : AMITECH SPAIN (ES)
Marine Contractor Geocean FR
AL-KHALIJ THERMAL POWER PLANT
SEALINES
Observation of installation during the presence on site

AMBARLI, UNIMAR THERMAL P0WER PLANT
(2005)
Construction of new tapered diffuser, removal
of the existing one and connection of the new
one to the main line.
Contractor: STFA (TR)
The need of the substitution of the original
diffuser with a new one to be connected to the
main GRP pipeline ND2500 was originated by
updated thermal discharge requirements
While the construction of the new diffuser on
piling did not present in itself particular
problems, the removal of the old from the main
line and the connetion of the new was “space and
time limited”

It was requested to perform the connection respecting the
existing alignment and executing the intervention in less
than 12 hours to ovoid the interruption of the production.
The SOW was the study, together with the client’s and
contractors engineering team, of the necessary connection
tolerances and of the pipe spools and accessories to
compensate such tri-dimensional tolerances
A combination of GRP short
spools and of tailor-made
steel bolted Compression
Couplings, designed with
±200 mm longitudinal insertion
tolerance and ± 3° allowable angular deflection has been
used to compensate the installation misalignment.
The arrangement permitted the realization of the tie-in
in ≈8 hrs, practically without disturbance
to the TPP operation.
[UNIMAR 2]

MESAIEED A (QATAR) 2009
LAND SECTION OF INTAKE LINE GRP ND 1800
ND 1800, 6 km long intake line on land under water
table level
The request of expertise had two main aspects.
The first was the peer-review of the main calculation
aspects, i.e. hydraulics, deflection, ovalization
etc. and the analysis of the possible tolerances.
The second aspect was the analysis of the leaks
which appeared after backfill and of their repair
with internal lamination using a technique and
materials proposed by the pipe supplier.
With a few exceptions,
all measured data of
gap, deflection and
ovalization were well
within the design
limits.
In a dewatered pipe, the system is acceptable
and has proven leakproof.

BANDIRMA NATURAL GAS CCTP
ENERJISA ENERJI ÜRETIM A.Ş
1 x 936.5 MW – TR (2010)
Cooling water GRP pipelines – 2 x 2200 intake lines 200m long
to -23 m depth and 1 x 2400 outfall 350m long with diffuser
at -29m depth.
CONTRACTING: ATEC (AUSTRIA)
SOW
Analysis of the contractor’s design of a
twin intake pipelines and related offshore
intake structures, and of the discharge line
and diffuser
Peer-Review of the executive design
executed by the marine contractor
 Analysis and control of the diffuser installation
in soft bottom area

After start-up: evaluation of the reasons of the
displacement and disconnection of the discharge pipe on the
slope, study of the stabilization and assistance in the
repairs of pipeline.
[BANDIRMA 2]

BEKİRLİ COAL-FIRED THERMAL POWER PLANT –
İÇDAŞ ELEKTRİK ENERJİSİ ÜRETİM ve YATIRIM A.Ş.
2 X 600 MW – TR (2010)
GRP ND 3500, 450 mm long intake line with a 90m
semi-buried diffuser at -35m
The SOW included several stages
• The coordination and assistance in the field to the
surveyor and assistance in the reporting
• Hydraulic and diffuser calculations and outline
design
• Preparation of the documents for the Ministerial
approval
• Analysis of the seismic profiles to
define the safest route and choice of
the centre line

After the choice, it was studied
a safe stabilization system along the 27% slope.
The risk was not only the sliding downwards of the
pipe, but also the eventual settlement.
The solution was found by
using 6 lateral marine lugs
and pipes with anti-sliding
ribs.
The upper bend was
connected with a steel
compression coupling
permitting a ±3° angular
deflection and the lower one
was anchored by a thrust
block.
[BEKIRLI 2]

GRP 3 x ND 3000, 2 x 1280 + 1 x 1350 mm long
EL AIN EL SOKHNA SUPERCRITICAL THERMAL PP
EAST DELTA ELECTRICITY PRODUCTION Co - 2X650 MW – EGYPT
Phase 1 – at FPI Factory in
Cairo
 Consultant for pipe
qualification
 Supervision of production
 Witnessing of production
tests
 Supervision of the
production of fittings,
chlorination pipes and of the
double chamber manholes
Main Contractor : ORASCOM-BESIX
Pipe Supplier : FUTURE PIPE INDUSTRY Egypt
Supervision requested by PGESCo -Egypt
 Control of shipments

POWER PLANT PRESENTATION 2016[SOKHNA 2]
The second part of the SOW has been the peer
review of the design “for construction”, the
evaluation and assessment of the installation
method, a part time installation control and the
verification of the pipe joints .

POWER PLANT PRESENTATION 2016[SOKHNA 3]
The pipes were connected across the joint with marine
lugs. Part of them were kept tight and part released after
installation.
A 16mm gap inside and a maximum 0.5° was specified at
each joint by the client. However, the couplings tightness
had been tested in the factory
with a 63mm gap and 1.2°
at 9 bar without leaks.
The measure of gaps in different stages of installation brought to
an animated discussion and to the definition of limits agreed
between client, pipe producer and contractor and accepted by us.
The study about the tolerances was the most interesting part of
the supervision.
The values of gaps in
4 points at each coupling
have been recorded immediately after each pipe’s
installation and after the completion of 100-120m
sections before the backfill.
Only minor changes due to local settlements have
been found and eventually corrected,

After the examination of the geometric parameters with the pipe supplier, it
was presented to the client a revision of the acceptable values (after backfill)
proposing 90 mm gap and 0,9°as “safe”. In theory, larger gaps could be
exceptionally accepted, provided that the position of the gasket from the
coupling edge was at least 25mm (defined as “gasket not visible”)
[SOKHNA 4]
It must be noted however that the value of
tolerances depend from the diameter, the
geometry of pipe spigot and of the double
bell coupling.
The comparison of the values
“before and after” demonstrated
that with the enhanced safe value
of the tolerances only 3% of the
joints needed a repair, mostly due
to the displacement of the gasket.

ALIAĞA THERMAL POWER PLANT
IZDEMIR ENERJI ELEKTRIK URETIM A.S. -
350 MW – TR (2013)
SOW
Assistance during the
environmental studies and preliminary route choice
 assistance during the third-party executive design and
peer-review of the issue for construction
 Part-time inspection of workmanship and supervision
during installation
Construction of the
900m long HDPE ND
1200 intake line with
GRP intake structure
and of the 700m long
discharge ND 900 with
90m diffuser

SAMSUN COMBINED CYCLE POWER PLANT
OMV GAS & POWER - 870 MW – TR (2011)
Main Contractor: METKA – Power Project – Costantinidis (GR
Pipe Producer : SUBOR (TR)
Intake Structures Producer : ARMAPLAST (TR)
GRP Pipelines
 3 x ND 2400 x 860m intake lines with GRP intake
structures with OD 14m
 2 x ND 3200 x 600m discharge lines with diffusers
SOW
 Peer review of the basic design and
hydraulic calculations
 Executive design and specifications
 Outline design of Intake Structure
 Installation tender specs

POWER PLANT PRESENTATION 2016[SAMSUN 2]
 Design of the connection to the pump chamber and
discharge pit with the use of steel compression
couplings
 Supervision to the pipe production
and testing

POWER PLANT PRESENTATION 2016[SAMSUN 3]
The 3 GRP intake structures have been stabilized
after installation with grout poured inside the body

ISKENDERUN COAL-FIRED THERMAL
POWER PLANT
ATLAS POWER GENERATION INC.
2 X 600 MW -TR (2014)
Pipe Producer : SUPERLIT (TR)
GRP, ND 4000, length 700 m discharge
line with 4 parallel diffuser branches,
each with 7 ports
Pipe supplied with Double Bell Couplings with full-face
embedded gasket and rotating marine lugs

Discharge line 1 x ND 4000 with complex diffuser
with 6 parallel ND 2300 branches, each with 7 ports

Peer-review of the outline design, executive hydraulic and diffuser calculations,
outline design, executive design for construction
KARABIGA COAL-FIRED THERMAL POWER PLANT
CENAL ELECTRIC POWER GENERATION INC.
2 X 660 MW -TR (2014)
Pipe Producer : SUBOR (TR)
 GRP 3 x ND4000 Intake lines (lengths
630, 615, 600 m) each with a Ø18m
intake structure
 1 x ND3800 intake 485m long with
Ø14,2 intake structure
 3 x ND3800 discharge lines with
multiport diffuser (length 920, 965,
1015 m)

AVANZINI MIDDLE EAST FZE
Marine pipeline design and consulting
Saif Zone POBox 121256 Sharjah
Mob. +971.50.9391572 (UAE)
E-mail avanzini@mideastfze.com
Independent Professional Engineer
Cemil Topuzlu Cad. Bal Apt. 26-1
34726 Ciftehavuzlar, Istanbul, Turkey
Tel 0090.216.3692011 / Mob.
0090.542.3580445
E-mail carlo.avanzini@sealinecons.com
CV SUMMARY
Name Carlo Avanzini, Dr. Engr.
Born Trieste ( Italy ) 31.10.1939
Nationality Italian
Degree Naval Architecture,& Naval and Mechanical
Engineering, University of Genova,1963
Languages Italian ( mother tongue), English (excellent,
written and spoken), German (fluent), French
(fair), Spanish (fair), Turkish (elements)
Registrations Chamber of Engineers, Genova, Nr. 8679A
Personal specializations
• Consulting, preliminary design, studies and investigations, Hydraulic studies on
pipelines intake structures, design of land and marine pipelines (oil & gas,
aqueducts, sewerage lines), outfalls and intake/discharge lines for cooling water
systems and desalination plants
• Preparation of installation manuals; qualification and testing of tubular materials; engineering assistance in
development and application of products for marine installation, qualification of marine Contractors
• Preparation of specifications and contracts, project coordination and planning, project management, Executive
engineering and design for construction, Construction , testing and commissioning supervision

AME POWER PLANT REFERENCES

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