Floating Power Generation Solutions
Delivering unprecedented marine solutions
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Since 1974, Waller Marine, Inc. has set the standard or innovation and quality in naval architecture and marine services. As EPC Contractors and Marine Engineers, Waller Marine utilizes the latest technologies in developing Floating Power Plants (FPP) and FPSO designs to meet each client's specic requirements. With state-o-the-art engineering sotware, we turn our conceptual designs into a 3D model and virtually walk through the foating power plant to analyze the structure, review regulatory compliance, and resolve design issues beore resources are committed to construction. We employ a diverse group o proessionals to satisy the multi-discipline practices associated with design, construc tion management, regulatory assistance, project development and contractual compliance. On any given project, a Waller design team is comprised o experts in the disciplines o naval architecture, marine engineering, power plant engineering and construction. The depth o experience our personnel hold permits the orging o breakthrough ideas and conceptual designs or the application o traditional land-based generating technologies to a marine environment. environment.
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dynamics that are at play with a 650-ton turbine-generator rotating at high speed, developing an enormous 230,000 horse power, has to be absorbed by the supporting structures. Subsequently, vibration (during run-up, operation and rundown speeds), high structural loading, resonance, and mass damping issues were also taken into consideration to build a successul platorm or the turbine. Additionally, the turbine oundations are supported by the barge structures that are designed to permit the fow o orces into the hull without overstressing components; while still permitting fexure o the hull girder due to dierential weight distribution and thermal gradients. By isolating the turbine oundation rom the infuences o the barge structure is thus a priority. Our turbine support design philosophy considered these variables with a resulting solution that included a large prestressed concrete plinth supported on springs and a system o hydraulic jacks. The plinth, a monolithic reinorced concrete structure, was designed internally with a complex array o rebar and a specially selected concrete mix. This combination produced a high damping capability to absorb the changing vibration induced amplitudes that occur during start up and stop operations, as well as, the structural strength to support high loading. At Waller Marine, we have an extensive portfolio of FPPs using both 60 Hz and 50 Hz gas turbines, ranging from 5 MW to 250 MW in simple cycle mode and up to 500 MW in combined cycle mode. All of our simple cycle FPPs are designed to be easily con- verted to a combined cycle operation wit h the addition of a heat recovery and steam turbine generating barge. Let us design a solution, e ngineer ngineer and construct your next offshore support and transportation vessel.
Only at Waller Marine–with our diversied team o engineers and naval architects–will you nd unique, sustainable solu tions or the design and construction o FPPs and Floating Energy Centers (FECs). The latter being the integration o electrical generating technologies with other commodities such as LNG, resh water, hydrogen based generation, and the simultaneous production production o synthesis gas and chemicals. chemicals. In the development o our most recent FPP, mounting large industrial gas turbines or operation on a foating structure required an in-depth understanding o the challenges in design and construction o highly damped oundations and supporting structures. Foremost, the associated system
3D PDMS modelling sotware used to design the top-side equipment arrangement.
baRGE MountED GE 7Fa Gas tuRbInEs
Speciications NAMES: EPC CONTrACTOr: BuILDEr:
Margarita I and I and Josea Rufna I Walle Maine, Inc. Signal Intenational, Inc.
CLASSIFICATION:
ABS
CONSTruCTION:
All welded steel and einoced concete ondation
LENGTH OvErALL:
300 eet (91.4m)
BrEADTH:
100 eet (30.5m)
DEPTH:
20 eet (6.1m)
LIGHTSHIP WEIGHT:
6,700 Shot Tons
DESIGN DECK LOAD:
6,000 ps
DECK SQ. FOOTAGE:
30,000 s
TurBINE GENErATOr TyPE: GENErATING CAPACITy:
GE 7FA 171 Mega Watts (ISO)–simple ccle
Marine Equipment and Systems Ballast sstem Bilge sstem Oil wate sepaatos Fie pmps; diesel and moto dien Maine sanitation deice Fel, wate, wate, sldge and ballast stoage tanks Potable wate pesse sets Domestic hot wate sstem
Below deck entilation sstems Deck dain sstem Bage seice diesel geneato Bage mooing backets
Power Plant Equipment and Systems Gas tbine cooling fn-an cooles Liqid el sstem (o dal el machines) Diesel el teatment skid (or dual uel machines) Gas el sstem Wate wash sstem Wate injection sstem (i water injection is required) reese osmosis sstem & stoage Gas eceiing station CO2 stoage and distibtion Moto contol cente & switchgea Cental Contol room and ofces with fbe optics Cental commnications sstem Waehose Main step p tansome 11K/230K Axilia tansome Station tansome SF6 Beake Tansmission take-o towe Gas tbine stating sstem (water cooled 12 pulse LCI system) Fie potection and fe fghting sstems 30 mete stack
EPC Contractors Marine Engineers
Walle Maine, Inc.
14410 W. Slanfeld, Hoston TX 77014
tel. +1-281-444-9650
www.wallemaine.com
