offshore kurz solar

1 2013 Solar Turbines Incorporated

Packaging Turbomachines for

Offshore ApplicationsRainer Kurz

Solar Turbines Incorporated, Klaus Brun

Southwest Research Institute, Marybeth Nored

Apache CorpGas Electric Partnership 2013


Scope

Turbomachinery in Offshore Applications Certification Movement and Deflection Air Fuel Weight


Offshore Applications

Generator Set

Mechanical Drive

Multi Body Compressor Set


Gas Turbine Installation on an FPSO

Power Generation Mechanical Drive


Certification


Certification and Compliance

Classification of Floating Offshore Installations, Fixed Location FPSO / FPU, TLP, SPAR, CTs

Facilities Offshore Guide Fixed Leg Platforms

Steel Ships Rules for Building and Classing FPSOs


Division 1Zone 1

Division 1Division 2

Hazardous LocationsHazardous Locations

1000 Hrs./Yr.10 Hrs./Yr.1 Hr./Yr.

Duration of time Gas is Present

Risk

Not Classified

Zone 0

Zone 2

10

2013 Solar Turbines Incorporated

Movements and Deflection

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Movements

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2013 Solar Turbines IncorporatedTOP VIEW

SIDE VIEW

Fluid Management

Evaluate L/O Tanks for Pitch & Roll using CFD

Bearing Scavenge Systems

Package Scavenging

Separate Lube Oil Tank

Lube Oil Tank Baffles

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Moderate Package Scavenge System

PACKAGE SCAVENGE OIL TANK

Lube Oil Tank and Drain Vent System Lube Oil Supply System

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Installation Orientation

Parallel Orientation

ROLL ANGLE

Perpendicular Orientation

OIL CANT DRAIN TO TANK

OIL CAN DRAIN TO TANKROLL

ANGLE

OIL CAN DRAIN TO TANK

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Deck Deflections

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Base Plate MountingBase Plate Mounting

TTS105-001

PACKAGE MOUNTING SURFACE

DECK MOUNTING SURFACE

STAINLESS STEEL VIBRATION ISOLATORS

SPHERICAL BEARING

Anti-Vibration Mount (AVM) Method

Gimbal Mount Method

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3-Point Mount Base Plates

TTS10

Single-Piece Base Plate

Two-Piece Base Plate

Two-Piece Base Platewith Sub-Base

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Air Filtration

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Environment: The issues

Environmental conditions can lead to fouling and corrosion Viscous hydrocarbons from flares, exhausts cement dust, shot blast, iron oxides salt crystals cyclic wet/dry conditions etc.

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Air Filters Trade-Off

Cost,Size

Pressure Loss G

T Main

tenan

ce

Effectiveness

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Behavior of Airborne Salt with Changes in Relative Humidity

10 20 30 40 50 60 70 80 90 1000

D

R

O

P

L

E

T

D

I

A

M

E

T

E

R

R

E

L

A

T

I

O

N

S

H

I

P

SALT DROPLET SIZE RELATION WITH HUMIDITY

Low Transitional High

Solids Both Liquids

~

5

t

o

1

0

m

i

c

r

o

n

s

~ 0.5 to 2 microns

Filter has to deal with salt dissolved in water and salt particulates both in the airstream and in its surface!

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Fractional efficiency for filter elements

1ST-STAGE VANE SEPARATOR

DRAINAGE SYSTEM

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HIGH VELOCITY INLET SYSTEM MEDIUM VELOCITY INLET SYSTEM

Offshore Air Inlet Systems


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Fuel

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Hot Corrosion

A form of accelerated oxidation 1100 to 1750F temperature range: two types

Type I, High Temperature (1350 1750F ) Type II, Low Temperature (1020 1350F )

Na2SO4 commonly responsible Sodium intake is critical Potassium, vanadium, and lead

also contribute to hot corrosion

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Dealing with Contaminants in Gas Fuels

Scale, Rust, Slag, Dirt Clean and Passivate

Piping Use Proper Filtration

Fuel Filters and Coalescers

Condensibles, Oils, Water Use Coalescing Filtration Fuel Heating Fuel Analysis (up to C14!)

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Weight

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Offshore Concepts Gas Turbines and Electric Drives

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1Driven compressors not included (same for all scenarios). Weight for Generators (EMD Solutions) not included

Installed Weights and FootprintsDriver Systems for 10 MW Compressors

26 m2

40,000 kg

Electric Drive Constant Speed

41 m2

60,000 kg

Electric Drive Variable

Frequency

32 m2

60,000 kg

Electric Drive Variable-Speed

Gear

30 m2

55,000 kg

All Gas Turbine

Driver System

Footprint

Driver System Weight

System Option1

Driver System Weight and Footprint Impact Cost Gas Turbine and Variable Frequency Electric Drive Systems Comparable

Provided Full Electrical Equipment Scope Included in Analysis Constant Speed Option Compact, But Limits Operability, Increases Size of

Power Generation

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Questions?Questions?

offshore kurz solar

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