Offshore Kurz Solar

April 6, 2017 | Author: stuntmanz | Category: N/A
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Packaging Turbomachines for Offshore Applications Rainer Kurz Solar Turbines Incorporated, Klaus Brun Southwest Research Institute, Marybeth Nored Apache Corp

Gas Electric Partnership 2013

1 © 2013 Solar Turbines Incorporated

Scope • • • • • •

Turbomachinery in Offshore Applications Certification Movement and Deflection Air Fuel Weight

2 © 2013 Solar Turbines Incorporated

Offshore Applications Mechanical Drive

Generator Set

Multi Body Compressor Set © 2013 Solar Turbines Incorporated

3

Gas Turbine Installation on an FPSO • Power Generation • Mechanical Drive

5 © 2013 Solar Turbines Incorporated

Certification

6 © 2013 Solar Turbines Incorporated

Certification and Compliance

Classification of Floating Offshore Installations, Fixed Location – FPSO / FPU, TLP, SPAR, CTs Steel Ship’s Rules for Building and Classing – FPSOs Facilities Offshore Guide –Fixed Leg Platforms

7 © 2013 Solar Turbines Incorporated

Hazardous Locations

Risk

Not Classified

Division 1 Zone 1

Division 2 Zone 2

1 Hr./Yr.

10 Hrs./Yr.

1000 Hrs./Yr.

Zone 0

Duration of time Gas is Present © 2013 Solar Turbines Incorporated

9

Movements and Deflection

10 © 2013 Solar Turbines Incorporated

Movements

11 © 2013 Solar Turbines Incorporated

Fluid Management

Evaluate L/O Tanks for Pitch & Roll using CFD

• Bearing Scavenge Systems • Package Scavenging • Separate Lube Oil Tank • Lube Oil Tank Baffles

12

SIDE VIEW © 2013 Solar Turbines Incorporated

TOP VIEW

Moderate Package Scavenge System

PACKAGE SCAVENGE OIL TANK

Lube Oil Tank and Drain © 2013 Solar Turbines Incorporated

Vent System

Lube Oil Supply System

13

Installation Orientation OIL CAN’T DRAIN TO TANK

ROLL ANGLE

ROLL ANGLE

OIL CAN DRAIN TO TANK

OIL CAN DRAIN TO TANK

Perpendicular Orientation

14 Parallel Orientation © 2013 Solar Turbines Incorporated

Deck Deflections

15 © 2013 Solar Turbines Incorporated

Base Plate Mounting

Anti-Vibration Mount (AVM) Method

STAINLESS STEEL VIBRATION ISOLATORS © 2013 Solar Turbines Incorporated

PACKAGE MOUNTING SURFACE

Gimbal Mount Method

SPHERICAL BEARING DECK MOUNTING SURFACE

16 TTS105-001

3-Point Mount Base Plates

Single-Piece Base Plate

Two-Piece Base Plate

Two-Piece Base Plate with Sub-Base 17 © 2013 Solar Turbines Incorporated

TTS1 0

Air Filtration

18 © 2013 Solar Turbines Incorporated

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.

19 © 2013 Solar Turbines Incorporated

Air Filters Trade-Off

Effectiveness

e iz ss o t,S L os re C su es Pr

© 2013 Solar Turbines Incorporated

T G

M

e c n a n e t n i a 20

~ 5 to 10 microns

Behavior of Airborne Salt with Changes in Relative Humidity

DROPLET DIAMETER RELATIONSHIP

SALT DROPLET SIZE RELATION WITH HUMIDITY

0

10

20

30

Low

Solids

40

50

60

Transitional

Both

70

80

90 100

~ 0.5 to 2 microns

High

Liquids

Filter has to deal with salt dissolved in water and salt particulates both in the airstream and in its surface! © 2013 Solar Turbines Incorporated

22

Fractional efficiency for filter elements

1ST-STAGE VANE SEPARATOR

DRAINAGE SYSTEM

23 © 2013 Solar Turbines Incorporated

Offshore Air Inlet Systems

HIGH VELOCITY INLET SYSTEM

© 2010 Solar Turbines Incorporated

© 2013 Solar Turbines Incorporated

MEDIUM VELOCITY INLET SYSTEM 24

Fuel

25 © 2013 Solar Turbines Incorporated

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

26 © 2013 Solar Turbines Incorporated

Dealing with Contaminants in Gas Fuels

• Scale, Rust, Slag, Dirt – Clean and Passivate Piping – Use Proper Filtration • Condensibles, Oils, Water – Use Coalescing Filtration – Fuel Heating – Fuel Analysis (up to C14!)

Fuel Filters and Coalescers

28 © 2013 Solar Turbines Incorporated

Weight

29 © 2013 Solar Turbines Incorporated

Offshore Concepts Gas Turbines and Electric Drives

30 © 2013 Solar Turbines Incorporated

Installed Weights and Footprints Driver Systems for 10 MW Compressors

All Gas Turbine

Electric Drive – Variable Frequency

Electric Drive – Variable-Speed Gear

Electric Drive – Constant Speed

Driver System Weight

55,000 kg

60,000 kg

60,000 kg

40,000 kg

Driver System Footprint

30 m2

41 m2

32 m2

26 m2

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 1Driven

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

31 © 2013 Solar Turbines Incorporated

Questions?

32 © 2013 Solar Turbines Incorporated

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