Turbomachinery Package Specification

Titan 250 Generator Set

 

 

15.1.7Certification

Certification is typically required to demonstrate offshore turbomachinery compliance with applicable rules for a fixed or mobile offshore installation. Solar can provide the necessary certification or assist the customer in obtaining certification. Involvement of one of the following certifying authorities is usually required:

•Det Norske Veritas (DNV)

•Bureau Veritas (BV)

•Lloyd’s Register (LR)

•American Bureau of Shipping (ABS)

15.1.8Deck Deflection Limits

The package supporting deck structure must have sufficient stiffness to maintain alignment of the turbine and driven equipment under dynamic vessel motion. Table 13, lists the maximum allowable deflections measured between the furthest mounting points. With analysis, these limits may be extended through the use of gimbals or AVMs.

15.1.9Angular Displacement and Acceleration

Table 15, Marinization Specifications, lists the maximum allowable angular displacement and acceleration limits for marine applications. The Basic Duty category is met by the standard package without any additional modification. Moderate Duty and Severe Duty categories require modification.

15.1.10Main and Auxiliary Service

The information provided in this section does not apply to equipment used in “Main and Auxiliary Service”. If equipment is intended for this type of service, please contact Solar Turbines Incorporated for guidance to ensure the correct application and certification requirements are met.

Table 13. Marinization Specifications

Supporting Deck Deflection Limits

 

Hogging and Sagging

 

0.3833 mm/m (0.0046 in/ft)

 

 

 

Deck Twist

 

 

0.0198°/m (0.006°/ft)

 

 

 

Angular Displacement and Acceleration Limits

 

 

 

 

 

 

 

Basic Duty

Moderate

Severe Duty

 

 

 

Duty

Parallel

Perpendicular

 

 

 

 

 

Maximum Permissible Angular Displacements

 

 

 

 

 

Dynamic:

Pitch / Period

2° / 13 sec

7.5° / 9 sec

10° / 9 sec

7.5° / 9 sec

 

Roll / Period

2° / 13 sec

7.5° / 13 sec

22.5° / 13 sec

10° / 13 sec

 

 

 

Static:

Trim

2°

5°

5°

5°

 

 

List

2°

5°

15°

5°

 

 

 

 

 

Maximum Permissible Accelerations

 

 

 

 

 

Operating:

 

± 0.1 g

± 0.5 g

± 1.0 g

± 1.0 g

 

Survival:

 

± 0.5 g

± 1.0 g

± 1.5 g

± 1.5 g

© 2008 Solar Turbines Incorporated. All rights reserved.

TPS250GS/908 - Preliminary

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