HA Gas Turbine Enclosure
The new HA Gas Turbine enclosure improves upon its previous design by incorporating a module-based structure, enabling quicker and easier installation and maintenance.
Architecture Driven By Performance
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INTRODUCTION
Less is More Simpler = Faster Plug + Play
Reduced Installation
Time & Cost
less skill needed in the trades
*compared to 7F gas turbine
Improved Maintainability
greater equipment accessibility affords simpler, faster serviceability
Upper Enclosure(Service Platform)
Upper Enclosure(Service Platform)
Air Extraction Module
Air Extraction Module
Fuel Control Module
GT Drains Module
Lower Air Extraction Module
Simplified Modular Architecture
Makes Assembly a Snap
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Reduced Lay Down Space
No Scaffolding Required
Optimized Workflow + Safety
Faster to First Fire
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7
8-16
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HA modularity significantly reduces required lay down space and logistics time needed to locate and transport field installed piping and valves
HA Enclosure modules and valves
installed in approximately 7 weeks
Segregated work zones allow for:
- simultaneous installation of electrical, piping & mechanical
- fewer delays due to interfering tasks
- reduced safety concerns
First Fire ready in 10,000 fewer hours
*compared to 7F enclosure
Assembly Comparison
HA Enclosure
F Enclosure
80% Larger Enclosurecompared to 7F gas turbine
KEY POINTS
80% Larger Enclosure
7HA ENCLOSURE VOLUME
27,100 [ft³]
7F ENCLOSURE VOLUME
13,800 [ft³]
Greater Serviceability
KEY POINTS
Greater Serviceability
3-panel roof system engineered for maintenance outages
major inspection (front)
major inspection (front)
combustion inspection (middle)
hot gas path inspection (rear)
Simplified Accessibility
KEY POINTS
Simplified Accessibility
sloped inlet allows for lower crane and building height
rotor-removal clearance
single ventilation extraction (no removal required)
98%
REDUCTION IN FIELD-INSTALLED VALVES
KEY POINTS
Reduction in Field-Installed Valves
only safety shut-off valve (SSOV) remains
54%
REDUCTION IN TURBINE FIELD WELDS
KEY POINTS
Greatly Simplified Liquid Fuel Piping
- piping eliminated as part of the new high-pressure system
- 32 quick-release flanges
- modularized manifold into upper and lower sections
- no threaded tubing connections
50494847464544434241%
REDUCTION IN ELECTRICAL TERMINATIONS REDUCTION IN PIPING SYSTEM INTERFACES
Fuel Control Module
MODULES
Fuel Control Module
gas fuel control valves
integrated non-slip walkways
liquid fuel control valves
valve removal trolleylift and relocate all valves to front
of double doors for easy removal
GT Drains Module
MODULES
GT Drains Module
explore valve details
explore simplified interface points
water wash drain valves
removable grating and sill for roll-in
access through double doors
false start drain valves
water wash supply control valves
all drain piping within GT enclosure engineered and provided by GE
Air Extraction Modules
MODULES
Air Extraction Modules
explore module details
stage 2 nozzle cooling valve
inlet bleed heat valve
cooling and sealing air piping
inlet bleed heat piping
stage 3 nozzle cooling valve
integrated walkway for maintenance access
stage 2 integrated cooling valve
handrails
Left Module
Right Module
Lower Air Extraction Module
MODULES
Lower Air Extraction Module
jack standintegrated into piping support,
remains fixed during maintenance
compartment space heaters
purge air coolercomplete with relief valve & piping
water wash drain piping
Upper Enclosure Modules
MODULES
Upper Enclosure Modules
ladders & handrails incorporated into modules
deck height set below turbine centerline allowing for easy bolt access
maintenance access points for pneumatic hoses and power cords
removable grating & bracing
HA Gas Turbine Enclosure
HA Gas Turbine Enclosure
Architecture Driven by Performance
* all comparisons based on 7F.03 Gas Turbine
