hst a ts m sp 0001_rev g01 specification for microturbine generator housing
DESCRIPTION
Spec for MTG HousingTRANSCRIPT
DES 1- F2 Rev1
Project : HST FULL FIELD DEVELOPMENT & HSD EARLY PRODUCTION SYSTEM DEVELOPMENT
Document Number
HST-0-TS-M-SP-0001
Rev Page
SPECIFICATION FOR HST MICROTURBINE GENERATOR HOUSING F01G01 1 of 21
Thang Long Joint Operating Company
HST FULL FIELD DEVELOPMENT & HSD EARLY PRODUCTION SYSTEM DEVELOPMENT
SPECIFICATION FOR HST MICROTURBINE GENERATOR HOUSING
Prepared By:
PetroVietnam Technical Services Corporation
This cover page is a total record of all the revisions of this document identified by number and title. Each of the pages that follow this cover page in this document records only the latest revision for that page.
This document has been prepared on behalf of and for the exclusive use of PTSC/TLJOC and is subject to and issue in accordance with the agreement between PTSC/TLJOC and MARINE ENGINEERING SERVICES PTE LTD (MESPL). MESPL accepts no liability or responsibility whatsoever for it in respect of any use of or reliance upon this document by any third party.
G01 18-Dec-13 NQ DDM/NDK THS ISSUED FOR USE
F01 1617-Dec-13 NQ DDM/NDK THS ISSUED FOR REVIEW
A01 04-Dec-13 NQ DDM/NDK THS ISSUED FOR IDC
REV DATE BYCHKD
MESPL’s APPV
PTSC M&C’s APPV
TLJOC’s APPV
DESCRIPTION
Project : HST FULL FIELD DEVELOPMENT & HSD EARLY PRODUCTION SYSTEM DEVELOPMENT
SPECIFICATION FOR HST MICROTURBINE GENERATOR HOUSING
RevF01G01
Page2 of 21
CONTENTS
1. INTRODUCTION ...................................................................................................................................... 3
1.1 PROJECT DESCRIPTION .................................................................................................................................. 3 1.2 SCOPE OF SPECIFICATION .............................................................................................................................. 4 1.3 DEFINITIONS ............................................................................................................................................... 4 1.4 ABBREVIATIONS ........................................................................................................................................... 5
2. CODES, STANDARDS AND REFERENCES ...................................................................................................7
2.1 REGULATORY REQUIREMENTS ........................................................................................................................ 7 2.2 CODES AND STANDARDS ............................................................................................................................... 7 2.3 PROJECT SPECIFICATIONS ............................................................................................................................... 7 2.4 ORDER OF PRECEDENCE ................................................................................................................................ 8
3. SCOPE OF WORK ..................................................................................................................................... 9
4. GENERAL REQUIREMENTS ..................................................................................................................... 11
4.1 OPERATION AND DESIGN LIFE ...................................................................................................................... 11 4.2 ENVIRONMENTAL CONDITIONS ..................................................................................................................... 11 4.3 UNITS OF MEASUREMENT ........................................................................................................................... 11 4.4 HAZARDOUS AREA RATING .......................................................................................................................... 11 4.5 TRANSPORTATION LOADS ............................................................................................................................ 11 4.6 WEIGHT CONTROL ..................................................................................................................................... 11 4.7 CERTIFYING AUTHORITY & THIRD PARTY CERTIFICATION ................................................................................... 12 4.8 GUARANTEE AND WARRANTY ...................................................................................................................... 12
5. TECHNICAL REQUIREMENT .................................................................................................................... 13
5.1 GENERAL .................................................................................................................................................. 13 5.2 STRUCTURAL ............................................................................................................................................. 14
5.2.1 General ..........................................................................................................................................145.2.2 Structural Base ..............................................................................................................................145.2.3 Framing .........................................................................................................................................145.2.4 Exterior Walls and Roof .................................................................................................................145.2.5 Lifting and Lifting Eyes ...................................................................................................................155.2.6 Welding .........................................................................................................................................15
5.3 CONSTRUCTION ......................................................................................................................................... 15 5.3.1 Thermal Insulation ........................................................................................................................155.3.2 Doors .............................................................................................................................................16
6. FABRICATION AND ERECTION ............................................................................................................... 17
7. INSPECTION AND TESTING & COMMUNICATION ...................................................................................17
8. PROTECTIVE COATINGS ......................................................................................................................... 17
APPENDIX 1 - EARTHING/GROUNDING BOSS DETAIL ................................................................................18
document.doc
Project : HST FULL FIELD DEVELOPMENT & HSD EARLY PRODUCTION SYSTEM DEVELOPMENT
SPECIFICATION FOR HST MICROTURBINE GENERATOR HOUSING
RevF01G01
Page3 of 21
Appendix 2 - Measurement Units 19
1. INTRODUCTION 3
1.1 Project Description 3
1.2 Scope of Specification 3
1.3 Definitions3
1.4 Abbreviations 3
2. CODES, STANDARDS AND REFERENCES 3
2.1 Regulatory Requirements 3
2.2 Codes and Standards 3
2.3 Project Specifications 3
2.4 Order of Precedence 3
3. SCOPE OF WORK3
4. GENERAL REQUIREMENTS 3
4.1 Operation and Design Life 3
4.2 Environmental Conditions 3
document.doc
Project : HST FULL FIELD DEVELOPMENT & HSD EARLY PRODUCTION SYSTEM DEVELOPMENT
SPECIFICATION FOR HST MICROTURBINE GENERATOR HOUSING
RevF01G01
Page4 of 21
4.3 Units of Measurement 3
4.4 Hazardous Area Rating 3
4.5 Transportation Loads 3
4.6 Weight Control 3
4.7 Certifying Authority & Third Party Certification 3
4.8 Guarantee and Warranty 3
5. TECHNICAL REQUIREMENT 3
5.1 General 3
5.2 Structural 3
5.2.1 General 3
5.2.2 Structural Base 3
5.2.3 Framing 3
5.2.4 Exterior Walls and Roof 3
5.2.5 Lifting and Lifting Eyes 3
5.2.6 Transportation Error! Bookmark not defined.
5.2.7 Welding 3
document.doc
Project : HST FULL FIELD DEVELOPMENT & HSD EARLY PRODUCTION SYSTEM DEVELOPMENT
SPECIFICATION FOR HST MICROTURBINE GENERATOR HOUSING
RevF01G01
Page5 of 21
5.3 Construction 3
5.3.1 Thermal Insulation 3
5.3.2 Doors 3
6. FABRICATION AND ERECTION 3
7. INSPECTION AND TESTING & COMMUNICATING 3
8. Protective Coatings 3
Appendix 1 - Earthing/Grounding Boss Detail 3
Appendix 2 - Measurement Units 3
INTRODUCTION
1.1 Project Description
Thang Long Joint Operating Company (TLJOC) was established by Petroleum Contract to operate
Block 15-2/01 offshore Vietnam in 2005. Block 15-2/01 geologically resides in the Cuu Long Basin, off
the south-eastern Vietnamese coastline in an area of 2,832 km2 and has an average water depth of
less than 50m. The fields are approximately 130 km east – southeast from Vung Tau city.
The Development is expected to consist of the following facilities:
A Well Head Platform (WHP) located at the HSD field
A Well Head Separation Platform (WHSP) located at the HST field
Tie-in to Hoang Long JOC’s Te Giac Trang (TGT) facilities
Interconnecting subsea pipelines
document.doc
Project : HST FULL FIELD DEVELOPMENT & HSD EARLY PRODUCTION SYSTEM DEVELOPMENT
SPECIFICATION FOR HST MICROTURBINE GENERATOR HOUSING
RevF01G01
Page6 of 21
Fluids from the HSD wellhead platform are sent to HST via subsea pipeline.
HST wellhead/separation platform is the hub for the TLJOC Block 15-2 development. All HSD and
HST fluids route via the HST platform. At HST the liquid and gas are separated for the purposes of
commercial allocation metering. Following metering, the liquid and gas are recombined and sent to the
TGT H1 platform. At TGT H1 the HST and HSD fluids are comingled with TGT H1 fluids and sent to
the TGT H1 FPSO for processing.
Lift gas and injection water are provided by the TGT FPSO to HSD and HST platforms.
1.2 Scope of Specification
This specification covers the minimum requirements for the design, material supply, fabrication,
inspection and testing, painting, documentation and shipment, offshore installation and performanace
testing of Microturbine Generator Housing for installation on HST Well Head Separation Platform as
part of HST Full Field Development & HSD Early System Development Project, Block 15-2/01,
offshore Vietnam.
The VENDOR shall ensure that all equipment and services supplied meet the requirements of this
Specification and of the codes, standards and specifications nominated herein, whether VENDOR
supplies the equipment or services directly or by SUB-VENDOR.
1.3 Definitions
document.doc
Project : HST FULL FIELD DEVELOPMENT & HSD EARLY PRODUCTION SYSTEM DEVELOPMENT
SPECIFICATION FOR HST MICROTURBINE GENERATOR HOUSING
RevF01G01
Page7 of 21
CERTIFYING AGENT A third-party agency appointed by the COMPANY or the PURCHASER to certify VENDOR compliance with all the requirements of the PURCHASE ORDER
COMPANY THANG LONG JOINT OPERATING COMPANY (TLJOC) or its successors or assignees who then will be the end user or owner of the FACILITIES
CONTRACTOR The contractor(s) appointed by the COMPANY for the Engineering, Procurement, Construction, Installation, Hook Up and Commissioning of the FACILITIES
FACILITIES All topsides and substructure facilities of HSD Well Head Platform , HST Well Head Separation Platform, and inter-field Pipelines owned by the COMPANY
MANUFACTURER The original manufacturer of the goods
PROJECT HST FULL FIELD DEVEOPMENT & HSD EARLY PRODUCTION SYSTEM DEVELOPMENT Project
PURCHASER The Buyer (the COMPANY or the CONTRACTOR) designated as such in the PURCHASE ORDER
PURCHASE ORDERor ORDER
The written request and signed agreement between the PURCHASER and VENDOR for the provision of the goods and/or services as described in the relevant Equipment/Material Specifications of the TECHNICAL REQUISITION PACKAGE
SOW The Scope of Work for the VENDOR
SUB-VENDOR Sub-Vendor or Sub-Contractor to the VENDOR
TECHNICAL REQUISITON PACKAGE (TRP)
The document sent with the Invitation To Bid (ITB) or with PURCHASE ORDER defining the detailed technical requirements of the goods or services required
VENDOR The Supplier of the goods and/or services described in the TECHNICAL REQUISITION PACKAGE. In certain situation the VENDOR can also be the Manufacturer of the goods
WORK All activities, works or services, to be performed and rendered by the VENDOR or SUB-VENDOR or as required or may be required by the PURCHASER for successful delivery of the goods or services per the specification of the PURCHASE ORDER
1.4 Abbreviations
AMCA Air Movement and Control Association International, Inc
AISC American Institute of Steel Construction
ANSI American National Standards Institute
ASCE American Society of Civil Engineers
ASME American Society of Mechanical Engineers
ASNT American Society for Non-Destructive Testing
document.doc
Project : HST FULL FIELD DEVELOPMENT & HSD EARLY PRODUCTION SYSTEM DEVELOPMENT
SPECIFICATION FOR HST MICROTURBINE GENERATOR HOUSING
RevF01G01
Page8 of 21
ASTM American Society for Testing and Materials
AWS American Welding Society
BOD Basis of Design
BS British Standard
BSI British Standards Institution
EN European Standards
HSD Hai Su Den
HST Hai Su Trang
ISO International Organization for Standardization
ITP Inspection and Test Plan
MAWP Maximum Allowable Working Pressure
MTG Microturbine Generator
NDT Non-Destructive Testing
NPS Nominal Pipe Size
NPT National Pipe Taper
PQR Procedure Qualification Record
PWHT Post Weld Heat Treatment
QA/QC Quality Assurance / Quality Control
RTJ Ring Type Joint
SDS Shutdown System
SI International System of Unit
SS Stainless Steel
TLJOC Thang Long Joint Operating Company
TRP Technical Requisition Package
WHP Well Head Platform
WHSP Well Head Separation Platform
WPS Welding Procedure Specification
WRC Welding Research Council
document.doc
Project : HST FULL FIELD DEVELOPMENT & HSD EARLY PRODUCTION SYSTEM DEVELOPMENT
SPECIFICATION FOR HST MICROTURBINE GENERATOR HOUSING
RevF01G01
Page9 of 21
2. CODES, STANDARDS AND REFERENCES
2.1 Regulatory Requirements
The equipment shall comply with the requirements of the latest versions of all relevant regulatory.
2.2 Codes and Standards
Equipment shall be designed, fabricated and tested in accordance with the latest edition of the
following international codes and standards including any addenda published for the edition listed.
AMCA 500-L-12 Laboratory Methods of Testing Louvers for Rating
AISC American Institute of Steel Construction, Specification for Structural Steel Buildings, Allowable Stress Design and Plastic Design
ANSI American National Standards Institute
API American Petroleum Institute
ASTM American Society for Testing and Materials
AWS American Welding Society
CSA Canadian Standards Association
IP Institute of Petroleum
BS EN 10204 Metallic Products – Types of Inspection Documents
2.3 Project Specifications
The following Project Specifications and Documents shall be read in conjunction with this specification.
C50671/5979/R3 Metocean Design Criteria Block 15-2/01 Offshore Vietnam
GEN-0-00-S-DB-1001 Structural Basis of Design
GEN-0-00-S-SP-0001 Structural Steel Material Specification
GEN-0-00-S-SP-0005 Specification for Structural Skid for Packaged Equipment
GEN-0-00-S-SP-0002 Welding Procedure and Performance Qualification
GEN-0-00-S-SP-0003 Welding & Fabricating Offshore Structures
GEN-A-TS-M-SP-0007 Specification for Microturbine Generator
GEN-A-TS-P-SP-0004 Insulation Specification
GEN-A-TS-P-SP-0007 Painting and Protective Coating Specification
GEN-A-GE-QA-PR-0002 General Quality Requirements Specification
GEN-A-GE-QA-PR-0003 Vendor Data Requirements Specification
GEN-A-GE-QA-PR-0004 Identification, Traceability and Certification Requirement Specification
GEN-A-GE-QA-PR-0005 Specification for Storage and Handling of Equipment and Materials
document.doc
Project : HST FULL FIELD DEVELOPMENT & HSD EARLY PRODUCTION SYSTEM DEVELOPMENT
SPECIFICATION FOR HST MICROTURBINE GENERATOR HOUSING
RevF01G01
Page10 of 21
HST-A-TS-V-DB-0001 Safety Basis of Design
2.4 Order of Precedence
The Project Datasheets, complete with the Project Drawings, Project Specifications and this
Specification, are considered the overall governing documents determining VENDOR’s Scope of
Supply and Requirement. In the event that there are conflicts with items or information contained
within these documents, the following order of precedence shall be used when interpreting the
information of PURCHASER provided documentation and references:
PURCHASE ORDER
Project Drawings (provided by PURCHASER)
This Specification
Project Specifications
Referenced Codes and Standards
Any discrepancies or conflicts among the documents listed above shall be called to the attention of
PURCHASER for resolution with PURCHASER prior to purchase, design or fabrication.
document.doc
Project : HST FULL FIELD DEVELOPMENT & HSD EARLY PRODUCTION SYSTEM DEVELOPMENT
SPECIFICATION FOR HST MICROTURBINE GENERATOR HOUSING
RevF01G01
Page11 of 21
3. SCOPE OF WORK
The VENDOR’s scope of work shall be in accordance with this document, datasheets and codes and standards specified therein. Any work not specifically mentioned but otherwise required as per statutory rules/ codes, standards/ specification and/or for the completion and operation have to be done by VENDOR.
The VENDOR shall submit full technical details of the package design, which meets the requirements, detailed herein. Aspects of the requirements, which cannot be met, shall be identified and the variances explained.
The requirements set out in the specification shall not be construed to eliminate consideration of the VENDOR’s standard design or off the shelf equipment. Company may accept the manufactures standard design, if found to be suitable for purpose and equivalent to the technical requirements of this specification.
The VENDOR shall provide any material, equipment and other accessory items, over and above that specified herein, which is required to provide a safe workable and efficient unit. The VENDOR shall have single point responsibility for all aspects of work, inclusive of components subcontracted or purchased from other Sub-Suppliers.
The VENDOR shall conduct offshore survey on HST Platform to verify preliminary engineering and before proceeding with the detail engineering for the housing.
VENDOR shall verify the MTG package dimensions for design of the housing, ensure adequate space for access to valves, instruments, components, etc. within the housing and adjacent for connection and interconnection and easy removal of equipment components and space for future expansion (if applicable).
VENDOR to carefully review HST equipment layout and 3D model to aware all obstruction, operation and maintenance area, safety respect for design, fabrication and installation.
The supply shall include but not be limited to:
Mechanical and structural design of the housing, including all attached components (doors, louvers, heat insulation, etc.)
Calculation and sizing for all louvers /and heat insulation to ensure normal operation of Microturbine Generator with consider all aspects of airflow, water ingress protection, temperature and pressure drop.
Development of shop drawings for fabrication and erection, including interfacing with PURCHASER’s design staff (on various aspects of Mechanical, Structural) and interpretation on developing shop fabrication drawings and documents.
Procurement of all the housing components including doors, louvers, etc., per approved design/drawings. This procurement by VENDOR shall include all the required welding consumables and related items like jigs/fixtures etc., to site-weld/assemble all the loose supplies.
document.doc
Project : HST FULL FIELD DEVELOPMENT & HSD EARLY PRODUCTION SYSTEM DEVELOPMENT
SPECIFICATION FOR HST MICROTURBINE GENERATOR HOUSING
RevF01G01
Page12 of 21
Shop fabrication, assembly, heat-treatment (where required), testing and certifications of all other shop fabricated components.
Weekly Pprogress reporting on all procurement, fabrication and erection activities.
Guarantee and warranty complete for the package and supplied items
Lifting lugs
Installation bolting set spare ( 10%) Start-up and commissioning spares (200% washers, 10% Boltings).
Surface preparation, painting, packing, freight, transport, boat sea fastening secure, delivery to site offshorevessel
Offshore installation
Testing & Commissioning
Guarantee and warranty complete for the package and supplied items
Supplier Documentation as specified in VDRL
All the identified certification and issue of certificate of conformance
Complete inspection, QA/QC and testing requirements including performance acceptance test
2 switcheable on/off lights. One at the front , the other at the rear of MTG.
Relocate F&G lamp and horn to outside of the housing
Provision of additional services as may be required as per RFQ
The VENDOR shall be responsible to submit, together with the Tender, a list of deviations or exceptions to this Specification. In the absence of any exceptions, it will be construed that the VENDOR fully complies with this Specification.
document.doc
Project : HST FULL FIELD DEVELOPMENT & HSD EARLY PRODUCTION SYSTEM DEVELOPMENT
SPECIFICATION FOR HST MICROTURBINE GENERATOR HOUSING
RevF01G01
Page13 of 21
4. GENERAL REQUIREMENTS
4.1 Operation and Design Life
The equipment shall be designed for minimum service life duration of 20 years.
4.2 Environmental Conditions
The equipment will be installed outdoor on HST WHSP, Block 15-2/01, offshore Vietnam. The
equipment shall be designed for the site conditions defined as below.
Ambient Temperature: 20.7 oC (minimum) to 34.2 oC (maximum)
Environment: Salt Laden Tropical Marine Environment99% relative humidity @ 30oC
Wind: 44 m/s at 10m above MSL (3-sec gust with return period of 100 years)
Seismic: Seismic Load shall not be considered.
4.3 Units of Measurement
In general, the International Systems of Unit (SI) will be used in all design, engineering documents and
drawings. Where standard equipment is supplied in Imperial units, the SI units shall be shown along
with Imperial units in brackets.
Preferred units are as per Appendix 2.
4.4 Hazardous Area Rating
The equipment shall be installed in hazardous area rating as specified on relevant Project Datasheets.
4.5 Transportation Loads
The finished housing will be transported by vessel, lifted up and installed on location of Microturbine
Generator on maindeck of HST platform. In order to accommodate this, the equipment shall be
designed to suit the following transportation loads, in addition to gravity:
Horizontal: 0.60g
Vertical: ±0.35g
If required, the VENDOR shall provide transportation supports for loading and transporting the
assembled and completed packages from VENDOR works by either road and/or sea.
4.6 Weight Control
The VENDOR shall exercise an active weight control system throughout the design and fabrication of
the equipment. The VENDOR shall submit an Equipment Weight Data with weight and centre of
gravity information.
document.doc
Project : HST FULL FIELD DEVELOPMENT & HSD EARLY PRODUCTION SYSTEM DEVELOPMENT
SPECIFICATION FOR HST MICROTURBINE GENERATOR HOUSING
RevF01G01
Page14 of 21
4.7 Certifying Authority & Third Party Certification
VENDOR shall appoint, subject to COMPANY/PURCHASER approval, an independent Third Party
Inspection Agent which is a member of IACS for complete design review and inspection of the
supplied packages. VENDOR shall obtain design approval and certification by such Agent for the
packages.
In addition, the CERTIFYING AGENT appointed by the COMPANY shall verify the compliance of the
Vendor Equipment Package with the project requirement through reviewing documents and drawings
submitted by VENDOR, including documentation of Third Party Certification service. VENDOR shall
ensure that all comments, observations made by the CERTIFYING AGENT are complied unless
otherwise agreed in writing by COMPANY/PURCHASER.
4.8 Guarantee and Warranty
The VENDOR shall have final responsibility for the design and performance of all equipment as
described in this specification.
The VENDOR shall comply with the provision of Guarantee and Warranty as stipulated in the Terms
and Conditions of PURCHASE ORDER and/or Contractual Documentation. Acceptance of Guarantee
and Warranty shall be indicated in the Tender.
document.doc
Project : HST FULL FIELD DEVELOPMENT & HSD EARLY PRODUCTION SYSTEM DEVELOPMENT
SPECIFICATION FOR HST MICROTURBINE GENERATOR HOUSING
RevF01G01
Page15 of 21
5. TECHNICAL REQUIREMENT
5.1 General
The housing is designed to cover the HST Microturbine Generator (01G-8101) to prevent it from direct
rain, ensure no water ingress to the air inlet ducting of Microturbine in order to make a stable operation
of the machine. The housing purpose also directly protects all components inside from external objects
and water during operation and maintenance.
All aspects of air flow requirements, wind direction, ingress protection, pressure drop, temperature,
heat emission, sun radiation heat, sound issue, etc. shall be considered and studied carefully for
designing a housing to comply with the above functions.
The following requirements for proper operation of MTG shall be met strictly with the installation of
housing over MTG.
- Air flow: min. 6200 24960 cfpm
- Temperature at Inlet Ducting: max. 50 40 oC
- Water ingress protection: prevent min. 95% water under 25m/s wind speed (or AMCA 500-L-
12 Class B)
- Pressure drop: TBA
All side walls shall be removable type panels so that they can be disassembled if high temperature
occurs inside the housing during the hottest months of the year.
Louvers shall be designed, fabricated by professional and well-known manufacturers, the louvers shall
be tested and certified as per AMCA 500-L-12 Class B.
Heat insulation shall be provided on panels and roof to prevent inside temperature of the housing
increasing due to sun radiation heat.
Hot work on platform shall be minimized and maybe just apply for base frame attachment.
The housing shall be designed with structural beam inside to support for engine removal.
The housing shall be factory assembled steel building. All loose supplied items shall be delivered
together with appropriate tools and assembly method.
The housing shall be designed such that easy removal of MTG package components for periodic
maintenance and complete MTG package change out..
document.doc
Project : HST FULL FIELD DEVELOPMENT & HSD EARLY PRODUCTION SYSTEM DEVELOPMENT
SPECIFICATION FOR HST MICROTURBINE GENERATOR HOUSING
RevF01G01
Page16 of 21
5.2 Structural
5.2.1 General
The Structural framing shall be designed in accordance with the Structural Basis of Design – GEN-0-00-S-DB-1001.
VENDOR will be provided with AFD drawings and calculations. Supplier will be required to take those to AFC status based on final equipment weight and sizes.
Unless otherwise specified, the housing shall be designed to provide a uniform loading of no less than 12 kPa to the underlying beams of the supporting structure. All structural steel materials shall be conformed to Structural Steel Material Specification – GEN-0-00-S-SP-0001.
5.2.2 Structural Base
Welding shall be sequenced to minimize distortion.
All exposed metal corners shall be trimmed round and ground smooth. Ends of all tubular structural members shall be covered with plate and seal-welded.
Any crack, gaps, and crevices that cannot be accessed for proper surface preparation and coating shall be sealed from the atmosphere by covering with plate and seal welding.
Floor plate shall be completely seal welded to all structural beams, support framing and stiffeners on the skid. Skip welding shall not be acceptable. A gentle gradient to be provided on the floor to allow liquid to collect at an accessible location.
5.2.3 Framing
Housing frames shall be constructed as a rigid, self-supporting steel structure welded to the skid base. Roof framing shall be designed to support any additional dead load suspended from the roof.
Opening in walls for doors, louvers and other purposes shall have structural frames and be fully sealed to the same ratings as walls.
The frame shall have beams designed to support for MTG engine removal.
The housing structural framing shall be designed in accordance with the requirements of the AISC Manual for Steel Construction – AISC-ASD 9th Edition. Documentation for this analysis shall be provided for COMPANY review and comment and shall bear the stamp of a Registered Profession Engineer
5.2.4 Exterior Walls and Roof
No opening or penetrations shall be allowed on the roof.
All closures in walls and roof shall form an incombustible, watertight seal around all penetrations. Walls and roof shall be designed to achieve the safe fire ratings.
For housing designed using the “stresses skin” approach, VENDOR shall demonstrate the method for simulating walls and roof to accurately represent the stiffness of these items. Calculations shall be prepared demonstrating that stresses in these items are within the permissible range for COMPANY review and comment.
Gutters provided on all side on the roof, and drain pipe extended onto the top of deck
document.doc
Project : HST FULL FIELD DEVELOPMENT & HSD EARLY PRODUCTION SYSTEM DEVELOPMENT
SPECIFICATION FOR HST MICROTURBINE GENERATOR HOUSING
RevF01G01
Page17 of 21
5.2.5 Lifting and Lifting Eyes
The housing shall be designed for single point lifting. There shall be no permanent distortion of any housing components as result of the lifting operation.
All lifting eyes and their points of attachment shall be designed in accordance with API RP2A. Scope of supply shall include spreader bar (if required), sling and shackle. Lifting eyes capacity to be permanent engraved on the side for reference.
Lifting eye plates and welds shall be ultrasonically tested. Material type of lifting eyes shall be high strength material (min-yield strength 345 MPa) with through thickness properties.
Lifting arrangement, design, and drawings, including material takeoff, centre of gravity calculation, designation of spreader bar (if required), sling and shackle, shall be reviewed and commented upon by COMPANY. Special note to be reviewed to ensure maximum distance between lifting gears and load will not be obstruction when moving load.
The centre of gravity location and weight shall be verified by weighing the competed unit.
The lifting points shall be at the main steel.
Lift eyes to be suitably welded for all side walls with removable type panels so that they can be disassembled if high temperature occurs inside the housing during the hottest months of the year
Vendor shall site survey to ensure the lifting capacity of platform crane in term of load, radius and head.
5.2.6 Welding
All structural welds shall be continuous and full penetration for joints between members.
Structural welding shall be performed in accordance with AWS D1.1 (latest edition) Welding Procedure & Performance Qualification – GEN-0-00-SP-0002 and Welding and Fabrication Offshore Specification – GEN-0-00-S-SP-0003.
Only automatic submerged arc (SAW), manual shielded metal arc (SMAW) and gas-shielded flux core arc (GFCAWW) welding processes shall be used.
5.3 Construction
5.3.1 Thermal Insulation
Thermal insulation shall be applied to MTG housing envelope; walls and roof shall be insulated to prevent heat from coming into the housing.
Aluminum foil vapour barrier shall be factory laminated onto the exposed face of any insulation. The vapour barrier shall be 30 micron thick, comprising 2 layers of vapour barrier compound with scrim cloth in between. In addition the insulation under the housing shall be installed with a stainless steel wire netting.
document.doc
Project : HST FULL FIELD DEVELOPMENT & HSD EARLY PRODUCTION SYSTEM DEVELOPMENT
SPECIFICATION FOR HST MICROTURBINE GENERATOR HOUSING
RevF01G01
Page18 of 21
5.3.2 Doors
All hinged door shall open outwards in the normal direction of escape. Open door shall not obstruct escape routes; otherwise exit doors shall be recessed. In case of limited space constraint, sliding doors shall be used. Escape door shall be designed for easy opening from either side.
Rain Shields shall be provided over all exterior doors.
Inspection window to be provided.
6. FABRICATION AND ERECTION
No fabrication shall begin until the PURCHASER has reviewed the VENDOR’s detail shop drawings
and given written notice to proceed.
Fabrication shall be in accordance with the specified design code and approved design drawings. Any
proposed modifications subsequent to this review must be submitted to the COMPANY for agreement
before implementation.
7. INSPECTION AND TESTING & COMMUNICATION
VENDOR shall provide necessary test to ensure operating and function of housing.
Vendor shall submit their Inspection & Test Plan for purchaser’s approval. VENDOR shall also provide
all documents and perform mechanical completion inspection for all installation.
8. PROTECTIVE COATINGS
Protective coatings shall be provided in accordance with “Painting and Protective Coating
Specification”, GEN-A-TS-P-SP-0007, unless otherwise specified.
document.doc
Project : HST FULL FIELD DEVELOPMENT & HSD EARLY PRODUCTION SYSTEM DEVELOPMENT
SPECIFICATION FOR HST MICROTURBINE GENERATOR HOUSING
RevF01G01
Page19 of 21
APPENDIX 1 - EARTHING/GROUNDING BOSS DETAIL
document.doc
12
12
12
Equipment Support/Skirt/Saddle
Project : HST FULL FIELD DEVELOPMENT & HSD EARLY PRODUCTION SYSTEM DEVELOPMENT
SPECIFICATION FOR HST MICROTURBINE GENERATOR HOUSING
RevF01G01
Page20 of 21
APPENDIX 2 - MEASUREMENT UNITS
Quality of Dimension Unit Designation
Area metre square m2
Corrosion Allowance millimetres mm
Density kilogramme per cubic metre kg/m3
Electric Current milli-amp, amp mA, A
Electric Potential Volt, kilovolt V, kV
Electric Power Watt, kilowatt, megawatt W, kW, MW
Electric Resistance ohm Ω
Enthalpy & Head (gas) kilo joule per kilogramme kJ/kg
Force Newton (1000's) kN
Frequency hertz Hz
Head metres m
Heat (liquid) Watts, kilowatts W, kW
Heat Flux Radiation Kilowatts per square metre kW/ m2
Heat Transfer Coefficientwatts per square metre degree Celsius
w/m2 0C
Illuminance Lux lx
Latent Heat kilo joules per kilogramme kJ/kg
Lengthmillimetres, metres, kilometres
mm, m, km
Mass kilogrammes kg
Mass Flow Rate kilogrammes/hour kg/hr
Molar Flow Rate kilogramme moles/hour kgmol/hr
Mechanical Power kilowatt, Megawatt kW, MW
Pressure kilopascal gauge kPag
Pressure kilopascal absolute kPa
Rotational Speed revolutions per minute rpm
Sound pressure Level Decibel (A weighting) dB(A)
Specific Heatkilojoules per kilogramme Kelvin
kJ/kgK
Stress Newton per square millimetre N/mm2
document.doc
Project : HST FULL FIELD DEVELOPMENT & HSD EARLY PRODUCTION SYSTEM DEVELOPMENT
SPECIFICATION FOR HST MICROTURBINE GENERATOR HOUSING
RevF01G01
Page21 of 21
Quality of Dimension Unit Designation
Temperature degree Celsius oC
Thermal Conductivity watt per metre Kelvin W/m.K
Time day, hour, minute, second d, hr, min, s
Velocity metres per second m/s
Vessel Dimensions metres, millimetres m (mm)
Volume (actual) cubic metres m3
Volume Flow (actual) actual cubic metres/hr m3/hr
Volume Flow (liquids) cubic metres/hour m3/hr
Weight kilogrammes, metric tonnes kg, tonne
Wobbe Index or Calorific valueMillion British thermal units/standard cubic feet
MMBtu/scf
Wobbe Index or Calorific valueMegajoules per standard cubic metre
MJ/Sm3
Standard Gas Volume Million standard cubic feet MMscf
Volume Flow (standard gas)Million standard cubic feet/day
MMscfd
Volume (production liquid) Barrels bbl
Volume Flow (production liquid) Barrels per day bpd
Volume Flow (production liquid) Thousand barrels per day Mbpd
Pipe/Nozzle sizes Millimetres, inches mm, in
Pipeline (nominal) Millimetres, inches mm, in
Viscosity - Dynamic centipoise cP
- Kinematic centistoke cSt
document.doc