LNG Retrofit specialists

— Fuel Gas Supply System Installation Design
— Regulatory Hazardous Area Compliance
— Specialized Equipment Selection

Emissions Compliance

LNG Conversions for LNG-ready vessels / Complete re-engine for LNG conversion/retrofit

Advanced Technology

·       LNG retrofits are far more complex than retrofits owners may have experienced in the past such as scrubbers or BWTS.

·       Specialized equipment not common to most commercial vessels such as cryogenic equipment, high-pressure pumps, BOG compressors, re-liquefiers, double wall ventilated fuel gas pipes, complex control, and monitoring systems, nitrogen generators, and gas detectors.

·       Special consideration of materials.  Thermal stress analysis is required on structure and pipes.

·       USCG requires IECEx certification for electrical equipment installed in hazardous areas, limits vendor and equipment options, and requires special consideration when ordering equipment.

Ship Design

·       Careful consideration of tank type, size, and location to optimize the ship’s cargo capacity, range, safety, and operation.

· Arrangements and hazardous zone plans are critical to getting it right early in the project.  Requires experience with USCG interpretation of the rules, regulations, and policy letters for US flag vessels.

·       Some equipment is restricted in its location due to regulations or the equipment maker’s requirements.  Knowing these restrictions ahead of time is critical to ensuring an acceptable arrangement.

·       Strength and stability need to be analyzed.

·       Other limitations such as foreign steel weight limits need to be considered.

·       Bunkering arrangements, ventilation opening locations, gas vent locations, etc. all need careful consideration to ensure compatibility with the ship’s cargo operations.

·       Other changes such as reduction in fuel oil storage capacity, changes to the vessel’s equipment number, changes to the electric load analysis, etc. all require thorough engineering.

Engineering Services (Support the owner from initial feasibility analysis to shipyard contract (and beyond)

·       Feasibility study to determine if it is feasible to retrofit the vessel to LNG and to help the owner determine if it makes sense financially.

·       Evaluation of engine replacement (if necessary) and assistance with the selection of a new engine.

·       Concept design

·       Fuel gas supply system RFQ specification

·       Auxiliary equipment selection and sizing calculations, equipment RFQ specifications

·       Shipyard RFQ specification

·       Contract design level drawings for all auxiliary equipment outside of FGSS supplier’s scope

·       Piping, ventilation, electrical, structural, etc.

·       Class submittals and approvals

·       Assist Class with USCG submittals and approvals

·       Stability test

·       Can offer shipyard site supervision