Wärtsilä Cargo Handling System for Fully Refrigerated Gas Carriers

Wärtsilä Gas Solutions has long been the preferred cargo handling system supplier for many of the leading owners of fully refrigerated gas carriers. When transported in these ships, the LPG is normally kept at its coldest temperature (atmospheric pressure) and the required equipment needs to be extremely reliable.

Our innovative and energy efficient solutions, together with the broadest portfolio of reliquefaction configurations, has given Wärtsilä a leading position in this market. This extensive offering is supported by Wärtsilä’s unmatched global service network.

    Technical info

    An improved process for high Ethane

    • The new Wärtsilä reliquefaction process with an increased pressure design enables the handling of lighter cargoes, such as propane with a high ethane content of up to 8-9%, which is common with shale gas processing plants
    • The new design features two intercoolers with a ​flash-in-series ​arrangement to provide ultimate plant performance
    • With full condensing against seawater for even lighter cargoes, there is no need for complicated vent gas cooling systems
    • No vent gas cooling means high performance throughout the entire cargo range

    WGS 3-compressor solution performance; 36°C seawater temperature

    3K160-3L   Base Case 
         2,5% Ethane 5,0% Ethane  8,0% Ethane 
     Suction pressure kPa  100 140 100 140 100 140
     Ref. capacity kW 312 439 295 417 278 396
     Shaft Power kW 269 326 288 350 306 372
     C.O.P.   1.161 1.346 1.024 1.194 0.910 1.064
    Figure
    (Click the image to enlarge it)
    Applications – examples
    Please find below our latest applications for Wärtsilä Cargo Handling for Fully Refrigerated Gas Carriers.
     Ship owner Tank m³ Tank type Year built Shipbuilders Number delivered Type of cargo
    CMM, Consolidated Marine Mng. 84 000
    1,25ata
    4 pr
    -50°C
    2015 Hyundai Heavy Industr. 3 Multipurpose LPG
    CMM, Consolidated Marine Mng. 84 000
    1,25ata
    4 pr
    -50°C
    2015 Hyundai Heavy Industr. 3 Multipurpose LPG
    CMM, Consolidated Marine Mng. 84 000
    1,25ata
    4 pr
    -50°C
    2015 Hyundai Heavy Industr. 3 Multipurpose LPG
    CMM, Consolidated Marine Mng. 84 000
    1,25ata
    4 pr
    -50°C
    2015 Hyundai Heavy Industr. 3 Multipurpose LPG
    Transpetrol 84 000
    1,25ata
    4 pr
    -50°C
    2015 Hyundai Heavy Industr. 2(+1) Multipurpose LPG
    Aurora 84 000
    1,25ata
    4 pr
    -50°C
    2015 Hyundai Heavy Industr. 3 Multipurpose LPG
    Aurora 84 000
    1,25ata
    4 pr
    -50°C
    2016 Hyundai Heavy Industr. 3 Multipurpose LPG
    Aurora 84 000
    1,25ata
    4 pr
    -50°C
    2016 Hyundai Heavy Industr. 3 Multipurpose LPG
    Aurora 84 000
    1,25ata
    4 pr
    -50°C
    2016 Hyundai Heavy Industr. 3 Multipurpose LPG
    Aurora 84 000
    1,25ata
    4 pr
    -50°C
    2016 Hyundai Heavy Industr. 3 Multipurpose LPG
    Aurora 84 000
    1,25ata
    4 pr
    -50°C
    2016 Hyundai Heavy Industr. 3 Multipurpose LPG
    KSS (Korean Special Shipping) 84 000
    1,25ata
    4 pr
    -50°C
    2017 Hyundai Heavy Industr. 4 Multipurpose LPG
    Transpetrol 84 000
    1,25ata
    4 pr
    -50°C
    2017 Hyundai Heavy Industr. 2(+1) Multipurpose LPG
    Exmar n.v. 38 000
    1,25ata
    3 pr
    -50°C
    2017 Hanjin Heavy I & Const. HHIC 3 Multipurpose LPG & Ammonia
    Exmar n.v. 38 000
    1,25ata
    3 pr
    -50°C
    2017 Hanjin Heavy I & Const.HHIC 3 Multipurpose LPG & Ammonia
    Exmar n.v. 38 000
    1,25ata
    3 pr
    -50°C
    2018 Hanjin Heavy I & Const. 3 Multipurpose LPG & Ammonia
    Exmar n.v. 38 000
    1,25ata
    3 pr
    -50°C
    2018 Hanjin Heavy I & Const. 3 Multipurpose LPG & Ammonia
    Stealth Gas 22 000
    6,3ata
    4 bi-lo
    -50°C
    2016 Hyundai Mipo Docky. 3 Multipurpose LPG & Ammonia
    Stealth Gas 22 000
    6,3ata
    4 bi-lo
    -50°C
    2016 Hyundai Mipo Docky. 3 Multipurpose LPG & Ammonia
    Stealth Gas 22 000
    6,3ata
    4 bi-lo
    -50°C
    2017 Hyundai Mipo Docky. 3 Multipurpose LPG & Ammonia

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