Cruise Ships
Laby® Compressors for LNG BOG Management for Four-Stroke Engines on Cruise Ships
With regard to the efforts made to reduce the global carbon footprint, cruise ship passengers are increasingly requesting low-emission cruise voyages. In addition, upcoming IMO regulations will cut the sulfur content of marine diesel to 0.5% by the year 2020. LNG is the preferred alternative fuel for new cruise ships. Occurring boil-off gas (BOG) must be managed to protect the structural integrity of the onboard gas tanks.
Burckhardt Compression offers a variety of compressor solutions for BOG handling that have been specifically designed for marine applications. Our oil-free Laby® Compressors can compress the BOG for injection into auxiliary gen-sets.
Customer Benefits
- Gas-tight crankcase for greater safety and zero gas loss
- Cryogenic operation without BOG pre-warming
- Low power consumption leads to minimized
operational costs (OPEX) - Low maintenance costs due to labyrinth sealing
technology - Low system complexity for easy integration
- Vibration dampeners specifically designed to
minimize compressor vibrations - Ship’s crew can perform onboard maintenance
- Simple parallel operation with pump vaporizer
- Full range of after-sales services available
Design Features
- Robust design compliant with marine standards
- Contactless oil-free gas compression
- Unique wear-free labyrinth piston sealing technology
- Directly driven by an electric motor
- Water-cooled cylinders and gas coolers
- Integrated crankshaft-driven lube oil system
- Compliant with IMO, IGF and IGC codes
Contactless Labyrinth Sealing
Technical Data
| Type | Max. Speed rpm* |
Rated Power kW / hp |
Max. Volume Flow m3/h** / scfm** |
Min. Gas Temperature °C / °F |
| 2KL90 | 880 | 101 / 135 | 400 / 20 | -140 / -220 |
| 2KL140 | 580 | 242 / 325 | 1’200 / 60 | -140 / -220 |
*60 Hz supply frequency **Depending on gas composition, gas temperature and compressor suction pressure