LPG Propulsion
LPG Propulsion

A World First in LPG Propulsion

Ensuring Environmental Sustainability

On 30 August 2018, we inked contracts for the delivery and retrofitting of four LPG-propelled dual-fuel engines in our fleet, making us the global pioneer in LPG propulsion. Through next-generation, high-tech green ships, LPG propulsion embraces a low-carbon future and positions us to seize “green wave” business opportunities, while generating positive change for the environment.

At the same time, the move places us ahead of the global 0.5% fuel sulphur content cap instituted by the International Maritime Organisation (IMO), which will be enforced from 2020.BW LPG’s conversion to LPG-propelled, dual-fuel engines represents a life-cycle upgrade and a long-term commitment.

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Building Business Sustainability

Increase in Efficiencies
With LPG as a marine fuel, output efficiencies will rise by around 11% against compliant fuels, which will in turn generate notable gains in total voyage fuel economics. This, along with other advantages, secures LPG’s position as a long-term sustainable marine fuel.
Lower Price Sensitivity, Higher Cost Efficiency 
Cost-wise, LPG is also a better option than heavy fuel oil, with high life-time savings prospects. By leveraging LPG as a marine fuel, BW LPG benefits from savings due to lower fuel consumption and full dual-fuel flexibility, which guards against price sensitivity to post-2020 fuel prices, thereby future-proofing the company.
More Reliable, Fully FLexible and Cleaner Alternative with Dual-Fuel Engines
Harnessing LPG propulsion translates into cleaner, more efficient engines that are cheaper to maintain. In addition, the fuel flexibility of dual-fuel engines ensures full redundancy for uninterrupted operations.

 

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Time to act on IMO 2020 - three available options

 Dual Fuel/LPG
•Approved technology
•Worldwide availability
•Clean and efficient
•Addresses IMO sulphur regulations
•Competitive price for LPG as fuel
Compliant Fuel/MGO
•No capex investment
•Level playing field for all
•Majority of the VLGC fleet by 2020
•Price and specification uncertainty

 
Scrubbers/HFO
•Short term solution & compliance concern
•Limited allowance for use within port limits
•High maintenance cost
•Waste & chemical management
•Increased consumption
•HFO price & availability
 BW LPG-LPG Propulsion-dual-fuel

 Compliant Fuel-MGO Scrubbers-HFO



Cost Efficient Today and Tomorrow

cost efficient-LPG Propulsion

Operational and performance impact

LPG fuel performance
  • ME-LGIP engine will consume LPG as main fuel and HFO or compliant fuel as pilot oil
  • Possible to run on any LPG/fuel mix, while complying with the emission regulations
  • LPG as fuel addresses IMO sulphur regulation forever
  • PG is more efficient ~11% improvement in consumption
Bunkering
  • Bunkering directly at load terminal or,
  • Ship-to-ship from smaller LPG carriers ~ 500 vessels in service
  • Elimination of bunker quality issues and spill risks
  • Cleaner and easier to maintain and handle
  • More Reliable, Fully FLexible and Cleaner Alternative with Dual-Furl Engines
  • Harnessing LPG propulsion translates into cleaner, more efficient engines that are cheaper to maintain. In addition, the fuel flexibility of dual-fuel engines ensures full redundancy for uninterrupted operations.
LPG fuel transfer and deck tank flexibility 
  • Deck tanks are connected to the cargo system
  • Possibility to send condensate to deck tanks
  • Deck tanks can be used as cargo tanks
  • Possibility of additional cargo
  • Can be used for grade change

Technical solution designed to minimize cost and exposure

86,000 m3

cargo tanks + deck tanks

1,800 m3 deck tanks

flexibility on fuel choice
additional cargo

99% filling ratio

combination of deck tanks 
49,370 mt carrying capacity

DNV-GL Approved

IGC code compliant
HAZID completed

C3/C4 /LPG Mix

MDO/Compliant fuel

fuel flexibility

Bunkering flexibility

In port or ship-to-ship
no deviation -
increase utilisation

ECO speed/cons

16 knots / ~36.5 MT/day

100% VLGC

ports compatible

draft will not be an issue