DNV AiP for dual fuel LPG carriers

HMD has developed the basic ship design alongside WinGD who has provided detailed engine specifications and operational data for the 45,000m³ carriers. The designs are based around a new 10,000 horsepower dual-fuel two-stroke engine that uses either ammonia or marine diesel oil.

“The new dual fuel propulsion system will set a new standard in emissions reduction – emitting no CO2 during combustion,” said Lee Dong Jin, head of HMD’s Basic Design Division.

“In addition, the ‘ammonia leak prevention system’ completely blocks external leakage of ammonia. This highlights HMD’s all-out effort to lead the industry in the eco-friendly ship sector.”

Ammonia is gaining traction as a potential zero-carbon fuel, especially when produced from renewably sourced hydrogen to create what is known as ‘green’ ammonia.

It can be stored in a pressurised tank (about 10 bar) or a low-temperature tank (-34℃) without cryogenic technology. Plus the energy density of liquefied ammonia is higher than that of liquefied hydrogen, making its transport more efficient.

“Ammonia is a very promising fuel option for shipping, and we are seeing growing interest in how we can safely and effectively deploy this technology,” explained Vidar Dolonen, DNV regional manager Korea & Japan.

“The AiP underscores that the maritime industry is not only looking to meet compliance targets, but that forward looking partners are committed to using their experience and expertise to embrace sustainable solutions today.”