Wendy Laursen
Contributing Writer-
Ammonia Advances
Taking a well-to-wake approach to CO2 emissions means that the shipping industry will look beyond emerging engine technologies such as dual-fuel ammonia engines when considering the viability of alternative fuels.Engine manufacturers are optimizing combustion and reducing pilot fuel requirements, but any pilot diesel requirements mean the process is not 100% carbon free.This week, Hanwha Power Systems, Hanwha Ocean and Baker Hughes announced a different concept.
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The Technology Pathways that Lead to Fuel Cells
In an article by Rhonda Moniz published this week on MarineLink, Siemens sales executive Ed Schwarz noted the flexibility provided by an electric distribution “backbone” that enables ferry operators to add more batteries, switch to new fuels or become 100% emission free with fuel cells.A string of deliveries reported this week demonstrate that steps are being taken along this pathway for a range of…
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Is Stern Tube Damage Declining?
It might be easy to blame EALs, but the ongoing causes of stern tube damage are varied, and possibly declining.Environmentally Acceptable lubricants (EALs) gained market traction with the introduction of US VGP regulations in 2013. Since then, DNV has observed two major trends. The first, starting in 2013 was early life damage, either during sea trials or within the first five years of operation, where aft stern tube bearings typically failed under extreme load conditions.
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Gensets: New Fuels but Perennial Goals
Fuel flexibility may be a key driver for recent developments in gensets, but the perennial goals of lowering CapEx and OpEx remain.Fuel flexibility is one of the pillars of decarbonization that is being embraced by genset OEMs. Fuel efficiency, a second pillar, goes hand in hand with that because new fuels will be more expensive, but these concerns come in addition to the on-going drive to reduce CapEx…