October 29, 2010
Hapag-Lloyd seeks to trim carbon footprint
Hapag-Lloyd AG is looking to trim its carbon footprint by optimizing the trim of its ships. It is to deploy a Dynamic Trimming Assistant (DTA) on its containership Osaka Express.
Developed by Eniram Ltd. of Finland, the DTA is a vessel based system for dynamically monitoring and optimizing the trim.
The main benefits claimed for DTA are
potential for substantial fuel savings, even up to 5 percent
increased vessel performance due to better utilization of the machinery
environmental savings; less pollution by improved fuel efficiency
According to Eniram, DTA has demonstrated fuel consumption savings of 1- 5 percent on similar vessels.
The 8,750 TEU Osaka Express will have three Eniram attitude sensors installed to ensure an accurate measure of current trim can be calculated at all times. The Eniram system also collects data such as propulsion power, vessel draft and movement and other variables such as weather and waves. These data are then analyzed and an optimum trim level is displayed in an easy to use "traffic light" graphical interface, guiding the Osaka Express crew to make appropriate adjustments. As a result the crew can be confident that the vessel will move through the water as efficiently as possible.
"I am delighted that Hapag-Lloyd joins our growing list of world class shipping companies implementing DTA as part of their continuous improvement initiatives to reduce fuel consumption and minimise emissions" commented Philip Padfield, CEO of Eniram. "We are absolutely committed to helping Hapag Lloyd achieve its operational efficiencies and play a part in their emissions reduction goals."
Existing users of DTA, include Carnival Cruise Lines to roll out the solution to its cruise ships. The solution is currently in use on the Carnival Legend, Carnival Pride, Carnival Spirit and Carnival Miracle with further implementations planned,
At first, many Carnival officers were skeptical about the difference that DTA would make, however, over time, their views have changed.
"As with all new technology there is a learning curve," sayss explains Robert C. Spicer, vice president of energy conservation at CCL.. "What we have found is that once DTA has been running for a while, and the officers start to see its value, then we receive positive feedback from the staff. Overall, I would say we have had positive acceptance of the product. DTA is an excellent operations tool."
Eniram says that Carnival Cruise Lines has determined that the use of DTA has led to a reduction in fuel consumption across its fleet.
Mr. Spicer says: "We expect to save more than 200 tons of carbon fuel per year, per ship, which could represent financial savings of more than US $100,000 per ship, depending on the cost of fuel."
DTA collects data from each voyage that a vessel makes and uses this to constantly fine tune its statistical models and give users the best possible information.
"Like a fine wine, DTA gets better with age," says Mr. Spicer. "As more data is collected over the years for a particular ship and hull form, the statistical model in DTA learns. This learning helps to refine the visual feedback to officers, and we expect DTA to continue to add value to our operation for many years to come."