World News
Fuel-Saving Pump Systems Could Save $500,000 per Year
Pump maker Grundfos Holding A/S (Grundfos) says a pilot project found its fuel-saving technology could save $35,000 per year on one ship, and the savings could be a much as $500,000 for a larger vessel.
Grundfos conducted the test project with shipping line Lauritzen Bulkers on the Durban Bulker, auditing the energy used to cool the ship's engines and run electronic applications, as well as diesel generators used to make the electricity.
Among the improvements suggested by the audit were adjusting the use of cooling systems that use sea water based on the water's temperature and reducing power consumption when the ship's engines are going at a slower pace.
"We have been focusing on reducing our energy consumption for quite some time, but actually I was surprised, when I found out how significant the savings really are," said Søren Roschmann, technical superintendent at Lauritzen Bulkers.
"With the Grundfos solution, we can reduce our energy consumption dramatically.
"My estimate is that we on average can spend 30-50 percent less energy on the pumps on our ships."
Grundfos said the savings for the 32,545 dead weight tonne (dwt) Durban Bulker will come to about $35,000 per year, but a large container bulker could save around $500,000 per year.
The company said audits will find different methods of saving energy for different ships.
"Roughly 60,000 ships are sailing the oceans, and there is room for energy improvements on most of them," said Kim Kirkegaard, Business Development Manager at Grundfos.
"On top of that we can add the approximately 2,000 new ships that are built every year.
"They do not need only one pump, they need a lot of pumps, which brings along a great potential for business as well as energy reducing."
Grundfos makes 16 million pump units a year, including marine systems for ballast water, engine cooling, fire fighting, boiler feed, and essential utilities, according to its website.