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Koja Marine champions energy-saving HVAC systems onboard – also for retrofit projects
by : SAMI J . ANTEROINEN
Cruise ship owners have increased interest in HVAC energy investment projects , due to the IMO ’ s new Carbon Intensity Indicator ( CII ) and rising fuel prices . As the Carbon Intensity Indicator is a measure of a ship ’ s energy efficiency , these issues have taken on a brand-new significance .
However , there is one more factor that outweighs all others in the cruise ship owners ’ minds :
“ The main trigger for the investment decision is the payback period , which is highly influenced by the used fuel type and its price , cruise profile , energy saving potential and the cost of the investment ,” says Teemu Tanninen , Director , Koja Marine .
Modern , big cruise ships have extensive HVAC systems in place for patron comfort – but are they always as energyefficient and low-carbon as possible ? Tanninen believes that energy costs can be brought down considerably in most cases .
“ Regarding to HVAC system energy consumption in the whole cruise ship scale , the HVAC consumes approximately between 10 – 15 % of the whole fuel consumption , depending on the HVAC technology and cruise profile ,” he starts off .
SECURE AIR FLOW TO CABINS
Tanninen points out that a working HVAC system can be divided into four sub systems : cabin , public , service and stairs .
28 seatec 2024