CO2

New Technologies to Reduce CO2 Emissions

MTI is conducting various R&D projects and tests on actual ships to reduce CO2 emissions prior to the strengthening of international regulations.

1. Solar-Power-Assisted Vessel

NYK’s pure car carrier Auriga Leader was equipped with a solar-power system under the joint project between NYK and Nippon Oil Corporation aimed at reducing CO2 emissions. MTI worked to develop the technology to stably supply new energy such as solar power electricity, which fluctuates a lot, in the vessel.

The hybrid power supply system for vessels through the use of the large nickel-hydrogen batteries known as Gigacell® has been studied jointly with Kawasaki Heavy Industries Ltd. since fiscal 2009 with support from the Ministry of Land, Infrastructure, Transport and Tourism and Class NK.

Note: Charging and discharging a fluctuating amount of solar power generated by this hybrid power supply system will stabilize the supply to the vessel’s electrical power system. This result will also minimize output fluctuations from the diesel power generator and further secure a stable power supply.

2. Combustion Equipment for Water-Emulsion Fuel

This equipment burns a composite fuel of water and heavy oil (water-emulsion fuel) in marine auxiliary boilers. The combustibility of water-emulsion fuel is higher than the combustibility of heavy oil alone and therefore helps to reduce fuel consumption in marine auxiliary boilers. The equipment is additionally environment-friendly because water-emulsion fuel emits cleaner exhaust gas (less CO2 and NOx emissions).

3. Low-Temperature Exhaust-Heat Power Plant

We jointly study technology to cut CO2 emissions at the low-temperature exhaust-heat power plant with support from the Ministry of Land, Infrastructure, Transport and Tourism and Class NK.


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