BMT Nigel Gee Ltd (BMT), has won an order in China for the design of an all electric 150 passenger ferry for inshore and coastal areas. The electric motors of the LOA 85 ft (26 m) catamaran ferry will achieve 10 kn (18.5 km/h) service speed. Solar cells will be incorporated into the roof structure and electrical energy will be stored using a new technology “VRB battery”. Construction of the new all electric ferry will start by the middle of 2011 with trials and delivery by mid- 2012. [More]
The 100 passenger Hamburg, Germany tourist vessel Alsterwasser is back in service after refurbishment following a devastating fire last year. The hydrogen fueled vessel has two 50 kW (67 hp) fuel cells powering a100kW (134 hp) hybrid electric propulsion system with lead acid batteries. The vessel was built in 2007 and entered service in 2008. The hull has an LOA of 25.5 m (84 ft), beam 5.2 m (17 ft), a draft (laden) of 1.3 m (4.2 ft) and displacement of 72 tonnes (79 tons). The maximum height of 2.6 m (8.5 ft) can be reduced to 2.3 m (7.5 ft) by lowering the cabin roof to allow passage under low bridges. The ship including fuel cell propulsion system is classified by Germanischer Lloyd. The hydrogen is sufficient for three days power supply, refueling takes approximately 12 minutes. The annual nett benefit to the environment is a saving of 1,000 kg of NOx (1.1 tons), 220 kg (485 lbs) SOx, 40 g (1.4 oz) of particulate and 70 tonnes (77 tons) of CO2. [More]
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In a bold attempt to cut down exhaust emissions to zero, a new canal cruise boat Nemo H2 has joined the fleet operated by Rederij Lovers, Amsterdam.
The canal boat is similar to conventionally powered boats with panoramic windows but is of course, silent and produces zero emissions.
Main propulsion is provided by a single 75 kW Voith azimuth electric thruster in the stern, with an 11 kW electric bow thruster in the bow. Electric power is produced from twin 30 kW PEM fuel cells with a 70 kWh Li-phosphate battery. The fuel cells run on hydrogen stored in six cylinders at a pressure of 35 MPa with a total capacity of 24kg of gas. Maximum speed is 8.6 kts and autonomy at a mean speed of seven kts is nine hours. [More]
At the recent International Tug & Salvage Conference in Vancouver details of a new hybrid tug was presented with the triple propulsion modes of diesel electric, battery and fuel cell claiming to give a 67 per cent emission savings over conventional diesel operation. Aim of this particular Hybrid Electric Tug design is to provide an operating mode of zero emissions for the majority of the tug's duty profile during low power operation up to 35 per cent of full power: this includes transits at a cruising speed of about nine knots. Based on a current conventional 24-m hull design developed by Capilano Maritime Design Ltd. with 55-tonne bollard pull, a more powerful 70-tonnes bollard pull version would only require minor changes to the hull and propulsion drives with an increase in battery capacity with diesel generator and fuel cell systems remaining unchanged. Four fuel cells of the PEM type are specified giving a total continuous power output of 600kWe, representing 17 per cent of power. There is a 1,000 kW-h capacity Li-Ion battery system which allows a combined power output of 1,250 kWe. A storage capacity of 1,200 kg of hydrogen provides an endurance of about 40 hours at full power, sufficient to allow refueling intervals of about once per week. [More]