In an attempt to improve the range of Unmanned Undersea Vehicles (UUVs), the alternative
energy company AlumiFuel Power Inc, (API) researching on behalf of the US Navy, into
possible use of hydrogen generation using steam and aluminum. This method produces the gas
using aluminum and steam (water) in a controlled exothermic reaction to producing hydrogen
gas, water and aluminum oxide. The rate of hydrogen emitted is simply controlled by the supply
of steam reacting with the aluminum which can be fed straight to a fuel cell or combustion
Last month, GL Group, presented a future concept of a zero-emission container feeder vessel.
The container ship, aimed at Northern European feeder services, uses liquid hydrogen as fuel to generate power with a combined fuel cell and battery system. The design of the container ship with capacity for 1000TEUs with 150 reefer slots, is for a full open top giving improved port efficiency and reduced loading / unloading times to further reduce CO2 emissions. Propulsion is by two azimuthing podded propulsors and one take me home thruster providing redundancy and superior manoeuverability. The service speed is 15kn. The concept envisions that the liquid hydrogen would be produced and stored offshore close to a wind farm. The cost of liquid hydrogen is higher than marine gas oil (MGO), however, costs could be similar after 2025 if emission surcharges are introduced. [More]
Tags: GL Group, Exchange Forum, European Union, EU, emission target, Dr. Sames, zero emission, hydrogen, container feeder vessel, fuel cell, azimuthing pod
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]