Belgian Maker Unveils Methanol Engine

Available in two in-line and two vee-form configurations, each deliverable at four crankshaft speeds, the 256mm-bore design can produce a maximum continuous output of 221kW per cylinder in its 1,000rpm versions.

Depending on operational profile and load, a fuel usage ratio of 70% methanol and 30% conventional fuel, or biofuel, can be achieved, ensuring stable combustion. The dual-fuel concept means that a seamless switch to diesel oil or biofuel can be made if methanol is not available, and may be effected automatically and even under load without incurring loss of power in the event of a problem with the fuel supply system.

ABC claims that the DZD MeOH type reduces CO₂ emissions by up to 70%. By incorporating the proprietary exhaust aftertreatment system (EATS), particle emissions(PM) and nitrogen gases(NOx) are virtually eliminated. The modular EATS equipment comprises a diesel particulate filter (DPF) and selective catalytic reduction (SCR)/ oxicat arrangement, so that the strictest emissions standards are achieved. In cases where biodiesel or hydrogenated vegetable oil (HVO) are used in place of conventional fuel, CO₂ is cut to an even greater extent.

In the MeOH design, liquid methanol is injected at low pressure (less than 10 bar) into the combustion chamber via port injection, i.e. before the intake valves. The system is less complex than high-pressure fuel injection, incurring lower cost as regards both purchase and maintenance. Through the adoption of double-wall methanol fuel pipes to eliminate leakage, engine installations are IGF Code-compliant. The MeOH series does not call for lubrication additives in the methanol.

The new range has been released with immediate effect, and ABC states that it has already received orders for the methanol-capable engines from several sources in various applications. Furthermore, the technology provides for retrofit of existing ABC diesel engines to dual-fuel methanol operation. Under an EU-funded project, an ABC twin-engined tug owned by the Port of Antwerp-Bruges is currently being converted to methanol propulsion, as part of the port’s strategy to attain CO₂ neutrality and ‘sustainability’.

MAIN PARTICULARS – DZD MeOH engine series