Another heavy duty alternative hits the road
“We are convinced that liquefied gas is one of the most important future alternatives to today’s vehicle fuels.” –Lars Mårtensson, director-environmental affairs, Volvo Trucks.
The effort to make natural gas a more efficient fuel for powering long-haul freight trucks increased this week as Volvo Trucks – a division of Sweden’s AB Volvo – officially revealed a production-line ready heavy duty model that runs on a mixture of 75% liquefied natural gas (LNG) and 25% diesel fuel. This is a truck that Volvo’s been working on in the prototype stage for some time.
The interesting twists to Volvo’s new FM MethaneDiesel model is that is can use either LNG or “biogas” refined from, say, the methane vapors generated from landfill decomposition as the main ingredient in its fuel cocktail, the company said. That’s because both natural gas and biogas share methane as the “base stock” in their composition, noted Lars Mårtensson, director-environmental affairs for Volvo Trucks.
He noted that Volvo uses a conventional 13-liter diesel engine generating 460 horsepower and roughly 1,696 ft-lbs. of torque. It’s equipped with gas injectors, a special Thermos-like fuel tank that keeps the gas liquefied and chilled to minus140 degrees Celsius (roughly minus 284 degrees Fahrenheit), plus a specially modified catalytic converter so it can operate on blended methane/diesel fuel. more







