A bus, driven by methanol gas,is about to go into service in West Berlin.
GV Bus driving in traffic
GV/CU Bus and inscription on side: "METHANOL ANTRIEB" (3 shots)
SVs Engine and controls of bus (3 shots)
SV Designer Horst Bermann speaking
GV Bus driving off
TRANSCRIPT FOR SHOT FOUR:
BERGMANN: "The very importance of this bus is that it is driven by an alcohol-gas engine, with heat recovery. That means that the fuel is filled as normal in the fuel tank, but is vaporised by cooling water of the engine, and this has the advantage that you have got very good emissions, very low noise level, very low hydro-carbon emission, very low nitro-oxide emission, and a very low fuel consumption."
Script is copyright Reuters Limited. All rights reserved
Background: A bus, driven by methanol gas,is about to go into service in West Berlin. It will be under the control of the West Berlin Public Transport Company (BVG). The bus will be powered by a new-style methanol propulsion unit, which has evolved during tests that Daimler-Benz have been carrying out at their headquarters in Stuttgart. The company says this unit burns the alcohol-gas furl about 10 percent more efficiently than spark-ignition methanol systems that are already powering buses in San Francisco in California; in Auckland, New Zealand and Pretoria, South Africa. Methanol can be made from coal or household refuse. Daimler-Benz say it could prove a boon in energy use for those countries that are planning to make methanol from natural gas. Methanol evaporates at a low temperature (65 degrees Centigrade -- 149 degrees Fahrenheit), using energy that comes from engine heat, which normally dissipates uselessly through a vehicle's radiator and exhaust. Daimler-Benz engineers say it is more efficient than the diesel engine, which, to date, has been considered the most practical engine for powering trucks, buses and machinery.