Railway
ENERGY SAVING DRIVING
Railway companies need to install effective opportunities for reducing energy costs.
Training train engineers in energy saving operation is an obvious idea. The most helpful solution is a measuring instrument which shows energy consumption to the train operator. Power meters are a simple matter in electric locomotives.
In the case of a diesel locomotive, fuel consumption must be measured and displayed. Because of the harsh operating environment of the railway, measuring fuel consumption is metrologically a greater challenge than power measurement in an electric locomotive.
CALCULATING SECTION PROFILES
If a railway operation service is to be offered to a region, the costs must be known precisely.
Service providers acquire knowledge about what operation on the various sections costs. For this purpose, the railway operators determine fuel consumption on defined sections. A mountain section is more expensive
to operate than the same distance on the plain.
Our flowmeters can record fuel consumption values over long periods of time. The measured values are transmitted to the operator‘s electronic system via appropriate interfaces.
DIFFERENT LOAD RANGES
Diesel locomotives in passenger transport in particular have many stops. The locomotive is rapidly accelerated, then runs at reduced load and coasts to the next station. The load profile of the engine rarely shows full load. Partial load ranges and idling predominate.
In this operating mode, utmost measurement precision of the individual flowmeters is important, to obtain good system measurement precision.
A SINGLE LINE MEASUREMENT IS ALWAYS SUPERIOR TO A DIFFERENTIAL MEASUREMENT
The measurement precision of fuel consumption measurement is determined by the number of meters used. Where only one flowmeter per engine is required, the high precision of the AIC solution can be fully exploited. Whereas two volume meters are required, the system measurement precision is reduced according to Gaussian error propagation. So in this case only ONE is better than two, as well the cost for two meters is probably in no relation.
One AIC flow instrument will be sufficient if the fuel supply behind the tank branches into a ring line as well if the return line leads directly into the tank, we do have a solution for minimised cost of ownership combined with a compact flow meter.
