Fuel Consumption Test On CA5000D Machine For Varberg Tunnel Construction

Implenia, the main builder of Sweden’s Varberg tunnel, conducted a fuel consumption test on their CA5000D machine to assess the variation in fuel consumption when the machine was operated in various settings. The purpose of the test was to investigate the differences in fuel usage when the machine was operated in a number of different modes. The results showed a 36% fuel savings, which were compatible with Dynapac’s measurements taken in Verkö, Karlskrona, in February 2022.

Machine Details

The machine used for the test was a CA5000D produced in 2021, and it had 931 hours on it. Implenia now owns the equipment, which was used to pack a sub-ballast layer that was roughly 0.5 m thick and made up of material fraction 0/90 that had been locally crushed from the coarser fraction. A grader scattered the debris that had been dumped along the railroad tracks by two to three dump trucks, and then a roller compacted it.

Data Collection

The machine was equipped with measuring tools required for recording engine data (CAN J1939), including those for engine speed, instantaneous fuel consumption, overall fuel consumption, etc. The data registration process took two working days, during which the driver was given specific instructions to collect comparable data but asked to drive “as usual.” The machine has a Dyn@lyzer for packing control, and this was running the entire time the measurement was being taken. After saving the gathered data, one can check to determine if the driver drove with the proper amplitude.

Fuel Consumption Results

The fuel consumption test results showed a 36% fuel savings. The measurement’s overall fuel savings came to around 36%, which is quite close to the results of Dynapac’s own tests at Verkö in February 2022. These results were achieved by operating the machine in various settings and modes, providing valuable insights into how the machine can be used more efficiently to save fuel during the construction of the Varberg tunnel.