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The next is to demonstrate the effects of the
recuperator AGT1500 has.
Start notch man
mini and design the turbine powered railcar equipped with 1500 horse
power class power pack. This time enable the recuperation. The default
thermal efficiency improves to 31.2 %, slightly better than that of
AGT1500. As the free version of notchman mini cannot modify this by
users, use this default value as is.
.
Other settings are just same as those set at the previous page.
The simulated total operating time is here. It takes a few tens of seconds
longer than previously simulated turbo trains. This is due to the increase
of the train mass caused by adding the recuperator.
The fuel consumption is dramatically reduced.
The next table is the comparison of the fuel consumption between non-recuperated
and recuperated.
| Consist |
non-recuperated |
recuperated |
| 2M4T |
1676.30 kg |
1232.36 kg |
| 3M3T |
2291.50 kg |
1399.42 kg |
| 4M2T |
2512.73 kg |
1556.47 kg |
But the DMU consumes only 1101.54 kg in the same section and
the turbo train(2) that operates this route almost in same time consumes
about 27 % much fuel.
This result is far better than that of "M1A1 Abrams turbine tank
versus Leopard 2 diesel tank". This is due to the difference of the
operating pattern between the tank and the semi-high speed
train. The next shows the percentage of the engine output used
during this operation.
In the semi-high speed train operation, 100 % output or 0 % output is mostly used. Trains
can coast long distance but tanks cannot. So that tanks must use fuels
while reducing speed gradually and the time engines run at the partial
load is far longer than trains.
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