For a continuous miner (CM) panel, the following data are given.
| Parameter | Value |
|---|---|
| Data related to CM | |
| Dimension of a working face | 5.0 m (width) x 3.0 m (height) |
| Web depth, m | 0.6 |
| Time for one web cut up to full height, min | 9 |
| Data related to shuttle car | |
| Bucket capacity of shuttle car, tonne | 10 |
| Fill factor | 0.9 |
| Number of cars | 2 |
| Cycle time of each car (loading, travel, unloading), min | 6 |
Assume, unit weight of coal is 1.4 tonne/m³ and its swell factor is 1.2. Consider, 6 working hours per shift.
The non-working time in min, in working hours per shuttle car to dispatch all coal cut by the CM, is _____. (round off up to 2 decimals)
Min: 150 Max: 160
Answer: 155
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