Steam at 8 bar enters the cylinder of a steam engine. The cylinder diameter is 0.2 m and the piston stroke is 0.4 m. Cut off is at 40 per cent of the stroke. The specific volume of the entering steam is 0.24 m3/kg. Expansion after cut off is poly tropic, n = 1.13. Calculate the work done against the piston in a single power stroke, and the rate of steam consumption in kg/h when running at 500 rev/min.
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