Determine the thermal efficiency of the engine

Reference no: EM131348674

1. The duty of a 1718 Newcomen engine was found to be 4.30 million. Determine its thermal efficiency (%).

2. In 1767, John Smeaton measured the performance of a particularly efficient Newcomen engine that had a 42.0-inch diameter piston and found that it produced 16.7 net horsepower with a duty of 7.44 million. Determine (a) the thermal efficiency of the engine and (b) the boiler heat input rate.

Reference no: EM131348674

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