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In a small power plant, a steam at a rate of 2 kg/s and 4000 kPa...

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In a small power plant, a steam at a rate of 2 kg/s and 4000 kPa enters a two stages steady-flow steam turbine. During the fi

In a small power plant, a steam at a rate of 2 kg/s and 4000 kPa enters a two stages steady-flow steam turbine. During the first stage, the steam expands in the turbine while doing work until the turbine exit pressure is 500 kPa. At that point, 10% of the steam is removed from the turbine for other uses. During the second stage, the remaining portion of steam, the 90% of the steam, continues to expand until it exits the turbine at 100 kPa and 150°C. The expansion process through the turbine is isentropic (reversible and adiabatic). 1. Calculate the isentropic work delivered by the steam. 14% 2. If the turbine isentropic efficiency is 85%, what is the actual work done by the steam? 3% 3. Plot the TS diagram showing all the states and numbers on it. 3%

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