In large steam power plants, the feed-water is frequently heated in a closed feed-water heater by using

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In large steam power plants, the feed-water is frequently heated in a closed feed-water heater by using steam extracted from the turbine at some stage. Steam enters the feed-water heater at 1 MPa and 200°C and leaves as saturated liquid at the same pressure. Feed-water enters the heater at 2.5 MPa and 50°C and leaves at 10°C below the exit temperature of the steam. Determine the ratio of the mass flow rates of the extracted steam and the feed-water.
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Thermodynamics An Engineering Approach

ISBN: 978-0073398174

8th edition

Authors: Yunus A. Cengel, Michael A. Boles

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