In a test of a steam power plant (Fig. P5.1), the measured rate of steam supply was

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In a test of a steam power plant (Fig. P5.1), the measured rate of steam supply was \(7.1 \mathrm{~kg} / \mathrm{s}\) when the net rate of work output was \(5000 \mathrm{~kW}\). The condensate left the condenser as saturated liquid at \(38{ }^{\circ} \mathrm{C}\) and the superheated steam leaving the boiler was at \(10 \mathrm{bar}\) and \(300^{\circ} \mathrm{C}\).

Neglecting the change in state of the feed water in passing through the feed pump, and taking the environment temperature as being equal to the saturation temperature of the

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condensate in the condenser, calculate the rational efficiency of the work-producing steam circuit (system A). Also calculate the thermal efficiency of the cyclic plant.
[83.3\%;24.3\%]

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Advanced Thermodynamics For Engineers

ISBN: 9780080999838

2nd Edition

Authors: D. E. Winterbone, Ali Turan

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