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ISBN: 9781266657610

Author: CENGEL

Publisher: MCG CUSTOM

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Chapter 10.9, Problem 75P

A large food-processing plant requires 1.5 lbm/s of saturated or slightly superheated steam at 140 psia, which is extracted from the turbine of a cogeneration plant. The boiler generates steam at 800 psia and 1000°F at a rate of 10 lbm/s, and the condenser pressure is 2 psia. Steam leaves the process heater as a saturated liquid. It is then mixed with the feedwater at the same pressure, and this mixture is pumped to the boiler pressure. Assuming both the pumps and the turbine have isentropic efficiencies of 91 percent, determine (a) the rate of heat transfer to the boiler and (b) the power output of the cogeneration plant.

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Chapter 10.9, Problem 74P

Chapter 10.9, Problem 76P

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Chapter 10 Solutions

THERMODYNAMICS (LL)-W/ACCESS >CUSTOM<

Ch. 10.9 - Why is the Carnot cycle not a realistic model for...Ch. 10.9 - Why is excessive moisture in steam undesirable in...Ch. 10.9 - A steady-flow Carnot cycle uses water as the...Ch. 10.9 - A steady-flow Carnot cycle uses water as the...Ch. 10.9 - Consider a steady-flow Carnot cycle with water as...Ch. 10.9 - Water enters the boiler of a steady-flow Carnot...Ch. 10.9 - What four processes make up the simple ideal...Ch. 10.9 - Consider a simple ideal Rankine cycle with fixed...Ch. 10.9 - Consider a simple ideal Rankine cycle with fixed...Ch. 10.9 - Consider a simple ideal Rankine cycle with fixed...

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Solution Summary: The author explains the rate heat transfer to the boiler, and the formula for work done by the pump during process 1-2.

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