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Engineering and Tech / Fundamentals of Thermodynamcs 8 / Chapter 4 / Problem 203EUP

Fundamentals of Thermodynamcs | 8th Edition | ISBN: 9781118131992 | Authors: Claus Borgnakke, Richard E. Sonntag

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A geothermal supply of hot water operates a steam turbine,

Chapter 4, Problem 203EUP

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QUESTION:

Problem 203EUP

A geothermal supply of hot water operates a steam turbine, as shown in Fig. P4.125 The highpressure water at 200 lbf/in.2, 350 F is throttled into a flash evaporator chamber, which forms liquid and vapor at a lower pressure of 60 lbf/in.2. The liquid is discarded while the saturated vapor feeds the turbine and exits at 1 lbf/in.2, 90% quality. If the turbine should produce 1000 hp, find the required mass flow rate of hot geothermal water.

FIGURE P4.125

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QUESTION:

Problem 203EUP

A geothermal supply of hot water operates a steam turbine, as shown in Fig. P4.125 The highpressure water at 200 lbf/in.2, 350 F is throttled into a flash evaporator chamber, which forms liquid and vapor at a lower pressure of 60 lbf/in.2. The liquid is discarded while the saturated vapor feeds the turbine and exits at 1 lbf/in.2, 90% quality. If the turbine should produce 1000 hp, find the required mass flow rate of hot geothermal water.

FIGURE P4.125

ANSWER:

Solution

Step 1 of 3

We need to find out the required mass flow rate of hot geothermal water.

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