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Engineering and Tech / Fundamentals of Thermodynamcs 8 / Chapter 5 / Problem 103HP

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

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Consider a combination of a gas turbine power plant and a

Chapter 5, Problem 103HP

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Problem 103HP

Consider a combination of a gas turbine power plant and a steam power plant, as shown in Fig. P5.4. The gas turbine operates at higher temperatures (thus called a topping cycle) than the steam power plant (thus called a bottom cycle). Assume both cycles have a thermal efficiency of 32%. What is the efficiency of the overall combination, assuming QL in the gas turbine equals QH to the steam power plant?

FIGURE P5.4

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QUESTION:

Problem 103HP

Consider a combination of a gas turbine power plant and a steam power plant, as shown in Fig. P5.4. The gas turbine operates at higher temperatures (thus called a topping cycle) than the steam power plant (thus called a bottom cycle). Assume both cycles have a thermal efficiency of 32%. What is the efficiency of the overall combination, assuming QL in the gas turbine equals QH to the steam power plant?

FIGURE P5.4

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We need to find out the efficiency of the overall combination.

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