(a)
The maximum possible efficiency of the plant.
(a)
Answer to Problem 97P
The maximum possible efficiency of the plant is
Explanation of Solution
Write an expression for the maximum possible efficiency of the plant.
Here,
Conclusion:
Substitute
Thus, the maximum possible efficiency of the plant is
(b)
The rate at which the heat removed.
(b)
Answer to Problem 97P
The rate at which the heat removed is
Explanation of Solution
Write an expression for the heat removed.
Here,
Conclusion:
Substitute
Thus, the rate at which the heat removed is
(c)
The maximum possible rate at which water can be pumped uphill.
(c)
Answer to Problem 97P
The maximum possible rate at which water can be pumped uphill is
Explanation of Solution
Write an expression for the rate of work done.
Here,
Rewrite the equation (III) to find
Conclusion:
Substitute
Thus, the maximum possible rate at which water can be pumped uphill is
Thus, calculate the volume flow rate.
Here,
Thus, the maximum possible rate at which water can be pumped uphill is
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Chapter 15 Solutions
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