
Concept explainers
(a)
The best efficiency point and the maximum efficiency for given parameters.

Answer to Problem 11.31P
The required maximum efficiency of
Explanation of Solution
Given Information:
Formula used:
Calculation:
To solve this problem, first we will convert the given data into efficiency, like at
We know that,
Put the values in the above equation;
After conversion the table look like:
Q gal/min | 0 | 400 | 800 | 1200 | 1600 | 2000 | |
|
0 | |
55% | 70% | 80% | 85% | 82% |
Therefore the maximum efficiency of
(b)
The most effective flow rate, resulting head and brake horsepower.

Answer to Problem 11.31P
The required values are:
Flow rate =
Head =
BHP =
Explanation of Solution
Given information:
Formula used:
Calculation:
Since we don’t know the values of
Put the values in the above equation;
And,
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Chapter 11 Solutions
Fluid Mechanics
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