Discussion
Steam demand is \( 2.4 \), \( 1.8 \), \( 0.9 \) and \( 1.5 \) t/h at four consumers, with a diversity factor of \( 0.75 \). The boiler should be rated at about
Answer: A
Correct answer: 4.95 t/h
Sum the demands and apply the diversity factor:
\[ 2.4 + 1.8 + 0.9 + 1.5 = 6.6\ \text{t/h} \]\[ 6.6 \times 0.75 = 4.95\ \text{t/h} \]Sizing on the raw 6.6 t/h would buy a boiler a third larger than the plant will ever draw at one time.
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