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8. Two smooth rubber-lined fire hose each 90 m long and having a 25 mm diameter nozzles, are connected to a 150 mm fire hydrant. Cc = 1.0 and Cv = 0.97. It is necessary to throw streams 24 m high, the nozzles being 6 m above the hydrant. Determine the horsepower that must be supplied at the hydrant. f = 0.023. Note: energy loss at the pipe is hf = fLV²/D2g or 0.0826fLQ²/D5 8 HA = 56.45 m Q = 0.0213 m³/s HP = 15.8 hp 90 m 60 mm , 24 m 6 m

8. Two smooth rubber-lined fire hose each 90 m long and having a 25 mm diameter nozzles, are connected to a 150 mm fire hydrant. Cc = 1.0 and Cv = 0.97. It is necessary to throw streams 24 m high, the nozzles being 6 m above the hydrant. Determine the horsepower that must be supplied at the hydrant. f = 0.023. Note: energy loss at the pipe is hf = fLV²/D2g or 0.0826fLQ²/D5 8 HA = 56.45 m Q = 0.0213 m³/s HP = 15.8 hp 90 m 60 mm , 24 m 6 m

Sustainable Energy
Sustainable Energy
2nd Edition
ISBN:9781337551663
Author:DUNLAP, Richard A.
Publisher:DUNLAP, Richard A.
Chapter18: Energy Storage
Section: Chapter Questions
Problem 20P
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8. Two smooth rubber-lined fire hose each 90 m long and having a 25 mm diameter nozzles, are connected to a 150 mm fire hydrant. Cc = 1.0 and Cv = 0.97. It is necessary to throw streams 24 m high, the nozzles being 6 m above the hydrant. Determine the horsepower that must be supplied at the hydrant. f = 0.023. Note: energy loss at the pipe is hf = fLV²/D2g or 0.0826fLQ²/D5 8 HA = 56.45 m Q = 0.0213 m³/s HP = 15.8 hp 90 m 60 mm , 24 m 6 m
Transcribed Image Text:8. Two smooth rubber-lined fire hose each 90 m long and having a 25 mm diameter nozzles, are connected to a 150 mm fire hydrant. Cc = 1.0 and Cv = 0.97. It is necessary to throw streams 24 m high, the nozzles being 6 m above the hydrant. Determine the horsepower that must be supplied at the hydrant. f = 0.023. Note: energy loss at the pipe is hf = fLV²/D2g or 0.0826fLQ²/D5 8 HA = 56.45 m Q = 0.0213 m³/s HP = 15.8 hp 90 m 60 mm , 24 m 6 m
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