A centrifugal pump is require net pressure of 4 kg/cm2. Dete required by the pump, if its o- gravity of gasoline as 0.7. (57
A centrifugal pump is require net pressure of 4 kg/cm2. Dete required by the pump, if its o- gravity of gasoline as 0.7. (57
Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Chapter40: Typical Operating Conditions
Section: Chapter Questions
Problem 10RQ: The seasonal energy efficiency ratio (SEER) includes the energy used in the _____and _____cycles.
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Question
![A centrifugal pump is required to handle 50 lit/sec of gasoline against a
net pressure of 4 kg/cm'. Determine the head in m of liquid and the HP
required by the pump, if its overall efficiency is 62%. Take the specific
gravity of gasoline as 0.7. (57 and 43)
A centrifugal pump draws water from a sump through a vertical 15 cm
pipe. The
3.5 m above water level in the sump. While pumping 35 lit/sec, gauges
near the pump at entrance and discharge read 0.35 kg/cm and+1.8
kg/cm respectively. The discharge gauge is 0.5 m above the suction
gauge. Determine the horsepower output of the pump.
pump
has a horizontal discharge pipe 10 cm diameter which is
(10.82)
To p. edict the performance of a loge centrifugal pump, its model, having
the following specification, was made:
P = 24 IIP H=8 m N=925 rpm
Diameter of model pump impeller is 9 times smaller than that of the
prototype. The prototype pump has to work against a head of 30 m. Find
its working speed and HP required to drive it. Determine also the rate of
flow of both the pumps. (35.2 m'/ sec,
134 rpm, 14,100 HP)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7d01cd01-0cc2-42ad-ad1b-728c4affe9e4%2Faf0bcb12-7a03-4600-ba8e-0866e920fd37%2Fsk0euti_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A centrifugal pump is required to handle 50 lit/sec of gasoline against a
net pressure of 4 kg/cm'. Determine the head in m of liquid and the HP
required by the pump, if its overall efficiency is 62%. Take the specific
gravity of gasoline as 0.7. (57 and 43)
A centrifugal pump draws water from a sump through a vertical 15 cm
pipe. The
3.5 m above water level in the sump. While pumping 35 lit/sec, gauges
near the pump at entrance and discharge read 0.35 kg/cm and+1.8
kg/cm respectively. The discharge gauge is 0.5 m above the suction
gauge. Determine the horsepower output of the pump.
pump
has a horizontal discharge pipe 10 cm diameter which is
(10.82)
To p. edict the performance of a loge centrifugal pump, its model, having
the following specification, was made:
P = 24 IIP H=8 m N=925 rpm
Diameter of model pump impeller is 9 times smaller than that of the
prototype. The prototype pump has to work against a head of 30 m. Find
its working speed and HP required to drive it. Determine also the rate of
flow of both the pumps. (35.2 m'/ sec,
134 rpm, 14,100 HP)
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