Questions from Thermal Fluid Science


Q: The compressed air requirements of a textile factory are met by a

The compressed air requirements of a textile factory are met by a large compressor that draws in 0.6 m3/s air at atmospheric conditions of 20°C and 1 bar (100 kPa) and consumes 300 kW electric power w...

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Q: A car is accelerated from rest to 85 km/h in

A car is accelerated from rest to 85 km/h in 10 s. Would the energy transferred to the car be different if it were accelerated to the same speed in 5 s?

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Q: Reconsider Prob. 14–100. In order to reduce the

Reconsider Prob. 14–100. In order to reduce the head losses in the piping and thus the power wasted, someone suggests doubling the diameter of the 83-m-long compressed air pipes. Calculate the reducti...

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Q: A water fountain is to be installed at a remote location by

A water fountain is to be installed at a remote location by attaching a cast iron pipe directly to a water main through which water is flowing at 70°F and 60 psig. The entrance to the pipe...

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Q: Repeat Prob. 14–102E for plastic (smooth) pipes

Repeat Prob. 14–102E for plastic (smooth) pipes. Data from Prob. 14-102: A water fountain is to be installed at a remote location by attaching a cast iron pipe directly to a water m...

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Q: In a hydroelectric power plant, water at 20°C is

In a hydroelectric power plant, water at 20°C is supplied to the turbine at a rate of 0.55 m3/s through a 200-m-long, 0.35-m-diameter cast iron pipe. The elevation difference between the free surface...

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Q: In Prob. 14–104, the pipe diameter is tripled

In Prob. 14–104, the pipe diameter is tripled in order to reduce the pipe losses. Determine the percent increase in the net power output as a result of this modification. Data from Prob. 14-104: In a...

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Q: The drinking water needs of an office are met by large water

The drinking water needs of an office are met by large water bottles. One end of a 0.35-in diameter, 6-ft-long plastic hose is inserted into the bottle placed on a high stand, while the other end with...

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Q: Reconsider Prob. 14–106E. Using appropriate software, investigate

Reconsider Prob. 14–106E. Using appropriate software, investigate the effect of the hose diameter on the time required to fill a glass when the bottle is full. Let the diameter vary...

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Q: Reconsider Prob. 14–106E. The office worker who set

Reconsider Prob. 14–106E. The office worker who set up the siphoning system purchased a 12-ft long reel of the plastic tube and wanted to use the whole thing to avoid cutting it in p...

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