Q: A house built on a riverside is to be cooled in summer
A house built on a riverside is to be cooled in summer by utilizing the cool water of the river. A 20-m-long section of a circular stainless-steel duct of 20 cm diameter passes through the water. Air...
See AnswerQ: The velocity profile in fully developed laminar flow in a circular pipe
The velocity profile in fully developed laminar flow in a circular pipe, in m/s, is given by u(r) = 6(1 − 100r2), where r is the radial distance from the centerline of the pipe in m. Determine (a) the...
See AnswerQ: What are the different mechanisms for transferring energy to or from a
What are the different mechanisms for transferring energy to or from a control volume?
See AnswerQ: Two pipes of identical diameter and material are connected in parallel.
Two pipes of identical diameter and material are connected in parallel. The length of pipe A is five times the length of pipe B. Assuming the flow is fully turbulent in both pipes and thus the frictio...
See AnswerQ: Repeat Prob. 14–92 except let the length of pipe
Repeat Prob. 14–92 except let the length of pipe A be three times that of pipe B. Compare this result to that of Prob. 14–92. Does the difference agree with your intuition? Explain. Data from Prob....
See AnswerQ: Shell-and-tube heat exchangers with hundreds of tubes housed
Shell-and-tube heat exchangers with hundreds of tubes housed in a shell are commonly used in practice for heat transfer between two fluids. Such a heat exchanger used in an active solar hot water syst...
See AnswerQ: Water at 15°C is to be discharged from a reservoir
Water at 15°C is to be discharged from a reservoir at a rate of 18 L/s using two horizontal cast iron pipes connected in series and a pump between them. The first pipe is 20 m long and has...
See AnswerQ: Reconsider Prob. 14–95. Using appropriate software, investigate
Reconsider Prob. 14–95. Using appropriate software, investigate the effect of the second pipe diameter on the required pumping head to maintain the indicated flow rate. Let the diame...
See AnswerQ: A pipeline that transports oil at 40°C at a rate
A pipeline that transports oil at 40°C at a rate of 3 m3/s branches out into two parallel pipes made of commercial steel that reconnect downstream. Pipe A is 500 m long and has a diameter o...
See AnswerQ: Repeat Prob. 14–97 for hot-water flow of
Repeat Prob. 14–97 for hot-water flow of a district heating system at 100°C. Data from Prob. 14-97: A pipeline that transports oil at 40°C at a rate of 3 m3/s...
See Answer
