Questions from Thermal Fluid Science

Q: Cold water (cp = 4180 J/kg⋅K)

Cold water (cp = 4180 J/kg⋅K) enters the tubes of a heat exchanger with two shell passes and 20 tube passes at 15°C at a rate of 4 kg/s, while hot oil (cp = 2200 J/kg&acir...

Q: What does the view factor represent? When is the view factor

What does the view factor represent? When is the view factor from a surface to itself not zero?

Q: A shell-and-tube heat exchanger is used for cooling

A shell-and-tube heat exchanger is used for cooling 47 kg/s of a process stream flowing through the tubes from 160°C to 100°C. This heat exchanger has a total of 100 identical tubes, each with an insi...

Q: What is visible light? How does it differ from the other

What is visible light? How does it differ from the other forms of electromagnetic radiation?

Q: A two-shell-pass and four-tube-pass

A two-shell-pass and four-tube-pass heat exchanger is used for heating a hydrocarbon stream (cp = 2.0 kJ/kg⋅K) steadily from 20°C to 50°C. A water stream enters the shell side at 80°C and leaves at 40...

Q: How can you determine the view factor F12 when the view factor

How can you determine the view factor F12 when the view factor F21 and the surface areas are available?

Q: Does hfg change with pressure? How?

Does hfg change with pressure? How?

Q: A shell-and-tube heat exchanger with two shell passes

A shell-and-tube heat exchanger with two shell passes and four tube passes is used for cooling oil (cp = 2.0 kJ/kg⋅K) from 125°C to 55°C. The coolant is water, which enters the shell side at 25°C and...

Q: What are the summation rule and the superposition rule for view factors

What are the summation rule and the superposition rule for view factors?

Q: Saturated water vapor at 100°C condenses in the shell side

Saturated water vapor at 100°C condenses in the shell side of a one-shell and two-tube heat exchanger with a surface area of 0.5 m2 and an overall heat transfer coefficient of 2000 W/m2&aci...