Questions from Thermal Fluid Science

Q: Reconsider Prob. 17–69. Using appropriate software, investigate

Reconsider Prob. 17–69. Using appropriate software, investigate the effect of the thickness of the insulation on the rate of heat loss from the steam and the temperature drop across the insulation lay...

Q: What is the physical significance of the Fourier number? Will the

What is the physical significance of the Fourier number? Will the Fourier number for a specified heat transfer problem double when the time is doubled?

Q: A 50-m-long section of a steam pipe whose

A 50-m-long section of a steam pipe whose outer diameter is 10 cm passes through an open space at 15°C. The average temperature of the outer surface of the pipe is measured to be 150Â...

Q: Can the one-term approximate solutions for a plane wall exposed

Can the one-term approximate solutions for a plane wall exposed to convection on both sides be used for a plane wall with one side exposed to convection while the other side is insulated? Explain.

Q: Superheated steam at an average temperature 200°C is transported through

Superheated steam at an average temperature 200°C is transported through a steel pipe (k = 50 W/m⋅K, Do = 8.0 cm, Di = 6.0 cm, and L = 20.0 m). The pipe is insulated with a 4-cm thick layer of gypsum...

Q: How can we use the one-term approximate solutions when the

How can we use the one-term approximate solutions when the surface temperature of the geometry is specified instead of the temperature of the surrounding medium and the convection heat transfer coeffi...

Q: Steam exiting the turbine of a steam power plant at 100°

Steam exiting the turbine of a steam power plant at 100°F is to be condensed in a large condenser by cooling water flowing through copper pipes (k = 223 Btu/hâ‹…ftâ
...

Q: The Biot number during a heat transfer process between a sphere and

The Biot number during a heat transfer process between a sphere and its surroundings is determined to be 0.02. Would you use lumped system analysis or the one-term approximate solutions when determini...

Q: Repeat Prob. 17–73E, assuming that a 0.

Repeat Prob. 17–73E, assuming that a 0.01-in-thick layer of mineral deposit (k = 0.5 Btu/h⋅ft⋅°F) has formed on the inner surface of th...

Q: Solve Prob. 1–17 using appropriate software. Print out

Solve Prob. 1–17 using appropriate software. Print out the entire solution, including the numerical results with proper units. Data from Problem 1-17: A 2-kg rock is thrown upward with a force of 200...