Questions from Principles Of Heat Transfer

Q: The inside surface of a 1-m-long, vertical

The inside surface of a 1-m-long, vertical, 5-cm-ID tube is maintained at 1208C. For saturated steam at 350 kPa condensing inside, estimate the average heat transfer coefficient and the condensation r...

Q: A horizontal, 2.5-cm-OD tube is

A horizontal, 2.5-cm-OD tube is maintained at a temperature of 27oC on its outer surface. Calculate the average heat transfer coefficient if saturated steam at 12 kPa is condensing on this tube.

Q: Repeat Problem 9.23 for a tier of six horizontal 2

Repeat Problem 9.23 for a tier of six horizontal 2.5-cm-OD tubes under similar thermal conditions.

Q: Saturated steam at 34 kPa condenses on a 1-m-

Saturated steam at 34 kPa condenses on a 1-m-tall vertical plate whose surface temperature is uniform at 608C. Compare the average heat transfer coefficient and the value of the coefficient 1/3 m, 2/3...

Q: At a pressure of 490 kPa, the saturation temperature of sulfur

At a pressure of 490 kPa, the saturation temperature of sulfur dioxide ( SO2) is 32oC, the density is 1350 kg/m3, the latent heat of vaporization is 343 kJ/kg, the absolute viscosity is 3.2 * 10-4 kg/...

Q: Repeat Problem 9.26 (b) and (c)

Repeat Problem 9.26 (b) and (c) but assume that condensation occurs on a 5-cm-OD, horizontal tube.

Q: The inner wall of a rocket motor combustion chamber receives 160 kW

The inner wall of a rocket motor combustion chamber receives 160 kW/m2 by radiation from a gas at 2760°C. The convection heat transfer coefficient between the gas and the wall is 110 W/ ( m...

Q: Problem 9.11 indicated that the Nusselt number for condensation depends

Problem 9.11 indicated that the Nusselt number for condensation depends on the Prandtl number and four other dimensionless groups including the Jakob number (Ja), the Bond number (Bo), and a n...

Q: Saturated methyl chloride at 430 kPa (abs) condenses on a

Saturated methyl chloride at 430 kPa (abs) condenses on a horizontal 10 * 10 bank of tubes. The 5-cm- OD tubes are equally spaced and are 10 cm apart center-to-center on rows and columns. If the surf...

Q: Estimate the maximum heat flux obtainable with nucleate pool boiling on a

Estimate the maximum heat flux obtainable with nucleate pool boiling on a clean surface for (a) water at 100 kPa on brass, (b) water at 1 MPa on brass.