Saturated steam at 100 °C in condensing over 1-cm diameter vertical metal rod which maintained at 93 °C. The rod is 38.7 cm long. Properties of saturated water are: Conductivity for liquid = 0.680 W/m.K, Specific volume for liquid = 0.00104 m3/kg, Viscosity for liquid = 279 x 10-° Pa.s, Enthalpy of vaporization = 2257 kJ/kg. What is the heat transfer coefficient of condensation (kW/m2.K)?

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
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Chapter9: Heat Transfer With Phase Change
Section: Chapter Questions
Problem 9.26P
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Saturated steam at 100 °C in condensing
over 1-cm diameter vertical metal rod which
maintained at 93 °C. The rod is 38.7 cm long.
Properties of saturated water are:
Conductivity for liquid = 0.680 W/m.K,
3
Specific volume for liquid
= 0.00104 m/kg,
Viscosity for liquid = 279 x 10-6
Enthalpy of vaporization = 2257 kJ/kg. What
is the heat transfer coefficient of
condensation (kW/m2.K)?
Select one:
A. 7.791
B. 7.157
C. 9.602
D. 9.059
Pa.s,
E. 8.425
Transcribed Image Text:Saturated steam at 100 °C in condensing over 1-cm diameter vertical metal rod which maintained at 93 °C. The rod is 38.7 cm long. Properties of saturated water are: Conductivity for liquid = 0.680 W/m.K, 3 Specific volume for liquid = 0.00104 m/kg, Viscosity for liquid = 279 x 10-6 Enthalpy of vaporization = 2257 kJ/kg. What is the heat transfer coefficient of condensation (kW/m2.K)? Select one: A. 7.791 B. 7.157 C. 9.602 D. 9.059 Pa.s, E. 8.425
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