An array of 190 electrical components, each dissipating P = 35 W, are attached to the bottom surface of a square copper plate. The length of the edge of the square plate is L= 0.1 m. All of the energy dissipated in the electrical components is transferred to water flowing over the top surface of the copper plate. The water flow over the plate in a direction that is parallel to the edge of the plate. A proturbence at the leading edge of the plate acts to trip the bounary layer into turbulent flow. The plate may be assumed to be isothermal since the thermal conductivity of copper is so high. The water velocity and temperature far from the plate are uo = 2.3 m/s and Too = 22 °C. The water's thermophysical properties (for application in correlations for the Nusselt number) may be approximated as v = 0.96x10-6 m²/s, kf = 0.62 W/m-K, and Pr = 5.2. What is the temperature of the copper plate in °C?

An array of 190 electrical components, each dissipating P = 35 W, are attached to the bottom surface of a square copper plate. The length of the edge of the square plate is L= 0.1 m. All of the energy dissipated in the electrical components is transferred to water flowing over the top surface of the copper plate. The water flow over the plate in a direction that is parallel to the edge of the plate. A proturbence at the leading edge of the plate acts to trip the bounary layer into turbulent flow. The plate may be assumed to be isothermal since the thermal conductivity of copper is so high. The water velocity and temperature far from the plate are uo = 2.3 m/s and Too = 22 °C. The water's thermophysical properties (for application in correlations for the Nusselt number) may be approximated as v = 0.96x10-6 m²/s, kf = 0.62 W/m-K, and Pr = 5.2. What is the temperature of the copper plate in °C?

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter3: Transient Heat Conduction

Section: Chapter Questions

Problem 3.1P: Consider a flat plate or a plane wall with a thickness L and a long cylinder of radius r0. Both of...

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