The free convection heat transfer coefficient on a thin hot vertical plate suspended in still air can be determined from observations of the change in plate temperature with time as it cools. Assuming the plate is isothermal and radiation exchange with its surroundings is negligible, evaluate the convection coefficient, in W/m².K, at the instant of time when the plate temperature is 245°C and the change in plate temperature with time (dT/dt) is -0.028 K/s. The ambient air temperature is 25°C and the plate measures 0.325 x 0.325 m with a mass of 4.25 kg and a specific heat of 2770 J/kg-K. h = W/m².K

The free convection heat transfer coefficient on a thin hot vertical plate suspended in still air can be determined from observations of the change in plate temperature with time as it cools. Assuming the plate is isothermal and radiation exchange with its surroundings is negligible, evaluate the convection coefficient, in W/m².K, at the instant of time when the plate temperature is 245°C and the change in plate temperature with time (dT/dt) is -0.028 K/s. The ambient air temperature is 25°C and the plate measures 0.325 x 0.325 m with a mass of 4.25 kg and a specific heat of 2770 J/kg-K. h = W/m².K

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

1. PLEASE ANSWER ASAP

The free convection heat transfer coefficient on a thin hot vertical plate suspended in still air can be determined from observations of
the change in plate temperature with time as it cools. Assuming the plate is isothermal and radiation exchange with its surroundings is
negligible, evaluate the convection coefficient, in W/m².K, at the instant of time when the plate temperature is 245°C and the change
in plate temperature with time (dT/dt) is -0.028 K/s. The ambient air temperature is 25°C and the plate measures 0.325 x 0.325 m
with a mass of 4.25 kg and a specific heat of 2770 J/kg-K.
h =
W/m².K

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