A. The temperature of a gas stream is to be measured by a thermocouple whose junction can be approximated as a 1-mm- diameter sphere, as shown in the figure. The properties of the junction are k- 35 W/m °C, p38500 kg/m', and Cp= 320 J/kg °C, and the convection heat transfer coefficient between the junction and the gas is h=210 W/m? . °C. Determine how long it will take for the thermocouple to read 99 percent of the initial temperature difference.

A. The temperature of a gas stream is to be measured by a thermocouple whose junction can be approximated as a 1-mm- diameter sphere, as shown in the figure. The properties of the junction are k- 35 W/m °C, p38500 kg/m', and Cp= 320 J/kg °C, and the convection heat transfer coefficient between the junction and the gas is h=210 W/m? . °C. Determine how long it will take for the thermocouple to read 99 percent of the initial temperature difference.

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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