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The temperature of a gas stream is to be measured by a thermocouple whose junction can be approximated as a 1.2-mm-diameter sphere. The properties of the junction are k = 35 W/m-K, r = 8500 kg/m3 and cp = 320 J/kg-K and the heat transfer coefficient between the junction and the gas is h = 110 W/m2 -K. Determine how long it will take for the thermocouple to read 99 percent of the initial temperature difference

The temperature of a gas stream is to be measured by a thermocouple whose junction can be approximated as a 1.2-mm-diameter sphere. The properties of the junction are k = 35 W/m-K, r = 8500 kg/m3 and cp = 320 J/kg-K and the heat transfer coefficient between the junction and the gas is h = 110 W/m2 -K. Determine how long it will take for the thermocouple to read 99 percent of the initial temperature difference

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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The temperature of a gas stream is to be measured by a thermocouple whose junction can be approximated as a 1.2-mm-diameter sphere. The properties of the junction are k = 35 W/m-K, r = 8500 kg/m3 and cp = 320 J/kg-K and the heat transfer coefficient between the junction and the gas is h = 110 W/m2 -K. Determine how long it will take for the thermocouple to read 99 percent of the initial temperature difference
Transcribed Image Text:The temperature of a gas stream is to be measured by a thermocouple whose junction can be approximated as a 1.2-mm-diameter sphere. The properties of the junction are k = 35 W/m-K, r = 8500 kg/m3 and cp = 320 J/kg-K and the heat transfer coefficient between the junction and the gas is h = 110 W/m2 -K. Determine how long it will take for the thermocouple to read 99 percent of the initial temperature difference
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