A J- type thermocouple is used to measure the temperature in a heating process. Sheath material used is SS316. The length of the sheath is 11mm and thickness is 0.2mm. Find the time constant of the sheath. Material Q(kg/m3)s(J/Kg - °c)K(W/m-k) Platinum 21450 130 71.6 SS304 8030 500 21.4 SS316 7990 500 21.4 SS410 7750 460 24.9 Air 1.20 1005 0.025 MgO Powder 3580 877 26.8 Silicon compound 3210 800 3 Time constant of the bare material is, T=
A J- type thermocouple is used to measure the temperature in a heating process. Sheath material used is SS316. The length of the sheath is 11mm and thickness is 0.2mm. Find the time constant of the sheath. Material Q(kg/m3)s(J/Kg - °c)K(W/m-k) Platinum 21450 130 71.6 SS304 8030 500 21.4 SS316 7990 500 21.4 SS410 7750 460 24.9 Air 1.20 1005 0.025 MgO Powder 3580 877 26.8 Silicon compound 3210 800 3 Time constant of the bare material is, T=
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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Transcribed Image Text:A J- type thermocouple is used to measure the
temperature in a heating process. Sheath material
used is SS316. The length of the sheath is 11mm
and thickness is 0.2mm. Find the time constant of
the sheath.
Material
Q(kg/m3)s(J/Kg - °c)K(W/m-k)
Platinum
21450
130
71.6
SS304
8030
500
21.4
SS316
7990
500
21.4
SS410
7750
460
24.9
Air
1.20
1005
0.025
MgO Powder
3580
877
26.8
Silicon compound3210
800
Time constant of the bare material is, T=
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