The results of a temperature jump test are shown below. At one hour, the temperature was suddenly increased from 950 K to 1000 K while holding the stress constant at 100 MPa. 30) Estimate the activation energy, Q, in the equation È = A o" ert R is the universal gas constant R = 8.31 J/(mole K) 0.004 0.0035 T= 1000 K 0.003 0.0025 0.002 0.0015 T= 950 K 0.001 0.0005 1000 2000 3000 4000 5000 6000 Time (s) Strain

The results of a temperature jump test are shown below. At one hour, the temperature was suddenly increased from 950 K to 1000 K while holding the stress constant at 100 MPa. 30) Estimate the activation energy, Q, in the equation È = A o" ert R is the universal gas constant R = 8.31 J/(mole K) 0.004 0.0035 T= 1000 K 0.003 0.0025 0.002 0.0015 T= 950 K 0.001 0.0005 1000 2000 3000 4000 5000 6000 Time (s) Strain

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.

Chapter9: Heat Transfer With Phase Change

Section: Chapter Questions

Problem 9.28P

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