Engineering, 06.05.2020 03:22, ryrytkg5107

The initial temperature of a steel rod is 900oC and it is dropped into rapidly agitated oil at 315oC to quench it to martensite. Assume this follows first order system behavior. The temperature in the center of the rod is 500oC after 55 seconds. What is the thermal time constant of this cylinder and how long will it take to get to 320 oC?

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The initial temperature of a steel rod is 900oC and it is dropped into rapidly agitated oil at 315oC...