A polished copper sphere of 10-mm diameter, initiallyat a
Chapter 10, Problem 10.38(choose chapter or problem)
A polished copper sphere of 10-mm diameter, initiallyat a prescribed elevated temperature Ti, is quenched in asaturated (1 atm) water bath. Using the lumped capaci-tance method of Section 5.3.3, estimate the time for thesphere to cool (a) from Ti?130?C to 110?C and (b)from Ti?550?C to 220?C. Make use of the averagesphere temperatures in evaluating properties. Plot thetemperature history for each quenching process.
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