meen1210_pset05

meen1210_pset05 - MEEN1210 Dr. Matthew J. Traum Mechanical...

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Unformatted text preview: MEEN1210 Dr. Matthew J. Traum Mechanical & Energy Engineering Practice II University of North Texas (UNT) Spring Semester 2008 Problem Set 5 Due: Thursday, April 10, 2008 @ 4pm Two experiments were performed in class by Dr. Traum on 3/27/2008. In Experiment #1, two temperature measurement devices (thermocouples) were placed between layers of tissue in two identical dishes [Figure 1]. A fan blew ambient air over these dishes. At the same moment, one dish was infused with ethanol while the second dish was infused with de-ionized water. Temperature in each dish as a function of time was recorded while ambient temperature was monitored. In Experiment #2, a beaker of ice (generated by freezing tap water) of prescribed mass was placed upon a hot-plate [Figure 2]. Embedded within the ice was a temperature measurement device (a thermocouple) weighed down by being wrapped around a heavy metal screw. A second thermocouple was placed in intimate thermal contact with the surface of the hot plate. The hot plate was allowed to reach steady-state intimate thermal contact with the surface of the hot plate....
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This note was uploaded on 05/14/2008 for the course MEEN 1210 taught by Professor Traum during the Winter '07 term at North Texas.

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meen1210_pset05 - MEEN1210 Dr. Matthew J. Traum Mechanical...

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