EML4147C Test 1A Fall 2010

EML4147C Test 1A Fall 2010 - EML 4147C Test 1 Open book,...

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EML 4147C Test 1 Open book, closed notes Name ____________________ Page 1 of 1 I am graduating in ______________ (Fall, Summer, or Spring) of ______________ (2010, 2011). I plan to attend graduate school at UF in the Spring of 2011. Yes__________ No__________ "On my honor, I have neither given nor received unauthorized aid on this test." Signature __________________________ A heat recovery device involves transferring energy from hot air passing through an annular region to pressurized water flowing through the inner tube of the annulus in a counter flow configuration. The inner tube has inner and outer diameters of 24 and 30 mm and is connected by eight struts to an insulated outer tube of 60-mm diameter. Each strut is 3 mm thick and is integrally fabricated with the inner tube from carbon steel (k = 50 W/m·K). Consider conditions for which water flows through the inner tube at 0.17 kg/s entering at 400 K and exiting at 500 K. Air flows through the annulus in the opposite direction entering at 900 K and exiting
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EML4147C Test 1A Fall 2010 - EML 4147C Test 1 Open book,...

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