LAB REPORT 2.docx - BLDG 365-VK-X LAB REPORT 2 40104662...

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BLDG 365-VK-XLAB REPORT 2401046622020-1-30
Objective(s)In this experiment, we'll show you how to find the heat coefficient and theNusselt’s number and the heat coefficient.IntroductionThe heat exchange between the surface of the object and the flowing gas iscalled convection heat.Free convection is caused by the difference in density or temperature. In thisexperiment We create the temperature difference and density difference ofthe fluid in the instrument by heating the temperature at the bottom of theapparatus Transfer the hot fluid from the bottom of the instrument to the top.The heat transfer coefficienthccan be calculated by:hc=´QAs×TmTmis calculated by:Tm=ToutT¿log(TsT¿TsTout)Nusselt Number (Nu) is the ratio of convective to conductive heat transferacross a boundary and is found by:Nu=hc× LKairMaterialsThe Free and Forced Convection ApparatusProcedure1
Test 11)Make sure the pipe is completely vertical.2)set the air speed to 0 m/s.

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Term
Fall
Professor
N/A
Tags
Heat Transfer, 5mm, 1mm, 2 K, 4 79W, 5 42W

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