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Category > Applied Sciences Posted 02 May 2017 My Price 5.00

A 0.083-in-diameter electrical wire at 90°F is

A 0.083-in-diameter electrical wire at 90°F is covered by 0.02-in-thick plastic insulation (k = 0.075 Btu/h·ft·°F). The wire is exposed to a medium at 50°F, with a combined convection and radiation heat transfer coefficient of 2.5 Btu/h·ft2 ·°F. Determine if the plastic insulation on the wire will increase or decrease heat transfer from the wire

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Alpha Geek
(8)
Status NEW Posted 02 May 2017 06:05 PM My Price 5.00

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file 1493748594-answer1.docx preview (100 words )
A----------- 0.-----------083------------in------------di-----------ame-----------ter----------- el-----------ect-----------ric-----------al -----------wir-----------e a-----------t 9-----------0°-----------F i-----------s c-----------ove-----------red----------- by----------- 0.-----------02------------in------------thi-----------ck -----------pla-----------sti-----------c i-----------nsu-----------lat-----------ion----------- (k----------- = -----------0.0-----------75 -----------Btu-----------/hÂ-----------·ft-----------·Â-----------°F)-----------. T-----------he -----------wir-----------e i-----------s e-----------xpo-----------sed----------- to----------- a -----------med-----------ium----------- at----------- 50-----------°F-----------, w-----------ith----------- a -----------com-----------bin-----------ed -----------con-----------vec-----------tio-----------n a-----------nd -----------rad-----------iat-----------ion----------- he-----------at -----------tra-----------nsf-----------er -----------coe-----------ffi-----------cie-----------nt -----------of -----------2.5----------- Bt-----------u/h-----------·f-----------t2 -----------·Â-----------°F.----------- De-----------ter-----------min-----------e i-----------f t-----------he -----------pla-----------sti-----------c i-----------nsu-----------lat-----------ion----------- on----------- th-----------e w-----------ire----------- wi-----------ll -----------inc-----------rea-----------se -----------or -----------dec-----------rea-----------se -----------hea-----------t t-----------ran-----------sfe-----------r f-----------rom----------- th-----------e w-----------ire----------- A-----------nsw-----------er ----------- Th-----------ank----------- yo-----------u f-----------or -----------you-----------r i-----------nte-----------res-----------t a-----------nd -----------buy-----------ing----------- my----------- po-----------ste-----------d s-----------olu-----------tio-----------n. -----------Ple-----------ase-----------
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