Q2/ An aluminum sphere weighting 7kg and initially at a temperature of 533K is suddenlyimmersed in a fluid at 283K. if heat transfer coefficient between the sphere and fluid is50W/m?.°C. Take density=2707kg/m3, specific heat=0.9KJ/kg.°C and thermalconductivity= 204W/m °C.إجابت* Determine the Bi number0.006960.0006960.00520.000520 أخری*.Determine the time required to cool sphere to 263K26.28min262.8min52.56 min525.6 minO أخری

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Q2/ An aluminum sphere weighting 7kg and initially at a temperature of 533K is suddenly immersed in a fluid at 283K. if heat transfer coefficient between the sphere and fluid is 50W/m?.°C. Take density=2707kg/m3, specific heat=0.9KJ/kg.ºC and thermal conductivity= 204W/m°C.

Q2/ An aluminum sphere weighting 7kg and initially at a temperature of 533K is suddenly immersed in a fluid at 283K. if heat transfer coefficient between the sphere and fluid is 50W/m?.°C. Take density=2707kg/m3, specific heat=0.9KJ/kg.ºC and thermal conductivity= 204W/m°C.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter8: Natural Convection

Section: Chapter Questions

Problem 8.36P

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Question

Q2/ An aluminum sphere weighting 7kg and initially at a temperature of 533K is suddenly
immersed in a fluid at 283K. if heat transfer coefficient between the sphere and fluid is
50W/m?.°C. Take density=2707kg/m3, specific heat=0.9KJ/kg.°C and thermal
conductivity= 204W/m °C.
إجابت
* Determine the Bi number
0.00696
0.000696
0.0052
0.00052
0 أخری
*.Determine the time required to cool sphere to 263K
26.28min
262.8min
52.56 min
525.6 min
O أخری

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Q2/ An aluminum sphere weighting 7kg and initially at a temperature of 533K is suddenly immersed in a fluid at 283K. if heat transfer coefficient between the sphere and fluid is 50W/m?.°C. Take density=2707kg/m3, specific heat-0.9KJ/kg.°C and thermal conductivity= 204W/m °C.
Q2/ An aluminum sphere weighting 7kg and initially at a temperature of 533K is suddenly immersed in a fluid at 283K. if heat transfer coefficient between the sphere and fluid is 50W/m?.°C. Take density=2707kg/m3, specific heat=0.9KJ/kg.ºC and thermal conductivity= 204W/m°C. Determine th Bi number and And determine the time required to cool sphere to 263k
LTE !!:: خاص A docs.google.com Q2/ An aluminum sphere weighting 7kg and initially at a temperature of 533K is suddenly immersed in a fluid at 283K. if heat transfer coefficient between the sphere and fluid is 50W/m?.°C. Take density=2707kg/m3, specific heat=0.9KJ/kg.°C and thermal conductivity= 204W/m °C. Your answer Determine the Bi number 0.00696 0.000696 0.0052 0.00052 Other: Determine the time required to cool sphere to 263K. * 26.28min 262.8min 52.56 min 525.6 min Other: 2 Request edit access Submit
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