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MMLU-Pro / 11787 / Steam condenses on the outside of a pipe, while cool wa-ter flowsinside it. The…

Problem

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question

Steam condenses on the outside of a pipe, while cool wa-ter flowsinside it. The bulk mean water temperature is 65°F, andthe water side coefficient of heat transfer is 300 Btu/hr-ft^2-°F.The steam is at a pressure of 3 in. Hg abs., andthe steam side coefficient of heat transfer is 1,500 Btu/hr-ft^2-°F.The pipe is a 3/4 in. 18-gage standard size, and it is made of brass. If the thermal conductivity of brassis 66 Btu/hr-ft-°F, calculate the mass flow rate of steamcondensed per unit length of pipe.

category

engineering

options

  1. 4 lbm/hr-ft
  2. 3.5 lbm/hr-ft
  3. 2.11lbm/hr-ft
  4. 3lbm/hr-ft
  5. 0.75 lbm/hr-ft
  6. 1.25 lbm/hr-ft
  7. 1.85 lbm/hr-ft
  8. 1.5lbm/hr-ft
  9. 2.5lbm/hr-ft
  10. 2.8 lbm/hr-ft

src

stemez-HeatTransfer

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