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A boiler made from a polished brass plate, operate at a surface temperature of 135˚C, is...

A boiler made from a polished brass plate, operate at a surface temperature of 135˚C, is used to boil saturated water at 2.455 bars (2.04229 atm.):

  1. Estimate the operating heat flux for this boiler.
  2. Calculate the heat transfer coefficient.
  3. Show that the boiling is nucleate.
  4. If the boiler material is changed to polished copper (other conditions are the same), what will be the required operating flux for this new boiler?
Engineering   Mechanical-Engineering   
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