Film wise And Dropwise Condensation And Boiling

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Film wise And Dropwise Condensation And Boiling

Model No: AET-11
  • Heating and condensing takes place inside a partially filled glass vessel. 
  • A heater coil heats the water.
  • The temperature of the wire reaches significantly higher than 100°C.
  • Students watch the boiling process and note the different boiling processes.
  • For boiling heat transfer experiments, students adjust the current in a resistant wire heater element in the water.  

 

These include:

Subcooled boiling: where small bubbles form and rise. Nucleate boiling: where large bubbles form and rise. Film boiling: unstable and stable, where a vapour blanket forms and heat transfer by radiation becomes important. For condensing heat transfer experiments, water condenses on two water-cooled vertical cylinder specimens.  The cooling water flow rate and its temperature change at each cylinder helps students to find the heat transfer.