Condensation Heat Transfer — Lesson 3

This lesson covers study of two-phase flow and heat transfer, focusing on condensation heat transfer. It explains the basic difference between drop wise and film condensation and how to predict the heat transfer coefficient in drop wise condensation. The lesson also elaborates on the mechanisms of droplet interactions during drop wise condensation and how to evaluate the condensate rate and the profile of the film over a vertical surface. For instance, it discusses how the temperature and velocity profiles change when film condensation occurs over a vertical surface.

Video Highlights

01:13 - Condensation and its classification.
05:27 - Heat transfer in case of drop-wise condensation.
06:34 - Different stages of droplet evolution during drop-wise condensation.
08:26 - Film-wise condensation and how it is distinguished from drop-wise condensation.
10:38 - Predicting condensate rate and the nature of the film in film condensation.
19:33 - Discussion on Nusselt's analysis.

Key Takeaways

- The lesson explains the basic difference between drop wise and film condensation.
- It provides methods to predict the heat transfer coefficient in drop wise condensation.
- The lesson elaborates on the mechanisms of droplet interactions during drop wise condensation.
- It explains how to evaluate the condensate rate and the profile of the film over a vertical surface.
- The lesson discusses how the temperature and velocity profiles change when film condensation occurs over a vertical surface.