Pool Boiling: Heat Transfer Regimes

This lecture introduces the concept of pool boiling, highlighting the differences between boiling and evaporation. It covers the determination of boiling heat transfer coefficients, the different regimes of pool boiling, and the experiments conducted by Nukiyama in 1934. The lecture also discusses critical heat flux, bubble interference, and the Leidenfrost point. Various heat transfer regimes, including natural convection, nucleate boiling, transition boiling, and film boiling, are explained in detail, along with their respective characteristics and heat flux variations. The stability of transition boiling is analyzed through wire energy balance equations and linear ODE solutions, emphasizing the importance of understanding the behavior of boiling heat transfer regimes.