The maximum and minimum local coefficients were observed at the azimuthal angles of 0° and 180°, respectively, in saturated water. The locations of the maxima and the minima were dependent on the inclination angle of the tube as well as the degree of subcooling. The major heat transfer mechanisms were considered to be liquid agitation generated by the sliding bubbles and the creation of big size bubbles through bubble coalescence. As a way of quantifying the heat transfer coefficients, an empirical correlation was suggested. | Variation of local pool boiling heat transfer coefficient on 3-degree inclined tube surface
