Two phase heat transfer correlation for the slug to annular flow regimes

Two phase heat transfer correlation for the slug to annular flow regimes. Successful design of heat exchanger such as evaporator requires accurate prediction of the local heat transfer coefficient for boiling regime. Investigations of two phase heat transfer in horizontal pipe flow have led to a new correlation for the heat transfer coefficient. The proposed correlation is: NuTP=2,90 [Re]0,82 [Pr]0,78 [Bo]0,62. This correlation was tested and experimental data obtained on covering the slug to annular flow regimes. The correlation produces satisfactory results. (author). 7 figs.; 14 refs