Condensation character of a stratified flow inside a horizontal tube

Parametric distributions of a horizontal-tube falling film evaporator for desalination

“…. ; N len (11) where T c;inlet is the inlet steam temperature of tube bundle and Dp c;total;1;1 represents the total pressure drop between inlet and outlet of the first tube. Within the range of Re st < 30,000, 20 m/s < v st < 80 m/s, 0 < x < 1 and 0.16 kg/m 3 < q st < 0.65 kg/m 3 , Eq.…”

“…The total steam pressure drop of the first tube Dp c;total;1;1 is calculated at the very beginning as Dp c;total;initial and it serves as a boundary condition for the calculation of the rest of tubes which is illustrated in Eq. (11). For every unit volume, the values of three modules are updated in each loop.…”

“…For the condensation heat transfer inside a horizontal tube, previous scholars have carried out investigation on the flow pattern or the heat transfer performance based on the flow patterns inside circular tubes [6][7][8]. Among the various steam flow patterns inside the circular tubes, the stratified flow pattern [9][10][11] is commonly studied for the application in MED systems considering the relatively lager tube inside diameter and smaller steam inlet velocity applied in the systems. Falling film evaporation on a tube bundle, compared with a single tube, shows complexities because of the liquid splash or intertube evaporation.…”

Characteristic study of steam maldistribution in horizontal-tube falling film evaporators

“…The condensation heat transfer coefficient inside tube was correlated trough the experimental data of Shen et al [19]:…”

Effect of design parameters on thermodynamic losses of the heat transfer process in LT-MEE desalination plant

“…Two experiments were carried out to study the flow resistance of steam crossing a horizontal falling-film tube bundle and condensing inside a tube, respectively, which were introduced in the work of Shen et al [16][17][18]. Empirical correlations were obtained based on the data from those experimental studies with each correlation coinciding with the heat transfer and flow performances of individual experimental results.…”