Pressure drop measurements in a 15 row staggered configuration condenser, p/D=1.33, are described. Heat flux densities of up to 90 kW·m-2 were used. The results are compared with the those of another investigation using a condenser with much less closely packed tubes. At relatively low suction, pressure drop in the closely packed condenser could be predicted by conventional single phase correlations. At higher values of suction the condensing pressure loss was considerably lower in this condenser than the single phase value. In the more loosely packed condenser this difference occurred at all values of suction. It is concluded that more experimental and theoretical work is required to explain these effects in view of their importance in turbine condenser design. © 2001 Éditions scientifiques et médicales Elsevier SAS.
- Pressure drop
- Steam condensers