The disadvantage of this type of condenser is that the pressure drop is higher than in other types of direct-contact condenser.The Jet Condenser. Liquid is supplied to the top of the column and vapor is supplied to the bottom. (Flooding is an unstable condition when the vapor flow is such that the downward flow of condensate is interrupted and held up.).The Packed Column.Ī packed column may consist of tightly-packed metal rings to increase the interfacial area for heat transfer. It has the advantage of countercurrent flow of vapor and coolant, though care must be taken to avoid flooding. The vapor is supplied to the bottom of the column. This is similar to the spray condenser, except that the coolant is directed to flow over a series of trays in a column (see ).

It is important that the spray nozzles and vessel are designed to produce a fine spray of liquid (to give a large interfacial area for heat transfer), and a long enough residence time of liquid droplets in the vessel.The Baffled Column. The coolant is sprayed, using nozzles, into a vessel to which the vapor is supplied. Condenser Design Calculation Pdf Reader Pdf.