What is the most basic design of a water-cooled condenser?

• A. Liebig Condenser
• B. Foster condenser
• C. Allihn condenser
• D. Dimroth condenser

Answer: (A)

Condensation relies on transferring heat from the vapor to a cooling medium, which is most effectively done with a simple surface area. The most basic water-cooled condenser is a straight inner tube contained by a surrounding water jacket. Vapor travels along the inner tube and, as heat flows through the glass to the cooling water in the jacket, it condenses on the outside surface and drips down. The water typically flows from bottom to top to maintain steady cooling and prevent air pockets. Because there are no extra features to boost surface area, this straight design is the simplest form of a water-cooled condenser. The other designs add bulges, coils, or fins to increase surface area and improve condensation efficiency for tougher conditions, but the straight Liebig condenser is the foundational, most basic option.