Difference between Jet Condenser and Surface Condenser?

Difference between direct contact and indirect contact condenser

Read: What is Jet condenser and Surface condenser - Advantages and limitations

Difference between direct contact and indirect contact condenser

Jet condenser
Surface condenser
Direct contact heat exchanger
Indirect contact heat exchanger
Simple design. Manufacturing cost and maintenance cost is low          
Manufacturing cost and maintenance cost is high
Mixing of vapour and condensing medium occurred
There is no mixing of vapour and condensing medium. They both separated by wall/surface
Condensate may get impure due to mixing. Condensate cannot recirculate to the system unless it is free from impurities.
Condensate is free from impurities. It can recirculate to the system without any purification treatment.
The cooling medium should be pure.
Since there is no mixing quality of cooling medium is not important.
Condensation is very fast. It requires less amount of condensing medium to condensate.
Condensation process is slow. Require a large amount of condensing medium to condensate unit amount of vapour.
It requires small floor space
It requires large floor space
It requires condensate extraction pump, the failure of this condensate pump leads to flooding of condenser.
Condensate extraction pump not required.
Low vacuum efficiency.
High vacuum efficiency.
It is less suitable for high capacity plants.
It is suitable for high capacity plant.

🔗Comparison between Air cooled and Water cooled condenser



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