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Advantages of various Heat exchangers - Shell/tube and plate type

sketch-plate-type-heat-exchanger
Sketch tube type heat exchanger

Sketch of a shell type heat exchanger The sketch shows a tube/shell type cooler that could be used as a main engine jacket water cooler. The cooler shown is of the two pass type, the jacket water being cooled, coming in contact with the outer side of the tube stack, and the shell surface. Baffles are used to direct the flow of jacket water through the cooler, and also support the tube stack. Seawater, being the cooling medium, is in contact with inside of the tubes.

Materials used in the construction of the cooler are as follows: Shell cast iron or fabricated steel waterboxes fabricated from mild steel, their insides coated with rubber or anodes placed for protection against corrosion tubes these are made from aluminium brass or cupro nickel tube plate made from naval brass to allow for thermal expansion, one end of the stack is fixed, while the other is free to move to allow for expansion.
sketch-plate-type-heat-exchanger
Plate type heat exchanger

This sketch shows a plate type heat exchanger. It consists of a variable number of gaskets and plates, clamped together between a frame and a pressure plate. The surface of the plates are corrugated in a herring bone style to give extra strength and a larger cooling surface area.

The principle advantages of a plate type heat exchanger are: The principle advantages of a tube type heat exchanger are: Tubes are fixed in a condenser by being packed at both ends, expanded at the inlet and packed at the other or expanded at both ends.

Materials used in condenser construction are: 10. Tubes are fixed in a condenser by: Being packed at both ends expanded at the inlet and packed at the other expanded at both ends.


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