Daily Archives: November 22, 2016

Double Walled Tube Heat Exchangers

ABOUT DOUBLE WALLED TUBE HEAT EXCHANGERS: Double walled tube has a purge passage coiled through the middle of the tube wall. The bi-walled tube should be used when the heat exchanger is part of critical equipment design or is primarily safety related. APPLICATIONS: When the exchanger is in contact with hazardous material i.e., cooling Tritium...

Plate and shell heat exchanger

About Plate and shell heat exchanger: A third type of heat exchanger is a plate and shell heat exchanger, which combines plate heat exchanger with shell and tube heat exchanger technologies. The heart of the heat exchanger contains a fully welded circular plate pack made by pressing and cutting round plates and welding them together. […]

Plate heat exchangers

OVERVIEW: Another type of heat exchanger is the Plate heat exchangers. These exchangers are composed of many thin, slightly separated plates that have very large surface areas and small fluid flow passages for heat transfer. Advances in gasket and brazing technology have made the plate-type heat exchanger increasingly practical. In HVCA...

Spiral heat exchangers

OVERVIEW: Spiral heat exchangers modification to the perpendicular flow of the typical HCHE involves the replacement of shell with another coiled tube, allowing the two fluids to flow parallel to one another, and which requires the use of different design calculations.These are the Spiral Heat Exchangers (SHE), which may refer to a helical (coiled)...

Helical-coil heat exchangers

OVERVIEW: Although double-pipe heat exchangers(Helical-coil heat exchangers) are the simplest to design, the better choice in the following cases would be the helical-coil heat exchanger (HCHE): The main advantage of the HCHE, like that for the SHE, is its highly efficient use of space, especially when it’s limited and not enough straight pipe...
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