Tag Archives for heat exchanger

Fired Heater Design

Direct-fired combustion equipment is that in which the flame and/or products of combustion are used to achieve the desired result by radiation and convection. Common examples include rotary kilns and open-hearth furnaces. Indirect-fired combustion equipment is that in which the … Continue reading

15. September 2009 by and
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Plate and Frame Exchangers

Plate-and-frame exchangers are an arrangement of gasketed, pressed metal plates aligned on carrying bars and secured between two covers by compression bolts. The pressed metal plates are corrugated in patterns to provide increased surface area, to direct the flow in … Continue reading

15. September 2009 by and
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Double Pipe Heat Exchangers

A double-pipe exchanger is made up of one pipe containing the tube fluid concentric with another pipe, which serves as the shell. The tube is often finned to give additional surface area. The double-pipe exchanger was developed to fit applications … Continue reading

15. September 2009 by and
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Shell and Tube Heat Exchanger Sizing

The required heat duty, film coefficients, conductivity, etc. for a shell and tube heat exchanger can be calculated using the procedures in Heat Transfer Theory, Approximate U-values are given in Table 2-8. In the basic heat transfer equation it is … Continue reading

15. September 2009 by and
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TEMA Glasses and Tube Materials

TEMA standards provide for two classes of shell and tube exchanger qualities. Class C is the less  stringent and is typically used in onshore applications and where the temperature is above ~20°F. Class R is normally used offshore and in … Continue reading

15. September 2009 by and
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Heat Exchanger Placement of Fluid

The question always comes up of which fluid to put in the tubes and which fluid to put in the shell. Consider placing a fluid through the tubes when: 1. Special alloy materials are required for corrosion control and high … Continue reading

14. September 2009 by and
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Heat Exchanger Types

There are many different arrangements of the shells, tubes and baffles in heat exchangers. Figure 3-6 is a list of TEMA standard classifications for heat exchangers, which helps to describe the various options. Theseare best understood in conjunction with the … Continue reading

14. September 2009 by and
Categories: Shell and Tube Exchangers | Tags: | Leave a comment