Tube layout, heat exchanger

Figure 3-5, Common tube layouts for shell-and-tube heat exchangers.

Shell and tube exchangers-most commonly used for all applications in the chemical and allied industries there are several advantages to this type of heat exchanger large surface area in a small volume, good mechanical layout, reliance on well-established fabrication techniques, wide range of... 

The layout of the heat exchanger tubesheet determines the number of tubes of a selected size and pitch that will fit into a given diameter of shell. The number of tubes that will fit the shell varies depending upon the number of tube-side passes and even upon whether there is a shell-side pass baffle that divides the shell itself into two or more parts. 

Heat Exchanger Tubesheet Layout Tube Count Table... 

Typical Shell and Tube Heat Exchanger Tube-sheet Layouts... 

This approach provides a preliminary specification for the heat exchanger. The actual heat exchanger will be restricted to standard tube lengths, tube layout and shell size. The preliminary design would then be adjusted up to meet standard size and layout specifications. 

At the first level of detail, it is not necessary to know the internal parameters for all the units, since what is desired is just the overall performance. For example, in a heat exchanger design, it suffices to know the heat duty, the total area, and the temperatures of the output streams the details such as the percentage baffle cut, tube layout, or baffle spacing can be specified later when the details of the proposed plant are better defined. It is important to realize the level of detail modeled by a commercial computer program. For example, a chemical reactor could be modeled as an equilibrium reactor, in which the input stream is brought to a new temperature and pressure and the... 

Fluid mechanics. Pump heads, rates, and power piping sizes column tray layout and sizing heat-exchanger tube and shell side bafliing and sizing... 

Heat Exchanger Tube Sheet Layout Count Tabic... 

Some of the preceding information can be presented in the form of suggestions, with an indication of the reasons for the particular choice. This would apply, in particular, to such items as fouling factors, tube layout, codes, and materials of construction. An example of a typical specification table for heat exchangers is presented in Fig. 2-6. 

Figure 4.2 Shell-and-tube heat-exchanger tube layouts. (Source Ref. 15.)...

A) Converter layout a) Catalyst b) Heat exchanger c) Cooling tubes d) Main gas inlet e) Vessel wall cooling gas inlet f) Temperature control gas (cold-shot) inlet g) Gas exit... 

Figure 3.20 shows a cylindrical layout often used for high-temperature SOFCs. Alternatives are a stack of planar cells or a disk concept with feed tubes in the centre. A consideration of efficient heat exchange is the cormnon design strategy for the high-temperature fuel cell geometry. 

H TYPICAL SHELL AND TUBE HEAT EXCHANGER TUBE-SHEET LAYOUTS... 

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