Jacketed vessels design

Reactors, columns and other vessels are usually designed as special items for a given project. In particular, reactor designs are usually unique, except where more or less standard equipment is used such as an agitated, jacketed, vessel. 

This group normally operates under low shear conditions and is broken down by impeller design and movement. Design can also include a jacketed vessel to facilitate heat transfer. 

Garvin, J. (1999), Understand the thermal design of jacketed vessels, Chem. Eng. Prog., 95(6), 61-68. 

In summary, because of the uncertain effect of system geometry, it is recommended that for purposes of estimation or design Table VI should be used to select a correlation which was developed from tests on a system as similar as possible to the one under consideration. For jacketed vessels using paddle agitators the correlation of Pursell is indicated. For other jacketed vessels or for the case of helical coils... 

Garvin, J., Understanding the Thermal Design of Jacketed Vessels, Chem. Eng. Progr.,95, 6,61, 1999. 

Some dryers also provide heat energy to the powder mass by a jacketed vessel, thereby increasing overall heat transfer. Moisture can be removed via vacuum or hot air fluidization depending on the design of the dryer allowing for improved evaporative drying and vapor mass transfer. Fig. 13 shows the relationship between power input (W) and first-order drying rate constant in a microwave fluid-bed processor. ... 

Fig. 1.2 Design of the vessel wall for heat transfer [102]. A - Jacketed vessel... 

The drying here is achieved by means of exposing the product to the surface area of the jacketed vessel. The jacket is a shell of metal (usually carbon steel) welded onto a stainless steel vessel body. This design can include a heated shaft for increased surface area exposure. The heat transfer medium used here is generally steam, hot oil, or hot water. Ports must be provided so as to vent the evaporated vapors being removed from the product. 

If it is difficult to provide a level tap in the base of the vessel (for mechanical design reasons, for example, in a glass-lined or jacketed vessel), a bubble tube can... 

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