Thermal heat-exchange surfaces are used on vessels for controlling temperature and quality of the contents of the vessel. Heat exchange surfaces can be designed for heating or cooling. Jacketed vessels are used in many industries and can be used to remove the elevated heat of reaction (heat reactor vessel) or reduce the viscosity of high viscous fluids.
Three basic types of external jacketed heat transfer surfaces are used: conventional jacket, dimple jacket and half-pipe jacket. External jackets are welded to the outside of the vessel. Internal coils also can be utilized as a stand-alone option or in combination with any of the other types of external jackets.