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Shell and tube heat exchangers are a common type of heat exchanger used in various industries. Within this category, two primary designs stand out: floating head and U-tube. Each design has its own advantages and disadvantages, making it suitable for specific applications.
A natural draft air cooler typically consists of a tall, tower-like structure with a large number of finned tubes. The hot process fluid flows through the tubes, and the heat is transferred to the surrounding air. The heated air rises due to natural convection, drawing in cooler air from the surroundings.
Induced draft air coolers are a type of air-cooled heat exchanger that uses fans to draw air across the finned tubes. This design offers several advantages over forced draft air coolers, including quieter operation and lower energy consumption. In an induced draft air cooler, the fans are located on the outlet side of the tube bundle
A forced draft air cooler typically consists of a bundle of finned tubes arranged in a specific configuration. The process fluid flows through the tubes, while air is forced across the fins by fans. The heat from the process fluid is transferred to the air, which is then dissipated into the atmosphere.
Air-cooled heat exchangers typically consist of a bundle of tubes through which the process fluid flows. Fins are attached to the tubes to increase the surface area for heat transfer. Air is forced or drawn across the finned tubes, removing heat from the process fluid.