For heat exchangers designed for multipass flows within the shell — for example, Tubular Exchanger Manufacturers Association standard shell types F, G and H — it is common to incorporate a longitudinal baffle plate within the tube bundle design. These plates direct the shell fluid flow in desired directions to increase the dwell time of the fluid while in contact with the tubes, thereby increasing the heat transfer effectiveness of the exchanger.
Safety is a concern at any industrial site. An Occupational Safety and Health Administration compliance specialist has stated that safety should be more than a priority: “Priorities in an organization can and usually do change. Safety and health need to be a core value of the organization.”1
Safety can be a case of values versus priorities. When it comes to sealing devices, perceived dangers sometimes are overlooked.
The case of an explosion at a refinery in Anacortes, Washington, shows how deadly accidents can occur when safety risks