Pressure hull (physics)

In the technical / physical context, a pressure body is understood to be a hollow body in which there is a difference between internal and external pressure during operation .

If a design-related maximum pressure difference is exceeded, an explosion occurs with excess pressure or an implosion with negative pressure .

Examples

• In the field of aviation and space travel is pressurized cabin used to provide comfort or survival in corresponding altitudes.
• In the maritime sector, the submarine is used as a vacuum body.
• To avoid decompression sickness in divers or construction workers, decompression chambers are used.
• In research and industry, clean rooms are operated with positive or negative pressure to prevent the ingress of dust or the escape of pathogens etc.
• In the field of process technology, pressure bodies are also used to influence melting and boiling points (e.g. desiccators ).
• With the help of the blower door test , a house is temporarily turned into a pressure vessel in order to examine it for leaks.
• Examples from the household are the pressure cooker (positive pressure) and the television tube (negative pressure).