Application
The choice of liquid or gas as the fluid power medium is governed by the application requirements:
- Cost: pneumatics are considerably less expensive to build and operate. For one, air is used as the compressed medium, so there is no need to provide means to drain or recover fluid. With increasing working pressures, Hydraulics require larger parts than pneumatics.
- Precision: Unlike liquids, gases change volume significantly when pressurized making it difficult to achieve precision.
- Safety: Compressed gases tend to expand at high velocities when decompressed, thus pneumatics are typically limited in utilities with a working pressure up to around 100 psi (7 bar).
Read more about this topic: Fluid Power
Famous quotes containing the word application:
“The main object of a revolution is the liberation of man ... not the interpretation and application of some transcendental ideology.”
—Jean Genet (1910–1986)
“Science is intimately integrated with the whole social structure and cultural tradition. They mutually support one other—only in certain types of society can science flourish, and conversely without a continuous and healthy development and application of science such a society cannot function properly.”
—Talcott Parsons (1902–1979)
“I conceive that the leading characteristic of the nineteenth century has been the rapid growth of the scientific spirit, the consequent application of scientific methods of investigation to all the problems with which the human mind is occupied, and the correlative rejection of traditional beliefs which have proved their incompetence to bear such investigation.”
—Thomas Henry Huxley (1825–95)