Pressure energy is a result of the application of pressure on a fluid, either water, oil, gas or any other fluid. The above type of energy is in most cases derived from other forms of energy and hence can be termed as a derived quantity other than a fundamental one. Generally, pressure can be achieved through the division of force exerted by a given substance to the area occupied. The above means energy of a substance whose pressure is to be obtained divided by its volume.
There are different types of energy that pressure energy manifests itself in. The types of energy in which pressure is a factor are hence a resultant of converting one form of energy to another. Sometimes, the given forms of energy are either useful such as in the case of generation of hydroelectric power and in other cases are destructive such as in the case of accumulated pressure energy of water behind a dam, hence causing its weakening and possibly failure (Javanmardi, Léger & Tinawi, 2005).
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Piezoelectric generators, for example, are an example of a utility tool that is used in the conversion of pressure energy of different forms into electric energy (Sodano, Inman & Park, 2004).Besides the above, Potential energy used in the turning of turbines so as to generate hydroelectric power is largely depended on the amount of pressure generated by the falling water. The pressure inherent in the water is hence used to turn turbines and consequently produces hydroelectric power (Paish, 2002). Closely related to the above, kinetic energy is also a factor that results from the pressure of a moving fluid. Besides the above, pressure energy is realized in small scale in systems such as water or oil supply. The above is utilized to ensure the fluid is delivered in the correct measure. By constricting a section of a pipe, for example, it is possible to generate pressure energy to propel a fluid through a given distance.
References
Javanmardi, F., Léger, P., & Tinawi, R. (2005). Seismic water pressure in cracked concrete gravity dams: experimental study and theoretical modeling. Journal of Structural Engineering , 131 (1), 139-150.
Paish, O. (2002). Small hydro power: technology and current status. Renewable and sustainable energy reviews , 6 (6), 537-556.
Sodano, H. A., Inman, D. J., & Park, G. (2004). A review of power harvesting from vibration using piezoelectric materials. Shock and Vibration Digest , 36 (3), 197-206.
