{"id":2666,"date":"2024-03-06T12:12:44","date_gmt":"2024-03-06T11:12:44","guid":{"rendered":"https:\/\/www.bf-hydraulik.com\/encyclopedia\/calculate-pressure\/"},"modified":"2026-04-15T10:57:16","modified_gmt":"2026-04-15T08:57:16","slug":"calculate-pressure","status":"publish","type":"encyclopedia","link":"https:\/\/www.bf-hydraulik.com\/en\/calculate-pressure\/","title":{"rendered":"Calculate Pressure"},"content":{"rendered":"\t\t
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Calculate Pressure: Potential Energy in Hydraulics<\/h1>

The law of conservation of energy<\/a> is one of the most fundamental theorems in physics. Simply put, the law of conservation of energy<\/a> states that energy is not lost, but is always only converted. <\/p>

A distinction is made between stored “potential energy” and released “kinetic energy”.<\/p>

A load located at a certain height, for example, has the potential energy of its mass (m), multiplied by the gravitational acceleration (g) and the height (h). <\/p>

m·g·h<\/strong><\/p>

When this mass falls down, it releases the energy ½ m·v² in the form of motion.<\/p>

Different formulas apply to other physical situations such as heat or light release, expansion of an explosion, or motion in hydraulic system<\/a>s. However, the basic assumption is always the same: The released energy always corresponds in total to the energy that was previously stored. <\/p>

What is Hydraulic Pressure Energy?<\/h2>

Hydraulic pressure<\/a> energy is the potential, i.e., stored energy that acts in a hydraulic system<\/a>. Since liquids are not compressible, it is not possible to store the energy in the system itself. The pressure in hydraulic system<\/a>s is therefore always supplied from outside. Typically, this is the kinetic energy of the hydraulic pump<\/a>. For emergency and backup modules, other pressure accumulators are also available. These operate with spiral springs or with compressed gases. <\/p>

Hydraulic Pressure as Potential Energy<\/h3>

Pressure is fundamentally a force acting on a surface. The formula is accordingly
Pressure (p) equals force (F) divided by area (A) <\/p>

p = F\/A<\/strong><\/p>

It follows that: The smaller the area, the greater the pressure. To design a hydraulic system<\/a>, two key parameters are therefore important: <\/p>