Total Pressure

Definition - What does Total Pressure mean?

Total pressure is the sum of static pressure and velocity pressure. Static pressure exists in a non-moving fluid while velocity pressure is the pressure needed to accelerate air from zero velocity to a certain velocity that is proportional to the air stream kinetic energy. Total pressure on an immersed surface can be described as the total pressure that is exerted by a liquid on that surface. The direction of the immersed surface can be vertical, horizontal or inclined.

Petropedia explains Total Pressure

Testing for total pressure has been utilized to simulate various types of corrosive settings that are commonly seen in different types of commercial and industrial processes. Prior to initiating the testing, the solubility sources and vapor pressure must meet certain test constituents. By doing so, accidental overpressurization of test subjects can be prevented.

In testing for corrosion in industrial settings that utilize water or gas pressures, there are cases whereby higher levels of test pressures can be gained through the pumping action of either corrosive or inert gas into vessels that make use of a specialized gas pump. This depends on the situation being replicated.

The importance of determining the pressure factors in this type of corrosion testing is typically identified by the total and partial pressure. Commonly, corrosive effects are found in high-pressurized environments, so these should be subjected to thorough testing to effectively manage the possible corrosive effects.

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