API Gravity is a measure of how heavy or light a petroleum liquid is compared to water. It is a scale developed by the American Petroleum Institute (API) to quantify the density of crude oil and other liquids. API Gravity ...

Surging in a compressor, particularly in centrifugal and axial compressors, refers to a condition where there is an unstable flow of air or gas through the compressor. This phenomenon occurs when the flow rate falls below ...