Pressure recovery is an effect that occurs in gas and liquid flows. It concerns the conversion from both the speed of the fluid into pressure and into the inverse direction under ideal conditions. In fact, it is the consequence of one of the most fundamental physical laws (i.e. the law of conservation of energy). Although an air-cooled heat exchanger, the velocity of the air varies many times, pressure recovery effects have been hardly recognized up to now. This report aims to discuss the effects on air-cooled heat exchangers and the further impact of it on the dimensioning of axial air flow fans for those air-cooled heat exchangers.

05-06: Pressure Recovery Effects in Air-Cooled Installations


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