Hydraulic Resistance of Impinging Stream Devices

Gas-continuous impinging streams involve flows at high velocity, and so power consumption naturally becomes an important concern [62]. As is well known, the theoretical or minimum work per unit time for fluid transportation is equal to the product of the pressure drop and the volumetric flow rate of the fluid  

Because of the very small density of gas, in most processes of practical interest the volumetric flow rates of gases, V , are very large. Therefore the hydraulic resistance, or the pressure drop, of the device to be employed has a crucial influence on the total power consumption. 

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