pressure drop


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pressure drop

[′presh·ər ‚dräp]
(fluid mechanics)
The difference in pressure between two points in a flow system, usually caused by frictional resistance to a fluid flowing through a conduit, filter media, or other flow-conducting system.

pressure drop

The decrease in fluid pressure between two ends of a duct or pipeline, between two points in a system, across valves and fittings, etc., due to frictional losses; in a water-piping system a drop in fluid pressure also occurs between two points as a result of the difference in elevation between the two points.
References in periodicals archive ?
This can be done with chemical sensors, (4) but a more common method uses pressure drop across the filter (see, for example, Reference 5).
The system will appear as if there is a lack of air pressure but the real problem is pressure drop, which will cause excessive energy consumption.
The DPF is a significant contributor on the pressure drop due to the soot and ash accumulation.
Increasing the size of a pipe from two to three inches can reduce pressure drop up to 50%.
The pressure drop prediction of multiphase flow is the important theoretical basis of oilgas well design and analysis.
So, as it can be seen in Figure 3, structured packing have less pressure drop in comparison with random packing such as Raschig rings (Fig.
Correctly sizing the pipework at this stage is critical to ensuring the pressure drop across the system--from the discharge at the compressor house to the point-of-use--is no more than 0.
The major disadvantages of the conventional shell-and tube heat exchangers with segmental baffles are large shell-side pressure drop, a dead zone forming in each compartment between two adjacent segmental baffles, leading to an increase of fouling resistance and the dramatic zigzag flow pattern causes high risk of vibration failure on tube bundle.
In this design, the expectation is that the helical flutes will produce a certain amount of pumping, resulting in a lower pressure drop and some degree of self-cleaning action.
Calculation of pressure drop in secondary cooling circuit Pressure drop in secondary cooling circuit can be determined by:
Then, in the premise of guarantee that the physical parameters and boundary conditions of the above media are the same, four numerical simulations are carried out to obtain the piezometric pressure drop between the inlet and outlet.