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In the pulsed pumping mode of operation, periodic rather than continuous pumping is used.
An optimized actuation scheme referred to as gas pumping mode is proposed for the transport of gas.
While one cylinder is put in pumping mode, the other cylinder is in receiving mode that way nearly continuous flow could be maintained.
Then the optimization criterion is proposed to select the appropriate pumping mode from a large number of combinations of pumping system parameters.
Tuft visualization clearly shows that, as the instability evolves, the flow in a given distributor channel suddenly stalls and switches to reverse pumping mode in periodic way.
Moreover, PSHPP plays an important role in providing power factor correction and voltage regulation in the generating or pumping mode and they can also operate unloaded as synchronous condensers, thus enhancing the electrical power system stability.
Similar(47)
Similarly, three pumping modes are modelled: constant flow; counterpulsation and copulsation.
Choice of water pumping modes (suction or forced mode) depends on the water source to be pumped and the related technical feasibility.
Particularly, the proposed MILP model takes into account the hydraulic heads of PSUs for generating and pumping modes through linear methods of operation point selection.
An optimization objective function is set up to rate the available pumping modes and it is programmed as a function of the design variables and operational parameters.
The bottom impeller was chosen from two radial flow type impellers of half-elliptical-blade disk turbine (HEDT) and parabolic-blade disk turbine (PDT), and the upper two impellers were chosen from four axial flow type impellers with different blade widths and pumping modes, forming five different triple-impeller combinations: HEDT + 2WHU, HEDT + 2WHD, PDT + 2WHD, PDT + 2CBYW, and PDT + 2CBYN.
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CEO of Professional Science Editing for Scientists @ prosciediting.com