@article{Szychta_Szychta_2019, author = {Szychta, Elzbieta and Szychta, Leszek}, title = {Variable Rotational Speed Control System of Sewage Pumping Station}, journal = {TransNav, the International Journal on Marine Navigation and Safety of Sea Transportation}, volume = {13}, number = {2}, pages = {343-346}, year = {2019}, url = {./Article_Variable_Rotational_Speed_Control_Szychta,50,905.html}, abstract = {Cascade and variable rotational speed control systems of sewage pumping stations are compared in this article. The range of pump efficiency variations and potential for breakdowns are adopted as criteria. A pumping station including two or three pumps is analysed. A control system at a variable rotational speed and maximum sewage level is presented. Properties of a cascade control system and a system at a maximum head of sewage are compared using the example of any pump performance chart.}, doi = {10.12716/1001.13.02.10}, issn = {2083-6473}, publisher = {Gdynia Maritime University, Faculty of Navigation}, keywords = {Hydrodynamics, Speed Control, Speed Control System, Pumping Station, Sewage Pumping Station, Speed Control, Speed Control System, Pumping Station, Sewage Pumping Station, Hydrodynamics, Pump Efficiency, Control System, Pump Performance Chart} }