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Pump data: general page

Pump device identifiers

  • Model and Manufacturer are identifiers which will appear in the pump choice lists.
  • Data source usually refers to the main parameter source (most often Manufacturer, may be an independent institute or your own measurements).
  • File name should have the extension '.PMP'. You can create a new pump device by changing the file name.

Electric side

Definitions related to the input of the pump device, considered as a black-box:

  • Define the motor type, especially regarding AC or DC mode.
  • Define the power converter type, if any.
  • Define the Nominal voltage (at nominal Head), and nominal (or maximum) powers at the three Head values specified in the hydraulic panel.
    • These nominal or maximal powers are not quite clearly defined. They will be used during the simulation as nominal values (absolute maximum ratings should be defined in the "detailed" parameter). Some data sheets specify nominal values, and maximal ones only for exceptional conditions.

NB: These voltage and power values are related to the pump motor itself in absence of converter, but to the converter inputs if present. if present.

Hydraulic side

You have to define:

  • The pump technology, especially whether centrifugal or positive displacement,
  • The pump Layout,
  • The Minimum head: usually the minimum head for which the manufacturer specifies data.

NB: A null Head at the pump with positive flowrate doesn't make much sense: it would mean that the flowrate is driven by other external forces. In this case, the efficiency is null.

  • The Maximum head: usually the maximum head for which the manufacturer specifies data. This doesn't act as an absolute limit: if the system operating conditions require higher heads, the model results will extend to the required value.
  • The Nominal head: this value is not well determined. It should correspond to the best suited head when using this pump. With centrifugal pumps, it could be chosen as the head with maximum efficiency. Otherwise it can be an intermediate value (rather toward higher values) between Min. and Max Heads.

When the model will be fully defined, the dialog will display the flowrates and efficiencies corresponding to these heads and their corresponding Nominal Power, as defined on the left "Electrical" panel.

NB: One of the reasons for introducing the "Nominal Head" is to determine a more refined "function" for the Nominal Power as a function of any Head, useful in the model. With HeadMin and HeadMax, it would be a straight line between these two values; this adds an intermediate point.