# Pump efficiency for mp6

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Liquids: The maximum fluidic power is generated by a pump when operating it at half of the maximum flow rate and half of the maximum back pressure. Therefore, these operating conditions will be considered in the following:

Operating the mp6 micro pump with water at its maximum fluidic power, this equals a flow rate Q of 3,5 ml/min and a pressure p of 300 mbar. Multiplying flow rate and pressure yields a fluidic power of 1,76 mW. Assuming a total capacitance of 16 nF for the pump piezos, a maximum driving voltage of 250 V and a driving frequency of 100 Hz the electrical power consumption of the pump is 50 mW. This equals a pump efficiency of about 3,5 %.

Gases: Operating the mp6-gas micro pump with air at its maximum fluidic power this equals a flow rate Q of 10 ml/min and a pressure p of 50 mbar. Multiplying flow rate and pressure yields a fluidic power of 0,75 mW. Assuming a total capacitance of 16 nF for the pump piezos, a maximum driving voltage of 250 V and a driving frequency of 300 Hz the electrical power consumption of the pump is 150 mW. This equals a pump efficiency of about 0,5 %.

Kategorie: mp6