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where
| LaTeX Math Inline |
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| body | --uriencoded--F(q, p_%7B\rm in%7D) |
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is called pump characteristic curve.
The power consumpotion is given by:
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| anchor | eta_pump |
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| alignment | left |
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W(q,p) = \eta(q) \cdot q \cdot (p-p_{\rm in}) |
where
In most practical cases pump characteristic curve has negligible dependence on intake pressure
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| body | --uriencoded--p_%7B\rm in%7D |
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:
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| Fig. 1. Pump Characteristic Curve |
A popular pump proxy model is given by:
| LaTeX Math Block |
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| anchor | q_pump |
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| alignment | left |
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q = \frac{q_{\rm max}}{2 \cdot k_f} \cdot \left[ -(1- k_f) + \sqrt{ (1 + k_f)^2 - 4 \cdot k_f \cdot (p- p_{\rm in})/p_{\rm max}) \ } \right] |
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\eta(q) = 4 \, \eta_{\rm max} \cdot q/q_{\rm max} \cdot ( 1 - q/q_{\rm max}) |
See also
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Natural Science / Engineering / Device / Pump
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