Tag Archives: SI

Energy and Calories

The latter is an obsolete unit for energy anyway. The SI unit is Joules. 1 J = 1 N * 1 m = 1 kg * 1 m²/s² = etc etc – see that’s the whole idea of the SI … Continue reading

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Pump Power

There’s been some discussion of pump power. It is extremely easy to calculate it when using SI units. A flow front in a tube has a power: W power, F force, v speed. The force is Where A is cross … Continue reading

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