### Head Rise and the Energy Equation - for Pump or Fan

2021-5-7 · Actual Head Rise of a Pump or Fan. Using the Energy Equation the head rise through a pump or fan can be expressed as:. h a = (p 2 - p 1) γ + (h 2 - h 1) + (v 2 2 - v 1 2) 2 g (1). where. h a = actual head rise (m fluid column) . p = pressure (Pa, N/m 2). h = elevation (m). γ = ρ g = specific weight of fluid (N/m 3) . v = velocity (m/s). ρ = density of fluid (kg/m 3)

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