A pressure drop dilemma – truth or fiction? Can anyone help solve the mystery?

The crime scene: There is a water system containing all of the usual fittings being pumped around a building by a pump in the basement. The pipework is DN150. The water flowrate is around 18 litre/sec making the pipe velocity around 1 m/sec. A gasketed plate and frame type heat exchanger (PHE), also in the […]