Knowing the pump flow meter’s head and the diameter of the downstream pipe, can one calculate the pressure of the heat transfer oil?!
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Given the flow rate Q, head H, as well as the diameter and length of the pipe, it is possible to calculate the flow velocity u and the pressure drop. Using Bernoulli’s equation, p1 + 1/2ρv1² + ρgh1 = p2 + 1/2ρv2² + ρgh2, it is possible to determine the pressure at the end point. Since the fluid is heat transfer oil, can its viscosity be ignored?!
It shouldn’t be possible, as there are certainly certain resistances and frictions present during actual operation
It can be calculated theoretically. In reality, a pressure gauge can be installed directly to measure it