ΔP = Pressure drop through the exchanger, per side (Pa) ΔP channel = Pressure drop through the exchanger channels, in between each plate (Pa) ΔP collector = Pressure drop in the inlet/outlet ports of the heat exchanger (Pa). It has to be calculated on cold and hot side, as the value can be different. Since fluid circulation requires some form of pump or fan, additional costs are incurred as a result of poor design. Heat exchanger tube side pressure drop calculation. Pressure drop is a major constraint in thermal design of shell and tube heat exchangers. The pressure drop on the tube-side of the heat exchanger is composed of several different terms: the pressure losses in the inlet and outlet nozzles, the pressure losses in the headers or channels, the pressure losses associated with accelerating the fluid and The pressure drop across a shell and tube heat exchanger is mainly a function of the heat exchanger structure and shell & tube arrangement. Pressure drop calculations are required for With. This is a sample of the Heat Exchanger Tubeside Pressure Drop calculator.To access the working calculator, please sign up for free membership trial.. Pressure Drop in Channels and Heat Exchangers. Chapter 4. Calculate the shell side pressure drop for the following heat exchanger specification, Process fluid = water Inlet pressure = 4 barg Inlet temperature = 500C Outlet temperature = 300C Tubeside flowrate = 50000 kg/hr Shell diameter =22 inches Number of baffles = 32 Baffle spacing = 6 inches (reference - guide to optimize baffle spacing) Tube diameter = 1 inch Number of tubes = 10 Pitch = 1.25 inches, triangular pitch Shellside roughness … 5.4 Heat Exchanger Pressure Drop Pressure drop in heat exchangers is an important consideration during the design stage. Learning Objectives At the end of this chapter the student should: • Recognise the importance of pressure drop in heat transfer system design • Know the three mechanisms governing pressure drop, i.e. In the absence of a temperature gradient, it is possible to have pressure drop in a flow without heat transfer. Calculate the tube side pressure drop for the following heat exchanger specification, Process fluid = water Inlet pressure = 4 barg Inlet temperature = 50 0 C Outlet temperature = 30 0 C Tubeside flowrate = 50000 kg/hr Number of tubes = 25 Tube ID (internal diameter) = 1 inch Tube length = 3.5 m Pressure Drop Inside Round Tubes. Heat transfer is not the consequence (or effect) of pressure drop. gravity, fluid acceleration and friction. A thermal design of a shell and tube heat exchanger is meaningful only when it is optimum and the extent of the optimality is constrained by the pressure drop.

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