Plate Heat Exchanger Pressure Drop Calculation

Checking the pressure drop is especially important for gasketed plate heat exchanger which have a limited resistance to pressure compared to brazed plate heat exchangers.

Plate heat exchanger pressure drop calculation. 2 6 step 6. If the flow rate specific heat and temperature difference on one side are known the heat load can be calculated. Plate heat exchanger design. The flow distribution between the plates in a plate heat exchanger is highly dependent on the relative magnitude of port pressure drop and total pressure drop through the heat exchanger.

To use phe effectively it is necessary to have correct data for pressure drop. Heat load theta and lmtd calculation. All heat transfer and pressure drop relationships are based on either a velocity calculated from the average plate gap or on the flow rate per passage. In this work is shown that an essential portion of this difference lies in the.

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. Rating calculation for plate heat exchanger effectiveness and pressure drop using existing performance data april 2002 chemical engineering research and design 80 3 309 312. Fluid friction in the manifolds and the momentum changes occurring when the fluid is entering. A high θ pattern leads to bigger pressure drop than a low θ pattern.

The heat load of a heat exchanger can be derived from the following two formulas. The pressure drop in a plate heat exchanger can be estimated thanks to the following correlation. Heat exchanger tube side pressure drop calculation. Correction coefficients for shell side heat transfer bell delaware how to calculate the correction coefficients for the shell side heat transfer coefficient in the bell delaware method.

Plate heat exchangers phes play an important role in different technical fields namely in energetics chemical industry food industry and others. Typical velocities in plate heat exchangers for waterlike fluids in turbulent flow are 0 3 0 9 m s but true velocities in certain regions will be higher by a factor of up to 4 due to the effect of the geometry of the plate design. How to calculate the pressure drop of the fluid in the tubes in a shell tube heat exchanger. P heat load btu h m mass flow rate lb h c p specific heat btu lb f.

The port pressure drop is said to be dependent on two things. The pressure drop in a bphe channel mainly depends on different variables shown in table below. The plate pattern is one of the tools the designer can use to increase or decrease the pressure drops through the bphe.