Comparison of Heat Transfer Efficiency between Tubular Heat Exchangers and Plate Heat Exchangers

Plate heat exchangers feature a simple structure, comprising plate sheets, sealing gaskets, fixed pressure plates, movable pressure plates, pressure bolts, nuts, upper and lower guide rods, and front columns. Tubular oil coolers consist of a housing, tube bundle, upper tank, end caps, etc. Today, let's explore the heat transfer comparison between tubular and plate heat exchangers.

1There are numerous laminar flow components and extensive lubricant leakage tendencies during the shell manufacturing process of the tubular cooler: bypasses between baffles and the shell, baffles and the heat exchanger, and tube bundles and the shell, where the oil does not fully participate in the heat transfer.

2The plates of the plate-type oil cooler are made of stainless steel, with a plate thickness of only0.5mmThe tubes of the tube-type oil cooler are made of purple copper, with a thickness of approximately2.0mmPlate heat exchangers are superior to tubular oil coolers, therefore.

3The lubricating oil and cooling water in plate heat exchangers flow in a reverse flow pattern. The lubricating oil and cooling water in shell and tube heat exchangers flow in an alternating flow pattern, reducing the logarithmic mean temperature difference. Plate heat exchangers can achieve cross temperature and end temperature differences.1cShell and tube oil cooler can only achieve a maximum temperature difference of5℃。