Estimating parameters of plate heat exchanger for condensation of steam from mixture with air as a component of heat exchanger network

Olga Arsenyeva, Jiří Jaromír Klemeš, Leonid Tovazhnyanskyy, Eugeny Klochok and Petro Kapustenko

Energy, 2023, vol. 283, issue C

Abstract: The condensation of vapours in the presence of non-condensable gas is happening in a number of industries. Its efficient realisation must be considered in optimisation of Heat Exchanger Networks (HENs) to increase efficiency of energy usage. In these processes, Plate Heat Exchanger (PHE) with enhanced heat and mass transfer can be effectively used. The method of preliminary selection of the PHE heat transfer area, plate size and corrugation geometry is proposed for the case of steam condensing from its mixture with air. The method uses the developed earlier one-dimensional mathematical model, modernized for PHE consisting from commercially produced plates. The heat transfer area of PHE is minimised by proper selection of plate sizes and geometrical characteristics of its corrugation. The optimisation variables are the corrugation angle to the main flow direction inside PHE channel, the corrugations depth and the length of plate. The case study illustrates the application of the method in case of utilisation low grade heat from exhaust gases after process of drying by superheated steam. The method is implemented as a computer program which can be included as a Dynamic Link Library module in software for HEN optimisation.

Keywords: Heat transfer intensification; Plate heat exchanger; Condensation; Steam-air mixture; Pressure drop; Heat transfer area (search for similar items in EconPapers)
Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:283:y:2023:i:c:s0360544223018765

DOI: 10.1016/j.energy.2023.128482

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