Design and optimization of plate heat exchanger networks

Xu, Kexin; Smith, Robin

doi:10.1016/b978-0-444-64241-7.50070-7

Cited by 10 publications

(2 citation statements)

References 4 publications

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“…Plate heat exchangers are very efficient heat transfer devices. However, their main limitation is the fact that they can only be used at a relatively low pressure and temperature [4]. Therefore, the presented article covers only the cross-flow heat exchangers operating in conditions of a small temperature difference (up to 50-60 • C) between the exhaust air and the air supplied from the outside, and discusses a mathematical model for the airflow through a cross-flow plate heat exchanger.…”

Section: Introductionmentioning

confidence: 99%

Comparison of the Efficiency of Cross-Flow Plate Heat Exchangers Made of Varied Materials

2022

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This paper discusses a mathematical model for airflow through a cross-flow plate heat exchanger. The exhaust air is used to heat the supply air. Three kinds of plates are considered: made of aluminium, copper, and steel. The purpose of this research was to verify which material used to build the plate heat exchangers uses the exhaust air heat more efficiently. The method of the Trefftz function was used to determine approximate solutions to the analysed problem. The results obtained for 1.2 mm-thick plates and for external winter, summer, and spring–autumn temperatures are discussed. The results indicate that if the efficiency and price of the metals are considered, then steel is the best material for the plate heat exchanger. Thanks to the use of thin steel plates and the reduction in air exchange time to a few minutes, a cheap and efficient cross-flow heat exchanger can be obtained.

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Section: Introductionmentioning

confidence: 99%

Comparison of the Efficiency of Cross-Flow Plate Heat Exchangers Made of Varied Materials

2022

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“…The optimization of heat transfer in industrial processes has become of great importance in the development of sustainable energy strategies. Therefore, the design of high-performance heat exchangers is of great interest for various industrial applications [1].…”

Section: Introductionmentioning

confidence: 99%

Simulation of a Plate Heat Exchanger Operating with Nanofluid Coolant Using CFD

Rezende¹,

Vianna²,

Luporini³

2021

IJHT

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The use of nanofluids as coolant fluid in a plate heat exchanger (PHE) was investigated by conducting 3D CFD (Computational Fluid Dynamics) simulations. Al2O3/water nanofluid with volume concentrations of 2%, 3% and 4% was used as coolant fluid and water as hot fluid. In addition, the effects of corrugation angle of the plates were analyzed by varying them between 0° and 60°. Validation was performed by using heat transfer coefficients experimentally obtained in a previous study. Results show that the use of nanofluids in higher concentrations improves the performance of the PHE’s parameters. The angles of 30° and 60° between the plates reduce pressure drop and reflux regions improving the heat exchange. The variations of the nanofluid flow must take into account the proper pressure drop for the process where is PHE is employed because the increased flow rate results in a significant increase in the pressure drop. In general, this work has potential to be used for enhancing the design of PHEs.

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