NUMERICAL STUDY OF TRANSIENT FORCED CONVECTION IN PARALLEL-PLATE HEAT EXCHANGER

1996 ◽  
Author(s):  
Nadim El Wakil ◽  
Mourad Rebay ◽  
Jacques Padet
Keyword(s):  
Heat Exchanger ◽  
Forced Convection ◽  
Parallel Plate ◽  
Numerical Study ◽  
Plate Heat Exchanger ◽  
Plate Heat

Numerical study of a plate heat exchanger using CFD: Comparison of texture loss assessed by rheological measurements

2018 ◽  
Vol 41 (7) ◽  
pp. e12889
Author(s):  
Nicolas Schaer ◽  
Jean-Marie Odinot ◽  
Kasui Tang ◽  
Matthieu Dufresne ◽  
José Vazquez ◽  
...  
Keyword(s):  
Heat Exchanger ◽  
Numerical Study ◽  
Plate Heat Exchanger ◽  
Plate Heat ◽  
Rheological Measurements

scholarly journals CFD SIMULATION OF THE HEAT TRANSFER PROCESS IN A CHEVRON PLATE HEAT EXCHANGER USING THE SST TURBULENCE MODEL

2015 ◽  
Vol 55 (4) ◽  
pp. 267 ◽  
Author(s):  
Jan Skočilas ◽  
Ievgen Palaziuk
Keyword(s):  
Heat Transfer ◽  
Heat Exchanger ◽  
Transfer Process ◽  
Cfd Simulation ◽  
Numerical Study ◽  
Analytical Calculation ◽  
Heat Transfer Process ◽  
Plate Heat Exchanger ◽  
Hot Water ◽  
Plate Heat

<p>This paper deals with a computational fluid dynamics (CFD) simulation of the heat transfer process during turbulent hot water flow between two chevron plates in a plate heat exchanger. A three-dimensional model with the simplified geometry of two cross-corrugated channels provided by chevron plates, taking into account the inlet and outlet ports, has been designed for the numerical study. The numerical model was based on the shear-stress transport (SST) <em>k-!</em> model. The basic characteristics of the heat exchanger, as values of heat transfer coefficient and pressure drop, have been investigated. A comparative analysis of analytical calculation results, based on experimental data obtained from literature, and of the results obtained by numerical simulation, has been carried out. The coefficients and the exponents in the design equations for the considered plates have been arranged by using simulation results. The influence on the main flow parameters of the corrugation inclination angle relative to the flow direction has been taken into account. An analysis of the temperature distribution across the plates has been carried out, and it has shown the presence of zones with higher heat losses and low fluid flow intensity.</p>

scholarly journals Experimental and numerical studies of a spiral plate heat exchanger

2014 ◽  
Vol 18 (4) ◽  
pp. 1355-1360 ◽  
Author(s):  
Rajavel Rangasamy
Keyword(s):  
Heat Transfer ◽  
Nusselt Number ◽  
Heat Exchanger ◽  
Numerical Study ◽  
Numerical Models ◽  
Plate Heat Exchanger ◽  
Test Fluid ◽  
Plate Heat ◽  
Plate Spacing ◽  
Spiral Plate

An experimental and numerical study of heat transfer and flow characteristics of spiral plate heat exchanger was carried out. The effects of geometrical aspects of the spiral plate heat exchanger and fluid properties on the heat transfer characteristics were also studied. Three spiral plate heat exchangers with different plate spacing (4mm, 5mm and 6 mm) were designed, fabricated and tested. Physical models have been experimented for different process fluids and flow conditions. Water is taken as test fluid. The effect of mass flow rate and Reynolds number on heat transfer coefficient has been studied. Correlation has been developed to predict Nusselt numbers. Numerical models have been simulated using CFD software package FLUENT 6.3.26. The numerical Nusselt number have been calculated and compared with that of experimental Nusselt number.

Flow Maldistribution in a Simplified Plate Heat Exchanger Model - A Numerical Study

2011 ◽  
Vol 110-116 ◽  
pp. 2529-2536 ◽  
Author(s):  
Nityanand Pawar ◽  
R.S. Maurya
Keyword(s):  
Heat Exchanger ◽  
Uniform Distribution ◽  
Numerical Study ◽  
Flow Distribution ◽  
Plate Heat Exchanger ◽  
Design Parameters ◽  
Process Equipment ◽  
Numerical Work ◽  
Plate Heat ◽  
Flow Maldistribution

The performance of a plate heat exchanger (PHE) is severely influenced by non-uniform distribution of flow among its channels. Not only the PHEs, but many other process equipment needs uniform flow distribution for their optimum performance. Flow maldistribution (non-uniform distribution) is a common design problem which always puzzles process equipment designers. Being important design parameters, it has been investigated by several researchers and case based solution has been proposed and documented. Present numerical work is intended to target this aspect of the problem of PHEs but starts with a general investigation with simple multichannel geometry. The numerical setup consists of two headers having multiple channels for U-and Z-turn flow configuration under multichannel geometry and a simplified PHE for plate heat exchanger simulation. The problem has been investigated from hydrodynamic and thermodynamic view point. For hydrodynamic study, flow has been varied for Reynolds number 120 to 17600. It has been found that channel flow goes on reducing along downstream side. In thermal study the effect of wall temperature on air flow mal distribution has been investigated. Numerical results have been validated with the experimental results. Investigation reveals new features of flow mal-distribution which is helpful in better understanding of associated mal-distribution physics.

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