Numerical simulation of corrugated inclination angle on the performance of plate heat exchanger

Abstract

Abstract-Plate heat exchanger is a kind of compact heat exchanger, which has high heat transfer coefficient and compact structure and is easy to wash.In recent years it has been widely used, but also has the disadvantages of big flow resistance.In this paper the numerical simulation is performed by using the CFD soft FLUENT[1]. A 3D geometric model is established and whose mesh is generated. The fields of the temperature, pressure and velocity in the computational domain are simulated. And the effect of the corrugation inclination angle on the heat transfer and flow is analyzed.From the numerical simulation,we can get some conclusions about the corrugation inclination angle .Along with the corrugation inclination angle increases, heat exchange gets better and plate pressure drop decreases. Corrugated plate with inclination angle(70°) is good for the cleaning effect of the high-speed turbulence which can effectively reduce the deposited dirt. If we consider the heat transfer and the resistance, inclination angle should be from 60°to 70°.By this conclusions ,we can get a best inclination angle to design the plate heat exchanger.

Optimal Design of an Air-to-Air Heat Exchanger with Cross-Corrugated Triangular Ducts by Using a Particle Swarm Optimization Algorithm

“…Kumar et al [10] conducted a series of experiments to study the effect of chevron angle on heat transfer performance in plate heat exchangers using ZnO/water nanofluid. Zhao et al [11] numerically investigated the inclination angle on the performance of the corrugated heat exchanger. Liu and Niu [12] studied the effect of Apex angle and aspect ratio on heat transfer, pressure drop and thermohydraulic performance of periodic cross-corrugated channels using Computational Fluid Dynamics (CFD).…”

Review of Developments in Plate Heat Exchanger Heat Transfer Enhancement for Single-Phase Applications in Process Industries

“…The share of friction losses contributing to the total loss of pressure and the distribution of shear stress on the wall of the plates with triangular corrugations were obtained. The effect of the corrugation inclination angle on the performance of a plate-and-frame PHE was studied in [76]. This effect was investigated for brazed PHEs using CFD modelling in [77], and correlations for the friction factor and Nu number were obtained.…”

“…All those papers [59,[75][76][77][78][79] used flow models based on averaging NS equations with the use of turbulence models, mainly the k-ε model. These models have empirical constants that can be adjusted for the considered flow, hence limiting model validity for other cases with different channel geometries and other Re numbers and fluid properties.…”

Digital measurement of corrugated plate structure parameters of plate heat exchanger

“…Vukasinovic et al [2] and Sun et al [3] analyzed the laser displacement sensor light path and light intensity,establish the error compensation model,error compensation was made for the collected data of the laser displacement sensor at the tilt detection surface.Shi et al [4],and Yan et al [5]application of the laser displacement sensor to the industrial detection.At present, the measurement of the corrugated plate structural parameters of the plate heat exchanger is mainly artificial,Zhaoet al, a measurement method of the plate expansion coefficient φ completed by the ruler and correction belt mechanism,failure to address the shortcomings of traditional manual measurement techniques [6]. This paper presents the digital measurement technology of non-contact measuring device based on laser scanning sensor，taking the corrugated plate standard block of plate heat exchanger as the test object,build the traditional manual measurement technology,comparison and verification test of digital measurement technology,to quantitatively verify the reliability and scientificity of the digital measurement technology of the non-contact measurement device based on the laser scanning sensor.…”