TITLE:
Heat Transfer Modelling of Plate Heat Exchanger in Solar Heating System
AUTHORS:
Yan Jia, Can Wang, Zehui Chang, Wenxiong Li, Chi Zhang
KEYWORDS:
Plate Heat Exchanger, Performance, Pressure Drop, CFD
JOURNAL NAME:
Open Journal of Fluid Dynamics,
Vol.7 No.3,
September
28,
2017
ABSTRACT: Plate heat exchanger can obtain higher thermal performance because of its
advantages in high heat transfer coefficient, small scale, and can realize pure
counter current flow. It has been widely applied in HVAC industry. In this
paper, the numerical research of plate heat exchanger in solar heating system
has been proposed. Aimed at the type of herringbone corrugated plate which
has better thermal performance and been widely used, the three dimensional
model is established by Gambit software. Using FLUENT software for numerical
calculation, by studying the effect of corrugated inclination angle,
corrugated depth, corrugated spacing and inlet velocity of heat exchanger on
internal temperature, pressure, velocity distributions of domains, the relationship
between the above parameters and the Nusselt Number and the
pressure drop was obtained by simulation data. Heat transfer coefficient and
pressure drop correlations used to measure the overall performance of the
heat exchanger. The result shows that the optimal structure parameters is
corrugated angle 60°, corrugated depth 4 mm and corrugated spacing 16 mm.