Comparison of heat and mass transfer in different heat exchanger geometries with corrugated walls

Enhanced heat transfer due to curvature-induced lateral vortices in laminar flows in sinusoidal corrugated-plate channels

“…This may perhaps be due to the larger plate spacing (> 2a) and a finite duct cross-section aspect ratio [24], and it contradicts other results. The experimental data for inter-plate spacing ¼ 2a as well as the more severe case of crosscorrugated PHE channels suggest steady albeit recirculating or swirl flows for Re $ 1000 [7][8][9][24][25][26]. In fact, in some other instances of swirl (curved tube Dean flows, helical channel swirl flows, etc.…”

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

“…The results showed that the heat transfer and pressure drop increased with an increase of corrugation inclination angle. Zimmerer et al [9] experimentally investigated the effect of the geometric parameters like the inclination angle, the wavelength, the amplitude and the shape of corrugation on thermohydraulic performance of the corrugated heat exchangers. Their results showed that the geometries were of significant influence on the heat transfer and pressure drop.…”

Effect of corrugated plates in an in-phase arrangement on the heat transfer and flow developments

“…Hamza et al [17] experimentally studied effects of the operating parameters on laminar flow forced-convection heat transfer of air flowing in a channel having a V-corrugated upper plate. Zimmerer et al [18] studied effects of the inclination angle, the wavelength, the amplitude, and the shape of the corrugation on the heat and mass transfer of the heat exchanger. Wang and Chen [19] applied a simple coordinate transformation method and the spline alternating-direction implicit method for determining the heat transfer rates for flowing through a sinusoidally curved converging-diverging channel.…”