摘要
Abstract
How and heat transfer in 9 kinds of honeycomb plates, which were used in shell-and-plate heat exchangers, with different structural parameters were simulated by means of Fluent software and orthogonal design method. The results showed that the honeycombs with specific shapes distributed on the honeycomb plates forced the fluid and the honeycomb spots to collide, which led to formations of jets and small local vortexes, so the fluid turbulence and the boundary layer disturbance were enhanced. Among the selected three factors, namely welding spot diameter, honeycomb interval and honeycomb height, the honeycomb height is the most important factor affecting heat the transfer coefficient, the pressure drop and the overall performance of the honeycomb plates. With lowering of the height of the honeycomb plate, high heat transfer coefficient could be obtained, but pressure drop increased, which led to reduction of the overall performance关键词
Fluent软件/蜂窝板/数值模拟/正交设计/板壳式换热器Key words
Fluent software/ honeycomb plate/ numerical simulation/ orthogonal design/ shell-and- plate heat exchanger分类
化学化工
