能源塔波纹填料间气液两相热质交换模拟

Simulation on gas-liquid two-phase heat and mass transfer in corrugated packing in energy tower

为了提高能源塔吸热过程塔内波纹填料间液相降膜与逆流气相的热质交换性能,该文分析了波纹填料间气液两相热质交换过程,建立了波纹填料间气液两相逆流接触热质交换模型,模拟了不同气液相入口参数时填料间气液两相热质交换过程,发现相较于改变其它气液相入口参数,增大气相入口流量能在显著提高气液两相间传热传质量的同时减小潜热比,从提高换热量并减缓溶液稀释的角度出发,是改善能源塔换热性能的好方法。

In order to improve the heat and mass transfer performance of the liquid falling film and the countercurrent gas in the corrugated packing during the heat absorbing process of the energy tower.The heat and mass transfer model of countercurrent gas-liquid in corrugated packing is established based on a detailed analysis.The heat and mass transfer processes with different inlet parameters in the packing are simulated.It is found that compared with the variation of the other gas-liquid inlet parameters,the increase of the inlet gas flow can significantly improve the performance of the energy tower while increasing the heat transfer rate.It is a good method to improve the heat transfer performance of energy tower based on the ability to increase the heat transfer of the gas and liquid to slowdown the dilution of the solution.