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Numerical study of the enhancement produced in absorption processes using surfactants

机译:使用表面活性剂吸收过程中产生的增强作用的数值研究

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摘要

A model that considers the Navier-Stokes equations is used to study the influence of surfactants, substances that improve heat and mass transfer in absorption machines due to Marangoni effect. For solving the free surface location a surface tracking method is used, and for the calculation of surface tension forces, a continuum surface forces model is employed. The coupled equations are solved using the SIMPLEC procedure. Two common surfactants for LiBr aqueous solutions, 1-octanol and 2-ethyl-1-hexanol, are numerically tested and the absorption enhancement produced in a stagnant pool is compared with other researchers' results. For falling film absorption some other results are showed.
机译:使用考虑了Navier-Stokes方程的模型来研究表面活性剂的影响,这些物质是由于Marangoni效应而改善吸收机中热量和传质的物质。为了求解自由表面位置,使用了表面跟踪方法,并且为了计算表面张力,使用了连续表面力模型。使用SIMPLEC过程求解耦合方程。对两种常见的LiBr水溶液表面活性剂1-辛醇和2-乙基-1-己醇进行了数值测试,并将停滞池中产生的吸收增强与其他研究人员的结果进行了比较。对于降膜吸收,还显示了其他结果。

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