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aspen转aspen dynamics失败:
警告原因:The specified pressure drops in the column are smaller than the liquid head onthe stages listed below.Please adjust the pressure profile on the Pressure sheet ofthe Setup form.A typical total pressure drop across a stage is twice the pressuredrop due to liquid head.Alternatively, modify the weir heights or column
简单说就是:塔板水力学计算的压降大于设定的塔板压降。
解决办法:1)适当加大塔压降,但可能导致流程不收敛;2)调整水力学参数,如塔径、板间距等。
***方法二的重点在于调整完水力学后,气液相分布也会改变,所以需要重新计算塔顶回流罐和塔釜的尺寸。
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