aspen 设计规定总出错? 用带 couter-coolant 的 rplug 模型模拟了一个具有外部逆流冷却剂的合成反应器, 由于rplug 计算的是冷却剂的入口温度 计算结果将替换你规定的入口冷却剂的温度, 所以我们需要使用一个设计规定操纵冷却剂的出口温度或汽化率以满足规定的冷却剂入口温度 , 不过当我使用设计规定操纵冷却剂的汽化率来满足规定的冷却剂入口温度时出现错误,警告我设定的variable是一个产品物流的物性,所以无法得到结果! 请各位高手帮我出出主意,看看怎么解决这一问题! processing input specifications ... information binary parameters rkskij (data set 1) for model esrkstd are retrieved from sdf table. table name = esrkstd information while checking input specifications block name: r-3011 model name: rplug rplug will calculate the thermal and phase state for the inlet coolant stream flowsheet analysis : * warning during flowsheet analysis spec ds-1 varies variable downstream of sampled variables. block $olver01 (method: secant ) has been defined to converge specs : ds-1 ** error during flowsheet analysis spec ds-1 has no calculated sample variable. convergence block $olver01 will be deleted. computation order for the flowsheet: r-3011 ** error during flowsheet analysis your problem will not run because of errors found during flowsheet analysis. please fix the errors before re-running the problem.查看更多