典型文献
Using machine learning models to explore the solution space of large nonlinear systems underlying flowsheet simulations with constraints
文献摘要：
Flowsheet simulations of chemical processes on an industrial scale require the solution of large systems of nonlinear equations,so that solvability becomes a practical issue.Additional constraints from technical,economic,environmental,and safety considerations may further limit the feasible solution space beyond the convergence requirement.A priori,the design variable domains for which a simulation converges and fulfills the imposed constraints are usually unknown and it can become very time-consuming to distinguish feasible from infeasible design variable choices by simply running the simulation for each choice.To support the exploration of the design variable space for such scenarios,an adaptive sampling technique based on machine learning models has recently been proposed.However,that approach only considers the exploration of the convergent domain and ignores additional constraints.In this paper,we present an improvement which particularly takes the fulfillment of constraints into account.We successfully apply the proposed algorithm to a toy example in up to 20 dimensions and to an industrially relevant flowsheet simulation.
文献关键词：
中图分类号：
作者姓名：
Patrick Otto Ludl;Raoul Heese;Johannes H(o)ller;Norbert Asprion;Michael Bortz
作者机构：
Fraunhofer ITWM Optimization Department,Kaiserslautern 67663,Germany;Chemical and Process Engineering BASF SE,Ludwigshafen 67056,Germany
文献出处：
引用格式：
[1]Patrick Otto Ludl;Raoul Heese;Johannes H(o)ller;Norbert Asprion;Michael Bortz-.Using machine learning models to explore the solution space of large nonlinear systems underlying flowsheet simulations with constraints)[J].化学科学与工程前沿,2022(02):183-197
A类：
flowsheet,Flowsheet
B类：
Using,machine,learning,models,explore,solution,space,large,nonlinear,systems,underlying,simulations,constraints,chemical,processes,scale,equations,that,solvability,becomes,practical,issue,Additional,from,technical,economic,environmental,safety,considerations,may,further,limit,beyond,convergence,requirement,priori,design,variable,domains,which,converges,fulfills,imposed,are,usually,unknown,can,very,consuming,distinguish,infeasible,choices,by,simply,running,each,To,support,exploration,such,scenarios,adaptive,sampling,technique,has,recently,been,proposed,However,approach,only,considers,convergent,ignores,additional,In,this,paper,present,improvement,particularly,takes,fulfillment,into,account,We,successfully,apply,algorithm,toy,example,dimensions,industrially,relevant
AB值：
0.608
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