Research on an AI-Empowered Three-Stage Closed-Loop Teaching Model for Chemical Engineering Practical Training

Jun Yang; Yixin Zhang; Jingjing Xie; Yuqin Chen; Chaoting Fu

doi:10.6918/IJOSSER.202607_9(7).0009

Research on an AI-Empowered Three-Stage Closed-Loop Teaching Model for Chemical Engineering Practical Training

Jun Yang, Yixin Zhang, Jingjing Xie, Yuqin Chen, Chaoting Fu

International Journal of Social Science and Education Research, (2026), Vol.9, No.7, pp.68-75

Published: July 12, 2026

DOI: 10.6918/IJOSSER.202607_9(7).0009

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Abstract

To address insufficient pre-class preparation, limited individualized guidance, inadequate fault-analysis training, and delayed report feedback in higher vocational chemical engineering practice, this study develops a three-stage closed-loop teaching model consisting of intelligent pre-training, scenario-based in-class guidance, and post-training feedback and evaluation. Taking the course Pre-job Training for Chemical Process Operators as the carrier, generative artificial intelligence is used for knowledge diagnosis, process-flow recognition, scenario simulation, data checking, and personalized feedback. Equipment manuals, operating procedures, safety regulations, fault cases, and assessment rubrics form the course knowledge resources, while teacher-defined rules establish the safety boundary of AI use. The model was applied to a class of 43 students, of whom 39 had complete process records. The complete-sample mean score was 80.09, the median was 79.00, the pass rate was 100%, and 46.15% of students scored 80 or above. The model links preparation, on-site operation, and post-training reflection, offering a practical approach to differentiated guidance, process-oriented assessment, and vocational competence development.

Keywords: Artificial intelligence; chemical engineering practical training; pre-job training; three-stage closed loop; process assessment.

APA Citation: Jun Yang, Yixin Zhang, Jingjing Xie, Yuqin Chen, Chaoting Fu (2026). Research on an AI-Empowered Three-Stage Closed-Loop Teaching Model for Chemical Engineering Practical Training. International Journal of Social Science and Education Research, 9(7), 68-75. https://doi.org/10.6918/IJOSSER.202607_9(7).0009

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