Occupational Health and Safety Research Centre, School of Public Health, Hamadan University of Medical Sciences, Iran.
Int J Occup Saf Ergon. 2022 Jun;28(2):1291-1303. doi: 10.1080/10803548.2021.1890423. Epub 2021 Mar 19.
. A necessity for this study was felt in the catalyst replacement process as a maintenance operation, because some fatal incidents have occurred due to human error in process industries during catalyst replacement operation. Identification and evaluation of human error is essential in predicting and reducing accidents in maintenance operation. . The human error assessment and reduction technique (HEART) as a human reliability analysis was applied in this study. Because the HEART method uses expert judgment, it is possible to make a bias in the assessment. Fuzzification and aggregation opinions of a heterogeneous expert group in a trapezoidal fuzzy set were used to mitigate this deficiency. . Evaluation results showed that the subtask 'Entering the reactor' with human error probability (HEP) of 9.2E-1 and the subtask 'Reduce temperature while reducing feed' with HEP 1.3E-3 had the highest and lowest chance of human error, respectively. . In order to reduce the likelihood of human error, it is necessary to take appropriate actions based on the task-specific error producing condition (EPC).
. 在催化剂更换过程中，作为一项维护操作，人们感到有必要进行这项研究，因为在过程工业中，由于人为错误，在催化剂更换操作过程中发生了一些致命事故。在预测和减少维护操作中的事故时，识别和评估人为错误是必不可少的。. 在这项研究中应用了人为可靠性分析（HRA）中的人为失误评估和降低技术（HEART）。由于 HEART 方法使用专家判断，因此在评估中可能存在偏差。使用梯形模糊集来模糊化和聚合异构专家组的意见，以减轻这种缺陷。. 评估结果表明，人为错误概率（HEP）分别为 9.2E-1 和 1.3E-3 的子任务“进入反应堆”和“在减少进料的同时降低温度”具有最高和最低的人为错误可能性。. 为了降低人为错误的可能性，需要根据特定任务的产生错误条件（EPC）采取适当的措施。
