Determination of Safety Integrity Level of Ammonia Refrigeration System

被引：0
|
作者：
Li L. [1 ]
Xu K.-L. [1 ]
Wang B. [1 ]
Yao X.-W. [1 ]
机构：
[1] School of Resources & Civil Engineering, Northeastern University, Shenyang
来源：
Dongbei Daxue Xuebao/Journal of Northeastern University | 2019年 / 40卷 / 07期
关键词：
Ammonia refrigeration; Failure probability; HAZOP-LOPA; Risk probability reduction; SIL(safety integrity level);
D O I：
10.12068/j.issn.1005-3026.2019.07.022
中图分类号：
学科分类号：
摘要：
The risk probability reduction quotient(Qrpr) is defined during the evaluation of the safety integrity level, and the formula of Qrpr is given. Qrpr is used to characterize the reduction in the risk probability. The value of the Qrpr corresponds to the failure probability required by the system safety integrity level, and then can be used to determine the safety integrity level. Integrating the Qrpr calculation into the classical HAZOP-LOPA evaluation method can more accurately and quickly evaluate the safety integrity level of the system. This method is used to evaluate the safety integrity level of the ammonia refrigeration system. The leakage and explosion accidents in the ammonia refrigeration system were analyzed, and the safety integrity level of the safety-related system was evaluated to verify the effectiveness and feasibility of the method. © 2019, Editorial Department of Journal of Northeastern University. All right reserved.
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页码：1034 / 1038
页数：4
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