Mathematical Safety Assessment Approaches for Thermal Power Plants

Abstract

How to use system analysis methods to identify the hazards in the industrialized process, working environment, and production management for complex industrial processes, such as thermal power plants, is one of the challenges in the systems engineering. A mathematical system safety assessment model is proposed for thermal power plants in this paper by integrating fuzzy analytical hierarchy process, set pair analysis, and system functionality analysis. In the basis of those, the key factors influencing the thermal power plant safety are analyzed. The influence factors are determined based on fuzzy analytical hierarchy process. The connection degree among the factors is obtained by set pair analysis. The system safety preponderant function is constructed through system functionality analysis for inherence properties and nonlinear influence. The decision analysis system is developed by using active server page technology, web resource integration, and cross-platform capabilities for applications to the industrialized process. The availability of proposed safety assessment approach is verified by using an actual thermal power plant, which has improved the enforceability and predictability in enterprise safety assessment.

Application of a Cloud Model-Set Pair Analysis in Hazard Assessment for Biomass Gasification Stations

“…SPA is a multifunctional assessment method that is simple in concept and easy to apply [22], and it is a systematic analysis method that deals with uncertain problems; it is also an uncertainty theory that integrates certainty and uncertainty [23]. SPA is practical in various fields and can be used in the investigation of leaking water from a dam [24], quality assessment of groundwater [25], evaluation of surrounding rock stability [26], hazard assessment of debris flow and landslides [22,27], assessment of a water resources system [28], comprehensive risk assessment of floods [23], safety assessment of thermal power plants [29], risk assessment of water pollution sources [30], prediction analysis of integrated carrying capacity [31], and so on. In SPA, one of the cores is the confirmation of assessment index weight.…”

A novel hazard assessment method for biomass gasification stations based on extended set pair analysis

“…Research results showed that the proposed model can describe the dynamic process and give a new resolution for the decision-making of uncertain and complicated environment. In addition, SPA also can be effectively utilized in the risk assessment of the enterprise management [ 34 ], flood disaster [ 21 , 35 ] and major hazard installations [ 24 ], hazard degree assessment of landslide [ 36 ], dam leakage investigation [ 23 ], disease diagnosis [ 37 ], risk assessment of water pollution sources [ 38 ], safety assessment of thermal power plants [ 39 ], statistical prediction of water resources [ 40 ], hazard assessment of debris flow [ 41 ], etc .…”

“…As previously mentioned, it can be concluded that SPA is a valid method to make hazard or risk assessment in various fields, including flood [ 21 , 35 ], coal mining [ 33 ], enterprise management [ 34 ], landslide [ 36 ], water pollution sources [ 38 ], thermal power plants [ 39 ], and debris flow [ 41 ]. However, the hazard assessment for biomass gasification stations using SPA is rare.…”