Abstract
Simulation of egress is vital for minimizing losses during fire disasters, however accurate simulations are scarce and real-life data is hard to come by. In this paper, a Proposed Wireless Fire Evacuation Model (PWFEM) is proposed to simulate fire evacuation process in a short time to minimize evacuee’s exposure to the harmful radiation and fire hazards. The PWFEM simulation realistic by supposing fire scenario at cabined contains electrical cables inside a standard Main Control Room (MCR) in a Nuclear Power Plant (NPP) building. In addition, a new Hybrid Safest Shortest Exit (HSSE) is developed which consists of three stages: safest route based on rules-based technique, evacuees location based on the DV-hop technique [1] and shortest route that depends on Dijkstra technique. The PWFEM Simulations are appreciated to yield a realistic fire scenario by using a telecommunications TCP/IP network in form of server and client sides that help in transfer data inside internal networks in the NPP building. On the server-side, suppose that Consolidated Model of Fire Growth and Smoke Transport (CFAST) fire modeling is applied to simulate the fire scenario in MCR through CFAST model to generate fire products as output data in excel sheets and sends them to the client-side. The client-side then runs HSSE to produce the tree map for safest and shortest routes to help the evacuee for safe exit from his/her location. HSSE can be implemented on evacuee’s watches. From the results, it is concluded that PWFEM can simulate the fire scenario inside MCR, furthermore it is validated that HSEE can be used as an efficient emergency fire evacuation technique that can produce safest and shortest exit route for evacuee in any location inside NPP in very small time. In addition, PWFEM can be used for simulating fire evacuation inside any high-risk buildings and can appreciate yielding any realistic fire scenario with many types of fire sources in different places inside buildings.
Highlights
Nuclear Power Plants (NPPs) are a facility for electrical energy generation developed for operating on a continuous regime
A new Hybrid Safest Shortest Exit (HSSE) is developed which consists of three stages: safest route based on rules-based technique, evacuees location based on the DV-hop technique [1] and shortest route that depends on Dijkstra technique
The temperature and gaseous products from the fire events have the main effect in the emergency evacuation; so that in this part, the products data of the fire scenario modeling that the applied in the standard Main Control Room (MCR) and two selected corridors during fire assume data collected from wireless sensors output data such as temperatures, the visible smoke and gas species concentrations within each layer
Summary
Nuclear Power Plants (NPPs) are a facility for electrical energy generation developed for operating on a continuous regime. Fire safety in NPPs intended to ensure the highest level of safety that can reasonably be achieved by the protection for operators, workers, and other public, environment, and investment [3]. It started in phase of NPP design and for all the plant life. In NPPs, fire emergency evacuation plans are requirement from safety authorities and regularities for licenses and take into account the fire risk assessment, fire risk management and successful evacuation [4]. In NPP the fire protection concerning about the safety of buildings and people Emergency fire evacuation in NPPs is very important since, it concerns of the safety of operators, workers and public outside. Evacuation management for nuclear power fire accident involves a number of processes and factors that are evacuated in a smallest time determining the safe and shortest routes are considered as the most important evacuation’s criteria [5]
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