Related Experiment Video
Updated: May 22, 2025
06:28
A Networked Desktop Virtual Reality Setup for Decision Science and Navigation Experiments with Multiple Participants
Published on: August 26, 2018
5.9K
Emergency evacuation paths for tank farm fires based on bi-objective dynamic planning
Guanbo Chou1, Yili Duo2, Jie Liu3
1School of Mechanical Engineering, Liaoning Petrochemical University, Fushun, 113001, China.
Scientific Reports
|March 15, 2025
Summary
A new bi-objective dynamic planning (BODP) method optimizes fire evacuation paths by minimizing time and thermal radiation exposure. This approach enhances safety in dynamic scenarios like tank farm fires.
Area of Science:
- Fire Safety Engineering
- Computational Science
- Risk Management
Background:
- Static evacuation path planning fails in dynamic fire scenarios.
- Real-time changes necessitate adaptive evacuation strategies.
- Existing methods do not adequately address both time and safety in evacuations.
Purpose of the Study:
- To propose a bi-objective dynamic planning (BODP) method for fire evacuation.
- To minimize both evacuation time and thermal radiation dose.
- To provide a robust solution for complex and dynamic fire events.
Main Methods:
- Developed a novel equivalent rule using linear weighting.
- Implemented an improved Dijkstra algorithm for pathfinding.
- Utilized a hexagonal grid map for multi-sink dynamic planning.
Main Results:
- The BODP method effectively minimizes evacuation time and thermal radiation.
- Achieved a 34% reduction in first-degree burn probabilities compared to static methods.
- Demonstrated applicability to tank farm fires and domino effect scenarios.
Conclusions:
- The BODP method is superior for dynamic fire evacuation path planning.
- Provides reliable technical support for emergency response in industrial settings.
- Significantly enhances personnel safety during complex fire incidents.
Related Concept Videos
01:17Design Example: Analyzing Capacity Contours for Flood Risk Assessment
35
Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...
35
01:12Design Example: Flow Through a Fire Extinguisher
111
A fire extinguisher that uses pressurized water relies on fluid dynamics principles to generate a high-velocity stream capable of suppressing flames. The water is stored at a much higher pressure inside the extinguisher than the surrounding atmosphere. This pressure difference forces the water to flow rapidly when the extinguisher is activated, and the behavior of the water as it exits the nozzle can be understood using fundamental equations of fluid dynamics.
The key to understanding how the...
The key to understanding how the...
111
01:28Pipe Flowrate Measurement: Problem Solving
199
A spray tank system is engineered to uniformly distribute a pest-control liquid across plants by using a pressurized mechanism. The tank, pressurized to 150 kPa, holds the pesticide at a height of 0.80 meters. Liquid flows from the tank through a 1.9 meter pipe with a diameter of 0.015 meters, angled at 0.698 radians, ultimately reaching a 0.007 meter nozzle that sprays the pesticide. Accurate calculation of the system's flow rate is crucial to ensure uniform application, and this is...
199
01:29Applications of GIS: Disaster Management and Emergency Response
30
Geographic Information System (GIS) technology is essential for risk identification, action prioritization, and resource optimization in critical situations like flooding and earthquakes. By integrating spatial and demographic data, GIS provides a comprehensive framework for emergency response.GIS integrates data layers, like rainfall intensity, topography, elevation profiles, and river levels, to model high-risk flood zones. These layers assess areas susceptible to flooding based on their...
30