Related Experiment Video
Updated: Jun 26, 2026
09:13
Experimental Multiscale Methodology for Predicting Material Fouling Resistance
1.4K
Fuzzy bow-tie analysis for mitigating self-heating risks in maritime coal transportation
Barış Temel1, Cenk Sakar2, Muge Buber2
1Dokuz Eylul University, Graduate School of Social Science, Department of Maritime Business Administration, Tinaztepe Campus, Buca, Izmir, Turkey.
Marine Pollution Bulletin
|October 23, 2024
Summary
Coal self-heating in maritime transport poses risks. Fuzzy Bow-Tie analysis enhances risk assessment for spontaneous combustion, improving safety for coal transportation and preventing marine pollution.
Area of Science:
- Maritime Safety
- Risk Management
- Environmental Science
Background:
- Coal self-heating is a significant hazard in maritime transportation, leading to spontaneous combustion, environmental damage, and economic losses.
- Traditional risk assessment methods struggle with the uncertainties inherent in coal properties and transportation conditions.
- Accurate forecasting of incidents, such as toxic gas emissions from self-heating coal, is critical for preventing marine pollution.
Purpose of the Study:
- To apply Fuzzy Bow-Tie analysis for assessing and mitigating risks of coal self-heating during maritime transport.
- To provide a more reliable risk assessment tool that effectively handles data uncertainties.
- To offer practical guidance for improving coal handling safety and reducing environmental harm.
Main Methods:
- Utilized Fuzzy Bow-Tie analysis, integrating expert judgments to evaluate risk factors and safety barriers.
- Compared the effectiveness of Fuzzy Bow-Tie analysis against traditional deterministic methods for risk assessment.
- Analyzed key contributing factors to self-heating incidents, including ventilation, air gaps, and inaccurate coal property declarations.
Main Results:
- Fuzzy Bow-Tie analysis offers a comprehensive and reliable method for risk assessment in complex maritime environments, outperforming deterministic approaches.
- Identified improper ventilation, large air gaps, inaccurate coal declarations, inadequate cargo monitoring, and non-compliance with the International Maritime Solid Bulk Cargoes (IMSBC) Code as major risk contributors.
- Demonstrated the model's capability in accurately forecasting incidents that could lead to environmental harm.
Conclusions:
- Fuzzy Bow-Tie analysis is a reliable and flexible tool for managing uncertainties and enhancing risk assessment in maritime coal transportation.
- Findings provide practical recommendations for shipping companies and port authorities to improve coal handling practices and safety procedures.
- The study contributes to reducing the potential for accidents and environmental damage associated with self-heating coal.
More Related Videos
10:52Design, Instrumentation and Usage Protocols for Distributed In Situ Thermal Hot Spots Monitoring in Electric Coils using FBG Sensor Multiplexing
Published on: March 8, 2020
5.8K
04:35Author Spotlight: Simulation and Analysis of the Temperature Rise of Ring Main Unit Equipment
Published on: July 5, 2024
1.7K
Related Concept Videos
01:19Mechanism of heat transfer
Understanding heat transfer mechanisms is essential for understanding how our bodies maintain balance in different environmental conditions. When the environment is thermoneutral, the body is in a state of balance, neither using nor releasing energy to maintain its core temperature. However, when the environment is not thermoneutral, the body employs four heat transfer mechanisms to maintain homeostasis: conduction, convection, evaporation, and radiation. These mechanisms facilitate heat...
01:09Thermal Stress
If the temperature of an object is changed while it is prevented from expanding or contracting, the object is subjected to stress. The stress is compressive if the object expands in the absence of constraint and tensile if it contracts. This stress resulting from temperature change is known as thermal stress. It can be quite large and can cause damage. To avoid this stress, engineers may design components so they can expand and contract freely. For instance, on highways, gaps are deliberately...
01:14Mechanisms of Heat Transfer I
Just as interesting as the effects of heat transfer on a system are the methods by which the heat transfer occur. Whenever there is a temperature difference, heat transfer occurs. It may occur rapidly, such as through a cooking pan, or slowly, such as through the walls of a picnic ice box. So many processes involve heat transfer that it is hard to imagine a situation where no heat transfer occurs. Yet, every heat transfer takes place by only three methods: conduction, convection, and radiation.
01:20Mechanisms of Heat Transfer II
In convection, thermal energy is carried by the large-scale flow of matter. Ocean currents and large-scale atmospheric circulation, which result from the buoyancy of warm air and water, transfer hot air from the tropics toward the poles and cold air from the poles toward the tropics. The Earth’s rotation interacts with those flows, causing the observed eastward flow of air in the temperate zones. Convection dominates heat transfer by air, and the amount of available space for the airflow...
01:14Mechanisms of Heat Transfer
Heat transfer between the human body and its environment occurs through four main mechanisms: conduction, convection, radiation, and evaporation.
Conduction, accounting for approximately 3% of body heat loss at rest, is the process of exchanging heat between molecules of two materials in direct contact. This can result in both heat loss and gain. For instance, when the body is submerged in water, which conducts heat 20 times more effectively than air, it can either lose or gain significant heat.
Conduction, accounting for approximately 3% of body heat loss at rest, is the process of exchanging heat between molecules of two materials in direct contact. This can result in both heat loss and gain. For instance, when the body is submerged in water, which conducts heat 20 times more effectively than air, it can either lose or gain significant heat.
01:28Major Losses in Pipes
When a fluid flows through a pipe, it experiences energy losses due to frictional resistance along the pipe walls, known as major losses. These energy losses result in a pressure drop, which varies based on the flow conditions — whether laminar or turbulent — and the specific physical properties of the fluid and pipe.
Fluid flow can be classified as laminar or turbulent, primarily based on the Reynolds number. This dimensionless number reflects the relative influence of inertial to viscous...
Fluid flow can be classified as laminar or turbulent, primarily based on the Reynolds number. This dimensionless number reflects the relative influence of inertial to viscous...