Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 19 of 19 for “"Other Civil Engineering"”.
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A novel direct shear apparatus to evaluate internal shear strength of geosynthetic clay liners for mining applications
The use of geosynthetic clay liners (GCLs) in engineering practice has grown extensively over the past three decades due to application of this material containment applications such non-hazardous solid waste, residential and commercial wastewater management, roadways, and other civil engineering …
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Decision Making in Fire Risk Management
Various normative decision theories are discussed in the context of fire risk management. A method suitable for practical decision making in respect to fire safety investments is presented and exemplified. The method involves the use of second-order probabilities to represent uncertainty regarding …
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Exploring Disaster Recovery: Stakeholder Interfaces, Goals and Interdependencies
Disaster risk management has seen the importance of coordination at various levels of planning and implementation, ranging from preparedness to disaster response, and in planning for long term recovery and sustainable development. This thesis aims to develop a deeper and analytical understanding of …
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Övertändning, backdraft och brandgasexplosion sett ur räddningstjänstens perspektiv
This report presents a detailed description of the phenomena flashover, backdraft and smoke gas explosion. The physical and chemical processes which are involved in these phenomena are thoroughly discussed. The report also describes a number of compartment fire scenarios which are believed to be …
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Combustion Products from Fires - Influence from ventilation conditions
The production of combustion products is discussed, especially with respect to the influence of ventilation conditions. Results are presented and compared, from different experimental set-ups. Experimental techniques are presented and discussed.
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Flamelet modelling of soot formation in diffusion flames
In this work the steady and unsteady flamelet models have been applied to soot formation in laminar and turbulent diffusion flames. The aim was to study how different model parameters affect soot formation in diffusion flames. It was shown that certain assumptions are more crucial in laminar …
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Demand for Extinguishing Media in Manual Fire Fighting
… has shown that it is possible to use fire safety engineering models to estimate the development of fires on a realistic scale, and the corresponding requirement for extinguishing media. Data from the London Fire Brigade (UK) were used to investigate a possible correlation between the area of the …
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Numerical Modeling of Turbulent Combustion and Flame Spread
… Fluid Dynamics) code and coupled with other CFD sub-models, including the DT (Discrete Transfer) radiation model, EDC (Eddy Dissipation Concept) combustion model, flamelet combustion model, various soot models and transpired wall function. Comprehensive numerical simulations have been …
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Escalation: Explorative studies of high-risk situations from the theoretical perspectives of complexity and joint cognitive systems
The main aim of the research is to explore different aspects of organisational resilience in escalating situations, with an investigation of both theoretical and practical implications. From the platform of an explorative approach, this study makes use of naturalistic research in the domain of …
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Uncertainty in Quantitative Risk Analysis - Characterisation and Methods of Treatment
The fundamental problems related to uncertainty in quantitative risk analyses, used in decision making in safety-related issues (for instance, in land use planning and licensing procedures for hazardous establishments and activities) are presented and discussed, together with the different types of …
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Decision Analysis in Fire Safety Engineering - Analysing Investments in Fire Safety
… the area of decision analysis within fire safety engineering are that it provides a better understanding of the use of different decision analytical approaches in a context such as the present one, that it highlights problems of evaluation when large epistemic uncertainties are present, that it …
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Evaluation and Mitigation of Industrial Fire Hazards
… releases indoors and outdoors using established engineering methods. Investigations have been carried out to find possible methods to simulate detector activation. The temperature, velocity, soot, CO2, CO and oxygen concentration were determined in the plume above a fire. Close agreement was …
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Uncertainty and Risk Analysis in Fire Safety Engineering
… to perform and has been used extensively in many engineering fields. Both QRA methods have been applied to an example, structured with the event tree technique, to determine the risk to patients on a hospital ward. In addition to the two risk analysis methods, separate uncertainty analysis methods …
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Risk and vulnerability analysis in society’s proactive emergency management: Developing methods and improving practices
Risk and vulnerability analyses can play important roles in the society’s proactive emergency management. This thesis addresses two ways of improving the analysis of risk and vulnerability analysis in this context. First, by developing methods for risk and vulnerability analysis of technical …
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Grasping complexity: analysing risk for sustainable development
Sustainable development relies on our ability to make decisions today that will determine our tomorrow. Given that uncertainty is explicitly allowed to influence our view of what the future holds for us, most ex ante analyses of challenges for sustainable development can be viewed as analysing …
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Fire safety evaluation of multifunctional buildings - Special emphasis on antagonistic attacks and protection of sensitive areas
Multifunctional buildings, often hosting societal important functions, have become increasingly more common during the last years. The combination of many functions within the same building as well as an increased exposure to antagonistic attacks create new, not previously well analyzed problems …
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Risk and Vulnerability Analysis of Complex Systems: a basis for proactive emergency management
The present thesis concerns methods and knowledge that are useful when analysing the risks and vulnerabilities of complex systems in a societal emergency management context. Operational definitions of vulnerability and emergency response capabilities are suggested and two methods for analysing the …
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On the Characteristics of Fires in Tunnels
… periods are properties of the system. Other issues discussed include backlayering and the effect of the ventilation on the HRR, flame length, and the conditions in the tunnel. Literature data are, where relevant, compared with the results from the Runehamar tests. In this analysis …