FV2204: Computational Engineering - IT Assignment Help

Assignment Task:

Task:

Aims of Assessment
• To encourage you to précis information from books and lectures.
• To assess your knowledge and understanding of quantitative hazard analysis of fires with modelling
• To assess your knowledge and understanding of using CFD for analysis of fire risks
• To assess your ability to integration of CAE methods for fire safety design
 

Learning Outcomes
This piece of assessment will test your ability to meet learning outcomes 4~6 as described in your module booklet: -
• Demonstrate the use of problem solution tools and evaluative skills in the selection of appropriate methods of analysis
• Formulate problems of fire risk analysis and solve common types of these problems on computers
• Gain experience of using specialist software for computational engineering

Assignment Details – Answer ALL Questions
In the revitalization of a heritage building, the purpose of the building is usually changed. Therefore, the fire safety provisions of the building should be upgraded to meet the current statutory requirement. However, the existing design of the heritage building usually restricts the compliance to the current statutory requirements. Performance-based fire safety engineering approach is adopted for the design of the building.

A heritage private study hall with 100 years is proposed to be converted to an exhibition center. It is a two-storey building with an internal staircase. The layouts of the heritage building are shown in the attached figures (Figure 1 to Figure 3). The ground floor of the building will be an Exhibition Hall (see Figure 1). The first floor will be changed to Office usage (see Figure 2). You, as a fire safety engineer, are required to apply the performance-based fire safety engineering approach to change the heritage building from private study hall to exhibition center.

Each student needs to complete the following tasks:
1. CFAST is a zone model that divide the compartment into two control volumes, a relatively hot upper layer and a relatively cool lower layer, please derive the upper layer volume differential equation. Each student shall use CFAST to simulate the impact of fires and smoke in the building environment for 10 minutes duration. The smoke layer height, smoke temperature and gases concentration of the fire compartments shall also be reported. (30 Marks)

2. Each student shall also use the Fire Dynamics Simulator (FDS) to predict the following for 10 minutes duration: (40 Marks)
• Temperature distribution;
• CO concentration;
• Soot visibility distribution;
• Radiation heat flux along the egress route.
3. Based on the FDS result, please comment whether the proposed building design retains its fire safety level equivalent to prescriptive requirements. You are also requested to advise the solution to enhance the fire safety level of this building. (30 Marks)

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