We can work on Tenability criteria that is commonly used in the computational fluid dynamic

(Q1) List and explain the tenability criteria that is commonly used in the
computational fluid dynamic (CFD) models by fire engineering design
approach for the ASET study in accordance with the Hong Kong FS
Code (Code of Practice for Fire Safety in Building 2011). Please also try
to explain the impacts of the fire on the human body on the basis of the
criteria you listed above.
(Q2) A compartment with the following data is subjected to a fire. The
compartment located in remote area is designed as office usage. The
following information is given:
 Automatic smoke alarm is provided;
 No independent water supplies are provided;
 No firefighting devices are provided;
 The office is made of concrete, ρ=2500kg/m3
; cp=980J/kgK;
k=1.5W/mK;
 There are two ventilation openings on the walls. The dimensions
(breadth x height) are 3.6m x 1.5m for Opening 1 and 7.2m x
1.5m for Opening 2;
 The breadth x length x height of the compartment is 7m x 14m
x3m;
 Use Annex E of the Eurocode 1(Part 1-2) to determine the fire
load density (MJ/m2
) incorporating appropriate factor of safety.
Plot the temperature-time curve of the compartment fire for this office.
(Q3) The wall of an industrial furnace is constructed from 150mm thick fireclay
brick having a thermal conductivity k=1.7W/mK. Measurements make
during steady state operation reveal temperatures of 1400K and 1150K
at the inner and outer surfaces, respectively. What is the rate of heat
loss through a wall that is 500mmx1200mm on a side?
(Q4) Discuss and compare the ‘standard temperature-time curve (ISO834)’
and the ‘parametric temperature-time curve (based on EN 1991-1-2)’.
Assume that you are a fire engineer for a design task of structural fire
resistant design in several compartment fire scenarios. How do you plan
to incorporate both aforementioned fire curves in your work?
(Q5)
(a) Calculate the heat of combustion (∆Hc) of methanol (CH3OH) in
liquid form for complete combustion based on the given data on
heat of formation (∆Hf)
(b) Write down the chemical reaction for incomplete combustion of
methanol with CO and water vapour as products and hence
estimate related heat released per mole of methanol consumed
3
(c) Discuss the errors for estimating possible heat released in real fire
cases based on the results in part (a) and (b) with related
assumptions

Sample Solution

Under Art. 20 TFEU , Bjarne is an EU citizen as he is a Swedish national. He also comes under the definition of a ‘family member’ to Charlotte in Article 3 (2) (a) of the Directive 2004/38 . He is 11 years old and has learning difficulties which means he is a “dependant direct relative” of Charlottes under Article 3 (1) (d) . As he is an EU citizen, he is also entitled to free movement. He has the right of residence in any Member State for up to three months without any conditions. He has been able to stay for the 4 years as he is a dependant family member of Charlottes which means he has the right to stay in London as long as she is. He is entitled to all the rights set out in Article 20 (2) TFEU and 21 TFEU . Most importantly, Bjarne is entitled to equality in terms of social right under the Regulation 492/2011 which means he is entitled to go to the special needs school. Article 18 TFEU prohibits any discrimination on the grounds of nationality. Article 24 (1) of the Directive 2004/38 states “all Union citizens residing on the basis of this Directive in the host Member State shall enjoy equal treatment with the nationals of that Member State.” This suggests he is entitled to the equal treatment of being able to attend the special needs school regardless of the requirement as it wouldn’t apply to British nationals. The principle of equal treatment is set out in Art 24 (1) of Directive 2004/38 which states “all Union citizens residing on the basis of this Directive in the territory of the host Member State shall enjoy equal treatment with the nationals of that Member State”. In the case of Inzirillo v Caisse d’Allocations Familiales de l’Arrondissement de Lyon the Court of Justice held that an allowance for disabled adults that a Member State awarded to its own nationals constituted to a social advantage to which an EU national should be equally entitled under such circumstances. The facts included that the EU citizen could apply on behalf of the family member. Although in the case the person was an adult, the principle is still the same that Charlotte is applying on behalf of her brother due to his age. Article 14 (4) (b) of the directive covers that the host State is not obliged to grant social assistance to the members of the Union worker in the first three months of residence. This is not applicable to Bjarne as he has been living in London for the past 4 years so the State is able to acquire him with social assistance.>

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