(Tick in the appropriate box)
You are encouraged to word process your assessment, although hand
written work is acceptable.
You are required to word process this assessment.
You are required to submit this assessment electronically through WebCT
This assignment contains one task.
Answer the questions / complete the tasks fully with all possible
evidence for achieving the learning outcome/s.
Your report should provide necessary citations and references.
Referencing should be done in Harvard Referencing System. Cross
referencing is to be followed, wherever needed, failing to which mark
will be deducted accordingly.
This assessment is worth 50 % of the module mark.
Please do not submit this assessment brief with your work.
Page 2 of 7
Task – 1 (35 Marks)
Choose any fire incident in a building , of your choice, that happened in the past and
write a case study keeping the following points in mind.
a) All possible details of the fire incident in the building mentioning introduction to
fire scenario, causes that led to the severe consequences etc.
b) The flaws/problems associated with means of escape. Also explain how
egress measures / evacuation concepts, if implemented, could have reduced
the severity of the fire incident
Task – 2 (20 Marks)
FED has become a useful tool in combustion toxicology for the calculation of
lethal toxic potencies from product analysis data.
Assume that in a reconstructed fire incident by a team Forensic Consultants
and Engineers has recorded the following toxic products for 30 minutes [table
1] exposure. You have to choose any four toxic concentration from the table.
Use the following formula
and calculate the FED and determine whether the fire victim is exposed to FED LC50
Page 3 of 7
Table of primary fire gas toxicities
Formula Gas Assumed
CO2 carbon dioxide 50,000
C2H4O acetaldehyde 25,000
C2H4O2 acetic acid 5,000
NH3 ammonia 12,000
HCl hydrogen chloride 6,700
CO carbon monoxide 1,000
HBr hydrogen bromide 1,000
NO nitric oxide 3,500
COS carbonyl sulfide 2,000
H2S hydrogen sulfide 4,000
HF hydrogen fluoride 1,000
C3H4N acrylonitrile 1,000
COF2 carbonyl fluoride 1,750
NO2 nitrogen dioxide 1,500
C3H5O acrolein 22,300
CH2O formaldehyde 2,250
SO2 sulfur dioxide 2,450
HCN hydrogen cyanide 1,355
C9H6O2N2 toluene diisocyanate 2,100
COCl2 phosgene 908
C4F8 perfluoroisobutylene 65
Page 4 of 7
Task – 3 ( 30 marks)
See the below picture, Assume a fire incident happened in an atrium similar to this.
Ref: https://commons.wikimedia.org/wiki/File:Debis-Haus.Berlin.Atrium.jpg/ accessed April 2016
a) Comment on principles of smoke movement in the atrium.
b) Also suggest smoke management measures in the atrium.
Students should get approval from module tutor in advance on the selected
Approximate word count for the report – 3000 words
The report must be written in the proper format
Your report should provide necessary citations and references. Referencing
should be in Harvard Referencing System. Cross referencing is to be followed.
Failing to which mark will be deducted accordingly.
Collusion and plagiarism will be dealt seriously as per university rules.
Page 5 of 7
Task Description Marks
a) Introduction – Fire incident
b) Emergency escape criteria – flaws
ergency escape criteria – Suggestions
FED calculation and result analysis 20
a) Smoke movement principles 15
b) Smoke management measures 15
Overall Presentation 10