Course syllabus
Konsekvensberäkningar
Consequence Analysis
VBRA10, 7,5 credits, G1 (First Cycle)
Valid for: 2017/18
Decided by: PLED BI/RH
Date of Decision: 2017-04-03
General Information
Elective for: BI3, RH4
Language of instruction: The course will be given in Swedish
Aim
The course will provide an introduction to the field of
Consequence Estimations, within the fire-engineering operational
field. It will also form a valuable complement to the course, "Risk
Analysis Methods", insofar as the consequences of undesirable
leakages of gases and liquids are concerned.
Learning outcomes
Knowledge and understanding
For a passing grade the student must
- be able to estimate the magnitude of undesirable leakages of
gases and liquids, vaporisation of liquids, and fire occurrences in
liquids and gases.
- be able to describe the evolution of leakages of gases and
liquids; spreading of gases.
Competences and skills
For a passing grade the student must
- be able to estimate the consequences of undesirable escapes of
gases and liquids.
- be able to utilise applicable computation methods (manual and
computer-based models) for consequence assessments of undesirable
escapes of gases and liquids.
- be able to apply computation models for undesirable escapes of
gases and liquids in disasters and risk events.
- be able to report and discuss the consequences of undesirable
escapes of gases and liquids with persons of similar
background.
- be able to select and utilise existing computer programs to
solve problem components, and be familiar with the range of
application and limitations of these programs, and how the results
are interpreted and reporte
Judgement and approach
For a passing grade the student must
- be able to demonstrate capability for making assessments with
regard to the relevant scientific, community-related, and ethical
aspects.
- be able to demonstrate insight into the possibilities and
limitations of the subject field.
- be able to demonstrate capability for identifying his/her needs
for further knowledge and for ongoing improvement of his/her
competence
Contents
The course consists of lectures, computational sessions,
computer exercises, and assignments. During the lecture periods,
extracts of the course literature is discussed, with the aid of
theory review, examples of calculations, and presentations on
disasters that have occurred.
Computational sessions are computation exercises in which the
student performs independently a set of given assignments that must
be solved using manual computation models. These exercises offer
access to tutoring.
In addition to the manual computation models, computer-based
computation models are also used. The students get to familiarise
themselves with these during the computer exercises in which given
assignments are solved. The assignments are solved individually
with the help of tutors.
Handed-in assignments constitute one of the elements in the
course. The first one comprises an abstract and involves the
student reading a scientific article that is relevant to the field,
and then individually writing a summary of this article. The second
assignment comprises a computation assignment in which the student
solves a given problem with the help of knowledge gained from the
course, and also manual computations and computer models. The
following sub-fields are covered in the course:
- Environment and safety legislation, including EU
directives.
- Knowledge of chemical preparations. Dangerous properties of
chemicals. Condensed toxic gases.
- Consequence analyses. Estimation of the consequences of
undesirable leakages of gases and liquids. Computation methods for
leakage rate (source intensity), flashing, vaporisation, fires in
liquid pools, heating-up of containers, flame jets, gas spreading
(neutral and heavier-than-air gases), vapour cloud explosions, and
tank rupture, as well as effect models. Computation methods cover,
in part, manual computation methods and, in part, use of computer
programs.
Examination details
Grading scale: TH - (U,3,4,5) - (Fail, Three, Four, Five)
Assessment: The examination is given individually and consists of approved solutions to assignments, as well as written examinations consisting of both theory-related issues and problem solving. Final certification is based on the results of written examinations.
The examiner, in consultation with Disability Support Services, may deviate from the regular form of examination in order to provide a permanently disabled student with a form of examination equivalent to that of a student without a disability.
Admission
Required prior knowledge: VBR022, VBRF20 Fire Chemistry and Explosions, VBRF10 Fire Dynamics.
The number of participants is limited to: 60
Selection: Credits remaining for the degree.
The course might be cancelled: If the number of applicants is less than 12.
The course overlaps following course/s: VBR100, VBR230
Reading list
- Fischer, S. m fl: Vådautsläpp av brandfarliga och giftiga gaser och vätskor. FOA, 1998, ISBN: ISSN: 1104-9154.
- Lag om skydd mot olyckor, SFS 2003:778. Can be downloaded from: www.lagrummet.se.
- Förordning om skydd mot olyckor, SFS 2003:789. Can be downloaded from: www.lagrummet.se.
- Lag om åtgärder för att förebygga och begränsa följderna av allvarliga kemikalieolyckor, SFS 1999:381. Can be downloaded from: www.lagrummet.se.
- Förordning om åtgärder för att förebygga och begränsa följderna av allvarliga kemikalieolyckor, SFS 2015:236. Can be downloaded from: www.lagrummet.se.
- Lag om brandfarliga och explosiva varor, SFS 2010:1011. Can be downloaded from: www.lagrummet.se.
- Förordning om brandfarliga och explosiva varor, SFS 2010:1075. Can be downlaoded from: www.lagrummet.se.
- Allmänna råd om skyldigheter vid farlig verksamhet, MSBFS 2014:2. Can be downloaded from: www.lagrummet.se.
- Föreskrifter om åtgärder för att förebygga och begränsa följderna av allvarliga kemikalieolyckor, inklusive Konsekvensutredningen, MSBFS 2015:8. Can be downloaded from: www.lagrummet.se.
- Andersson, B.: Karakteristiska egenskaper hos kemikalier, stencil. Brandteknik, 2005.
- Farligt ämne, klor, ammoniak, svaveldioxid och propan, utdrag ur RIB.
- Andersson, B.: Utdrag ur: Introduktion till konsekvensberäkningar, några förenklade typfall. Brandteknik, LTH, 1992.
- Pasquill´s stabilitetsklasser och andra tabeller, stencil. Brandteknik.
Contact and other information
Course coordinator: Professor Patrick van Hees, patrick.van_hees@brand.lth.se
Further information: Single elements can be given in English