Lawrence Webster Forrest (LWF), Fire Engineering and Fire Risk Management Consultants
Lawrence Webster Forrest (LWF), Fire Engineering and Fire Risk Management Consultants



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Freephone: 0800 410 1130
E-mail: fire@lwf.co.uk

Fire Safety Blogs

Page 113 of 119

Computational Fluid Dynamics (CFD) Modelling - A Fire Engineering Approach

Posted by LWF: 26/11/2013 11:22

Computational Fluid Dynamics (CFD) is a tool widely used by fire safety engineers, working with architects and designers, to demonstrate that the proposed building design achieves adequate fire and evacuation safety, in accordance with the Building Regulations.CFD is one of the branches of fluid mechanics that uses numerical methods and algorithms to solve and analyze problems that involve fluid flows. The first use of Computational Fluid Dynamics models to solve fire related problems can...

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ASET vs RSET Part Two| Timings of Required Safe Egress Time

Posted by LWF: 18/11/2013 17:33

In our last blog article, we looked at ASET (Available Safe Egress Time) and how this can be manipulated to your advantage using Fire Safety Engineering. Now, we will look at the Required Safe Egress Time (RSET) in order to determine exit strategy safety for your build, and compare the two results.Required Safe Egress TimeWhen quantifying the RSET, three components must be considered:• detection time• pre-movement time•

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ASET vs RSET Part One| Available Safe and Required Safe Egress time comparison

Posted by LWF: 15/11/2013 15:55

Spaciousness and flexibility are key elements of modern architecture. Open plan living, open plan working and large un-divided spaces offer the possibility for tailor made interior designs and flexible use for the entire lifetime of a building. With regards to fire safety, this design philosophy often conflicts with prescriptive regulations, as prescriptive guidance documents are intended to provide guidance for some of the more common building situations. Traditionally, prescriptive design is based on passive fire...

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High ceiling clearance space - Pt 2 - Sprinkler System applicable guidelines and solutions

Posted by LWF: 07/11/2013 11:57

In last week’s blog article, we looked at the challenges of incorporating fire sprinkler protection into fire safe building designs with high ceiling clearance space. In part two, we take a look at the published guidance and building codes relating to buildings with high ceiling clearance and put forward some suggestions as to solutions that could be employed.Guidance applicable to high ceiling clearanceFire guidance and national building codes within Europe, which relate to...

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High ceiling clearance space | Pt 1 - The challenges of effective fire protection through sprinklers

Posted by LWF: 29/10/2013 11:36

Modern architecture for buildings such as shopping malls, public concourses, atrium spaces etc. has led to increasingly high ceiling clearance spaces. A standard installation of sprinklers in ceilings such as these can cause issues. The sheer amount of space between the source of the sprinkler system and the base of the fire (most commonly on the ground) means that ineffectiveness of fire suppression becomes a real issue.The decision on sprinklers is an important one....

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FIRE SAFETY BLOGS

  • Fire Engineering Design and Risk Assessment - Firefighting & External Water Supplies - Part 33

    In LWF’s Fire Engineering blog series for Architects and others in the building design business, we have been looking at firefighting and the associated provisions that need to be made for the Fire Service. In part 32, we looked at the standards for wet and dry mains given in Approved Document B and BS 9999. In part 33, we consider dry mains in more detail.A dry rising main is comprised of pipework installed vertically...

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  • Fire Safety for Healthcare Premises - Fire Safety Policies - Part 67

    In LWF’s blog series for healthcare professionals, the aim is to give information on best practice of fire safety in hospitals and other healthcare premises. In part 66, we were discussing how fire safety policies should be formed and finished by noting that consultation with all types and levels of staff in a healthcare setting is necessary to ensure a considered and cohesive fire safety policy. In part 67, LWF will continue looking at fire...

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  • Facilities Management & Fire Safety - Insurers & Property Protection - Part 14

    LWF’s blog series for those who work in Facilities Management, or who have an interest in or responsibility for fire safety has been looking at the impact of the insurer on property protection from fire. In part 13, while acknowledging there are significant areas of overlap between life safety and property protection measures, we began to look at those areas where measures taken to protect property from fire would not benefit life safety aims, and...

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  • Fire Engineering Design and Risk Assessment - Firefighting & Internal Water Supplies - Part 32

    In LWF’s Fire Engineering blog series for Architects and others involved in the building design business, we have been looking at fire safety engineering and, most recently, firefighting. In part 31, we looked at the recommendations made regarding water capacity for any open water used for firefighting purposes and discussed relaying water to the place of fire origin. In part 32, we look at internal water supplies designed for the purpose of firefighting.Fire mains...

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  • Fire Safety for Healthcare Premises - Fire Safety Policies - Part 66

    In LWF’s blog series for healthcare professionals, our aim is to give information on best practice of fire safety in hospitals and other healthcare premises. In part 65, LWF considered some of the many important elements when considering general fire safety in a healthcare building, including the provision of alternative escape routes and the potentially unpredictable nature of human behaviour in a fire situation. In part 66, we look at fire safety policies.Clearly-defined fire...

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Case Studies

Duke of York, Victoria Street, London
The Duke of York is a busy pub in central London, used by commuters and theatre-goers alike.  In 2013, the pub was demolished in order to facilitate the London Underground Victoria Station Upgrad...

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General Bulletins

Fire - The External Risk
When we consider fire safety, our focus is normally from within, what can we do to prevent the occurrence of fire and how we can limit its damage.  Whilst this is the correct stance to take, we m...

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Technical Bulletins

Evacuation Modelling - Factor in Human Behaviour
Evacuation of buildings can be analyzed in different ways. Approved Document B (ADB) which provides guidance on meeting the requirements of the England and Wales Building Regulations with regard to fi...

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