HAZID WORKSHEET. Project: ANOA PHASE 4 – AGX COMPRESSION RECONFIGURATION PROJECT Node Description: DLB Activities in the vicinity and. As a result of the HAZID, 80 identified hazards in total were .. the workshop were also recorded relevantly in the HAZID worksheet by an. The HAZID study achieved its aim of identifying the nature and scale of hazards that Attachments: Power Plant Risk Register Spreadsheet.
|Published (Last):||5 July 2009|
|PDF File Size:||11.97 Mb|
|ePub File Size:||5.49 Mb|
|Price:||Free* [*Free Regsitration Required]|
Under “Enabled Features”, you should see “Advanced” as shown here: Further details of a particular method are published by the IAEA see below.
A clear understanding of all the possible event chains leading to the most critical accident scenarios is needed to mitigate for example, the complexity of any plant and its operation, which nevertheless exposes it to any number of accident scenarios from interrelated systems which could provoke failure or domino effect from other systems, components or structures located within the proximity effecting the safe operation of the plant. There may be more than one way in which this can be achieved.
If a PSA is not used to demonstrate the absence of an adverse cliff edge effect either an approximate PSA approach may be undertaken a NUREG describes a technique for earthquake hazard or a deterministic-plus-engineering judgment approach may be made. To check if you have the Advanced features, follow these steps: Sensitivity studies It should also be borne in mind that forecast climate change is likely to have an impact on many of the external hazards addressed here.
Where this is not feasible in the case of existing facilities, the risk must be shown to be tolerable and ALARP.
The design basis analysis principles and the PSA principles should be satisfied, as appropriate, taking into account the direct impact of the aircraft on the structures, systems and components important to safety, secondary missiles, vibration effects and the effects of aircraft fuel burning externally to the buildings or other structures, or entering the buildings or structures.
If you want your ex-girlfriend or ex-boyfriend to come crawling back to you on their knees no matter why you broke up you need to watch this video right away This can be due to external explosions and overpressures giving rise to shock loading and drop loads or impacts due to facility collapse, which may include cranes, building structures and systems.
Licensees, any particular application should be assessed to ensure that there are no plant specific, i. Also, you can set the cutoff for which hazards are added to the BowtieXP case file under settings. The procedure of hazard identification is broken down and categorised into the two streams that can affect the system both directly and indirectly, and is referred to as Internal Hazards and External Hazards.
Different hazard potentials have different colors. Share information about chemical engineering knowledge. As noted above, however, the detail of the approach needs to be appropriate to the nature of the hazard being addressed. Macros have been disabled. In assessing safety systems claimed to mitigate the effects of external hazards, the assessor should have due regard to Reliability, redundancy, diversity and segregation.
It should also be borne in mind that forecast climate change is likely to have an impact on many of the external hazards addressed here.
HAZID – HAzard IDentification Studies
Here the Licensee should consider the withstand to shock loading, the possible impactors to the system from the facility, determining the largest single mass object from its potential drop height in free fall without structural interaction, or hazidd a case for the probable but bounding collapse dynamics of the facility which can in some cases include structural interaction.
It can be assumed that there will be at least several hours notice of extreme conditions developing, and often several hzid.
This file originated from an Internet location and might be unsafe. If so, the assessor should be satisfied that this is justified. Any structure which is shown to be vulnerable to wind loading should be considered from this point of view and in addition the potential for damage from windborne missiles must be considered.
Ductility is increasingly being required by nuclear and non-nuclear structural seismic design standards even where the structure is designed to remain elastic under the design earthquake loads.
Licensees should be expected to take the latest available predictions over the projected life of the facility, which may need to include the decommissioning phase of the installation in the submissions.
Most UK workxheet facilities are potentially subject to flooding both by extreme precipitation directly onto the site, and indirectly from rivers and the sea. Newer Post Older Post Home. Subscribe in a reader. This long period ground motion hazard may be considered separately from the design basis spectra, being a separate, infrequent hazard. For each of the risk matrices, the severity is the worst that can happen when the top events occur, for each of the categories.
Cliff edge The Licensee will also need to demonstrate that there will not be a disproportionate increase in risk from an appropriate range of events which are more severe than the design basis workshfet.
For example in the case of sea flooding, extreme wind not workdheet affects wave heights but can also elevate still sea levels through storm surge. Typical hazards, which may arise from industrial plants, may be from stored gas, fuel, explosives, pressure vessels or turbine disintegration. Solar flare effects have been known to cause problems on long transmission lines at high haaid in Canadabut on current knowledge are not expected to cause significant effects at the lower latitudes of the UK with its shorter transmission lines.
For aircraft crash structural demand depends on the mass, rigidity, velocity and engine location of any aircraft assumed to impact directly or skid onto the structure, and also the angle of incidence of the impact direct or skidding.
HAZID Hazard Identification ~ Chemical Engineering Processing
Such spectra have been used for the design of new plant and for the design basis assessment of existing plant. High temperatures are a potential challenge to electrical equipment which may have essential safety functions. Seismic Seismic hazard definition should include a reasonable frequency distribution of accelerations, i.
A wind load reduced from one in fifty years to one in two years has been used for the design of some facilities, and is broadly consistent with the foregoing time at risk considerations. More recently uniform hazard spectra UHS have also been derived. The severity indicates the possible extent of damage; the frequency indicates how often this happens. Liaison concerning flying restrictions around nuclear licensed sites is handled by NSD’s Strategy Unit.
In the case of external flooding, for example, the site defences become overtopped.