spill models

7/25/2019 spill Models

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Spill models


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SPILL (Shaw and Briscoe., 1980)

The SPILL model was developed b !he Sa"e! and #eliabili!$irec!ora!e (S#$) "or !he %eal!h and Sa"e! &'ec!ive (%S&), *.

This model is si!able "or li+id pools o" croenic and pressri-edli+id releases on bo!h land (concre!e and soil) and wa!er.

Bo!h ca!as!rophic "ailre and minor con!ainmen! "ailre is

considered where !he ra!e o" release o" li+id is ins!an!aneos andcon!inos


3/11

$#I/S ($rivas.,1990)

This model calcla!es !he evapora!ion ra!es o" individalcomponds in a ml!i componen! li+id mi'!re.

I! "ocses on !he evapora!ion o" conned spills.

I! calcla!es !o!al evapora!ion ra!e, li+id composi!ion and vaporcomposi!ion


4/11

GASP (Webber., 1990)

This model was developed b !he Sa"e! and #eliabili! $irec!ora!e (S#$) "or!he %eal!h and Sa"e! &'ec!ive (%S&). I! accon!s "or bo!h con!inos andins!an!aneos spill over land and wa!er.

/SP model cons!i!!es !hree sb models sch as spreadin model, hea!!rans"er model and vapori-a!ion model


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234/T 5$ (*a!al e! al.,1991)

This is one o" !he inl!ra!ion models, which is mchnecessar in nders!andin !he spill impac! o" ha-ardossbs!ances on land.

The model is a 5$ ni!e elemen! model which accon!s"or bo!h sa!ra!ed and nsa!ra!ed poros media.

The model consis!s o" sb modles sch as 7ow modleand !ranspor! modle.


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%SS2 (eaver e! al.,199)

This model is also one o" !he inl!ra!ion models which are par!iclarl si!able "or

$:/LPL.

The model is sed !o es!ima!e !he "a!e and !ranspor! o" L:/PL in sbsr"ace andrond wa!er.

The sbsr"ace is assmed !o homoenos inorin !he la!eral spreadin.

The !ranspor! o" L:/PL inside !he soil is considered as 1;dimensional.

The model is se"l "or

Trac


7/11

L&3:&LLI (Leonelli.,199)

This model es!ima!es evapora!ion ra!es accon!in "or bo!h ideal andnon;ideal li+id mi'!res in boilin or evapora!ive condi!ions.

I! is si!able "or bo!h conned and nconned sr"ace and also handlesins!an!aneos and con!inos releases.

The pool is modeled in !wo was=

The pool is assmed !o be well mi'ed a! ni"orm !empera!re.

The pool is "ormed b well mi'ed bl< and ver !hin sr"ace laer,havin di>erence in sr"ace and bl< !empera!re.

This model consis!s !wo sb;models spreadin model and vapori-a!ionmodel.


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LS2 90 (?avanah e! al., 199)

LS290 model was developed b &''on !o model siml!aneos spreadinand vapori-a!ion o" ml!i;componen! spills on wa!er and land sr"aces.

LS290 onl considers onl con!inos releases o" ideal mi'!res.

Weakness:

The model canno! !rea! non; ideal li+ids.

5. The model does no! accon! !empera!re varia!ions.


9/11

OILSFSM (Hussein et al., 2001)

3ILS4S2 is a screenin model "or predic!in !he sr"ace 7ow o" oilb considerin inl!ra!ion and evapora!ion.

Sr"ace 7ow is simla!ed b semi anal!ical model (ravi! crren!s)

considerin viscos "orces. Inl!ra!ion is simla!ed b reen;/mp!inl!ra!ion model and evapora!ion is calcla!ed b composi!ionalmodel which accon!s "rac!ional chanes o" each compond.

This model is si!able "or permeable sr"aces and i! can model bo!h

con!inos and ins!an!aneos sorces.

The 3ILS4S2 consis!ed o" !hree modles sch as sr"ace 7owmodle, inl!ra!ion modle and evapora!ion modle.


10/11

#&/?TP33L (*apias T. and ri@!hs #.4.,5001)

This is one o" !he pool models describes !he "ea!res o" poolbehavior which is predominan!l modeled "or acciden!alreleases "or S3Aand olem,

B! i! can be applied "or o!her li+ids irrespec!ive o" vola!ili!and reac!ivi!.

The model is si!able "or ins!an!aneos and con!inosreleases.


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P/P (P%/ST) (i!lo'., 5008)

P/P o" P%/ST was developed as commerciall available

so"!ware b $e! :ors

spill models

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