ارزيابي ريسک و تحليل پيامد حريق و انفجار در يک مخزن وينيل کلرايد با استفاده از نرم افزار PHAST
ارتقای ایمنی و پیشگیری از مصدومیت ها,
دوره 8 شماره 4 (1399),
30 January 2021
,
صفحه 218 - 208
https://doi.org/10.22037/meipm.v8i4.30783
چکیده
سابقه و هدف: آتشسوزي و انفجار از مهمترين و رايجترين پيامدهاي ناگوار رهايش مواد شيميايي به شمار ميروند. هدف اين مطالعه ارزيابي ريسک و تحليل پيامد حريق و انفجار در يک مخزن وينيل کلرايد با استفاده از نرمافزار PHAST بود.
روش بررسي: در اين مطالعه کاربردي، حريق و انفجار ناشي از 16 سناريوي رهايش مواد با استفاده از برنامه نرمافزاري PHAST 7.11 بررسي شد. دما، فشار، حجم و شکل مخزن به ترتيب 70 درجه سانتيگراد، 9 بار، 3600 مترمکعب و کروي بود. طبقهبندي شرايط جوي بر پايه جدول پاسکوييل انجام شد. درصد مرگومير و شعاع خطر در هر يک از سناريوها محاسبه و تحليل شد.
يافتهها: کمترين (11متر) و بيشترين (79متر) شعاع تحت تأثير موج فشار ناشي از انفجار به ترتيب مربوط به نشتي 50 ميليمتري و پارگي کامل بود. بيشترين موج فشار ايجادشده (يکبار) در پارگي کامل مخزن در فاصله بين 0 تا 80 متري از مرکز ابر بخار بود که باعث درصد مرگومير افراد روز کار و شبکار به ترتيب 27/10 و 57/2 درصد خواهد بود. بيشترين و کمترين مساحت تحت پوشش آتش فوراني که باعث مرگومير ميشود به ترتيب مساوي 1861 و 185 مترمربع بود. بيشترين و کمترين پوشش گرماي تابشي ناشي از اين حريق به ترتيب مساوي 4/59 و 4/20 متر از مخزن بود.
نتيجهگيري: هرگونه نشتي احتمالي از مخزن موردمطالعه، پيامدهاي فاجعه باري دربر خواهد داشت که نشاندهنده وجود سطح ريسك بسيار بالا و غيرقابلقبول است. درنتيجه با در نظر گرفتن سطوح آسيب ناشي از موج انفجار و نتايج بهدستآمده پيشنهاد ميشود که برنامهريزي لازم جهت پيشگيري از اين پيامدها در اين صنايع انجام شود.
How to cite this article: Bahmani R, Pouyakyan M, Khodakarim S, Bidel H, Salehi-Sahlabadi A, Jafari MJ. Risk Assessment and Consequence Analysis of Fire and Explosion in a Vinyl Chloride Monomer Tank by PHAST. J Saf Promot Inj Prev. 2021; 8(4):208-18.
- پیامد، مخزن، حریق، انفجار، ریسک، مواد رها شده
ارجاع به مقاله
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- چکیده مشاهده شده: 453 بار