Basic Foam Principles

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فهرست عناوین اصلی در این پاورپوینت

● Objective
● Introduction
● Basic Foam Principles
● Foam Characteristics
● Basic Foam Principles
● Foam and Ethanol and
Ethanol-Fuel Blends
● Foam Recommendations for
Fire Departments
● Summary

نوع زبان: انگلیسی حجم: 0.91 مگا بایت
نوع فایل: اسلاید پاورپوینت تعداد اسلایدها: 32 صفحه
سطح مطلب: نامشخص پسوند فایل: ppt
گروه موضوعی: زمان استخراج مطلب: 2019/06/07 11:43:07

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عبارات مهم استفاده شده در این مطلب

عبارات مهم استفاده شده در این مطلب

foam, fire, fuel, principle, ethanol, basic, effective, ar, alcohol, good, vapor, excellent,

توجه: این مطلب در تاریخ 2019/06/07 11:43:07 به صورت خودکار از فضای وب آشکار توسط موتور جستجوی پاورپوینت جمع آوری شده است و در صورت اعلام عدم رضایت تهیه کننده ی آن، طبق قوانین سایت از روی وب گاه حذف خواهد شد. این مطلب از وب سایت زیر استخراج شده است و مسئولیت انتشار آن با منبع اصلی است.

https://www.ncdoi.com/OSFM/RPD/PT/Documents/Coursework/Ethanol/Module5_FireFightingFoamPrinciplesAndEthanol-Blended.ppt

در صورتی که محتوای فایل ارائه شده با عنوان مطلب سازگار نبود یا مطلب مذکور خلاف قوانین کشور بود لطفا در بخش دیدگاه (در پایین صفحه) به ما اطلاع دهید تا بعد از بررسی در کوتاه ترین زمان نسبت به حدف با اصلاح آن اقدام نماییم. جهت جستجوی پاورپوینت های بیشتر بر روی اینجا کلیک کنید.

عبارات پرتکرار و مهم در این اسلاید عبارتند از: foam, fire, fuel, principle, ethanol, basic, effective, ar, alcohol, good, vapor, excellent,

مشاهده محتوای متنیِ این اسلاید ppt

مشاهده محتوای متنیِ این اسلاید ppt

module ۵ fire fighting foam principles and ethanol blended fuel objective upon the successful completion of this module participants will be able to develop foam use strategies for controlling fighting fires associated with ethanol blended fuels. introduction production of ethanol large likely to continue to increase predominate danger from tanker trucks rail cars carrying large amounts of ethanol manufacturing facilities storage facilities responders need to be prepared for large scale emergencies prepared with most effective techniques extinguishing media basic foam principles what is foam …an aggregate of air filled bubbles formed from aqueous solutions which is lower in density than flammable liquids. it is used principally to form a cohesive floating blanket on flammable and combustible liquids and prevents or extinguishes fire by excluding air and cooling the fuel. it also prevents reignition by suppressing formation of flammable vapors. it has the property of adhering to surfaces which provides a degree of exposure protection from adjacent fires nfpa ۱۱ . basic foam principles why use foam only agent capable of suppressing vapors providing visible proof of security foam blanket on unignited spill can prevent fire suppression of vapors prevents them from finding ignition source basic foam principles why use foam can provide post fire security by protecting hazard until it can be secured removed can provide protection from flammable liquids for fire rescue personnel during emergency operations basic foam principles how foam works foam can exclude oxygen from fuel vapors cool fuel surface with water content of foam prevent release of flammable vapors from fuel surface emulsify fuel basic foam principles how foam works foam tetrahedron before being used must be proportioned aerated ۴ elements foam concentrate water air aeration copyright ۲ ۷ teex esti basic foam principles what is foam not effective on foam is not effective on class c electrical fires foam contains ۹۴–۹۷ water water conducts electricity class c fires can be extinguished using nonconductive extinguishing agents basic foam principles what is foam not effective on foam is not effective on ۳ dimensional fires recommended to first control spill fire extinguish flowing fire using dry chemical agent basic foam principles what is foam not effective on foam is not effective on pressurized gases vapor pressure too high for foam to be effective examples propane butane vinyl chloride butadiene basic foam principles what is foam not effective on foam is not effective on combustible metals combustible metals usually react with water fires involving combustible metals require specialized techniques extinguishing agents basic foam principles what is foam effective on effective at suppressing vapors extinguishing class b fires ۲ categories of class b products hydrocarbons polar solvents hydrocarbons polar solvents basic foam principles foam terminology foam concentrate foam solution finished foam basic foam principles types of foam protein foam fluoroprotein foams afff fffp ar foam basic foam principles foam characteristics knockdown heat resistance fuel tolerance vapor suppression alcohol tolerance foam characteristics property protein fluoroprotein afff fffp ar afff knockdown fair good excellent good excellent heat resistance excellent excellent fair good good fuel tolerance fair excellent moderate good good vapor suppression excellent excellent good good good alcohol tolerance none none none none excellent source national foam basic foam principles foam proportioning delivery systems concentration levels hydrocarbons ۳ polar solvents ۶ foam proportioning systems eductors in line eductors advantages property of chauncey naylor reprinted with permission property of chauncey naylor reprinted with permission basic foam principles foam proportioning delivery systems foam proportioning systems eductors bypass eductors common eductor failures copyright ۲ ۷ teex esti property of chauncey naylor reprinted with permission basic foam principles foam proportioning delivery systems foam proportioning systems foam nozzles foam proportioning nozzles advantages copyright ۲ ۷ teex esti basic foam principles foam proportioning delivery systems foam proportioning systems air aspirating nozzles non air aspirating nozzles copyright ۲ ۷ teex esti basic foam principles application techniques never plunge foam directly into the fuel bounce off effective if there is an object in behind spill area bank in particularly effective with non air aspirating fog nozzles basic foam principles application techniques rain down nozzle elevated foam allowed to fall over spill as gently as possible foam and ethanol and ethanol fuel blends foams not developed for application on alcohol ethanol blended fuels ineffective on fuels containing alcohols ethanol alcohol ethanol attacks absorbs foam solution foam and ethanol and ethanol fuel blends ar foams forms tough membrane between foam blanket alcohol type fuel crucial to use in combating ethanol blended fuel fires apply gently to surface of alcohol ethanol blended fuels foam and ethanol and ethanol fuel blends ar foams use type ii application techniques apply indirectly to fire type iii application effective only when deflected off surfaces best option may be to protect surrounding exposures foam and ethanol and ethanol fuel blends require higher flow rate of foam to extinguish fires afff type ۱ gpm foam ۱ ft۲ burning surface on hydrocarbon type fuel ethanol blended fuels ۲ gpm foam ۱ ft۲ of ar type foam foam recommendations for fire departments consider converting to ar foam concentrates develop means of having cache of ar foam readily available foam recommendations for fire departments ar foams effective on both alcohol hydrocarbon fires some have quicker knockdown abilities longer foam retention times than protein based hydrocarbon foams thermal imaging camera recommended foam recommendations for fire departments copyright erg reprinted from the dot emergency response guidebook http hazmat.dot.gov pubs erg gydebook.htm foam recommendations for fire departments ar foams effective on both alcohol hydrocarbon fires uncertain if fire is alcohol ethanol blended consider doubling application rate foam of choice summary ar foam best choice for incidents ar foam recommended choice for all fuel fires involving gasoline ethanol blended fuels ar foam performs on hydrocarbon fires as well preferred choice from response standpoint if nature of burning fuel is unclear reprinted from the dot emergency response guidebook http hazmat.dot.gov pubs erg gydebook.htm …

کلمات کلیدی پرکاربرد در این اسلاید پاورپوینت: foam, fire, fuel, principle, ethanol, basic, effective, ar, alcohol, good, vapor, excellent,

این فایل پاورپوینت شامل 32 اسلاید و به زبان انگلیسی و حجم آن 0.91 مگا بایت است. نوع قالب فایل ppt بوده که با این لینک قابل دانلود است. این مطلب برگرفته از سایت زیر است و مسئولیت انتشار آن با منبع اصلی می باشد که در تاریخ 2019/06/07 11:43:07 استخراج شده است.

https://www.ncdoi.com/OSFM/RPD/PT/Documents/Coursework/Ethanol/Module5_FireFightingFoamPrinciplesAndEthanol-Blended.ppt

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