Chemical Powder Fire Extinguishing System

Algerian Petroleum Institute I.A.P Spa.

Skikda School


Realized by
Asanza EdySeptember 2012
Table of Contents

I. Introduction……………………………………………………………………….4
II. Plant Description……………………………………………………………….....5
i. Overview…………………………………………………………...5
ii. Plant´s location in the map………………………………………...6
III. Units ofproduction……………………………………………………………….7
i. Drawings…………………………………………………………………...7
ii. Description of the Process............................................................................7
iii. Decarbonization - section 11……………………………………….9
iv. Dehydration and hg - section 12…………………………………..10
v. Liquefaction and compression - section 13………………………..11
vi. Fractionation - section 14…………………………………………12IV. The LNG storage…………………………………………………………………14
V. Security of LNG and related accidents………………………………………….14
VI. Foam for fire extinguishing system……………………………………………...14
vii. Functioning as an extinguishing agent…………………………….14
viii. The effects of the foam on the combustion process are as follows…15
VII. Types of foam………………………………………………………………….......15ix. Composition of the foam………………………………………........15
x. There are mainly two types……………………………………........15
xi. Concentration of the foam………………………………………….15
xii. Protein base foam…………………………………………………..15
VIII. Main advantages…………………………………………………………………..16
IX. Main disadvantages…………………………………………………………….....16
X. Definition ofdetectors………………………………………………………….....17
XI. Characteristics of the detectors…………………………………………………..17
xiii. Temperatures……………………………………………………….17
xiv. Smoke……………………………………………………………….17
xv. Gas………………………………………………………………….18
xvi. Flame……………………………………………………………….18


XII. Specific Part: Chemical powder of fire extension systems...................................19
xvii. Definition of Drychemical.................................................................19
XIII. Types of dry chemical..............................................................................................20
XIV. Physical properties of dry chemicals......................................................................20
xviii.Stability..............................................................................................21
xix. Toxicity...............................................................................................22
xx. Particle size........................................................................................22
XV. Mechanisms of extinction........................................................................................23
XVI.Uses of the chemical powders.................................................................................23
XVII. Limitations and disadvantages…………………………………………………...24
XVIII. Advantages………………………………………………………………………...25
XIX. Methods of application............................................................................................25
xxi. Fixedsystems.....................................................................................26
xxii. Systems-based manual hoses.............................................................27
XX. Storage of the powder..............................................................................................27
XXI. Conclusion...