Syllabus - Fire Fighting Installation (FT 702(A))

Fire Technology & Safety Engineering

Fire Fighting Installation (FT 702(A))

VII-Semester

WATER BASED FIRE PROTECTION

Fire water demand calculation, water storage tank capacity, water storage tank equipment and accessories, relationship of air pressure and volume in tanks, calculating fire flow rates by Insurance service office method (ISO), Iowa state university method (ISU), fire flow duration, factors affecting water requirement. Hydrant System- Definition and basic components, Pressure and discharge requirement, spacing between hydrant post, pipe material and size.

AUTOMATIC SPRINKLER SYSTEM

Fundamental of performance- Fire suppression Analogy, Design Consideration, Response time Index, Thermal sensitivity and temperature rating. Sprinkler System layout- Sprinkler system zoning, tree system, looped system, gridded system, placement of mains and branch lines, Sprinkler system spacing, maximum area permitted for protection, spacing between branch lines and sprinklers. Hydraulic calculation and back flow protection. Sprinkler system type- wet pipe system, dry pipe system, pre-action system and deluge system.

FOAM BASED FIRE PROTECTION

System types –Fixed, Semi fixed and mobile foam systems. Fixed cone roof, external floating roof and internal floating roof protection with foam- water sprinkler system. Diked and non diked area protection. Medium and high expansion foam systems, mobile foam apparatus and their application, Foam Fire Fighting at fixed sites- Size of fire, type of fuel, depth of fuel and application rate. Storage tank fire tactics for cone roof, floating roof and horizontal tanks.

GAS BASED FIRE PROTECTION

Halogenated Agents and System- Chemical mechanism, chemical composition, Classification and Properties, Toxic and irritant effect, application systems, flooding system, design consideration- NFPA-12A and NFPA-12B, Halon Replacement agents and systems- Extinguishing Mechanism, Halocarbon agents and Inert Gas agents Ozone depletion, Clean agent system design, Agent quantity and discharge time. Carbon Dioxide Application System- Concentration for extinguishment, life safety consideration NFPA-12, methods of application total flooding, local application, hand hose lines, stand pipe systems and mobile supply, components of carbon dioxide system- Carbon dioxide storage, piping system, valves and operating devices, discharge nozzles, system controls, control panels, alarms. Quantity and venting requirements for different system, use and limitation of systems.

DRY CHEMCIAL BASED FIRE PROTECTION SYSTEM

Method of application, system design NFPA-17, storage of chemical and expellant, system actuation and distribution system. Quantity and application rate of dry chemical. Inspection, testing and maintenance procedures for chemical systems. Listed agents for metal fires MET-L-X powder, Na-X powder, other combustible metal extinguishing agent, non proprietary combustible metal extinguishing agents.

Course Objective

To describe and design the water based hydrant system in different types of occupancies. To explain the relevant code of practice and design the automatic sprinkler system for a given occupancy. To learn about the foam based fire fighting systems at different applicable fire desirous sites. To solve the problem of fire loss due to water and foam by applying clean extinguishing agent at precious locations. To learn about the special dry chemical and their systems applicable to highly reactive metals.

Course Outcome

Students will be able to describe and design water based fire protection system for a given occupancy. Students will be able to design and estimates the sprinkler system for a given occupancy. Students will be able to explain and evaluate the foam based fire protection systems for class-B liquid fires. Students will be able to justify the use of gaseous based fire protection inside the precious locations. Students will be able to plan chemical powder based fire fighting systems and able to estimate the cost of the system.

Practicals

Reference Books

  • Fred Stowell, Principles of Foam Fire Fighting International Fire Service Training Association.

  • Robert M Gagnon, Designer’s Guide to Automatic Sprinkler Systems, NFPA-2005.

  • Operation of Fire Protection System NFPA Special Edition.

  • Tariff Advisory committee, Fire Protection Manual- Hydrant System.

  • Tariff Advisory committee, Manual for Water Spray System.

  • Fire Service Manual, Fire Service Technology Equipment and media Fire Fighting Foam Technical Volume-1.

  • Arthur E. Cote, P.E., Fire Protection Handbook, Section-10 and 11, National Fire Protection Association.