Old School: Smoothbore Nozzles in the Fire Service
The City of ______ Fire Department is in current discussion of using either smooth bore nozzle versus combination nozzles in commercial structures. This conversation has been a topic within the fire service since the introduction of the fog/combination nozzles in the 1960’s. Although there are positives to both pieces of equipment, I believe that the department needs to make a decision on which nozzle to use for a standard operating procedure and safety purposes.
To better understand the background of the contrasting views, we must look at how the fire service has developed around …show more content…
Guess what happened? We got our tails burned every time from the heat, steam, and black nasty garbage dropping down on us. The protective cone of water works great IF you are not in a confined super heated atmosphere. Like for approaching a gas meter fire, or a car fire where the heat can dissipate into the atmosphere. I think the best choice is having both types of nozzles available and selecting the right one for the job. Either way, a smooth bore stream or a straight stream from a combination nozzle is the best choice for interior work.
The department decided to investigate this particular topic to determine which nozzle would be more beneficial when a firefighter is in a burning commercial structure. The smooth bore shoots out more water per second but at a straight stream. The combination nozzle shoots out more water droplets at a wider stream. Both processes are functional when putting out a fire. However, the combination nozzle can act as a barrier or wall against flames and smoke because it shoots at such a wide pattern. At the same time because the combination nozzle system shoots out water droplets, the droplets produce steam. The steam that is now present is more harmful to firefighters, which can be prevented by keeping the smooth bore nozzle in place. A direct attack method is designed to extinguish the fire by applying water in a straight or solid stream to the base of the fire. This allows the
| Describe how and when the different types of fire extinguishers, relevant to the given occupation, are used in accordance with legislation and official guidance.QCF641. 3.7 & 3.8
State the appropriate types of fire extinguishers available when installing 1st & 2nd fixing components & when using cutting and shaping machines and describe how and when they are used in accordance
Some would say that one is better than the other and some the opposite. In this paper, we will learn the importance of both and the difference in both. A firefighter is a firefighter no matter what his/her salary, or their level of training.
The fire service has long-standing traditions dating back to the 18th Century, whether it is the color red on fire apparatus or the shape of their helmets. Some traditions are important in the American fire service while others traditions are dangerous or unneeded practices but still, exist for a variety of reasons. One of the biggest challenges to making changes requires the changing of the culture within the fire service.
xii. Fire out of faucet-alit “Today’s methods make gas drilling a filthy business. You know it’s bad when nearby residents can light the water coming out of their tap on fire” (Schweiger).
NFPA and National Fire Protection Association are registered trademarks of the National Fire Protection Association, Quincy, Massachusetts 02169. Copyright © 2008 National Fire Protection Association®. All Rights Reserved. This edition of NFPA 1006, Standard for Technical Rescuer Professional Qualifications, was prepared by the Technical Committee on Rescue Technician Professional Qualifications and released by the Technical Correlating Committee on Professional Qualifications. It was issued by the Standards Council on December 11, 2007, with an effective date of December 31, 2007, and supersedes all previous editions. This edition of NFPA 1006 was
For years if not decades, firefighters have responded to a reported structure fire that turned out to be a fully involved single room. This fire scenario requires a core set of fire tactics and skills to control and extinguished the fire, but is it this simple? Perhaps twenty years it may have been, but new dangers are lurking in every scenario and may have detrimental outcomes for unsuspecting and unaware firefighters and victims. The National Institute of Science and Technology (NIST) agency along with the Underwriters Laboratory (UL) have been conducting research to understand fire behavior and fire dynamics. This research is providing firefighters with new information about how and why
Our glass fronted gas fires in Bamber Bridge are of high quality and will increase the appeal of your house. We know that quality stoves, more specifically, glass fronted gas fires, can add a touch of luxury to your home. However, they are not just an accessory to decorate a room. Other than their visual appeal, their benefits include safety, functionality and energy efficiency. As modern safety glass is made to withstand the heat generated by gas fires, it assists by helping to conduct the radiant heat they produce. The glass also frames the realistic fire beds and interiors of modern gas fires. The use of glass is not only for aesthetic reasons. The use of the glass means that the fire is completely room-sealed, so that the air flow is restricted to the flue and the fire chamber. Glass fronted gas fires also have energy efficiency ratings of between 70 – 85%.
Much like all events and natural phenomena that pose a threat to civilization, humans have learned to cope with and prevent the loss of human life and destruction of property in devastating blazes that can break out seemingly at random. Fighting fires was not always the science it is today, but due to the use of new technologies and the fundamental understanding of what fire is, how it spreads, how it can kill, and how it is stopped, our protocol when dealing with fires has increased our success rate and continues to grow with applications of engineering, chemistry, and meteorology.
The firefighters can have a safer rebreather because the oxygen that the rebreather has is not affected by fire.By being inside the mouth of the user. Will be able to be covered or attached to a mask if ever necessary the rebreather. The device would have three parts to the device. They would replace the mouthpiece and the three chambers that the circulation is conducted. The mouthpiece is a rubber middle and metal rings in which the other medal cylinders can be
One thing I would like to know, how many fire department responding to a structure fire take the time to evaluate the size of the building, length and number of hoses to be used then calculate the rate of flow (ROF), delivery rate (DR) and pump pressure
Although the automatic sprinkler system is the most widely used type of fire protection system, it does have its limitations and uses inside certain building types. As previously stated, it is generally used in commercial buildings. This is because there are usually no special hazardous materials in these buildings, or any large quantity of materials that would react negatively with the application of water. It is installed in buildings such as hospitals, schools, and office buildings for life safety first, then building preservation. Since a proper functioning sprinkler system will reduce the fire size and prevent its spread, it will allow for more time of evacuation for these buildings. This is especially useful in hospitals and nursing home settings where there may be a large number of
The foam consist of a mixture of water, forming agent, and air . As water flows, the foaming agent is mixed and the extinguishing agent is created. With every deluge systems specific purpose and design, it will require foam to have different foam densities. Foam extinguishment consists of cooling the fire and displacing of oxygen. It also suppresses vapors that can be flammable when mixed with air. You will find foam being generally used on class A and B fires. Special designed nozzles need to be in place for foam usage. One type commonly used are foam guns. Foam guns aim to cool fire from a distance. There is also a nozzle that can alternate between foam and water called foam/water jet pipe. You will find these foam nozzle systems in oil refineries, laboratories, and any places with hazardous materials. The use of foam can be of great service due to its ability to flow over practically any surface, can be manipulated to extinguish many different types of hazardous fires. The only downside will be the cost and clean up time required, which tends to be more than other extinguishing