Forensic Engineers and Consultants

Archive: Fires & Explosions

In Cahoots – Interconnections of Fire Protection Systems with Ancillary Equipment

Fire protection is an expanse that I am both fascinated by and passionate about. To prove it, I could show you my sprinkler collection… the old ones, the new ones, the sizes, the features!  But instead, I will share some information to show you the relationship between fire protection systems and other systems that you may have never thought about!

Fire protection, suppression, and alarm systems often do not act alone. They can be in cahoots with life safety systems or other equipment or building systems to mitigate fires and help firefighters. Many, but not all, of these functions are associated with fire alarm systems. Many, but not all, of these functions are customary and expected. Some of these functions will automatically reset when the alarm or system is reset, but not all! Read More

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Dig into Underground Fire Water Piping and Appurtenances

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Many sites that are protected by fire sprinklers will have at least some amount of private underground fire water piping. Its purpose is to make water available for fire protection or suppression at a needed flow and pressure. Its presence is usually quietly evidenced by the connected objects that occasionally surface along its course, like valves, fire department connections and private hydrants, termed appurtenances. Underground water piping commands attention, though, when Read More

FORKLIFT Etiquette: DON’T BE A LOUSY TIPPER!

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That is always good advice to follow if you are a forklift driver!  Operating a forklift can be a dangerous occupation.  There are approximately 1 million forklifts (powered industrial trucks) in the US workplace today, and it is estimated that just over 10% of those are involved in some type of accident every year.  Forklift accidents result in dozens of deaths and thousands of non-fatal injuries annually.  About one out of every four of those accidents involves a tipping or overturning forklift, making this the most common type of industrial truck accident.  Read More

Understanding Heat Transfer: A Guide for Fire Investigators

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In the realm of fire investigation, understanding heat transfer is crucial. Heat transfer plays a significant role in how fires start, spread, and ultimately, how they can be analyzed and investigated. There are three primary modes of heat transfer: conduction, convection, and radiation. In this article, we’ll delve into each of these modes and explore examples of how fire investigators can apply this knowledge to their work. Read More

Dive Into Suction Tank Issues and Inspections

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Privately-owned water tanks supplying fire protection systems have a long history. The NFPA published the Standard on Gravity Tanks in 1909. It is one of the oldest NFPA codes, predating even the Life Safety Code’s precursor, the Building Exits Code, first published in 1927. The Standard on Gravity Tanks evolved over the years to become NFPA 22, Standard for Water Tanks for Private Fire Protection. The inspection, testing, and maintenance requirements for all types of private fire water storage tanks are laid out in NFPA 25, Chapter 9 – Water Storage Tanks. While there are about eight different types of fire water tanks, I’d assert that the most common type today is the steel suction tank. Read More

A Primer On The Elements Of Fire Protection Water Supplies

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Get primed!

Fire protection water supplies can be made up of one or more common elements, including tanks, pumps, water sources and water systems. Sometimes elements are used together to develop an adequate supply for fire protection.

An adequate water supply for a fire protection system will meet the needs of the fire protection system (plus safety factor) in three terms: Read More

Hot ’til It’s Not…Water Heater Maintenance

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An often overlooked item in your home’s infrastructure is the water heater.  Most people don’t think a lot about their water heater until they turn the tap and are surprised with water that is less than hot.  Water heaters are just like many other major home appliances, they need a little attention to get their maximum life and performance. Read More

Turkey Fryers- Product Design is Critical to Consumer Safety

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As the holiday season nears, thoughts turn to wonderful home-cooked meals with family.  Few things in life are more pleasurable than a traditional holiday turkey feast. Yet for an unfortunate few, holiday meal time can turn tragic if a turkey frying accident occurs.   While fried turkeys may be tasty, many fire safety experts feel that the reward is not worth the risk.  Read More

Fire Pumps are Cool 😎; Lets Keep Them That Way

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In my last blog, we discussed the small PRVs that go on wet sprinkler systems to limit their pressure below 175 psi. That brought to mind a small PRV in another application that is used to keep something different cool: an electric motor-driven centrifugal fire pump. I can’t talk about electric fire pumps without also talking about diesel fire pumps, so let’s dive in and take a look at both! Read More

Wet System Pressure Release Valves

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Ah, summertime. Summer’s heat brings some good things: opportunities for outdoor swimming and seasonal produce: blueberries, and peaches, and watermelon…

Summer’s heat doesn’t bring all good things. It can even trigger issues with fire sprinkler systems. Let’s zoom in on a small component on a wet fire sprinkler system that’s there in part because of summer heating: a pressure relief valve.

A pressure relief valve (or an auxiliary air reservoir) is required on wet sprinkler systems; one reason is to Read More

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