Waste fires still occur regularly at waste processing companies.
The most common causes are batteries that ignite or scald.
Many waste companies don’t realize that detecting heating requires a different configuration and projecting than detecting fire, which is crucial to take early action.
Detection for the cause instead of the effect
Too often, we come across waste companies that have a detection system focused on detecting fire, while they think they are also detecting overheating.
This can have major consequences.
How can you be sure that your system is not only detecting fire, but also the early signs of overheating? In many cases where thermal detection cameras are used, only fire has been tested, not the underlying heat.
As a result, a valuable signalling moment is lost in which the heating develops into a fire. As a result, a valuable signalling moment is lost in which the heating develops into a fire, resulting in unnecessary risk for the waste processor and the environment.
Fire test and acceptance criteria
Scalding detection systems are often delivered with a fire pit where a number of mats are set on fire (Test Fire 1, NEN)).
Videos of this regularly pass by on social media.
Such a system has been tested for fire detection (flames).
This is because a fire box produces a lot of heat immediately and is accompanied by significant flames.
This makes the system suitable for detecting a battery fire, for example.
However, this method of testing does not say anything about whether or not it can detect the slowly building temperature of heat.
Detection of scalding marks
Detecting heat requires a targeted approach.
Scalding usually occurs in the bump and travels to the surfaces through small spores.
Initially, these spores are limited in size and temperature on the surface.
Nevertheless, it is essential to identify these first traces.
With early detection, you have plenty of time to react to the scalding process so that it does not develop into a fire.
This is in contrast to alerting to the resulting fire.
Correct test and acceptance criteria
You can test the performance of heat detection with a special heating plate.
The thermal detection camera must be able to observe the plate and display the current temperature.
This is then placed in the most unfavourable position within the range of the area to be monitored of the respective detection camera.
If the test fixture is tested according to the VdS 3189, the plate has a standard size and certain temperature accuracy.
A test with the fire box is only suitable for detecting flames.
In the event of a fire caused by overheating, a lot of time has already been lost.
A time when a fire was still easy to prevent.
Succession
Scalding With the latest developments in thermal cameras, heating can be detected and signalled at an early stage.
We are talking about a higher accuracy and sensitivity, which means that heating can be detected more quickly.
New possibilities are emerging in the field of smart detection to slow down heating and prevent damage.
Fire When a fire starts, the goal is to slow down and control the situation until the fire brigade arrives.
With current technology, it is possible to use the smart heat detection cameras for locating fire and automatically extinguishing it by an extinguishing system.
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