Fires still frequently occur at waste processing companies. The most common causes are batteries that ignite or smoldering. Many waste companies do not realize that detecting smoldering requires a different configuration and setup than detecting fires, which is crucial for taking timely measures.
Detection of the cause rather than the consequence
Too often, we encounter waste companies with a detection system aimed at detecting fires, while they believe they are also detecting smoldering. This can have significant consequences. How can you be sure that your system detects not only fires but also the early signs of smoldering? In many cases where thermal detection cameras are used, they have only been tested for fires, not for underlying smoldering. As a result, a valuable warning moment is lost in which the smoldering develops into a fire. This loss increases unnecessary risk for both the waste processor and the surrounding area.
Fire testing and delivery criteria
Smoldering detection systems are often delivered with a fire pan test where a number of mats are set on fire (Test Fire 1, NEN)). Videos of this frequently appear on social media. Such systems are tested for fire detection (flames). A fire pan produces significant heat and is accompanied by large flames, making the system suitable for detecting fires, such as battery fires. However, this method of testing says nothing about whether or not the system can detect the slow buildup of temperature associated with smoldering.
Detection of smoldering traces
Detecting smoldering requires a targeted approach. Smoldering usually starts within a pile and emits small traces to the surface. Initially, these traces on the surface are limited in size and temperature. However, it is crucial to detect these early traces. Early detection gives you ample time to respond to the smoldering process before it develops into a fire, unlike being alerted only after the resulting fire.
Correct test and delivery criteria
The performance of smoldering detection is tested with a special heating plate. The thermal detection camera must be able to detect the plate and display the current temperature. The plate is then placed in the most unfavorable position within the monitored area of the detection camera. If the test setup is evaluated according to VdS 3189 standards, the plate has a standard size and a specific temperature accuracy. A fire pan test is only suitable for detecting flames. By the time a fire has resulted from smoldering, much valuable time has been lost—time in which a fire could have been easily prevented.
Folow-up
Scalding With the latest developments in thermal cameras, smoldering can be detected and signaled at an early stage. We are now seeing higher accuracy and sensitivity, allowing smoldering to be detected more quickly. New possibilities are emerging for smart detection to slow down the smoldering process, preventing damage.
Fire When a fire occurs, the goal is to delay and control the situation until the fire brigade arrives. With current technology, it is possible to use smart smoldering detection cameras to locate the fire and automatically activate an extinguishing system.
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