Today there are ways to safely vent indoor enclosures. Air or panel vents are the most affordable way to ventilate explosions so long as they can be safely ducted to the outside.
The fireless ventilation technology was invented in Europe in the 1990s by REMBE GmbH. The fireless panels consist of cells wrapped in a specially designed mesh material. The bottom of the cage is tightly closed with a round tear plate.
Once deflagration begins, the increased pressure causes the disc to rupture. Flames and dust are shot into the cylinder body. Since the mesh material offers a very large surface, the heat is dissipated. Dust particles cannot pass through the mesh material and are also retained in the cylinder. You can also consult professionals via coopatex.co.uk/flameless-venting/ to install flameless explosion vents.
The increase in pressure outside the flameless vent is negligible if an event occurs and the disc ruptures. Some fireless ventilation systems are ATEX certified and can be installed indoors to safely eliminate eruptions.
The fireless ventilation system is a passive system. They do not require any other device (such as a spark detector or sensor) to be activated. The blast pressure activates the system. Whereas other prevention systems such as suppression systems, require quarterly maintenance, this is not the case with fireless ventilation systems. These panels are specially equipped with burst sensors. After the explosion, a signal is activated to stop the whole process.
For companies that have switched from suppression systems to fireless ventilation, the cost savings are enormous. The average residence time after explosion suppression can be more than three days as the entire production line must be cleaned to remove the suppressor.