LINSAFE Systems
Liquid Nitrogen Suppression And Fire Extinguisher Systems
Description
The idea here is to use Liquid Nitrogen as a fire suppressant in building followed by extinguishing by water as a finishing touch. Why Liquid Nitrogen ? - Nitrogen is an excellent retardant - It rapidly combines with the oxygen in the air and creating a shortage of Oxygen for the fire to prolong - Fast expansion rates, fills up the volume of the Room in mere seconds - Absorbs a lot of thermal energy as it converts from liquid to vapour and from vapour to gaseous state. - Liquid Nitrogen is cheap and easily available In this system there are three phases 1. Detection 2. Suppression 3. Extinguishment Detection - - There are various well-known fire detection technologies available. Like, Thermal sensors, Smoke detectors, Thermal Imaging Cameras, CO2 detectors, etc etc. - These sensors are strategically placed at the SME Buildings so that they cover each and every corners, or atleast at all the possible locations where a fire can start. - Once these sensors detect the initiation of Fire in the building, they relay a signal to the suppression and extinguisher systems with the help of IoT Suppression - This is where Liquid Nitrogen is highly advantageous. Liquid Nitrogen can be released in the fire zone using various methods depending on the type of infrastructure at hand and the budget available for the project. Some ideas that i propose are: 1.) Drones combined with swarm robotics In this type, drones carrying capsules of pressurized Liquid Nitrogen Cylinders are given direction with the help of IoT systems to reach the fire affected zones in the buildings quickly and release the Liquid Nitrogen capsules over the fire, thus suppressing the flames in this process. 2.) Liquid Nitrogen supplied into the rooms using a network of pipelines connected throughout the Building, with a huge storage tank at the root of all the pipes. Once the fire is detected, the liquid Nitrogen is released to the affected location using pipeline network such that supply is active only that location. I think this is possible with the help of IoT also. 3.) Liquid Nitrogen can be used in HVAC systems as a cooling agent for normal daily use in the SMEs, and when there's a fire this Liquid Nitrogen can be redirected using a network of pipelines from the HVAC systems to the rooms affected with fire via hoses and nozzles. Extinguishment - This is a fairly traditional extinguishing method with the help of water. I suggest sprinklers placed in each room that can be actuated once the fire is detected. The liquid Nitrogen helps suppress the flames but there will still be smouldering fire where the liquid nitrogen cannot reach. Liquid nitrogen gets vapourized after suppressing the flame, there needs to be another agent to keep the fire zones wet to avoid the fire to build up again, this can be done by the help of water sprinklers. This is my proposed idea to quickly put out a fire. Liquid Nitrogen doesn't cost too much and the equipment needed to build the system isn't very expensive either. After a single fire incident, the equipment can be refilled with Liquid nitrogen and the system is ready to extinguish another if there will be any. Detail drawings to come soon. Open to suggestions and criticism.
References
1. https://www.nfpa.org/-/media/Files/News-and-Research/proceedings/supdet11levendispaper.ashx?la=en 2. http://www.innovations-report.com/html/reports/life-sciences/report-34911.html 3.http://www.iaea.org/inis/collection/NCLCollectionStore/_Public/08/293/8293457.pdf 4.https://www.coe.neu.edu/sites/default/files/pdfs/coe/research/embark/1-2-martland.pdf 5. https://www.aiche.org/sites/default/files/cep/20150930r.pdf 6. https://youtu.be/A2vQSRs0u_s?t=7m16s 7. https://www.youtube.com/watch?v=CsHiGU4_fik 8. http://slideplayer.com/slide/4777023/