A Study on the Sprinkler Installation Plan in the Air Conditioner Room through TRIZ Analysis

Abstract

In the last five years, there have been a total of 1,168 fires in outdoor air conditioners, half of which 49.4% occurred in residential facilities. Since 2006, the “Regulations on Housing Construction Standards, etc.” have been revised, and the Air conditioner room that has entered the indoor space is operated without opening the louvers sufficiently in a small space, or dust and moisture accumulate in a poorly ventilated state due to loading a large amount of goods, and if the air conditioner is operated for a long time due to a heat waves, the outdoor unit overheats, increasing the risk of fire. The study investigated the cases of the sprinkler installation in the Air conditioner room by type, and analyzed the three causes of fire suppression failure of the sprinkler in the event of a fire: ignition source, combustible material, and head operation failure, and analyzed using TRIZ technique. In order not to fail to extinguish the fire, An additional head should be installed. Water radiated from Upper head cools the thermal part of Lower head when installed in combination with the Upper and lower head, and the Lower head does not work. When the upper head is operated, the lower head can also be operated, and the fire suppression effect was demonstrated through a fire test.