There is a great amount of store energy inside a boiler. The position change of superheated water as of a hot liquid to a vapor (steam) release a huge amount of energy. such as, 1 ft3 of water will enlarge to 1600 ft3 when it turns to steam. then, “if you could capture all energy released as a 30 gallon home hot water tank flashes into volatile breakdown at 332oF, you would have sufficient force to send average car (weighing 2,500 lbs) to a height of almost 125 feet. This is equal to more than the height of a 14 story high-rise building, early by a lift off velocity of 85 miles per hour!” (5).
Boiler safety is a key purpose of National Board of Boiler and Pressure Vessel Inspectors. This association reports and tracks boiler safety and number of occurrence connected to boilers and pressure vessels every year. Their work has found that number one event category ensuing in injury was deprived maintenance and operator mistake (5). This stresses the importance of correct maintenance and worker training.
Boilers have to be inspect regularly based on manufacturer’s recommendation. Pressure vessel reliability, checking of safety release valves, water cutoff devices and correct float process, gauges and water level indicators must all be inspected. The boiler’s fuel and burner system need good inspection and maintenance to make sure capable operation, heat transfer and correct flame revealing.