Search results
Results from the WOW.Com Content Network
For instance, to safely fill a new container or a pressure vessel with flammable gases, the atmosphere of normal air (containing 20.9 volume percent of oxygen) in the vessel would first be flushed (purged) with nitrogen or another non-flammable inert gas, thereby reducing the oxygen concentration inside the container. When the oxygen ...
An enormous fire ripped through an industrial complex in Pennsylvania and continues to burn as residents sheltered over fears of toxic smoke. The blaze broke out at around 9:35 p.m. Monday at SPS ...
Consider the first triangular diagram below, which shows all possible mixtures of methane, oxygen and nitrogen. Air is a mixture of about 21 volume percent oxygen, and 79 volume percent inerts (nitrogen). Any mixture of methane and air will therefore lie on the straight line between pure methane and pure air – this is shown as the blue air-line.
Controlling gas and vapor concentrations outside the flammable limits is a major consideration in occupational safety and health. Methods used to control the concentration of a potentially explosive gas or vapor include use of sweep gas, an unreactive gas such as nitrogen or argon to dilute the explosive gas before coming in contact with air.
Pennsylvania officials have lifted shelter-in-place and evacuation orders near a manufacturing facility that caught on fire Monday night, but the blaze is still not out.
McAneney said fighting the fire was more difficult due to the size of the fire, the chemicals, the cold, and the winds. “The building was well-involved on the first unit's arrival, so it had a ...
In an oxygen system the presence of oxygen is implied, and in a sufficiently high partial pressure of oxygen, most materials can be considered fuel. Potential ignition sources are present in almost all oxygen systems, but fire hazards can be mitigated by controlling the risk factors associated with the oxygen, fuel, or heat, which can limit the ...
Schools were closed and residents were ordered to shelter-in-place Tuesday after a large fire broke out at an aerospace manufacturer’s facility in a town north of Philadelphia, officials said.