Search results
Results From The WOW.Com Content Network
Dusts also have upper and lower explosion limits, though the upper limits are hard to measure and of little practical importance. Lower flammability limits for many organic materials are in the range of 10–50 g/m 3, which is much higher than the limits set for health reasons, as is the case for the LEL of many gases and vapours. Dust clouds ...
LPG in its gaseous phase is still heavier than air, unlike natural gas, and thus will flow along floors and tend to settle in low spots, such as basements. There are two main dangers to this. The first is a possible explosion if the mixture of LPG and air is within the explosive limits and there is an ignition source. The second is suffocation ...
The lower flammability limit or lower explosive limit (LFL/LEL) represents the lowest air to fuel vapor concentration required for combustion to take place when ignited by an external source, for any particular chemical. [29] Any concentration lower than this could not produce a flame or result in combustion.
For each fuel, ignition occurs only within a certain range of concentration, known as the upper and lower flammability limits. For example, for methane and gasoline vapor, this range is 5-15% and 1.4-7.6% gas to air, respectively. An explosion can only occur when fuel concentration is within these limits [citation needed]
The Air Weapons Complex (AWC), operated under the National Engineering and Scientific Commission (NESCOM), is a Pakistani research and development entity. Established in 1992 by the Pakistan Air Force, it specialises in advancing airborne applications of explosive engineering.
The 34th Light Infantry Division, also known as Special Security Division (SSD), is a 2-star Pakistan Army formation, raised in September 2016 as a response to major concerns over how to protect the China-Pakistan Economic Corridor (CPEC) and its workforce from serious internal and external threats.
From left, Chairman of the Joint Chiefs of Staff Navy Adm. Mike Mullen and Rear Adm. Scott Van Buskirk, commander of Carrier Strike Group 9, speak with Chief of Army Staff Gen. Ashfaq Kayani and Maj. Gen. Ahmad Shuja Pasha, director general of military operations, on the flight deck of the aircraft carrier USS Abraham Lincoln (CVN-72) while under way in the northern part of the Arabian Sea on ...
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. The upper and lower flammability limits of methane in air are located on this line, as shown (labelled UEL and LEL, respectively). The stoichiometric combustion of methane is: CH 4 + 2O 2 → CO 2 + 2H ...