FLAMMABILITY LIMITS CAMPURAN LPG-UDARA DAN LPG-OKSIGEN DENGAN DILUENT ARGON

Although Government policy in terms of household fuel conversion from kerosene to fuel Liquefied Petroleum Gas (LPG) provides great savings on huge state subsidies in the energy sector. But, this conversion process also gives a great impact in terms of safety of users of LPG, which in general are people who do not get a good education about safety and procedures regarding the use of LPG gas, so often reported gas leak accident that resulted in fires. Therefore, understanding the characteristics of LPG gas mixed with air become very important to note, in this case is the flammability limit of mixture. By understanding the flammability limit of mixture it will be easier to avoid the accidental fire or explosion. In this experiment, flammability limits are tested with a test detonation of a pipe (PUD) in a circle with a diameter of 50 mm and with a total length of 6000 mm which is divided into two parts, namely 1000 mm for the drivers and 5000 mm for the driven. In the PUD installed four pressure sensors to determine the pressure profile at one point and also posted four ionization probes to record the flame front. Fuel mixture used in the driver is a stoichiometric mixture of hydrogen mixed with oxygen at 100 kPa initial pressure driven while for the mixed-use LPG fuel - air with initial pressure of 100 kPa. Ever greater of addition of argon diluents mixing of fuel of LPG-air and also of LPG-oxygen hence area of flammability limit will smaller, caused by value of ekuivalence ratio will progressively shift and and so do activation of energi of fuel mixture also will be downhill because of release heat reaction of the fuel to argon diluents