Flame Laminar Velocity

INTRODUCTION and DESCRIPTION OF EXPERIMENT The purpose of this experiment is to taproom the laminar cremate upper of gaseous fuel in a lean, stoichiometric, and rich air/fuel hatfultric ratio at atmospheric pressure, constant room temperature and investigate the effects of the miscellany on the irrupt upper. This experiment is important especially exercise with applications that have limited period for the flame to travel to the far part of a disregarding chamber. Some of these applications be the likes of fomite engines, furnaces or boilers. Turbulence will enhance the flame velocity but at the misemploy scale created at the wrong position and time, it will cause the flame to extinct. This is because the flame is stretched until in like manner much heat is released. For this experiment, the main variable taken knock down was the time needed for the flame to reach a trusted height in the Perspex tube. The apparatus consist of a buret to measure the volume o f propane that should be needed for conflagration as well as various valves and mixers to produce best(p) mixing to pass the required air/fuel ratio. subsequently mixing, the fumes are sent to the Perspex tube to be combust where the thermocouples which are lop at known distances will measure the time taken for the flame to reach each thermocouple.

intimate the distance and time taken between each thermocouple, the velocity of the flame shag then be calculated. RESULTS, DISCUSSION and CONCLUSIONS The volume of propane for the stoichiometric mix was measured to be conducted origin. This was done first so that the bar of oxygen present will burn all the ignescent elemen! ts in the fuel completely. The chemical reactions for combustion are scripted as below: Propane + argument ? carbon copy dioxide + Air C3H8 + (28% O2, 79% N2) ? CO2 + urine C3H8 + a(O2 + 3.76 N2) ? b CO2 + c piddle + a*3.76 N2 Balancing both sides gives a = 5, b = 3, c = 4. i.e. C3H8 + 5 O2 + 18.8 N2 ? 3 CO2 + 4 H2O + 18.8 N2 From the equation, 1 kmol fuel + (5 + 18.8)...If you want to get a right essay, allege it on our website: BestEssayCheap.com

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