M.Sc. Tezi Görüntüleme

      For the purpose of increasing the knock resistance in engines, additives such as lead tetraethyl (Pb_(C_2H_5)_4), lead tetra methyl (Pb(CH_3)_4), ironpentanecarboxide (Fe(CO)_5), etc. were added to petrol as a result of the advancement in fuel technology, leaded fuels were left out because of their poisonous and carcinogenic effects. Thus the usage of unleaded fuels becomes widespread; this led to the common usage of fuel. In the presented this study, the effects of mixed fuels on engine performance and exhaust emission were examined experimentally by adding naphthalene and tertiary butyl alcohol to the petrol separately. Experiments were conducted (performed) in full gas (1/1) for variable various speeds and different compression ratios. Naphthalene was added to the petrol in four different mass proportions by mass (%2, 4, 6, 8) on the other hand TBA was added to the petrol in four different proportions by volume (%1, 2, 3, 4). All of the experiments were realized (performed) by using a one-cylinder petrol engine with electric dynamometer. Torque, effective power, mean effective pressure, specific fuel consumption, effective efficiency and CO emissions determined from the tests were analyzed for different operation conditions.

      Co emission values increased as the naphthalene ratio increased. However, it decreased as the addition amount of TBA ratio increased. The lowest CO rate for naphthalene was obtained at %2 mixture ratio and at %4 for TBA.

      Note: _symbolizes subscript