الفهرس | Only 14 pages are availabe for public view |
Abstract The work described in this thesis has been devoted to an experimental investigation of the effect of inlet air temperature on the performance of a four-stroke spark ignition engine when it is running on pure gasoline and its blends with ethanol at both full and part throttle. This was done by heating the inlet air to dif- ferent temperatures and using gasoline and gasoline-ethanol blends with different percentages as fuel. The test engine type is (FlAT 1500) with maximum power 55 k.W. at 5330 r.p.m., maximum torque 115 N.m. at 3330 r.p.m. and displacement vol ume 1481 c.c, The experimental work consists of full throttle and part throttle tests. All tests were carried out without changing the static ignition advance. The setting of carburetor main jet needle has been tuned for maxim um power wi th gasoline. a. Full throttle Tests The engine was tested for inlet air temperatures of 30, 35, 40, 45, 50 and 55°C For each inlet air temperature the engine was tested at full throttle using first gasoline then four different ethanol-gasoline blends of 4.89%, 9.79%, 15.3% and 21 % by |