Performance, combustion and emission characteristics of SI and CI engines

Performance, combustion and emission characteristics of SI and CI engines

Testing procedure

The schematic diagram of the experimental set-up. (1) Engine, (2) Dynamometer, (3) Shaft, (4) Flywheel, (5) Exhaust pipe, (6) Dynamometer control unit, (7) Gas analyzer, and (8) Fuel measurement system.

Experimental results of engine performance characteristics using different ethanol gasoline blended fuels under various engine speeds. (a) Brake power, (b) Brake torque, and

(c) Brake specific fuel consumption.

Experimental results of engine performance characteristics using different methanol gasoline blended fuels under various engine speeds. (a) Brake power, (b) Brake torque, and (c) Brake specific fuel consumption.

The influence of ethanol addition on the engine performance characteristics. (a) Brake power,

(b) Brake torque, and (c) Brake specific fuel consumption.

The influence of methanol addition on the engine performance characteristics. (a) Brake

power, (b) Brake torque, and (c) Brake specific fuel consumption.

Comparison of brake power characteristics using different ethanol and methanol gasoline blended fuels.

Comparison of brake specific fuel consumption using different ethanol and methanol gasoline blended fuels.

The effect of various ethanol/methanol gasoline blend fuels on CO, CO2, HC and NOx emissions.

Sometime during the 21st century, crude oil and petroleum products will become very scarce and costly to find and produce. At the same time, there will likely be an increase in the number of automobiles and other IC engines. Although fuel economy of engines is greatly improved from the past and will probably continue to beimproved, numbers alone dictate that there will be a great demand for fuel in the coming decades. Gasoline will become scarce and costly. Alternate fuel technology, availability, and use must and will become more common in the coming decades. Although there have always been some IC engines fuelled with non-gasoline or diesel oil fuels, their numbers have been relatively small. Because of the high cost of petroleum products, some third-world countries have for many years been using manufactured alcohol as their main vehicle fuel. Many pumping stations on natural gas pipelines use the pipeline gas to fuel the engines driving the pumps. This solves an otherwise complicated problem of delivering fuel to the pumping stations, many of which are in very isolated regions. Some large displacement engines have been manufactured especially for pipeline work. These consist of a bank of engine cylinders and a bank of compressor cylinders connected to the same crankshaft and contained in a single engine block similar to a V-style engine.