Comparative performance study of spark ignition engines burning alcohols, gasoline, and alcohol-gasoline blends

Conference · Thu Dec 01 04:00:00 EST 1983 · Alternative Energy Sources; (United States)

OSTI ID:6511666

Desoky, A A; Rabie, L H

In recent years it has been clear that the reserves of oil, from which petrol is refined, are becoming limited. In order to conserve these stocks of oil, and to minimize motoring costs as the price of dwindling oil resources escalates, it's obviously desirable to improve the thermal efficiency of the spark ignition engine. There are also obvious benefits to be obtained from making spark ignition engines run efficiently on alternative fuel, (non-crude based fuel). It has been claimed that hydrogen is an ideal fuel for the internal combustion engine it certainly causes little pollution, but is difficult to store, high in price, and difficult to burn efficiently in the engine without it knocking and backfiring. These problems arise because of the very wide flammability limits and the very high flame velocity of hydrogen. Alcohols used an additive or substitute for gasoline could immediately help to solve both energy and pollution problems. An experimental tests were carried out at Mansoura University Laboratories using a small single cylinder SIE, fully instrumented to measure the engine performance. The engine was fueled with pure methonol, pure ethonol, gasoline methanol blends and gasaline ethanol blends. The results showed that in principle, from kechnological aspects it's possible to use alcohols as a gasoline extender or as alcohol's gasoline, blends for automobiles. With regard to energy consumptions alcohols and alcohols gasoline blends lead to interesting results. The fuel economy benefits of using alcohols gasoline blends was found to be interesting in the part throltle operation.

• Research Organization: Mechanical Engineering Department, Mansoura University, Mansoura
• OSTI ID: 6511666
• Report Number(s): CONF-831205-
• Conference Information: Journal Name: Alternative Energy Sources; (United States)
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330101* -- Internal Combustion Engines-- Spark-Ignition
330800 -- Emission Control-- Alternative Fuels
ADDITIVES
ALCOHOL FUELS
ANTIKNOCK RATINGS
CHEMICAL REACTIONS
COMBUSTION
COMPARATIVE EVALUATIONS
DISPERSIONS
EFFICIENCY
ENGINES
FUEL ADDITIVES
FUEL ECONOMY
FUEL SUBSTITUTION
FUELS
GASOHOL
GASOLINE
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
LIQUID FUELS
MIXTURES
OXIDATION
PETROLEUM PRODUCTS
SPARK IGNITION ENGINES
SYNTHETIC FUELS
THERMAL EFFICIENCY
THERMOCHEMICAL PROCESSES