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In these days of endeavoring to reduce oil consumption and to control automobile exhaust emission gases in the air pollutions to be troubled in the whole world, because of the international oil shock and future oil exhaustion covering two times of 1974 and 1979, this study is obtained to conclusion to reduce hydrocarbon and carbon monoxide density from mixing methyl alcohol with gasoline and preheating and pressurizing intake air. The results were as follows: 1) It decreased carbon monoxide density with mixing methyl alcohol with gasoline. 2) It decreased hydrocarbon density with mixing methyl alchol with gasoline below 10%. 3) It decreased considerably carbon monoxide and hydro carbon density with preheating and pressurizing intake air.
In these days of endeavoring to reduce oil consumption and to control automobile exhaust emissions in the air pollutions to be troubled in the whole world, because of the international oil shock of 1974 and 1979 and in future oil exhaustion this study is obtained to conclusion to improve the engine performance and to reduce carbon monoxide density from mixing alcohol with gasoline through assistant alcohol injection. The results were as follows: 1) Generally it increased the thermal efficiency with mixing alcohol with gasoline. 2) It increased the engine output with mixing alcohol with gasoline through the assistant alcohol injection. 3) It decreased remarkably CO emissions with mixing alcohol with gasoline through the assistant alcohol injection.
This study consists of instrumenting and running tests on variable compression engines and measuring the following combustion characterics: (a) flame speed,(b) emissiion and (c) performance parameter such as power and economy.<br/> The results were as follows:<br/> 1) The phase separation diagram of substitute fuels were obtained from phase separation experiment.<br/> 2) The flame propagation speed of substitute fuels were higher than gasoline and increased with increasing methanol weight percente of substitute fuels.<br/> 3) BMEP of substitute fuels was slightly less than that of gasoline but in the range of small weight percente,BMEP was compatible to gasoline.<br/> 4) Concentration of rich equivalence ratio but increased with high compression ratio.In general,NOx concentration was much lower than that of gasoline.<br/> 5) Concentration of HC and CO increased for rich equivalence ratio.Also it was lower than that of gasoline.
The whole world is troubled because of the international oil shocks of 1973 and 1979, and because of the worry of future oil exhaustion. In these days of endeavoring to reduce oil consumption and to control air pollution from automobile exhaust emissions, this study developed synthetic fuel and sought to improvd engine performance through the variable compression ratio. The results were as follow; 1) Synthetic fuel was obtained from phase seperation diagram. 2) As the compression ratio was increased, both regular gasoline and synthetic fuel were improved with engine performance. 3) Driven to wide open throttle, synthetic fuel was increased with engine performance.