Study On Applicability Characteristic Of Methanol-Gasoline Fuel On FV7160CIX

The condition of energy-sources is introduced in China in this study. With the developing of national economy and the increasing of automotive quantity, the shortage of petrol is becoming more and more severe. At the same time, deficient petroleum but abundant coal is the characteristic of energy sources in our country, coal is the good energy-sources for Methanol, compose gasoline and diesel. In the several technical route of making subfuel from coal energy-sources, coal (or nature gas)is translated to compose gas CO and H2, and catalyzed to methanol is the best way. Many years of study in the world, methanol as a kind of fuel for motor is grown up for IS engine. Developing the subfuel made from coal is suitable our country's development. By study of methanol fuel market analysis in China, in recent years, there was an increase of using methanol fuel on vehicle in shanxi and Shaanxi provinces. The government and people have improved the attention and recognition. In shanxi province, there are 6 big manufacturers ( including CHINA PETROLEUM & CHEMICAL CORPORATION SHANXI BRANCH OFFICE,CHINA NATIONAL PETROLEUM CORPORATION SHANXI SALES CO., LTD),and 192 gas stations. According to incomplete statistics, there are more than 200 thousand tons M15 methanol fuel and 60 thousand tons M85 methanol fuel have been saled in shanxi, vehcile fueled with methanol fuel are more than 10 millions. Datong Yungang automotive manufacture corporation and Shanxi Jiaxin New Energy CHEMICAL Industry Ltd have refitted more than 1000 methanol fuel vehicle. They achieve economic effect and doing the popularized work at the same time. Local government have supported methanol fuel vehicle by mitigating road toll and passenger transport extra charge. The standard of"methanol fuel of vehicle","M5—M15 methanol gasoline"and"prepare station and fuel station operating regulations"have been published. All these have impulsed the application of methanol fuel vehicle. The methanol fuel vehicle has been provided with application in some area ofChina.Next, the study introduced the characteristic in physics,chemistry and combustion of methanol, also appliance on the engine. As technique of mix combustion with methanol and gasoline, M5 to M25 fuel is succeed using on the engine. M30 methanol fuel was selcted as research object to using on an engine with no change to using gasoline fuel. A very detailed performance testing and reliability test for 400 hours on the engine testing bed is carried out. Including engine power testing, speed load characteristictesting, blowby testing, and engine universal characteristics testing. Then, we made a same testing under the same condition by fueling with M30 methanol fuel, and compared the testing results to that of 93# gasoline. All these Characteristics testing have been finished, we have a reliability test on the engine fueled with M30 methanol fuel. This is an examination for M30 methanol fuel using as fuel on the engine testing bed.At last, we didn't change the configuration of the vehicle, a JJETA GIX car was used to test the performance, with the methanol-gasoline fuel blends, fuel economy, power property, exhaust emissions property characteristics. The main results are as follows:1. Power performance of engineThe power performance of engine is fall down when it is fueled with M30 methanol fuel. The power output is inverse proportion with the increase of the volume of methanol in the methanol-gasoline fuel. But the methanol in methanol-gasoline fuel quicken the speed of blaze, reduce the heat lost, the degressive rate of power property is lower than that of heat value.2. Fuel economy decreased when the M30 methanol was fueledThere are two reasons. One is methanol increased the oxygen in emissions and the ECU of engine adjust the fuel supply. The other is the heat value of methanol-gasoline is lower than 93# gasoline,so when the power output is in the same level, the fuel consumption increased.3. The exhaust emissions of conventionalityMeasurement methods for emissions from light-duty vehicles following with 18352.3-2005 , comparing with 93# gasoline, the M30 methanol caused Carbon monoxide(CO) and Hydrocarbon(HC) is decreased, but NOx emission was increased when the test was carried out. The Carbon monoxide(CO) was decreased for 60%, concomitance Hydrocarbon(HC) for 46%, but NOx was increased for 20%, this is because methanol increased the oxygen and the speed of blaze in the combustion. This cause Carbon monoxide(CO) and Hydrocarbon(HC) decrease. On the other hand, higher temperature and more oxygen gave NOx more chance to grown .4. Reliability test for enginesAfter reliability test for 400h, there are no wrong with the engine through the reliability test. Performance after reliability are conform to that of gasoline after 400h, all these proved that M30 methanol can be fueled with vehicle substitute gasoline.