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Chen H.,Changan University | Chen H.,Key Laboratory of Shaanxi Province for Development | Yang L.,Changan University | Zhang P.-H.,Changan University | Harrison A.,Changan University
Energy Strategy Reviews | Year: 2014

Methanol has already been used widely throughout the whole nation. This paper firstly analyzes the strategic development of the use of methanol as a fuel in China, including standards, organization and the present situation. It points out the different standpoints at home and abroad on the highly controversial issue as to whether China should develop fuel methanol. Then it evaluates current strategies and introduces GHG emission as an evaluation method to be accepted both home and abroad. Recommendations for policies of fuel methanol are given to improve operation mode. It is suggested that only coal-abundant provinces should continue to use M5 as their alternative fuel for gasoline, while all other areas and provinces should gradually abandon the use of methanol. A small scale application of M85 and M100 should still be used for evaluating methanol's influence on the environment. © 2014 Elsevier Ltd.

Chen H.,Changan University | Chen H.,Key Laboratory of Shaanxi Province for Development | Yanga L.,Changan University | Zhanga P.,Changan University | And 4 more authors.
Jordan Journal of Mechanical and Industrial Engineering | Year: 2014

Alcohol fuels, including methanol and ethanol, are commonly mixed with gasoline. This paper designs the collection device for testing concentrations of formaldehyde emissions. Results indicate that compared with RON93 gasoline, formaldehyde emissions of M15, M25 and M85 respectively increase 7.2%, 26.5% and 46.6%, and those of E10 and E25 respectively increase 22.2% and 32.8%. Three way catalytic converter, test time, ignition advance angle and excess air coefficient have significant impacts on the formaldehyde concentrations. Two three-way catalytic converters will decrease the formaldehyde emission; the emission decreases with the test time and after ten minutes it tends to be stable; at 30% opening and 2600r·min-1, 25°CA before TDC corresponds to the lowest formaldehyde emission; excess air coefficient should be controlled near 1. © 2014 Jordan Journal of Mechanical and Industrial Engineering.

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