A method for applying ethanol-humidified air or natural gas to blend-burning ethanol fuel of IC engines

A technology of alcohol fuel and natural gas, which is applied to gaseous engine fuel, internal combustion piston engine, combustion engine, etc., can solve the problems of difficult to mix evenly, two phases are difficult to mix evenly, mixed combustion, etc., and achieves simple implementation, wide application range, improved economical effect

Inactive Publication Date: 2009-03-04
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Based on the above-mentioned humidity control principle, the present invention applies this technology to alcohol fuel to humidify air or natural gas, so as to solve the problem that alcohol fuel and mineral fuel oil are difficult to mix evenly due to the difference in properties and that natural gas engines are blended with alcohol fuel.
[0006] The purpose of the present invention is: in order to overcome the above-mentioned problems such as the difficulty in mixing the two phases of alcohol and oil fuel due to the difference in properties and the short driving range of natural gas vehicles, it is desired to carry alcohol fuel through the air inlet of the internal combustion engine or natural gas to form a A mixed gas with a stable composition, and then enters the combustion chamber of the engine to be mixed with fossil fuel or air (natural gas engine) for mixed combustion, and a method for humidifying air or natural gas with alcohol for internal combustion engines to be mixed with alcohol fuel is proposed

Method used

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  • A method for applying ethanol-humidified air or natural gas to blend-burning ethanol fuel of IC engines

Examples

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Effect test

example 1

[0013] At room temperature 20°C, the contact area of ​​the alcohol liquid surface and phase is 11cm 2 , use alcohol fuel to humidify air or natural gas to form a mixed gas of alcohol and air or natural gas, and measure the relationship between air or natural gas flow rate (Q) and alcohol volume content (V) in alcohol mixed gas. The data are shown in attached table 1. Alcohol fuels include methanol, absolute ethanol and 95% ethanol, the same below.

example 2

[0015] The flow rate of air or natural gas is 2.4L / min, and the contact area of ​​alcohol liquid surface is 11cm 2 , use alcohol fuel to humidify air or natural gas to form a mixed gas of alcohol and air or natural gas, and measure the relationship between the alcohol fuel temperature (T) and the alcohol volume content (V) in the alcohol mixed gas. The data are shown in Table 2.

example 3

[0017] The flow rate of air or natural gas is 3.0L / min. Use alcohol fuel to humidify the air or natural gas to form a mixed gas of alcohol and air or natural gas. The temperature of alcohol fuel is 30°C and 50°C. For the volume content (V) relationship of alcohol in the gas mixture, please see attached table 3 for the data.

[0018] Table 1 Air ① (or natural gas ② ) The relationship between the flow rate Q and the alcohol volume content in the alcohol mixture

[0019] Q, L / min 1.2 1.6 2.4 3.0 3.6 V MeOH ，％ ① 14.5 15.0 15.1 14.9 15.2 V MeOH ，％ ② 16.2 15.9 16.0 15.7 16.1 V EtOH ，％ ① 12.8 12.9 13.1 13.0 13.3 V 95％EtOH ，％ ① 10.5 11.0 11.1 10.8 10.9 V EtOH ，％ ② 13.2 12.9 13.0 13.3 12.8 V 95％EtOH ，％ ② 11.5 11.3 11.4 11.6 11.6

[0020] Table 2 Relationship between alcohol fuel temperature T and alcohol volume content in alcohol mixture gas

[0021] T，℃ 20 30 40 50 60 V MeOH ，％ ① 15...

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Abstract

The invention relates to a method for humidifying to air or natural gas by alcohol fuel and burning alcohol fuel by internal combustion engine. The invention can conquer problems that characteristics of alcohol and oil fuel are different so that two phases are not mixed in uniformity difficultly and the vehicle range is short. It is characterized in that the flux of air or natural gas is controlled and the gas is sent into alcohol fuel box from the inlet of air of natural gas; the alcohol fuel is preheated in heating sleeve and the temperature of heating sleeve is controlled in 20-60DEG C; gas-liquid contacting area and air phase cubage are fixed and air or natural gas are humidified; as alcohol fuel and air are carried by air or natural gas, stable mixing gas is formed by alcohol fuel and air, which enters into the cylinder and burns with mineral fuel or air. The invention conquers the disadvantage that liquid alcohol matrix liquid and liquid mineral fuel are not mixed in uniformity. The invention is provided with simple construction and wide applied range. It can be used in burning alcohol fuel of gas and diesel oil internal combustion engine and also be used in gasoline vehicle, diesel vehicle and natural gas engine. It can decrease oil consumption and improve economy. It is feasible.

Description

technical field [0001] The invention relates to a method for humidifying air or natural gas with alcohol fuel, which is applied to an internal combustion engine for blending methanol and ethanol fuel. Background technique [0002] Energy is the basis for the development of the national economy and a necessary resource for people to survive. With the advancement of science and technology and the development of human civilization, the demand for civil liquid fuels is increasing. Fossil fuels represented by oil are increasingly tense, and their prices remain high. Therefore, seeking one or more composite fuels mixed with fossil fuels will become the only way for future fuel development. Alcohol fuel has attracted worldwide attention as a cheap and clean energy source. However, due to the difference in physical and chemical properties between alcohol, gasoline and diesel oil, it is difficult to be miscible in any ratio. new problem arrived. [0003] Such as alcohol blended ga...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D19/08F02B43/12
CPCY02T10/32Y02T10/30
Inventor 唐晓东崔盈贤李晶晶何柏
Owner SOUTHWEST PETROLEUM UNIV
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