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Control method of methyl alcohol splitting decomposition and hydrogen production hybrid power system based on engine waste heat recovery

A hybrid power system, methanol hydrogen production technology, applied in the direction of engine components, combustion engines, machines/engines, etc., can solve the problems of low energy utilization rate, difficult hydrogenation, low engine thermal efficiency, etc., to improve energy utilization rate, solve The thermal efficiency is not high, and the combustion effect is improved

Inactive Publication Date: 2016-11-23
HUNAN UNIV
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Problems solved by technology

The hybrid power system proposed by the present invention effectively improves the energy utilization rate of the engine, realizes the organic coupling of waste heat recovery, vehicle-mounted hydrogen production and fuel cells, and solves the problem of low engine thermal efficiency, low energy utilization rate and traditional fuel cell vehicles. Difficult problems with hydrogenation

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  • Control method of methyl alcohol splitting decomposition and hydrogen production hybrid power system based on engine waste heat recovery

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Embodiment Construction

[0018] The principle and system of the present invention will be further described in detail below in conjunction with the accompanying drawings. It should be noted that this embodiment is illustrative rather than restrictive, and does not limit the scope of protection of the present invention.

[0019] A preferred example according to the present invention is a hybrid power system of a vehicle, such as figure 1 shown. The hybrid power system is composed of methanol cracking hydrogen production device, fuel cell system and power output device, among which:

[0020] Liquid methanol fuel is pumped from the methanol fuel tank 1 into the methanol cracker 3 after being pressurized by the electric liquid pump 2, absorbing the high-temperature exhaust waste heat of the engine 18 and undergoing a cracking reaction to obtain a high-temperature and high-pressure mixed gas containing carbon monoxide and hydrogen. The gas enters the condenser 5 for condensation, and the unreacted high-t...

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Abstract

The invention relates to a control method of a methyl alcohol splitting decomposition and hydrogen production hybrid power system based on engine waste heat recovery. The method comprises the step of by dividing the work operation of vehicles into nine states comprising a start state, an idle speed stop state, a starting state, a small load state, an intermediate load state, a large load state, a rapid acceleration state, a rapid deceleration state and a flameout parking state. By means of the method, the hybrid power system can work in the best economic region, engine waste heat is sufficiently recovered, the energy utilization rate is improved, fuel oil consumption and engine emission are reduced, and the purposes of energy conservation and emission reduction are truly achieved.

Description

technical field [0001] The present invention relates to a hybrid power system, in particular to a hybrid power system coupled with a fuel cell by cracking methanol with waste heat from an engine, specifically a hybrid power system of "waste heat recovery-methanol cracking-fuel cell". Background technique [0002] Energy saving and emission reduction is a hot topic in international research today. With the increasing number of motor vehicles in my country, the pollution caused by motor vehicles is becoming more and more serious. Engines are the main consumption devices of fossil fuels and one of the important sources of air pollution. One, its energy utilization rate is less than 40%. How to reduce engine emissions and improve energy utilization has become an important hot issue in the engine field. In order to achieve the purpose of improving the energy utilization rate of the engine and reducing emissions, fully recovering and utilizing the high-temperature exhaust heat of ...

Claims

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Application Information

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IPC IPC(8): B60K6/32B60K6/28F01N5/02F02M25/10
CPCB60K6/28B60K6/32F01N5/02F02M25/10Y02T10/12Y02T90/40
Inventor 周峰刘敬平付建勤刘琦舒俊王书千李洋洋周贤杰
Owner HUNAN UNIV
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