Method and device for constructing skeleton mechanism of combustion chemical reaction

Abstract

The invention relates to the technical field of combustion simulation, and discloses a method and a device for constructing a skeleton mechanism of a combustion chemical reaction. The construction method for the skeleton mechanism of the combustion chemical reaction comprises the following steps: acquiring effective fuel components participating in a combustion chemical reaction, and determining adetailed reaction mechanism of the combustion chemical reaction; selecting a plurality of sensitive reactions from the element reactions according to the influence of the element reactions on the combustion characteristics in the detailed reaction mechanism; generating a predetermined skeleton mechanism; judging whether a predetermined skeleton mechanism meets a predetermined condition or not; and if the judgment result is that the preset condition is met, determining the preset skeleton mechanism as the skeleton mechanism of the combustion chemical reaction, and if the judgment result is that the preset condition is not met, correcting the preset skeleton mechanism. According to the invention, a skeleton mechanism of a small-volume combustion chemical reaction suitable for engineering application can be generated, and meanwhile, the consistency of a main reaction for controlling the reaction activity and a detailed reaction mechanism is ensured.

Description

technical field [0001] The invention relates to the technical field of combustion simulation, in particular to a method for constructing a skeleton mechanism of a combustion chemical reaction and a device thereof. Background technique [0002] Against the backdrop of increasingly serious environmental pollution and increasingly stringent emission regulations, efficient and clean combustion technology is the only way for countries all over the world to deal with energy and environmental issues. In combustion technology, simulation technology has gradually become an equally important research method with the development of computer technology. Compared with experimental technology, simulation technology can not only reduce the research cost, but also can deeply explore microscopic phenomena such as flow, composition and chemical reaction in the combustion process. Among them, the development of combustion chemistry simulation technology provides a strong basis for people to u...

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Problems solved by technology

[0004] The following problems exist in the existing skeleton construction technology of the combustion chemical reaction mechanism, or the constructed mechanism is still too large to be directly applied to engineering development, or the constructed mechanism does not match the main reaction of the detailed mechanism controlling the reactivity

In the patent CN201410691334, a simplification method of the skeleton mechanism was established by using the method of element flow analysis combined with error propagation. In the example, the skeleton mechanism of methyl butyrate was obtained, but it contains more than 600 steps of elementary reactions, and the mechanism is still relatively large rather than directly applied to engineering development

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