Liquid fuel gas phase Bunsen burner laminar flame propagation velocity measurement device and its measurement method

Abstract

The invention provides a gaseous-phase Bunsen burner laminar flame propagation speed measurement device and a gaseous-phase Bunsen burner laminar flame propagation speed measurement method for a liquid fuel. The device comprises a Bunsen burner, wherein the Bunsen burner is connected with a temperature measurement display (thermocouple), a cold air heating system and a liquid fuel evaporation system respectively; the liquid fuel evaporation system is connected with an injection pump through a rubber pipeline; the cold air heating system is communicated with external air; a flame image acquisition and processing device is arranged beside the Bunsen burner. The device is simple, convenient to operate, low in cost and favorable for basic comparison between burning characteristics of different liquid fuels, and the rapid fuel selection of a spray burning system is supported. A high-speed digital camera is adopted for the measurement method, a flame conical surface can be continuously shot, a flame image cosine law method is used for calculating the gaseous-phase Bunsen burner laminar flame propagation speed of the liquid fuel according to current mixed gas speed, and the measurement method is directly provided based on the definition of the flame propagation speed, and is simple and effective.

Description

technical field [0001] The invention relates to the field of liquid fuel gas-phase laminar flow combustion, in particular to a liquid fuel gas-phase Bunsen burner laminar flame propagation velocity measurement device and a measurement method thereof. Background technique [0002] At present, the number of vehicles using liquid fuel as propellant has increased significantly in China, and energy and environment issues have become the focus of attention. As the price of liquid fuel rises, global warming and a series of other environmental problems become increasingly prominent, the quality of liquid fuel must be improved to meet the requirements of energy saving and environmental protection. The basic research on the combustion of new synthetic liquid fuels is helpful to the selection of fuel for spray combustion systems. The purpose of studying liquid fuel gas-phase laminar combustion is to understand the kinetic characteristics of liquid fuel gas-phase laminar flow. The flam...

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Problems solved by technology

[0003] The literature (papers, reports and patents) published so far has mainly focused on gaseous fuels on the laminar flame propagation velocity through the Bunsen burner, and the laminar flame propagation velocity of liquid fuels has been mainly studied through the constant volume incendiary bomb test device. , although the constant volume incendiary bomb test device can measure the laminar flame propagation velocity more accurately, but its structure is complex, the cost is high, and it is not easy to realize

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