Constant volume combustion bomb and liquid fuel combustion performance testing method

A technology of constant-volume incendiary bombs and liquid fuels, which is applied in the direction of using combustion for chemical analysis, and can solve problems such as the inability to accurately control the air-fuel ratio of volume bombs

Inactive Publication Date: 2015-03-04
XIHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The improvement of constant-volume incendiary bombs is to add gasoline or diesel fuel injectors for pre-mixed combustion. However, considering the estimation of the volume of the constant-volume bomb’s inner cavity and the delay effect of opening and closing the fuel injector, it is impossible to accurately control the volume of the bomb. air-fuel ratio in

Method used

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  • Constant volume combustion bomb and liquid fuel combustion performance testing method
  • Constant volume combustion bomb and liquid fuel combustion performance testing method
  • Constant volume combustion bomb and liquid fuel combustion performance testing method

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Experimental program
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Embodiment 1

[0052] see Figure 1 to Figure 2. The constant-volume incendiary bomb described in this embodiment consists of an evaporator 11 , a heating device and an incendiary bomb 3 . The incendiary bomb control device 33 is signal-connected with the incendiary bomb 3 for controlling the ignition test. Incendiary bomb 3 is a known product, and the incendiary bomb selected in this embodiment is Beijing Institute of Technology BITEC-RD-QX-350. The incendiary bomb 3 is equipped with a second pressure detection device 32 for detecting the internal pressure of the incendiary bomb. The second pressure detection device 32 adopts a high-precision electronic pressure gauge. This embodiment provides an electronic pressure gauge with a model of DELTA DPA01M-P-100-100KPa, and its accuracy is 0.05% FPS.

[0053] The evaporator 11 is a closed container, the evaporator is provided with a feed inlet and a discharge port, and is equipped with a first temperature sensor 14 for detecting the internal t...

Embodiment 2

[0062] image 3 with Figure 4 The effect of using the constant volume incendiary bomb gasoline combustion performance test experiment described in embodiment 1 is shown.

[0063] This embodiment is carried out on the basis of the constant volume incendiary bomb described in Embodiment 1, and the liquid fuel is gasoline.

[0064] The evaporator is placed on the heating device, and the heating device heats the evaporator to above 600K. The final distillation temperature of gasoline is 468K. Therefore, setting the heating temperature at 480K and adding that the evaporator has been evacuated can ensure that the gasoline is completely evaporated.

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Abstract

The invention discloses a constant volume combustion bomb and a liquid fuel combustion performance testing method. The constant volume combustion bomb comprises a combustion bomb, an evaporator, a heating device and a vacuum suction device, a discharge outlet of the evaporator is connected to the combustion bomb by a discharge pipe, and a flow control valve is installed on the discharge pipe. The liquid fuel combustion performance testing method realizes complete vaporization of liquid fuel, accurate calculation of the amount of fuel fed into the constant volume combustion bomb by a partial pressure method, and gas distribution by a high-precision electronic pressure gauge so that an air-fuel ratio of the combustible gas mixture in the constant volume combustion bomb is accurately controlled. The constant volume combustor can be operated conveniently and controlled accurately. The liquid fuel combustion performance testing method fully utilizes the existing equipment and realizes combustion of liquid fuel in the combustion bomb and accurate control of a combustible gas mixture equivalence ratio by reasonable use.

Description

technical field [0001] The invention belongs to the field of fuel combustion performance testing, and relates to a constant-volume incendiary bomb, in particular to a constant-volume incendiary bomb aimed at testing the combustion performance of liquid fuels; at the same time, the invention also relates to using the constant-volume incendiary bomb to burn liquid fuel method of performance testing. Background technique [0002] In order to save energy and reduce vehicle engine emissions, scholars at home and abroad are devoting themselves to the development and research of new technologies and models to cope with the increasingly severe energy shortage and strict emission regulations. For the optimal design of the engine itself, the researchers ultimately study the combustion mechanism of the engine, fundamentally solve the combustion problem of the engine, and improve the power, economy and emission of the engine. However, due to the confined combustion space of the engine,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N31/12
Inventor 暴秀超陈超彭忆强童勇樊利康
Owner XIHUA UNIV
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