CN109115829A - A kind of evaporation of the overcritical hydrocarbon drop of Asia and combustion research system and method - Google Patents
A kind of evaporation of the overcritical hydrocarbon drop of Asia and combustion research system and method Download PDFInfo
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- CN109115829A CN109115829A CN201811020758.6A CN201811020758A CN109115829A CN 109115829 A CN109115829 A CN 109115829A CN 201811020758 A CN201811020758 A CN 201811020758A CN 109115829 A CN109115829 A CN 109115829A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
- G01N25/22—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
- G01N25/22—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures
- G01N25/26—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures using combustion with oxygen under pressure, e.g. in bomb calorimeter
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
- G01N25/22—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures
- G01N25/28—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures the rise in temperature of the gases resulting from combustion being measured directly
Abstract
The invention discloses a kind of evaporations of the overcritical hydrocarbon drop of Asia and combustion research system and method, the system comprises constant volume combustion bomb, air inlet system and exhaust system, hang drip apparatus, igniter, data collection system and image capturing system.The present invention is by being passed through the pressure-air of specified pressure to constant volume combustion bomb, to realize Asia/supercritical pressure environment of fuel droplet, and a thermocouple is embedded in fine quartz stick suspension drop internal, to obtain the drop temperature data synchronous with High Speed Photography Images, carry out the droplet burning test within the scope of from subcritical pressure boiler to supercritical pressure under multiple and different pressure environments, and the correlation test of different liquid-drop diameters can be carried out, the deep understanding to the overcritical behavior of drop is obtained by drop evaporation under the subcritical and supercritical environment of analysis and the variation of combustion characteristics.
Description
Technical field
The present invention relates to hydrocarbon fuel evaporation and combustion characteristic research technical field more particularly to it is a kind of it is sub- supercritical carbon
The evaporation of hydrogen drop and combustion research system and method.
Background technique
Drop combustion by evaporation process is the basic control unit of spray burning, and the further investigation to drop evaporation and burning is
The primary demand of spray burning phenomenon and mechanism is illustrated, therefore the evaporation of fuel droplet and combustion characteristics research are liquid fuel applications
The important component of research.Direct-injection internal combustion engine, liquid-propellant rocket engine, gas turbine, pulse-knocking engine of new generation
The critical item of thermodynamics of injection fuel is reached with the combustion chamber environment of the high-pressure combustions equipment such as liquid fuel punching engine
Part, liquid fuel enter combustion chamber with subcritical initial temperature jet atomization, are atomized the fuel droplet of formation critical higher than its
Experience is evaporated, is mixed with air, catching fire and combustion process in the environment of pressure and critical-temperature, within this duration, drop from
The rapid heat temperature raising of subcritical temperature is simultaneously likely to occur by the migration of subcritical state to supercriticality, due to supercritical state
The physical property of all fluids such as the density, viscosity, surface tension, vaporization enthalpy of fluid under state, heat transfer coefficient, solubility and dielectric constant
Change dramatically can occur, so that supercritical fluid has many unique properties.Therefore fuel droplet evaporation in supercritical environment
It is even more the important research content that Combustion field is concerned for a long time with combustion characteristics.Liquid is mainly carried out in recent years in the country
Drip low pressure (be lower than fuel critical pressure) under normal pressure evaporation and experimental study and supercritical environment in fuel droplet
The numerically modeling of evaporation and burning, and it is less with the research of combustion characteristic research to carry out in supercritical environment fuel droplet evaporation,
In response to this problem, the invention proposes a kind of evaporations of the overcritical hydrocarbon drop of Asia and combustion research system and method.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of evaporations of the overcritical hydrocarbon drop of Asia and combustion research system
System and method.
The present invention is realized by following technological means solves above-mentioned technical problem:
The evaporation and combustion research system of a kind of overcritical hydrocarbon drop of Asia, comprising:
Constant volume combustion bomb as test chamber；
Air inlet system and exhaust system are connected with constant volume combustion bomb, are filled with high pressure gas when for testing into constant volume combustion bomb, and
High pressure gas is discharged after the completion of test；
Drip apparatus is hung, is installed in constant volume combustion bomb, the drop for hanging test；
Igniter is installed in constant volume combustion bomb, for the test drop for hanging on and hanging on drip apparatus that ignites；
Data collection system is installed on outside constant volume combustion bomb, for acquiring the number such as the temperature in experimentation, voltage
According to；
Image capturing system is installed on outside constant volume combustion bomb, for acquiring drop combustion process transient changing image.
Preferably, a kind of evaporation of the overcritical hydrocarbon drop of Asia and combustion research system, the constant volume burning
Bullet is rectangular-shape, and observation window, the constant volume combustion bomb left side are all arranged on the left side and right side of the constant volume combustion bomb
The observation window in face is identical with the height of the observation window of constant volume combustion bomb right side.
Preferably, a kind of evaporation of the overcritical hydrocarbon drop of Asia and combustion research system, the air inlet system and exhaust system
Including air inlet pipe, high pressure gas cylinder and exhaust pipe, the air inlet pipe is all connected to constant volume combustion bomb inside with exhaust pipe, the high pressure
Gas cylinder is connected with air inlet pipe, and pressure gauge is equipped in the air inlet pipe, is fitted with valve on the air inlet pipe and exhaust pipe
Door.
Preferably, a kind of evaporation of the overcritical hydrocarbon drop of Asia and combustion research system, the extension drip apparatus
It is spherical fine quartz stick for bottom end, the bottom end of the fine quartz stick is located at constant volume combustion bomb observation window shaft core position.
Preferably, a kind of evaporation of the overcritical hydrocarbon drop of Asia and combustion research system, the igniter
Including igniter and transformer, the igniter is nickel chromium triangle heating coil, under the igniter is set to extension drip apparatus just
Portion, the transformer are set to outside constant volume combustion bomb, the transformer and igniter electrical connection.
Preferably, a kind of evaporation of the overcritical hydrocarbon drop of Asia and combustion research system, the data acquisition
System includes data collector, computer I, signal generator, thermocouple I and thermocouple II, the data collector setting
Outside constant volume combustion bomb, the thermocouple I is embedded in the ball-shaped end position of fine quartz stick, the thermocouple II installation
Close to the position of fine quartz stick ball-shaped end, the data collector and thermocouple I, thermocouple II inside constant volume combustion bomb
And transformer is electrically connected, the computer I and data collector are electrically connected.
Preferably, a kind of evaporation of the overcritical hydrocarbon drop of Asia and combustion research system, the Image Acquisition
System includes that backlight, high speed camera and computer II, the backlight are set to outside constant volume combustion bomb, and the back
Light source is located at the center of observation window on the right side of constant volume combustion bomb, and the backlight uses tungsten sodium lamp, the high speed camera
It is set to outside constant volume combustion bomb and is located at the center of left sides window, the high speed camera and computer II electrically connect
It connects, the signal generator and high speed camera, data collector are electrically connected.
A kind of evaporation of the overcritical hydrocarbon drop of Asia and the test method of combustion research system, comprising the following steps:
(1) fuel droplet is hung on to the hemispherical bottom end of fine quartz stick using micro syringe；
(2) constant volume combustion bomb is sealed, is then passed through high pressure gas into constant volume combustion bomb using high pressure gas cylinder and air inlet pipe,
And reaching specified test pressure, high pressure gas is prepared by nitrogen and oxygen, and volume fraction is respectively nitrogen 79%, oxygen 21%；
(3) backlight is opened, high speed camera and data collection system are opened and is in state to be triggered, opening signal occurs
Device；
(4) drop is lighted in igniter energization, and synchronous signal generator issues Transistor-Transistor Logic level signal triggering high speed camera and data
Acquisition system, the evaporation and combustion process of synchronous recording fuel droplet；
(5) valve opened on exhaust pipe after the completion of burning and record releases the high pressure gas in constant volume combustion bomb；
(6) it is passed through fresh air sufficiently into constant volume combustion bomb residual gas is thoroughly discharged, is cooled to room temperature and prepares
Lower battery of tests.
The present invention has the advantages that the present invention is by being passed through the pressure-air of specified pressure to constant volume combustion bomb, to realize
The Asia of fuel droplet/supercritical pressure environment, and it is embedded in a thermocouple in fine quartz stick suspension drop internal, to obtain and height
The synchronous drop temperature data of fast photographs, carries out multiple and different pressure rings within the scope of from subcritical pressure boiler to supercritical pressure
Droplet burning test under border, and the correlation test of different liquid-drop diameters can be carried out, by analyzing subcritical and supercritical environment
Lower drop evaporation changes with combustion characteristics to obtain the deep understanding to the overcritical behavior of drop.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the schematic enlarged-scale view at A of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
The evaporation and combustion research system of a kind of overcritical hydrocarbon drop of Asia, comprising:
Constant volume combustion bomb 1 as test chamber；
Air inlet system and exhaust system 2 and constant volume combustion bomb 1 connect, and are filled with high pressure gas into constant volume combustion bomb 1 when for testing,
And high pressure gas is discharged after the completion of test；
Drip apparatus 3 is hung, is installed in constant volume combustion bomb 1, the drop for hanging test；
Igniter 4 is installed in constant volume combustion bomb 1, for the test drop for hanging on and hanging on drip apparatus 3 that ignites；
Data collection system is installed on outside constant volume combustion bomb 1, for acquiring the number such as the temperature in experimentation, voltage
According to；
Image capturing system is installed on outside constant volume combustion bomb 1, for acquiring drop combustion process transient changing image.
Preferably, the constant volume combustion bomb 1 is rectangular-shape, on the left side and right side of the constant volume combustion bomb 1
Observation window 5, the height of the observation window 5 of 1 right side of observation window 5 and constant volume combustion bomb of 1 left side of constant volume combustion bomb are all set
It spends identical.
Observation window is all arranged in the left side and right side of constant volume combustion bomb, is used for the transmission of backlight on one side, facilitates on one side
High speed camera is taken pictures.
Preferably, the air inlet system and exhaust system 2 include air inlet pipe 6, high pressure gas cylinder 7 and exhaust pipe 8, the air inlet pipe 6 and row
Tracheae 8 is all connected to inside constant volume combustion bomb 1, and the high pressure gas cylinder 7 and air inlet pipe 6 connect, and is equipped in the air inlet pipe 6
Pressure gauge 9 is fitted with valve 10 on the air inlet pipe 6 and exhaust pipe 8.
When test, high pressure gas is sent into constant volume combustion bomb by high pressure gas cylinder by air inlet pipe, and air pressure is installed in air inlet pipe
Table facilitates the control of air pressure.
Preferably, it is spherical fine quartz stick that the extension drip apparatus 3, which is bottom end, and it is fixed that the bottom end of the fine quartz stick is located at
Hold 5 shaft core position of firebomb observation window.
The bottom end of fine quartz stick is designed as spherical shape, and drop is facilitated to hang.
Preferably, the igniter 4 includes igniter 11 and transformer 12, and the igniter 11 is nickel chromium triangle heating
Coil, the igniter 11, which is set to, hangs 3 positive bottom of drip apparatus, and the transformer 12 is set to outside constant volume combustion bomb 1,
The transformer 12 and igniter 11 are electrically connected.
Nickel chromium triangle heating coil below drop is as igniter；Transformer provides sufficiently large voltage for igniter quickly to draw
Fire drop.
Preferably, the data collection system includes data collector 13, computer I14, signal generator 15, thermoelectricity
Even I16 and thermocouple II17, the data collector 13 are set to outside constant volume combustion bomb 1, the thermocouple I16 insertion
In the ball-shaped end position of fine quartz stick, the thermocouple II17 is installed on 1 inside of constant volume combustion bomb close to fine quartz baseball
The position of shape end, the data collector 13 and thermocouple I16, thermocouple II17 and transformer 12 are electrically connected, described
Computer I14 and data collector 13 be electrically connected.
Thermocouple I is embedded in the position of fine quartz stick ball-shaped end, measures drop temperature；Thermocouple II is mounted on fine quartz
Near stick ball-shaped end, for measuring environment temperature near drop；Data collector acquires thermocouple I, thermocouple II, transformer
Output voltage and be transferred to computer I.
Preferably, the image capturing system includes backlight 18, high speed camera 19 and computer II20, the back
Light source 18 is set to outside constant volume combustion bomb 1, and the backlight 18 is located at the center of 1 right side observation window 5 of constant volume combustion bomb
Position, the backlight 18 use tungsten sodium lamp, and the high speed camera 19 is set to 1 outside of constant volume combustion bomb and is located at left side
The center of observation window 5, the high speed camera 19 and computer II20 are electrically connected, the signal generator 15 and height
Fast camera 19, data collector 13 are electrically connected.
Backlight is tungsten sodium lamp, and brightness is adjustable, and the test adjustment stage needs to change backlight illumination and high speed camera
Time for exposure come obtain preferably shooting image；Signal generator is for synchronous triggering high speed camera and data collector；It is high
Fast camera shooting obtains droplet burning process transient changing image and is transferred to computer II.
A kind of evaporation of the overcritical hydrocarbon drop of Asia and the test method of combustion research system, comprising the following steps:
(1) fuel droplet is hung on to the hemispherical bottom end of fine quartz stick using micro syringe；
(2) constant volume combustion bomb is sealed, is then passed through high pressure gas into constant volume combustion bomb using high pressure gas cylinder and air inlet pipe,
And reaching specified test pressure, high pressure gas is prepared by nitrogen and oxygen, and volume fraction is respectively nitrogen 79%, oxygen 21%；
(3) backlight is opened, high speed camera and data collection system are opened and is in state to be triggered, opening signal occurs
Device；
(4) drop is lighted in igniter energization, and synchronous signal generator issues Transistor-Transistor Logic level signal triggering high speed camera and data
Acquisition system, the evaporation and combustion process of synchronous recording fuel droplet；
(5) valve opened on exhaust pipe after the completion of burning and record releases the high pressure gas in constant volume combustion bomb；
(6) it is passed through fresh air sufficiently into constant volume combustion bomb residual gas is thoroughly discharged, is cooled to room temperature and prepares
Lower battery of tests.
The present invention is by being passed through the pressure-air of specified pressure to constant volume combustion bomb, to realize that the Asia of fuel droplet/super is faced
Boundary's pressure environment, and it is embedded in a thermocouple in fine quartz stick suspension drop internal, it is synchronous with High Speed Photography Images to obtain
Drop temperature data carries out the droplet burning examination within the scope of from subcritical pressure boiler to supercritical pressure under multiple and different pressure environments
It tests, and the correlation test of different liquid-drop diameters can be carried out, by analyzing drop evaporation and burning under subcritical and supercritical environment
The variation of characteristic is to obtain the deep understanding to the overcritical behavior of drop.
It should be noted that, in this document, such as first and second or the like relational terms are used merely to one if it exists
A entity or operation with another entity or operate distinguish, without necessarily requiring or implying these entities or operation it
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to
Cover non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or setting
Standby intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in the process, method, article or apparatus that includes the element.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these modification or
Replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (8)
1. a kind of evaporation of the overcritical hydrocarbon drop of Asia and combustion research system characterized by comprising
Constant volume combustion bomb as test chamber；
Air inlet system and exhaust system are connected with constant volume combustion bomb, are filled with high pressure gas when for testing into constant volume combustion bomb, and testing
High pressure gas is discharged after the completion；
Drip apparatus is hung, is installed in constant volume combustion bomb, the drop for hanging test；
Igniter is installed in constant volume combustion bomb, for the test drop for hanging on and hanging on drip apparatus that ignites；
Data collection system is installed on outside constant volume combustion bomb, for acquiring the data such as the temperature in experimentation, voltage；
Image capturing system is installed on outside constant volume combustion bomb, for acquiring drop combustion process transient changing image.
2. a kind of evaporation of the overcritical hydrocarbon drop of Asia according to claim 1 and combustion research system, feature exist
In: the constant volume combustion bomb is rectangular-shape, observation window is all arranged on the left side and right side of the constant volume combustion bomb, institute
The observation window for stating constant volume combustion bomb left side is identical with the height of the observation window of constant volume combustion bomb right side.
3. a kind of evaporation of the overcritical hydrocarbon drop of Asia according to claim 1 and combustion research system, feature exist
It include air inlet pipe, high pressure gas cylinder and exhaust pipe in: air inlet system and exhaust system, the air inlet pipe and exhaust pipe are all and constant volume combustion bomb
Inside connection, the high pressure gas cylinder are connected with air inlet pipe, and pressure gauge, the air inlet pipe and row are equipped in the air inlet pipe
Valve is fitted on tracheae.
4. a kind of evaporation of the overcritical hydrocarbon drop of Asia according to claim 2 and combustion research system, feature exist
In: the extension drip apparatus is that bottom end is spherical fine quartz stick, and the bottom end of the fine quartz stick is located at constant volume burning spotting
Window shaft core position.
5. a kind of evaporation of the overcritical hydrocarbon drop of Asia according to claim 4 and combustion research system, feature exist
In: the igniter includes igniter and transformer, and the igniter is nickel chromium triangle heating coil, and the igniter is set
It is placed in and hangs drip apparatus positive bottom, the transformer is set to outside constant volume combustion bomb, the transformer and igniter electrical connection.
6. a kind of evaporation of the overcritical hydrocarbon drop of Asia according to claim 5 and combustion research system, feature exist
In: the data collection system include data collector, computer I, signal generator, thermocouple I and thermocouple II, it is described
Data collector be set to outside constant volume combustion bomb, the thermocouple I is embedded in the ball-shaped end position of fine quartz stick, institute
The thermocouple II stated is installed on the position inside constant volume combustion bomb close to fine quartz stick ball-shaped end, the data collector and
Thermocouple I, thermocouple II and transformer are electrically connected, and the computer I and data collector are electrically connected.
7. a kind of evaporation of the overcritical hydrocarbon drop of Asia according to claim 6 and combustion research system, feature exist
In: the image capturing system includes that backlight, high speed camera and computer II, the backlight are set to constant volume burning
Outside bullet, and the backlight is located at the center of observation window on the right side of constant volume combustion bomb, and the backlight uses tungsten halogen
Lamp, the high speed camera are set to the center for outside constant volume combustion bomb and being located at left sides window, the high speed phase
Machine and computer II are electrically connected, and the signal generator and high speed camera, data collector are electrically connected.
8. a kind of evaporation based on the described in any item overcritical hydrocarbon drops of Asia of claim 1-7 and combustion research system
Test method, it is characterised in that: the following steps are included:
(1) fuel droplet is hung on to the hemispherical bottom end of fine quartz stick using micro syringe；
(2) constant volume combustion bomb is sealed, is then passed through high pressure gas into constant volume combustion bomb using high pressure gas cylinder and air inlet pipe, and reach
To specified test pressure, high pressure gas is prepared by nitrogen and oxygen, and volume fraction is respectively nitrogen 79%, oxygen 21%；
(3) backlight is opened, high speed camera and data collection system are opened and is in state to be triggered, opening signal generator；
(4) drop is lighted in igniter energization, and synchronous signal generator issues Transistor-Transistor Logic level signal triggering high speed camera and data acquisition
System, the evaporation and combustion process of synchronous recording fuel droplet；
(5) valve opened on exhaust pipe after the completion of burning and record releases the high pressure gas in constant volume combustion bomb；
(6) it is passed through fresh air sufficiently into constant volume combustion bomb residual gas is thoroughly discharged, is cooled to room temperature and prepares next
Group test.
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| CN112304621A (en) * | 2020-09-30 | 2021-02-02 | 中国人民解放军战略支援部队航天工程大学 | Phase adjusting device and method for fuel droplets in high-pressure and acoustic oscillation environments |
| CN112730510A (en) * | 2020-12-24 | 2021-04-30 | 西安交通大学 | Liquid drop radiation heat exchange experimental device and method |
| CN113640337A (en) * | 2021-07-23 | 2021-11-12 | 哈尔滨工业大学 | Experimental device and experimental method for researching evaporation and coking of hydrocarbon fuel liquid drops on micro-scale hot wall surface |
| CN113640337B (en) * | 2021-07-23 | 2024-04-05 | 哈尔滨工业大学 | Experimental device and experimental method for researching evaporation and coking of hydrocarbon fuel droplets on micro-scale hot wall surface |
| CN113640453A (en) * | 2021-08-19 | 2021-11-12 | 常州大学 | Combustion device and method suitable for testing properties of solid-liquid fuel |
| CN113588649A (en) * | 2021-09-14 | 2021-11-02 | 中国科学院大连化学物理研究所 | Visualization device for liquid drop evaporation and combustion at high temperature and high pressure and use method thereof |
| CN114858964A (en) * | 2022-05-08 | 2022-08-05 | 上海交通大学 | Single-drop suspension system for research on Lepton effect of liquid fuel |
| CN115267045A (en) * | 2022-08-08 | 2022-11-01 | 浙江省海洋开发研究院 | Liquid drop evaporation combustion test device |
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