CN109829235A - A kind of engine fuel consumption rate calculation method based on molal quantity equilibrium principle - Google Patents
A kind of engine fuel consumption rate calculation method based on molal quantity equilibrium principle Download PDFInfo
- Publication number
- CN109829235A CN109829235A CN201910100087.2A CN201910100087A CN109829235A CN 109829235 A CN109829235 A CN 109829235A CN 201910100087 A CN201910100087 A CN 201910100087A CN 109829235 A CN109829235 A CN 109829235A
- Authority
- CN
- China
- Prior art keywords
- fuel
- consumption rate
- indicate
- fuel consumption
- engine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
A kind of engine fuel consumption rate calculation method based on molal quantity equilibrium principle, belongs to engine fuel consumption rate detection technique field.It is characterized by comprising following steps: step 1, calculating various quality of fuel scores；Step 2, total air inlet molar flow is acquired；Step 3, the volume fraction of each gas, the smoke intensity of soot and new charge flow are obtained；Step 4, combustion reaction model is established；Step 5, the fuel consumption rate without engine in the case where soot part is obtained；Step 6, the corresponding fuel consumption rate in soot part is obtained；Step 7, the practical fuel consumption rate of engine is obtained.During by being calculated based on the engine fuel consumption rate calculation method of molal quantity equilibrium principle, all important gas components and soot are considered in interior, the influence of EGR is had also contemplated simultaneously, the computational accuracy for greatly improving fuel consumption rate, advantageously to the calculating of fuel consumption rate under different operating conditions.
Description
Technical field
A kind of engine fuel consumption rate calculation method based on molal quantity equilibrium principle, belongs to engine fuel consumption rate
Detection technique field.
Background technique
Currently, when carrying out the measurement of engine fuel consumption rate, usually still based on mass method and volumetric method, measuring instrument
It is then traditional fuel consumption meter.All there is certain disadvantage when laboratory engine fuel consumption rate measures in both measurement methods
End.On the one hand, it needs to carry out the oil supply system of engine reconfiguration when measurement, i.e., disassembling and assembling engine oil feed line and concatenates sensing
Device thus destroys the original structure of engine, does not meet the principle of non-disassembly measurement.On the other hand, gasoline engine is being utilized
When in-cylinder direct-jet system or diesel engine high-pressure co-rail system realize the high-pressure injections of low boiling range fuel such as gasoline, ethyl alcohol, fuel is easy
Volatilization forms bubble in pipeline, causes traditional fuel consumption meter biggish fluctuation and error in measurement.
In recent years, to realize cleaning burning, generalling use exhaust gas recycling (EGR) technology reduces in-cylinder combustion temperature to subtract
Few NOXDischarge.(EGR) technology is recycled based on exhaust gas, some new calculating also occurs for the fuel consumption rate of engine
Method, such as based on the calculation method of Carbon balance, however due to containing more CO, CO in exhaust gas2With unburned HC, thus establish
Need to fully consider the influence of EGR in model.And in engine exhaust, carbon is mainly with CO, CO2Exist with HC form,
And the computation model based on Carbon balance principle usually ignores the carbon in soot.Due to easily raw under the conditions of low-temperature burning
At more soot, the accuracy that engine fuel consumption rate calculates is vulnerable to influence.
Summary of the invention
The technical problem to be solved by the present invention is overcoming the deficiencies of the prior art and provide a kind of by all important gases
In component and soot are considered in, while the influence of EGR is had also contemplated, greatly improves the computational accuracy of fuel consumption rate, it is right
The engine fuel consumption rate based on molal quantity equilibrium principle of the calculating of fuel consumption rate advantageously calculates under different operating conditions
Method.
The technical solution adopted by the present invention to solve the technical problems is: should be fired based on the engine of molal quantity equilibrium principle
Specific oil consumption calculation method, characterized by the following steps:
Step 1, fuel parameter is calculated, calculates various quality of fuel scores；
Step 2, inlet condition is calculated, total air inlet molar flow is acquired in conjunction with EGR rate；
Step 3, the CO in exhaust is measured by exhaust gas analyzer2, CO and HC volume fraction, soot is measured by smokemetor
Smoke intensity, and new charge flow is measured to obtain by charge flow rate；
Step 4, CO in the exhaust measured according to exhaust gas analyzer in step 32, CO and HC volume fraction, in conjunction with starting
The combustion reaction mechanisms of machine establish combustion reaction model；
Step 5, the fuel consumption rate without engine in the case where soot part is obtained；
Step 6, the corresponding fuel consumption rate in soot part is obtained；
Step 7, the practical fuel consumption rate of engine is obtained.
Preferably, combustion reaction model described in step 4 are as follows:
aCmHnOk+bO2=cCO+dCO2+eH2O+fH2
In formula: m indicates the molecular formula coefficient of carbon in fuel；N indicates the molecular formula coefficient of protium in fuel；K table
Show the molecular formula coefficient of oxygen element in fuel；A, b, c, d, e, f indicate reaction equation coefficient, parameter m, n, k and a, b, c,
D, the quantitative relationship between e, f is determined by element conservation mode.
Preferably, the element conservation mode, includes the following steps:
Step a, the CO in exhaust are equal to the CO volume fraction in being vented and fuel with the molar ratio for the fuel for participating in react
CO and CO in the product and exhaust of the molecular formula coefficient of middle carbon2The sum of volume fraction ratio:
Step b, the CO in exhaust2It is equal to CO in exhaust with the molar ratio for the fuel for participating in reacting2Volume fraction and fuel
CO and CO in the product and exhaust of the molecular formula coefficient of middle carbon2The sum of volume fraction ratio:
Step c, by step a and H2The volume fraction of OAcquire H in product2O and participation reactive fuel molal quantity
Than value expression:
Step d acquires H in exhaust by the expression formula of step a, step b and parameter K2With mole for participating in reactive fuel
Number ratio:
Step e is acquired the O for participating in reaction by step a~step c2With the molal quantity ratio for the fuel for participating in reacting are as follows:
Step f, in fuel combination in fuel combination carbon molecular formula Coefficient m, the molecular formula coefficient n of hydrogen and the molecule of oxygen
Formula coefficient k is respectively as follows:
In step a~step f expression formula, m indicates the molecular formula coefficient of carbon in fuel；N indicates hydrogen in fuel
The molecular formula coefficient of element；K indicates the molecular formula coefficient of oxygen element in fuel；A, b, c, d, e, f indicate reaction equation coefficient,Indicate the volume fraction of CO wet basis,Indicate CO2The volume fraction of wet basis,Indicate H2The volume of O point
Number, miIndicate the molecular formula coefficient of carbon in i-th kind of fuel；niIndicate the molecular formula coefficient of protium in i-th kind of fuel；ki
Indicate that the molecular formula coefficient of oxygen element in i-th kind of fuel, K are constant, expression formula are as follows:
Preferably, the H2The volume fraction of OAre as follows:
In formula: m indicates the molecular formula coefficient of carbon in fuel；N indicates the molecular formula coefficient of protium in fuel；Indicate the volume fraction of CO wet basis,Indicate CO2The volume fraction of wet basis, K indicate constant.
Preferably, various quality of fuel scores described in step 1 are as follows:
In formula: i indicates i-th kind of fuel；J indicates the fuel type in fuel combination；ρiIndicate the density of i-th kind of fuel；
Vi indicates the volume of i-th kind of fuel.
Preferably, air inlet molar flow described in step 2Are as follows:
In formula:Indicate new charge flow, L/h；REGRIndicate EGR rate, %.
Preferably, the fuel consumption rate without engine in the case where soot part described in step 5 are as follows:
In formula: MfIndicate the molal weight of fuel,It is the unit time without the participation reaction for generating soot part
Fuel molal quantity.
Preferably, fuel molal quantity of the unit time without the participation reaction for generating soot partAre as follows:
In formula,Indicate total air inlet molar flow, REGRIndicate EGR rate,Indicate the volume fraction of HC emissions,Indicate CO in exhaust2The volume fraction of wet basis.
Compared with prior art, the present invention has the beneficial effects that
During by being calculated based on the engine fuel consumption rate calculation method of molal quantity equilibrium principle,
In all important gas components and soot are considered in, while the influence of EGR is had also contemplated, greatly improves fuel consumption
The computational accuracy of rate, advantageously to the calculating of fuel consumption rate under different operating conditions.It is suitable for using fuel combination or replaces simultaneously
The case where Replacing fuel, application range are wider.
Detailed description of the invention
Fig. 1 is the engine fuel consumption rate calculation method flow chart based on molal quantity equilibrium principle.
Fig. 2 is the engine fuel consumption rate calculation method iterative method calculation flow chart based on molal quantity equilibrium principle.
Specific embodiment
Fig. 1~2 are highly preferred embodiment of the present invention, and 1~2 the present invention will be further described with reference to the accompanying drawing.
Embodiment 1:
As shown in Figure 1, a kind of engine fuel consumption rate calculation method based on molal quantity equilibrium principle, including walk as follows
It is rapid:
Step 1, fuel parameter is calculated, calculates various quality of fuel scores；
Fuel parameter is calculated, the mass fraction ω of gasoline in fuel, diesel oil or other alternative fuel is calculatedi
The expression formula (formula 1) of (%) are as follows:
In formula: i indicates i-th kind of fuel；J indicates the fuel type in fuel combination；ρiIndicate the density of i-th kind of fuel；
Vi indicates the volume of i-th kind of fuel.
Step 2, inlet condition is calculated, total air inlet molar flow is acquired in conjunction with EGR rateTable
Up to formula (formula 2) are as follows:
In formula:Indicate new charge flow, L/h；REGRIndicate EGR rate, %.
Step 3, CO, CO in being vented2With the volume fraction of HC, the smoke intensity and new charge flow of soot.
CO, CO in exhaust is measured by exhaust gas analyzer2With the volume fraction of HC, the smoke intensity of soot is measured by smokemetor,
And new charge flow is measured to obtain by charge flow rate.
According to CO, CO in exhaust2Volume fraction can further acquire H2The volume fraction of OThe expression formula of (%)
(formula 3) are as follows:
In formula: m indicates the molecular formula coefficient of carbon in fuel；N indicates the molecular formula coefficient of protium in fuel；Indicate the volume fraction of CO wet basis,Indicate CO2The volume fraction of wet basis, K indicate constant, value and exhaust
Middle CO, CO2、H2O and H2Volume fraction it is related, the value range of K is between 3.5~3.8, and general K takes 3.8, K that can pass through table
It is indicated up to formula (formula 4):
When measuring the volume fraction of each gas component in exhaust using exhaust gas analyzer, CO and CO2Measurement result be dry
Base, when calculating, need CO and CO2Butt be converted into wet basis, the wet basis of COExpression formula (formula 5) and
CO2Wet basis(%) expression formula (formula 6) is respectively as follows:
In formula:Indicate the volume fraction of CO butt in exhaust gas, ppm.Indicate CO in exhaust gas2The body of butt
Fraction, %；
Step 4, combustion reaction model is established.
The volume fraction of each component and the burning of engine are anti-in the exhaust measured according to exhaust gas analyzer in step 3
Answer mechanism, it is established that the computation model of reaction front and back each component variation, the combustion reaction equation of the combustion reaction model of foundation
Are as follows:
aCmHnOk+bO2=cCO+dCO2+eH2O+fH2
In formula: m indicates the molecular formula coefficient of carbon in fuel；N indicates the molecular formula coefficient of protium in fuel；K table
Show the molecular formula coefficient of oxygen element in fuel；A, b, c, d, e, f indicate reaction equation coefficient.Parameter m, n, k and a, b, c,
D, the quantitative relationship between e, f can be determined by way of element conservation, specific to determine that steps are as follows:
According to element conservation principle, the CO in exhaust is equal to the volume of CO in exhaust with the molar ratio for the fuel for participating in reacting
The product of the molecular formula coefficient of carbon and CO and CO in exhaust in score and fuel2The sum of volume fraction ratio, public affairs can be used
Formula 7 indicates are as follows:
CO in exhaust2It is equal to CO in exhaust with the molar ratio for the fuel for participating in reacting2Volume fraction and fuel in carbon member
CO and CO in the product and exhaust of the molecular formula coefficient of element2The sum of volume fraction ratio, can be indicated with formula 8 are as follows:
Formula 8 combines above-mentioned formula 3 and formula 7 that can acquire H in product2O and participation reactive fuel are (without generation carbon
The part of cigarette) mole ratio value expression (formula 9):
H in exhaust can be acquired by formula 4, formula 7 and formula 82With participation reactive fuel (without the portion for generating soot
Point) molal quantity ratio, can be indicated with formula 10 are as follows:
According to element conservation principle and combine formula 7, formula 8 and formula 9 that can acquire the O for participating in reacting2It is anti-with participation
The molal quantity ratio for the fuel (without the part for generating soot) answered, can be indicated with formula 11 are as follows:
When, there are when the conventional fossil fuels such as vapour, diesel oil, molecular formula can be determined by analysis of oil in fuel combination.
Gasoline, diesel oil molecular formula determine after can be regarded as pure substance, bring into following formula carry out relevant calculation.
In fuel combination in fuel combination the molecular formula Coefficient m of carbon, the molecular formula coefficient n of hydrogen and oxygen molecular formula coefficient
K is indicated by following equation 12~14 respectively:
In formula, miIndicate the molecular formula coefficient of carbon in i-th kind of fuel；niIndicate the molecule of protium in i-th kind of fuel
Formula coefficient；kiIndicate the molecular formula coefficient of oxygen element in i-th kind of fuel.
Step 5, the fuel consumption rate without engine in the case where soot part is obtained.
According to molal quantity conservation principle, the sum of all molal quantitys generated into the molal quantity of cylinder and reaction and exhaust
Molal quantity is equal.It can further state are as follows: the molal quantity (being free of HC) and generate rubbing for HC that the molal quantity of air inlet, reaction generate
The sum of your number is equal to the molal quantity of exhaust, i.e., may be expressed as: by formula 15
In formula:Indicate that the unit time participates in the fuel molal quantity (without the part for generating soot) of reaction, mol/h；Indicate the volume fraction of HC emissions, %；Indicate the molal quantity of unit time exhaust, mol/h.
According to element conservation principle, CO is generated2Molal quantity and cycle gas in CO2The sum of molal quantity and CO in exhaust2
Molal quantity it is equal.It can be indicated with formula 16 are as follows:
The fuel (without the part for generating soot) that the unit time participates in reacting can be acquired by formula 15 and formula 16 to rub
That number, is indicated by formula 17 are as follows:
In formula,Indicate total air inlet molar flow, REGRIndicate EGR rate,Indicate the volume fraction of HC emissions,Indicate CO in exhaust2The volume fraction of wet basis.
Therefore, fuel consumption rate of the engine without the part for generating sootBy expression formula (formula 18)
It indicates are as follows:
In formula: MfIndicate the molal weight of fuel,The fuel of reaction is participated in (without generation soot for the unit time
Part) molal quantity.
Step 6, the corresponding fuel consumption rate in soot part is obtained.
The smoke intensity of soot is acquired first, carries out the measurement of smoke intensity using smoke opacimeter in the present embodiment, it can root
The smoke intensity (FSN) of soot, expression formula (formula 19) are acquired according to the exhaust light obscuration (N) measured are as follows:
N=0.12 × (FSN)3+0.62×(FSN)2+3.96×FSN
The red equation of the card that formula 19 combines simple cubic equation to solve can solve the smoke intensity of soot.
The discharge quality for the soot that the engine unit time generates is calculated according to the smoke intensity of sootStart
The soot emissions quality that the machine unit time generatesIt is expressed by formula 20 are as follows:
In formula: PBIndicate atmospheric pressure, kPa；T indicates environment temperature, K；Indicate the fuel consumption rate of engine, kg/
h。
The unknown quantity involved in formula 20 It can be calculated by iterative method, circular is as shown in Figure 2:
Step 6-1 first assumes the fuel consumption rate of engineNumerical value, be denoted as
Step 6-2 calculates soot emissions quality according to the assumption value of the fuel consumption rate of engine
Step 6-3 utilizes soot emissions qualityThe fuel consumption rate of soot is calculated
The discharge quality of carbon in unit time sootAre as follows:
Unit time generates fuel molal quantity consumed by the part soot(mol/h) are as follows:
The corresponding fuel consumption rate of sootAre as follows:
Step 6-4, the calculated value for the engine fuel consumption rate being calculated；
The calculated value of engine fuel consumption rate are as follows:
Whether step 6-5, the calculated value of engine fuel consumption rate and the error of assumption value are less than or equal to 1%.
Whether the error of the calculated value and assumption value that judge engine fuel consumption rate is less than or equal to 1%, if it is less than etc.
In 1%, step 7 is executed, if it is greater than 1%, return step 6-1.
Step 7, the practical fuel consumption rate of engine is obtained.
Embodiment 2:
The present embodiment the difference from embodiment 1 is that: in the present embodiment, execute step 6 during, utilize filter paper type
Smokemetor measures, and can directly measure the smoke intensity (FSN) of soot.
The above described is only a preferred embodiment of the present invention, being not that the invention has other forms of limitations, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
Imitate embodiment.But without departing from the technical solutions of the present invention, according to the technical essence of the invention to above embodiments institute
Any simple modification, equivalent variations and the remodeling made, still fall within the protection scope of technical solution of the present invention.
Claims (8)
1. a kind of engine fuel consumption rate calculation method based on molal quantity equilibrium principle, it is characterised in that: including walking as follows
It is rapid:
Step 1, fuel parameter is calculated, calculates various quality of fuel scores；
Step 2, inlet condition is calculated, total air inlet molar flow is acquired in conjunction with EGR rate；
Step 3, the CO in exhaust is measured by exhaust gas analyzer2, CO and HC volume fraction, the smoke intensity of soot is measured by smokemetor,
And new charge flow is measured to obtain by charge flow rate；
Step 4, CO in the exhaust measured according to exhaust gas analyzer in step 32, CO and HC volume fraction, in conjunction with the combustion of engine
Reaction mechanism is burnt, combustion reaction model is established；
Step 5, the fuel consumption rate without engine in the case where soot part is obtained；
Step 6, the corresponding fuel consumption rate in soot part is obtained；
Step 7, the practical fuel consumption rate of engine is obtained.
2. the engine fuel consumption rate calculation method according to claim 1 based on molal quantity equilibrium principle, feature
It is: combustion reaction model described in step 4 are as follows:
aCmHnOk+bO2=cCO+dCO2+eH2O+fH2
In formula: m indicates the molecular formula coefficient of carbon in fuel；N indicates the molecular formula coefficient of protium in fuel；K indicates combustion
The molecular formula coefficient of oxygen element in material；A, b, c, d, e, f indicate reaction equation coefficient, parameter m, n, k and a, b, c, d, e, f
Between quantitative relationship pass through element conservation mode determine.
3. the engine fuel consumption rate calculation method according to claim 2 based on molal quantity equilibrium principle, feature
Be: the element conservation mode includes the following steps:
Carbon in the CO volume fraction and fuel that step a, CO in exhaust and the molar ratio for the fuel for participating in react are equal in exhaust
CO and CO in the product and exhaust of the molecular formula coefficient of element2The sum of volume fraction ratio:
Step b, the CO in exhaust2It is equal to CO in exhaust with the molar ratio for the fuel for participating in reacting2Volume fraction and fuel in carbon
CO and CO in the product and exhaust of the molecular formula coefficient of element2The sum of volume fraction ratio:
Step c, by step a and H2The volume fraction of OAcquire H in product2O and participation reactive fuel molal quantity ratio
Expression formula:
Step d acquires H in exhaust by the expression formula of step a, step b and parameter K2With the mole ratio for participating in reactive fuel
Value:
Step e is acquired the O for participating in reaction by step a~step c2With the molal quantity ratio for the fuel for participating in reacting are as follows:
Step f, the molecular formula system of the molecular formula Coefficient m of carbon in fuel combination in fuel combination, the molecular formula coefficient n of hydrogen and oxygen
Number k is respectively as follows:
In step a~step f expression formula, m indicates the molecular formula coefficient of carbon in fuel；N indicates protium in fuel
Molecular formula coefficient；K indicates the molecular formula coefficient of oxygen element in fuel；A, b, c, d, e, f indicate reaction equation coefficient,Indicate the volume fraction of CO wet basis,Indicate CO2The volume fraction of wet basis,Indicate H2The volume of O point
Number, miIndicate the molecular formula coefficient of carbon in i-th kind of fuel；niIndicate the molecular formula coefficient of protium in i-th kind of fuel；ki
Indicate that the molecular formula coefficient of oxygen element in i-th kind of fuel, K are constant, expression formula are as follows:
4. the engine fuel consumption rate calculation method according to claim 3 based on molal quantity equilibrium principle, feature
It is: the H2The volume fraction of OAre as follows:
In formula: m indicates the molecular formula coefficient of carbon in fuel；N indicates the molecular formula coefficient of protium in fuel；Table
Show the volume fraction of CO wet basis,Indicate CO2The volume fraction of wet basis, K indicate constant.
5. the engine fuel consumption rate calculation method according to claim 1 based on molal quantity equilibrium principle, feature
It is: various quality of fuel scores described in step 1 are as follows:
In formula: i indicates i-th kind of fuel；J indicates the fuel type in fuel combination；ρiIndicate the density of i-th kind of fuel；Vi is indicated
The volume of i-th kind of fuel.
6. the engine fuel consumption rate calculation method according to claim 1 based on molal quantity equilibrium principle, feature
It is: air inlet molar flow described in step 2Are as follows:
In formula:Indicate new charge flow, L/h；REGRIndicate EGR rate, %.
7. the engine fuel consumption rate calculation method according to claim 1 based on molal quantity equilibrium principle, feature
It is: the fuel consumption rate without engine in the case where soot part described in step 5 are as follows:
In formula: MfIndicate the molal weight of fuel,It rubs for the unit time without the fuel for the participation reaction for generating soot part
That number.
8. the engine fuel consumption rate calculation method according to claim 7 based on molal quantity equilibrium principle, feature
It is: fuel molal quantity of the unit time without the participation reaction for generating soot partAre as follows:
In formula,Indicate total air inlet molar flow, REGRIndicate EGR rate,Indicate the volume fraction of HC emissions,Indicate CO in exhaust2The volume fraction of wet basis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910100087.2A CN109829235B (en) | 2019-01-31 | 2019-01-31 | Engine fuel consumption rate calculation method based on mole number balance principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910100087.2A CN109829235B (en) | 2019-01-31 | 2019-01-31 | Engine fuel consumption rate calculation method based on mole number balance principle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109829235A true CN109829235A (en) | 2019-05-31 |
| CN109829235B CN109829235B (en) | 2022-12-30 |
Family
ID=66861986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910100087.2A Active CN109829235B (en) | 2019-01-31 | 2019-01-31 | Engine fuel consumption rate calculation method based on mole number balance principle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109829235B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111735848A (en) * | 2020-05-13 | 2020-10-02 | 中国航发贵阳发动机设计研究所 | Method for calculating specific heat of hydrocarbon gas |
| CN112818505A (en) * | 2020-12-22 | 2021-05-18 | 中国人民解放军火箭军工程大学 | Method for predicting combustion heat of hydrocarbon fuel per unit mass |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100224142A1 (en) * | 2007-10-23 | 2010-09-09 | Honda Motor Co., Ltd | Method of exhaust cleaning for internal combustion engine and exhaust cleaner |
| CN102435440A (en) * | 2011-09-29 | 2012-05-02 | 天津大学 | Method for utilizing single oxygen concentration sensor to test exhaust gas recirculation rate of diesel engine |
| CN103353321A (en) * | 2013-07-13 | 2013-10-16 | 佛山分析仪有限公司 | Method for measuring fuel consumption with carbon balancing method |
| CN103573480A (en) * | 2013-11-22 | 2014-02-12 | 西华大学 | Pure oxygen engine and combustion control method for pure oxygen engine |
| US20150046101A1 (en) * | 2013-08-12 | 2015-02-12 | Horiba, Ltd. | Fuel consumption calculation unit, fuel consumption measuring apparatus, and exhaust gas measuring apparatus |
-
2019
- 2019-01-31 CN CN201910100087.2A patent/CN109829235B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100224142A1 (en) * | 2007-10-23 | 2010-09-09 | Honda Motor Co., Ltd | Method of exhaust cleaning for internal combustion engine and exhaust cleaner |
| CN102435440A (en) * | 2011-09-29 | 2012-05-02 | 天津大学 | Method for utilizing single oxygen concentration sensor to test exhaust gas recirculation rate of diesel engine |
| CN103353321A (en) * | 2013-07-13 | 2013-10-16 | 佛山分析仪有限公司 | Method for measuring fuel consumption with carbon balancing method |
| US20150046101A1 (en) * | 2013-08-12 | 2015-02-12 | Horiba, Ltd. | Fuel consumption calculation unit, fuel consumption measuring apparatus, and exhaust gas measuring apparatus |
| CN104655215A (en) * | 2013-08-12 | 2015-05-27 | 株式会社堀场制作所 | Fuel consumption calculation unit and method, fuel consumption measuring apparatus, and exhaust gas measuring apparatus |
| CN103573480A (en) * | 2013-11-22 | 2014-02-12 | 西华大学 | Pure oxygen engine and combustion control method for pure oxygen engine |
Non-Patent Citations (1)
| Title |
|---|
| 孙丽玮 等: "基于碳平衡法的柴油车燃油消耗计算模型", 《小型内燃机与摩托车》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111735848A (en) * | 2020-05-13 | 2020-10-02 | 中国航发贵阳发动机设计研究所 | Method for calculating specific heat of hydrocarbon gas |
| CN112818505A (en) * | 2020-12-22 | 2021-05-18 | 中国人民解放军火箭军工程大学 | Method for predicting combustion heat of hydrocarbon fuel per unit mass |
| CN112818505B (en) * | 2020-12-22 | 2022-11-04 | 中国人民解放军火箭军工程大学 | Method for predicting combustion heat of hydrocarbon fuel per unit mass |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109829235B (en) | 2022-12-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Okafor et al. | Effects of hydrogen concentration on premixed laminar flames of hydrogen–methane–air | |
| Knop et al. | Modelling of combustion and nitrogen oxide formation in hydrogen-fuelled internal combustion engines within a 3D CFD code | |
| Subramanian et al. | Experimental investigations on performance, emission and combustion characteristics of Diesel-Hydrogen and Diesel-HHO gas in a Dual fuel CI engine | |
| Broustail et al. | Comparison of regulated and non-regulated pollutants with iso-octane/butanol and iso-octane/ethanol blends in a port-fuel injection spark-ignition engine | |
| Luo et al. | Experimental and numerical study on suitable diesel fuel surrogates in low temperature combustion conditions | |
| Balki et al. | The effect of compression ratio on the performance, emissions and combustion of an SI (spark ignition) engine fueled with pure ethanol, methanol and unleaded gasoline | |
| Broustail et al. | Experimental determination of laminar burning velocity for butanol and ethanol iso-octane blends | |
| Porpatham et al. | Effect of swirl on the performance and combustion of a biogas fuelled spark ignition engine | |
| Deng et al. | Experimental study on combustion and emission characteristics of a hydrogen-enriched compressed natural gas engine under idling condition | |
| Liu et al. | Experimental and numerical study of the pollution formation in a diesel/CNG dual fuel engine | |
| Hotta et al. | Ignition timing and compression ratio as effective means for the improvement in the operating characteristics of a biogas fueled spark ignition engine | |
| Kosmadakis et al. | Investigation of nitric oxide emission mechanisms in a SI engine fueled with methane/hydrogen blends using a research CFD code | |
| Su et al. | Improving the combustion performance of a gasoline rotary engine by hydrogen enrichment at various conditions | |
| Prasad et al. | Effect of hydrogen enrichment on performance, combustion, and emission of a methanol fueled SI engine | |
| CN109829235A (en) | A kind of engine fuel consumption rate calculation method based on molal quantity equilibrium principle | |
| Venugopal et al. | Experimental study of hydrous ethanol gasoline blend (E10) in a four stroke port fuel‐injected spark ignition engine | |
| Song et al. | Effect of initial pressure, temperature and equivalence ratios on laminar combustion characteristics of hydrogen enriched natural gas | |
| Ji et al. | A laminar burning velocity correlation for combustion simulation of hydrogen-enriched ethanol engines | |
| Rakopoulos et al. | Numerical and experimental study by quasi-dimensional modeling of combustion and emissions in variable compression ratio high-speed spark-ignition engine | |
| Sarkar et al. | Effect of intake charge preheating and equivalence ratio in a dual fuel diesel engine run on biogas and ethanol-blended diesel | |
| Sarabi et al. | Experimental analysis of in-cylinder combustion characteristics and exhaust gas emissions of gasoline–natural gas dual-fuel combinations in a SI engine | |
| Şahin et al. | Theoretical investigation of effects of light fuel fumigation on diesel engine performance and emissions | |
| Song et al. | Evaluation mass fraction burned obtained from the ion current signal fuelled with hydrogen/carbon dioxide and natural gas | |
| Bundele et al. | Experimental and computational study on the enhancement of engine characteristics by hydrogen enrichment in a biogas fuelled spark ignition engine | |
| Fosudo et al. | The impact of LPG composition on performance, emissions, and combustion characteristics of a pre-mixed spark-ignited CFR engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |