CN109964124A - Method for determining the calorific value and/or wobbe index of admixture of gas - Google Patents
Method for determining the calorific value and/or wobbe index of admixture of gas Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 51
- 239000007789 gas Substances 0.000 claims description 153
- 239000001257 hydrogen Substances 0.000 claims description 15
- 229910052739 hydrogen Inorganic materials 0.000 claims description 15
- 238000001514 detection method Methods 0.000 claims description 14
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 10
- 230000006870 function Effects 0.000 description 42
- 238000010438 heat treatment Methods 0.000 description 39
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 36
- 238000005259 measurement Methods 0.000 description 23
- 239000003345 natural gas Substances 0.000 description 18
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 16
- 229910052757 nitrogen Inorganic materials 0.000 description 8
- 238000002485 combustion reaction Methods 0.000 description 6
- 238000009826 distribution Methods 0.000 description 5
- 235000013399 edible fruits Nutrition 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002737 fuel gas Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 241000208340 Araliaceae Species 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003570 air Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 235000008434 ginseng Nutrition 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/22—Fuels; Explosives
- G01N33/225—Gaseous fuels, e.g. natural gas
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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
- G01N25/18—Investigating or analyzing materials by the use of thermal means by investigating thermal conductivity
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- General Chemical & Material Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
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Abstract
The method of the result parameter of the calorific value and/or wobbe index that the present invention relates to a kind of for determining description admixture of gas, this method includes the steps that being executed by determining device (1) below :-determine that being directed to for admixture of gas is selected from the parameter value of lucky two gas parameters of the following group, which includes: thermal conductivity, temperature conductivity, thermal capacity and density；The result parameter of the result as predetermined function is calculated, the function is only related with the parameter value of lucky two gas parameters.
Description
Technical field
The side of the result parameter of the calorific value and/or wobbe index that the present invention relates to a kind of for determining description admixture of gas
Method.Moreover, it relates to a kind of for determining the determining device of the result parameter.
Background technique
In natural gas network, provided gas volume is usually only detected for billing purpose in consumer side so far.
This is enough when that can continue to provide substantially constant gaseous mass.But if providing the consumer with from different storage caverns
Natural gas or other gases are mixed into the natural gas, then calorific value may change, to this gas supplied based on heat
The charging of value is more suitable.This becomes increasingly important, because can be mixed into such as biogas into natural gas or be produced by green electric power supply
Raw hydrogen or the gas being generated by it, to be able to achieve the utilization of renewable energy.
In addition, for burner operation advantageously, it is ensured that do not discharge too many energy during combustion of natural gas
And too many heat is not discharged, therefore to prevent these burners from occurring damaging or be seriously worn.Therefore also advantageously,
The calorific value or wobbe index of the determination of admixture of gas are considered when controlling corresponding burner.Wobbe index and admixture of gas
Calorific value it is directly proportional and be inversely proportional with the square root of relative density of the admixture of gas relative to atmospheric density.Such as with phase
Fuel gas like wobbe index is in the case where fuel gas is supplied to combustion process with constant nozzle exit pressure can be mutual
It changes.
So far, calorific value or wobbe index are mainly determined in provider-side.Thus for example it is known that using gas phase
Chromatograph, to separate the component of admixture of gas and it is thus determined that admixture of gas forms.By forming for admixture of gas
Calorific value or wobbe index can be determined with the known features of various gases.However, gas chromatograph be it is relatively large and expensive, from
And usually it is not suitable for using in consumer side.Therefore, a variety of alternatives have been developed, in the meantime to determine that gas is mixed
Close the calorific value of object.
Such as the known calorific value that admixture of gas is determined according to the thermal conductivity of admixture of gas, thermal capacity and density.This
A little measurement parameters can determine that admixture of gas is with sound by guiding admixture of gas via critical spray nozzle to cmos sensor
Speed flows through the critical spray nozzle.Cmos sensor can be used for determining thermal conductivity or parameter related with thermal capacity.By critical spray nozzle
Density can be derived in the case where knowing gas pressure.Herein disadvantageously, due to flowing through nozzle with the velocity of sound, the measurement side
Method can only be used to the volume flow limited.If admixture of gas should be measured in the continuous service with variable volumetric flow rate,
Significant extra charge therefore then is generated, to establish the measuring condition determined for calorific value.In addition it is also necessary to a number of other biographies
Sensor, such as pressure sensor.
Another method is the absorption for infra-red radiation for measuring the velocity of sound or density and additionally measuring fuel gas
Ability.However, not only requiring relatively expensive sensor to the measurement of infrared absorption but also to the measurement of the velocity of sound.
It it is known that such method, this method measurement admixture of gas thermal conductivity at different temperatures and thereby determine that
Such as calorific value or wobbe index.However, the measurement under different temperatures needs to be arranged two sensors or needs spaced apart
Alternate run, thus increase measurement expend one sensor at different ambient temperatures.
Summary of the invention
Therefore, task of the invention lies in providing a kind of method for determining calorific value or wobbe index, this method can be with
Lower technology expends to implement and be therefore particularly suited for use in consumer side.
The task is solved by the method for type mentioned in the beginning according to the present invention, and this method includes below by true
Determine the step of device executes:
--- determine being directed to selected from the parameter value of lucky two gas parameters of the following group, the group packet for admixture of gas
It includes: thermal conductivity, temperature conductivity, thermal capacity and density；
--- calculate as predetermined function result result parameter, the function only with lucky two gas
The parameter value of parameter is related.
Therefore, it is proposed, according to the invention, that only determining lucky two gas parameters of admixture of gas and thereby determining that knot
Fruit parameter.Here, it has realized that from the following group in the scope of the invention: in thermal conductivity, temperature conductivity, thermal capacity and density
Select gas parameter in the case where, it is already possible to by the parameter value of two gas parameters with good precision determine calorific value or
Wobbe index.In other words, for the admixture of gas important for combustion process, in particular for natural gas and for natural
The mixture of gas and hydrogen or other non-combustible gas, in calorific value or wobbe index and thermal conductivity, temperature conductivity, thermal capacity and density
In any two gas parameter parameter value between existence anduniquess association.Thermal conductivity is also referred to as heat conductivity and temperature conductivity
Referred to as thermal diffusivity.Therefore in three-dimensional parameter space (its first dimension distribute to calorific value or wobbe index and its in addition
Dimension strutted respectively by one of this group of parameter), all associated gas or admixture of gas are approximately located at and are in general bent
Face on.The face is defined by corresponding predetermined function.The determination to respective function will be described in greater detail below.
In the method according to the invention, the mixture of natural gas or natural gas and other gases can be especially determined
The result parameter of (as admixture of gas).Such as the admixture of gas can be mixed with hydrogen, relatively it is a high proportion of extremely
The natural gas of a kind of few hydrocarbon and/or surrounding air.
Determining calorific value can also be used according to the method for the present invention, determine that energy disappears by the calorific value and volume flow of gas
Consumption.Therefore, it is able to achieve to expend with lower technology according to the method for the present invention and such gas meter is provided, detection is mentioned
Calorific value corresponding with consumption volume can also be provided in the energy fluence of confession other than volume.Particularly advantageous here is determine
Device also detectable flow other than the parameter value of gas parameter.This is for example when carrying out detection flows using thermal measurement principle
It is possible, as it is following also will be explained in further detail as.
In the method according to the invention, the function can be predefined according to training data group, the training data
Group is that multiple gases and/or admixture of gas describe the parameter value for being directed to the two gas parameters and result parameter respectively.It is preferred that
Ground, training data group may include more than the parameter value of 100 kinds, especially hundreds of gases and/or admixture of gas.The function
It can be by will have the Function Fitting of predetermined structure determine in the parameter value.The function can also be with multiple
Interpolation method between support point determines that the supporting point is predefined by training data group.It can be defined for the function specific
Effective range.Such as function can only be defined as effectively in the following range, the parameter value of the range is not excessive partially
From in the parameter value of the gas or admixture of gas that are defined by training data group.If determining ginseng in the method according to the invention
Numerical value, which is located at, to be defined as except effective range in function, then can provide error signal.The error signal for example can be used for
By the particular measurement point in measurement data memory labeled as in vain, locally or via data network the letter about failure is being provided
Breath or similar information.
The function for example can be multinomial of the parameter value as variable of the two gas parameters, wherein according to instruction
Practice data group and predefines the polynomial coefficient.Each coefficient can for example determine by being fitted the multinomial, i.e., for example
By minimizing cost function, which mutually should be corresponding gas to by the predetermined result parameter of training data group is same
Or the deviation of the result parameter of admixture of gas calculating is related.
Such as the multinomial with 16 coefficients in total can be used, they are respectively allocated to the difference of the two gas parameters
The product of power.Such as coefficient can be predefined for all combinations of the different powers of gas parameter, wherein power is integer and refers to
Number is between 0 and 3.Using the approximate face of such polynomial computation training data group, which includes 370 kinds of days
The parameter value and calorific value of the gas parameter of right gas and nitrogen and air, wherein the calorific value of nitrogen and air is equal to zero.Herein
Through determination, when using thermal conductivity and temperature conductivity as gas parameter, the calorific value that is determined by the function by gas parameter value with
6.2% is at most differed for corresponding gas or the predetermined calorific value of admixture of gas by training data group.Only for three kinds of gas
Body mixture, error are more than 4%, and for 90% admixture of gas, error is less than 2%.Therefore it is determined by the function
Calorific value is consistent with actual calorific value with good precision.This is important, because even in flow measurement range can also with compared with
Few technology, which expends, determines the two gas parameters.
The parameter value of density and thermal capacity is assessed if replaced, can further improve precision.For above-mentioned training
Data group determines 2.4% worst error herein.Except a kind of gas mixing beyond the region of objective existence, error is less than 2%.For being more than 90% gas
Body mixture, or even determine the error less than 1%.
Training data group preferably can describe the two gas parameters and result at least one gas or admixture of gas
The parameter value of parameter, at least one gas or admixture of gas are not that heat release is flammable.Such gas may be assumed that
Calorific value is 0kWh/m3.Especially air can be thought of as to admixture of gas herein and/or nitrogen is thought of as gas.Air and
Nitrogen is dramatically different with most of natural gases in terms of its gas parameter assessed according to the method for the present invention.Therefore, exist
Also it may recognize that being especially largely mixed into air or nitrogen refers to calorific value or fertile pool into natural gas according to the method for the present invention
Several influences.
As above it as the discussion for the natural gas tested in face of 370 kinds is indicated, is also applied for according to the method for the present invention
Determine complicated, i.e. not only binary gas heat value of mixture or wobbe index.Therefore, in the method according to the invention, may be used
To determine the result parameter of the admixture of gas comprising at least three kinds gas with various.For example, admixture of gas may include methane, second
Alkane, propane, other hydrocarbon gas, hydrogen, air and/or nitrogen.
It is particularly preferred that determining the result parameter of the admixture of gas comprising hydrogen in the method according to the invention.It should
Therefore admixture of gas may include the gaseous hydrogen H2 being made of molecule.Calorific value to the admixture of gas comprising hydrogen or
The determination of wobbe index is very important.Hydrogen is a kind of to be especially susceptible to artificially generated gas.Such as turn gas technique in electricity
(Power-to-Gas-Prozess) in range, when device, such as wind by unevenly generating renewable energy in time
When power turbine or solar battery generate excess energy, hydrogen can be generated by electrolysis.These hydrogen can be fed into natural gas
In network.Since the combustion characteristics of hydrogen is dramatically different compared with common natural gas mixture, can produce herein dramatically different
Calorific value or dramatically different wobbe index.Therefore, if the hydrogen content of provided admixture of gas changes, thus it is advantageous
It is to detect calorific value or wobbe index, to be able to achieve charging based on energy consumption and/or to control gas according to wobbe index
The combustion process of mixture.
In the method according to the invention, it can detect the parameter value of thermal conductivity and temperature conductivity, wherein function is only joined with these
Numerical value is related.The parameter value of the two gas parameters can be detected particularly simply by sensor, and the sensor also can be used
It is determined in the heat of flow, so as to particularly simply realize flowmeter, which additionally determines calorific value or wobbe index.
In the method according to the invention, the two gas parameters are preferably detected under mutually synthermal and/or uniform pressure
Parameter value.This is able to achieve particularly simply parameter values for detection.
The parameter value can be detected by determining device by thermal measurement principle.Sensor, the sensor can be used herein
Including for the targetedly heating element of heat gas mixture and at least two, preferably at least three temperature sensors.
First temperature sensor it is settable on the heating element or be arranged in heating element area.Other temperature sensors can be with heating
Interelement is separated by a distance.If heating element is run in a manner of providing constant heating power, in heating element peripheral region
Temperature Distribution as middle generation, the shape of the Temperature Distribution and the gas parameter of admixture of gas are related.
Temperature in the level of the Temperature Distribution, the first temperature sensor being in particular arranged in heating element area
Level is the measurement of thermal conductivity herein.If admixture of gas has high thermal conductivity, amount of heat can be led from heating element
It walks, so that the temperature in heating element area is reduced with the increase of thermal conductivity.Temperature conductivity for example can be by more crossing the time
Measurement is to determine.Pulsed heating can be carried out by heating element.It is detectable from heating pulse until it is one or more with add
When accordingly continuing of the temperature maximum as caused by the heating pulse is detected on thermal element temperature sensor spaced apart
Between and can thereby determine that temperature conductivity.
If heating element be arranged in the flow channel of flowmeter and on the heating element trip and downstream use with add
Thermal element temperature sensor spaced apart then can addedly determine admixture of gas based on the asymmetry of Temperature Distribution
Flow velocity.
Other than according to the method for the present invention, the invention further relates to a kind of for determining the calorific value of description admixture of gas
And/or the determining device of the result parameter of wobbe index, the determining device are configured to implement according to the method for the present invention.Really
Flowmeter can be configured at this or be integrated in such flowmeter by determining device.In this case, it may be determined that admixture of gas
The volume flow for flowing through flowmeter and additionally determine calorific value and/or wobbe index.This can be used for, and pass through the flowmeter
To determine energy fluence, mode are as follows: calorific value is multiplied by volume flow.Energy consumption determining in this way and/or the volume measured and/
Or calorific value and/or wobbe index can be supplied to central means, which can for example be run by natural gas provider.Such as
Fruit uses flowmeter as determining device, then can as described above according to thermal measurement principle however also mechanically, for example pass through film
Formula aerometer meter detects volume.
Detailed description of the invention
Further advantage and details of the invention is obtained by following embodiment and affiliated attached drawing.Herein:
Fig. 1 shows a kind of flow chart of embodiment according to the method for the present invention；
Fig. 2 shows a kind of embodiments of detection device according to the present invention.
Specific embodiment
Fig. 1 shows a kind of method of the calorific value for determining admixture of gas and wobbe index in the energy for determining burner
Amount consumes and controls the use in the range of the burner.This method is divided into two parts.It is true in advance into S3 in step S1
Determine function, uses the function in the range of definitive result parameter in the next steps.Operation is formed in into S11 in step S4
The measurement and control loop used in the range of burner can execute step S1 at a certain moment before independently of this place
To S3.Such as these steps can have just been executed before manufacturing the determining device for definitive result parameter and then will
Obtained function is respectively stored in the storage device of determining device, to be used in subsequent step range by the determining device
These functions.
It is used in the function that step S1 is determined into S3, by the parameter value of lucky two gas parameters, in the example shown
By the parameter value of gas parameter thermal conductivity and temperature conductivity come computing heating value or wobbe index.Two institutes should be calculated in the present embodiment
Result parameter is stated, to predefine two different functions, the two different functions have with thermal conductivity and temperature conductivity respectively
It closes.In the alternate embodiment of this method, the function can in gas parameter temperature conductivity, thermal conductivity, thermal capacity and density
Any two gas parameter is related.
In step sl, a structure is predefined for these functions first.This can be proceed as follows: predefine first
Corresponding collection of functions, the collection of functions other than temperature conductivity and thermal conductivity also additionally with a number of other relating to parameters.Subsequent
Method during determine the other parameters, to predefine function.Corresponding collection of functions for example can be with the two gas
The parameter value of body parameter is determined in advance as the polynomial form of variable, wherein is determined as during subsequent method
The coefficient of other parameters.
Other parameters that is, for example polynomial coefficient is determined according to training data group, in step s 2 in advance
Determine the training data group.
Training data group is that multiple gases and/or admixture of gas describes to be directed to respectively two gas parameters that is, such as
The parameter value of temperature conductivity and thermal conductivity and result parameter that is, calorific value and/or wobbe index.Training data group may include needle
To these data more than 100 kinds, especially hundreds of gases and/or admixture of gas.It, should using following training data group
Training data group includes parameter value not only for hydrogen and for the flammable gas of air and nitrogen, i.e. two kind not heat release
And result parameter.In addition to this, the description of training data group is for multiple gases mixture, the i.e. master corresponding to available natural gas
Want the parameter value and result parameter of hydrocarbonaceous admixture of gas.Therefore, the function obtained can be parameterized so, so that the letter
Number can determine that the calorific value and wobbe index for natural gas, the natural gas can also be impregnated in the sky of higher amount with high precision
Gas, nitrogen and/or hydrogen.
In step s3, other ginsengs of predetermined collection of functions in step sl are determined according to training data group
The coefficient of number, i.e. such as corresponding polynomial.This can make by realizing Function Fitting to training data group, i.e. by calculating
For isostatic surface (Ausgleichsebene) Lai Shixian of function.Known a variety of methods thus, therefore corresponding mistake is only illustrated roughly
Journey.Can in training data group every kind of gas or admixture of gas define error amount, error amount explanation is by by function
What passed through with degree deviation in the special parameter of function applied to result parameter determined by the two gas parameters
The predetermined result parameter of training data group institute.Can be comprehensive at cost function by these error amounts, such as by calculating this
The Euclid norm of a little error amounts, and the cost function minimization can be made, to determine for training data group most
Good approximation faceCorresponding parametrization predefines function ready for use.
Then, identified function can be stored on the storage device of determining device, is made in subsequent method step
With the determining device.Corresponding detection device 1 is shown in FIG. 2.The detection device 1 is used for, it is first determined flows through detection device 1
Admixture of gas temperature conductivity and thermal conductivity.In addition, determining volume flow by detection device 1.
Detection device 1 includes the measurement section 2 in pipe 3.Center is equipped with heating element 4 in measurement section 2, can be through
The heating element is controlled by control device 5.Control device 5 can be configured to individual control device, but the control device can also collect
At into computing device 10.Control device 5 usually carries out the manipulation of heating element 4 in this way, so that the heating function of heating element 4
Rate is constant.When use substantially constant heating element 4 of resistance in relevant temperature range, can particularly simply realize corresponding
Detection device 1.In this case, control device 5 can provide constant voltage or electric current to heating element 4, to realize perseverance
Fixed heating power.However, it is also possible that control device 5 can be adjusted heating power to steady state value.
Other than heating element 4, three temperature sensors 6,7 and 8 are additionally provided in measurement section 2.Temperature sensor 7
It is arranged in 4 region of heating element.The two temperature sensors 6,8 are arranged in 4 upstream of heating element or downstream.Arrow 9 indicates
Gas flow direction.The measured value of temperature sensor 6,7 and 8 is recorded by computing device 10.As will be explained in greater detail further below
Like that, by these measured values, thermal conductivity is determined in step s 4, determines temperature conductivity in step s 5 and is determined in step s 6
The flow velocity of admixture of gas.
In step s 4, the thermal conductivity of admixture of gas is determined.It is transported herein using heating element 4 with constant heating power
Row.If the thermal conductivity for flowing through the gas in measurement section 2 is big, this means that guiding big energy from heating element.Therefore, such as
Fruit heating element is heated with identical heating power, then the temperature decline on heating element.Therefore the high temperature on temperature sensor 7
Corresponding to low heat conductivity, low temperature corresponds to high thermal conductivity.Therefore temperature value on temperature sensor 7 can be used for determining thermal conductivity.
The determination can be realized by using the value table with calibration value.It should be noted here that the temperature on temperature sensor 7 is obviously also attached
Add with flow through measurement the temperature of admixture of gas in section 2 it is related.Therefore, if the temperature in the admixture of gas of inflow can
Detection device 1 can be used in the air-flow of acute variation, then advantageously, flowing by another unshowned temperature sensor detection
The temperature of gas and the temperature of the inflow gas is taken in the determination of above-mentioned thermal conductivity, it is described another to be not shown
Temperature sensor compared with temperature sensor 6,8 obviously farther away from heating element 4.
In step s 5, temperature conductivity can be extracted by transition time measurement.Here, for example short thermal pulse is applied to
On heating element and measure until the temperature reaches the time of the two temperature sensors 6,8.It is advantageous that the two
Temperature sensor is spaced apart at a distance from different with heating element.If the temperature conductivity of gas is high, the temperature is than temperature conductivity
The two temperature sensors 6,8 are reached in the lower admixture of gas shorter time.The two differences for more crossing the time can be used for
Accurately determine temperature conductivity.In order to determine temperature conductivity by transition time or transit time difference or the parameter being derived there, can make
With the value table with calibration value.
Flow velocity is determined in step s 6.Admixture of gas causes temperature distribution history with stream by measuring the flowing in section 2
The increased asymmetry of speed.Therefore, flow velocity can be determined from the temperature difference on temperature sensor 6,8.
In the step s 7, will in step s3 provided by function be applied in step s 4 determined by thermal conductivity and
In step S5 on identified temperature conductivity, the function is related with temperature conductivity and thermal conductivity respectively and calculates separately calorific value and irrigates
Moor index.Therefore, after step s 7, not there is only the wobbe index of admixture of gas and there are the heat of the admixture of gas
Value.
It is further processed wobbe index, in step s 8 to control the burner for being supplied with admixture of gas.Here,
Such as the adjustable gas pressure for making admixture of gas enter combustion chamber, so that the variation to the admixture of gas supplied is done
It responds out.It can especially prevent from providing excessively high energy in burner when wobbe index rises as a result, this may be damaged
Burner.In addition, can fired according to wobbe index by control burner, especially by control gas pressure to reduce
The variation of variation, such as temperature change and/or provided mechanical energy during burning.
Identified calorific value in the step s 7 is used in the range of the energy fluence provided by calculating.For this purpose, in step S9
In first by admixture of gas in step s 6 determined by flow velocity calculate volume flow.The volume flow is then in step
It is multiplied in S10 with calorific value, to obtain provided energy fluence.In step s 11, pass through the not separately shown of determining device 1
Communication device the energy fluence of the determination is transferred to external device (ED), which can for example match with energy provider.With
Afterwards, repetition this method from detecting the flow velocity of parameter value and admixture of gas of the two gas parameters into S6 in step S4.
Reference signs list
1 detection device
2 measurement sections
3 pipes
4 heating elements
5 control devices
6 temperature sensors
7 temperature sensors
8 temperature sensors
9 arrows
10 computing devices
S1-S11 step
Claims (10)
1. a kind of method of the result parameter of calorific value and/or wobbe index for determining description admixture of gas, this method packet
Include following the step of being executed by determining device (1):
Determine being directed to selected from the parameter value of lucky two gas parameters of the following group for admixture of gas, which includes: thermally conductive
Rate, temperature conductivity, thermal capacity and density；
Calculate as predetermined function result result parameter, the function only with lucky two gas parameters
Parameter value is related.
2. being somebody's turn to do the method according to claim 1, wherein the function is predefined according to training data group
Training data group is that multiple gases and/or admixture of gas describe the parameter for being directed to the two gas parameters and result parameter respectively
Value.
3. according to the method described in claim 2, it is characterized in that, the function is the parameter value conduct of the two gas parameters
The multinomial of variable, wherein the polynomial coefficient is predefined according to training data group.
4. according to the method in claim 2 or 3, which is characterized in that the training data group is at least one gas or gas
Body mixture describes the parameter value of the two gas parameters and result parameter, and at least one gas or admixture of gas are not
Heat release is flammable.
5. method according to any of the preceding claims, which is characterized in that determine to include at least three kinds of gas with various
Admixture of gas result parameter.
6. method according to any of the preceding claims, which is characterized in that determine the admixture of gas comprising hydrogen
Result parameter.
7. method according to any of the preceding claims, which is characterized in that the parameter of detection thermal conductivity and temperature conductivity
Value, wherein function is only related with these parameter values.
8. method according to any of the preceding claims, which is characterized in that under mutually synthermal and/or uniform pressure
Detect the parameter value of the two gas parameters.
9. method according to any of the preceding claims, which is characterized in that the parameter value is led to by sensor device
Measuring principle is overheated to detect.
10. a kind of determining device of the result parameter of calorific value and/or wobbe index for determining description admixture of gas, special
Sign is that the determining device is configured to implement method according to any of the preceding claims.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016014151.4A DE102016014151A1 (en) | 2016-11-25 | 2016-11-25 | Method for determining a calorific value and / or a Wobbe index of a gas mixture |
| DE102016014151.4 | 2016-11-25 | ||
| PCT/EP2017/001347 WO2018095563A1 (en) | 2016-11-25 | 2017-11-16 | Method for determining the calorific value and/or wobbe-index of a gas mixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109964124A true CN109964124A (en) | 2019-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780070754.6A Pending CN109964124A (en) | 2016-11-25 | 2017-11-16 | Method for determining the calorific value and/or wobbe index of admixture of gas |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3545297A1 (en) |
| CN (1) | CN109964124A (en) |
| DE (1) | DE102016014151A1 (en) |
| WO (1) | WO2018095563A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114424062A (en) * | 2019-09-09 | 2022-04-29 | 高准有限公司 | System and method for real-time determination of fluid energy content |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210388985A1 (en) * | 2018-10-05 | 2021-12-16 | Sensirion Ag | Device for regulating a mixing ratio of a gas mixture |
| DE102019115973A1 (en) * | 2019-06-12 | 2020-12-17 | Westnetz Gmbh | MEASURING DEVICE FOR DETERMINING THE CALORIFIC VALUE OF A GAS FLOW IN A GAS LINE AND GAS DISTRIBUTION NETWORK WITH SUCH A MEASURING DEVICE |
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| DE69014308T2 (en) * | 1989-10-30 | 1995-04-13 | Honeywell Inc | COMBUSTION CONTROL WITH MICROMEASURING BRIDGE. |
| EP2015056A1 (en) * | 2007-07-07 | 2009-01-14 | Mems Ag | Method and sensor for determining a significant value in combustibility terms of a gas mixture |
| CN104181074A (en) * | 2013-05-24 | 2014-12-03 | Mems股份公司 | Method and measuring apparatus for determining physical properties of gas |
| CN104236652A (en) * | 2013-06-20 | 2014-12-24 | 液体比重计有限公司 | Method for determining at least one gas parameter of a flowing gas |
| CN105606786A (en) * | 2014-11-14 | 2016-05-25 | Mems股份公司 | Method and measuring apparatus for determining specific quantities for gas quality |
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| ES2161696T3 (en) * | 1991-10-23 | 2001-12-16 | Honeywell Inc | APPARATUS FOR MEASURING, WITHOUT COMBUSTION, THE QUALITY OF A FUEL GAS. |
| DE10122039B4 (en) * | 2001-05-07 | 2010-10-07 | E.On Ruhrgas Ag | Method and device for determining the calorific value of a gas |
| EP2848934B1 (en) * | 2013-09-13 | 2022-08-31 | Mems Ag | Method and sensor for determining fuel characteristics of gas mixtures |
-
2016
- 2016-11-25 DE DE102016014151.4A patent/DE102016014151A1/en not_active Ceased
-
2017
- 2017-11-16 CN CN201780070754.6A patent/CN109964124A/en active Pending
- 2017-11-16 EP EP17808769.8A patent/EP3545297A1/en active Pending
- 2017-11-16 WO PCT/EP2017/001347 patent/WO2018095563A1/en unknown
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69014308T2 (en) * | 1989-10-30 | 1995-04-13 | Honeywell Inc | COMBUSTION CONTROL WITH MICROMEASURING BRIDGE. |
| EP2015056A1 (en) * | 2007-07-07 | 2009-01-14 | Mems Ag | Method and sensor for determining a significant value in combustibility terms of a gas mixture |
| CN104181074A (en) * | 2013-05-24 | 2014-12-03 | Mems股份公司 | Method and measuring apparatus for determining physical properties of gas |
| CN104236652A (en) * | 2013-06-20 | 2014-12-24 | 液体比重计有限公司 | Method for determining at least one gas parameter of a flowing gas |
| CN105606786A (en) * | 2014-11-14 | 2016-05-25 | Mems股份公司 | Method and measuring apparatus for determining specific quantities for gas quality |
| CN105807027A (en) * | 2016-03-16 | 2016-07-27 | 新奥科技发展有限公司 | Gas energy metering method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114424062A (en) * | 2019-09-09 | 2022-04-29 | 高准有限公司 | System and method for real-time determination of fluid energy content |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102016014151A1 (en) | 2018-05-30 |
| EP3545297A1 (en) | 2019-10-02 |
| WO2018095563A1 (en) | 2018-05-31 |
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