DE10122039B4 - Method and device for determining the calorific value of a gas - Google Patents
Method and device for determining the calorific value of a gas Download PDFInfo
- Publication number
- DE10122039B4 DE10122039B4 DE2001122039 DE10122039A DE10122039B4 DE 10122039 B4 DE10122039 B4 DE 10122039B4 DE 2001122039 DE2001122039 DE 2001122039 DE 10122039 A DE10122039 A DE 10122039A DE 10122039 B4 DE10122039 B4 DE 10122039B4
- Authority
- DE
- Germany
- Prior art keywords
- gas
- measuring
- temperature
- calorific value
- flow
- 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.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000007789 gas Substances 0.000 claims abstract description 47
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000003345 natural gas Substances 0.000 claims abstract description 10
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 238000002485 combustion reaction Methods 0.000 claims abstract description 5
- 239000000523 sample Substances 0.000 claims description 13
- 238000011156 evaluation Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 description 7
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Food Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
Verfahren zum Bestimmen des Brennwertes eines Gases, insbesondere zum verbrennungslosen Bestimmen des Brennwertes von Erdgas, wobei
– ein Strom des Gases durch eine Messleitng geführt wird,
– der Volumenstrom des Gasstroms konstant gehalten wird,
– das Gas in der Messleitung stromab einer ersten und stromauf einer zweiten Temperaturmessstelle beheizt wird,
– die Heizleistung konstant gehalten wird,
– die sich aus den Messwerten der beiden Temperaturmessstellen ergebende Temperaturdifferenz erfasst wird,
– die erfasste Temperaturdifferenz in ein Messsignal MS umgewandelt wird und
– der Brennwert H0 aus der Formel H0 = ± A·MS ± B bestimmt wird, wobei A und B experimentell ermittelte Konstanten oder von diesen abgeleitete Konstanten sind.Method for determining the calorific value of a gas, in particular for determining the calorific value of natural gas without combustion, wherein
A stream of gas is passed through a measuring conduit,
The volume flow of the gas stream is kept constant,
The gas in the measuring line is heated downstream of a first and upstream of a second temperature measuring point,
- the heating power is kept constant,
The temperature difference resulting from the measured values of the two temperature measuring points is detected,
- The detected temperature difference is converted into a measuring signal MS and
The calorific value H 0 is determined from the formula H 0 = ± A * MS ± B, where A and B are experimentally determined constants or constants derived therefrom.
Description
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Bestimmen des Brennwertes eines Gases, insbesondere zum verbrennungslosen Bestimmen des Brennwertes von Erdgas.The The invention relates to a method and a device for determining the calorific value of a gas, in particular for the non-combustible Determining the calorific value of natural gas.
Aus
der
Ferner
ist aus der
Der Erfindung liegt die Aufgabe zugrunde, ein zuverlässiges und dabei sehr einfaches Verfahren sowie eine zugehörige Vorrichtung der vorstehend genannten Art zu schaffen.Of the Invention is based on the object, a reliable and very simple Method and an associated To provide device of the aforementioned type.
Die Erfindung löst diese Aufgabe mit dem eingangs genannten Verfahren dadurch, dass
- – ein Strom des Gases durch eine Messleitung geführt wird,
- – der Volumenstrom des Gases konstant gehalten wird,
- – das Gas in der Messleitung stromab einer ersten und stromauf einer zweiten Temperaturmessstelle beheizt wird,
- – die Heizleistung konstant gehalten wird,
- – die sich aus den Messwerten der beiden Temperaturmessstellen ergebende Temperaturdifferenz erfasst wird,
- – die Temperaturdifferenz in ein Messsignal MS umgewandelt wird und
- – der Brennwert H0 der Formel H0 = ± A·MS ± B bestimmt wird, wobei A und B experimentell ermittelte Konstanten oder aus diesen abgeleitete Konstanten sind.
- A stream of the gas is passed through a measuring line,
- The volume flow of the gas is kept constant,
- The gas in the measuring line is heated downstream of a first and upstream of a second temperature measuring point,
- - the heating power is kept constant,
- The temperature difference resulting from the measured values of the two temperature measuring points is detected,
- - The temperature difference is converted into a measuring signal MS and
- - the calorific value H 0 of the formula H 0 = ± A · MS ± B is determined, where A and B are experimentally determined constants or constants derived therefrom.
Hauptanwendungsgebiet der Erfindung ist die Verbrennungstechnik, und zwar vor allen Dingen unter Einsatz von Erdgas. Unter dem Gesichtspunkt sparsamer und umweltschonender Energienutzung wird es zunehmend wichtiger, die Verbrennungseinrichtungen mit sehr exakter Einstellung des Luft/Brennstoff-Verhältnisses zu betreiben. Verwiesen sei zum Beispiel auf die Beheizung von Glaswannen, die Erzeugung von Schutzgas, den Betrieb von BHKW-Anlagen sowie den Einsatz einer Flamme als Werkzeug. Das Luft/Brennstoff-Verhältnis soll konstant bleiben, auch wenn sich die Eigenschaften des Brenngases ändern.Main application The invention is the combustion technique, and especially under Use of natural gas. From the perspective of more economical and environmentally friendly Energy use, it is increasingly important, the combustion equipment with very precise adjustment of the air / fuel ratio to operate. Reference is made, for example, to the heating of glass tubs, the production of inert gas, the operation of CHP plants and the Use of a flame as a tool. The air / fuel ratio should remain constant, even if the properties of the fuel gas change.
Die moderne Erdgasversorgung arbeitet mit einem Netz, das über eine Vielzahl von Einspeisestellen verfügt. An den einzelnen Einspeisestellen können Erdgase unterschiedlicher Beschaffenheit in das Netz eingeleitet werden. Der Verbraucher muss also in der Lage sein, Klarheit über die aktuelle Gasbeschaffenheit zu gewinnen. Schließlich hängt hiervon der für die Einstellung der Luftzahl benötigte Sauerstoffbedarf ab.The modern natural gas supply works with a network that has one Variety of feed points features. At the individual feed-in points, natural gases can be produced different nature are introduced into the network. The consumer must therefore be able to clarify the gain current gas quality. After all, this depends on the attitude The air ratio required oxygen demand from.
Die Erfindung schafft eine zuverlässige und dabei sehr einfache und dementsprechend kostengünstige Möglichkeit zur Erfassung der Gasbeschaffenheit, die darüber hinaus ansprechempfindlich ist und kontinuierlich durchgeführt werden kann.The Invention provides a reliable and thereby very simple and therefore cost-effective way to record the gas quality, which is also responsive is and continuously performed can be.
Die Temperaturdifferenz zwischen den beiden Temperaturmessstellen ist bei konstanter Heizleistung proportional zum Massefluss des Gases und dessen spezifischer Wärme. Hält man den Volumenstrom konstant, so ändert sich die Temperaturdifferenz in Abhängigkeit von Änderungen der spezifischen Wärme, wobei die Änderungen repräsentativ sind für Unterschiede in der Gasbeschaffenheit.The Temperature difference between the two temperature measuring points is at constant heating power proportional to the mass flow of the gas and its specific heat. One stops the volume flow constant, so changes the temperature difference depends on changes the specific heat, the changes are representative for differences in the gas texture.
Mit dem aus der Temperaturdifferenz abgeleiteten Messsignal MS lässt sich der Brennwert H0 des Gases nach einer sehr einfachen Beziehung ermitteln, nämlich nach der Formel H0 = A·MS – B. Wertepaare für die beiden Konstanten können experimentell ohne weiteres festgelegt werden.With the measurement signal MS derived from the temperature difference, the calorific value H 0 of the gas can be determined according to a very simple relationship, namely according to the formula H 0 = A * MS-B. Value pairs for the two constants can be established experimentally without further ado.
Bei einem bevorzugten, für Erdgas geltenden Wertepaar beträgt A = 0,4902 und B = 6,8763.at a preferred, for Natural gas valid value pair amounts A = 0.4902 and B = 6.8763.
In Weiterbildung der Erfindung wird vorgeschlagen, zur Bestimmung des Wobbe-Index und der Methanzahl für Erdgas die Konstanten A und B als gasartspezifische Konstanten aus dem Brennwert abzuleiten, wobei hierfür vorzugsweise die Regressionsgleichung zur Anwendung kommt.In Further development of the invention is proposed for determining the Wobbe index and methane number for Natural gas constants A and B as gas-specific constants derive the calorific value, for which purpose preferably the regression equation is used.
So beträgt der Wobbe-Index für L-Gas Wo = 0,6334·MS – 9,3501 und für H-Gas Wo = 0,1926·MS + 7,4439. Die Methanzahl für L-Gas beträgt MZ = –9,485·MS + 421,91 und für H- Gas MZ = –6,0157·MS + 304,45.So is the Wobbe index for L-gas Wo = 0.6334 · MS - 9.3501 and for H gas Wo = 0.1926 · MS + 7.4439. The methane number for L gas is MZ = -9.485 * MS + 421.91 and for H gas MZ = -6.0157 * MS + 304.45.
Das Messsignal wird vorzugsweise als Ausgangssignal einer die Temperaturdifferenz erfassenden Brückenschaltung gebildet und in einem Mikroprozessor verarbeitet.The Measuring signal is preferably as an output of a temperature difference detecting bridge circuit formed and processed in a microprocessor.
Zur weiteren Erhöhung der Genauigkeit wird vorgeschlagen, die Schwankungen der Temperatur des durch die Messleitung geführten Gasstroms zu kompensieren, um den Massefluss über die Konstanthaltung des Volumenstroms exakt konstant zu halten. Auch ist es vorteilhaft, das Messsignal über ein Zeitfilter als Mittelwert zu bilden.to further increase the accuracy is suggested, the fluctuations in the temperature of the guided by the measuring line Gas flow to compensate for the mass flow on the constant maintenance of the Volume flow to keep exactly constant. It is also advantageous the measuring signal over to form a time filter as an average.
Eine besonders vorteilhafte Nutzbarmachung der Erfindung kennzeichnet sich dadurch, dass das Messsignal zum Steuern eines gasverbrauchenden Prozesses, insbesondere eines Verbrennungsprozesses verwendet wird.A particularly advantageous utilization of the invention features characterized in that the measuring signal for controlling a gas-consuming Process, in particular a combustion process is used.
In Weiterbildung der Erfindung wird ferner vorgeschlagen, dass der durch die Messleitung geführte Gasstrom stromauf eines Strömungswiderstandes aus einer Durchflussleitung entnommen und stromab des Strömungswiderstandes in die Durchflussleitung zurückgeführt wird. Die erforderliche Betriebsenergie wird also aus dem in der Durchflussleitung erzeugten Druckgefälle abgegriffen.In Further development of the invention is also proposed that the guided by the measuring line Gas flow upstream of a flow resistance taken from a flow line and downstream of the flow resistance is returned to the flow line. The required operating energy is thus from the in the flow line generated pressure gradient tapped.
Dabei kann das Messsignal zum Steuern eines in der Durchflussleitung vorzugsweise stromab des Strömungswiderstandes angeordneten Durchflussreglers verwendet werden. Dies dient zur direkten Steuerung eines der Messstelle nachgeschalteten Prozesses.there For example, the measurement signal may be for controlling one in the flow line downstream of the flow resistance arranged flow regulator can be used. This serves for direct control of a process downstream of the measuring point.
Die Erfindung richtet sich ferner auf eine Vorrichtung zum Durchführen des erfindungsgemäßen Verfahrens, mit
- – einer Messleitung für einen Strom des Gases,
- – einer der Messleitung zugeordneten Heizung,
- – einer stromauf der Heizung angeordneten ersten Temperatursonde,
- – einer stromab der Heizung angeordneten zweiten Temperatursonde,
- – einem stromauf der ersten Temperatursonde angeordneten Druckregler und
- – einer Einrichtung zum Auswerten der von den Temperatursonden gelieferten Messwerte, die die sich aus den Messwerten ergebende Temperaturdifferenz erfasst und in ein Messsignal MS umwandelt und den H0 aus der Formel H0 = ± A·MS ± B bestimmt, wobei A und B experimentell ermittelte Konstanten oder von diesen abgeleitete Konstanten sind.
- A measuring line for a flow of the gas,
- - one of the measuring line associated heating,
- A first temperature probe arranged upstream of the heater,
- A second temperature probe arranged downstream of the heater,
- - An upstream of the first temperature probe arranged pressure regulator and
- A device for evaluating the measured values supplied by the temperature probes, which detects the temperature difference resulting from the measured values and converts them into a measuring signal MS and determines the H 0 from the formula H 0 = ± A * MS ± B, where A and B are experimental are determined constants or constants derived from them.
Vorteilhafte Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen.advantageous Further developments of the invention will become apparent from the dependent claims.
Die Erfindung wird im folgenden anhand eines bevorzugten Ausführungsbeispiels im Zusammenhang mit der beiliegenden Zeichnung näher erläutert. Die Zeichnung zeigt in:The Invention will be described below with reference to a preferred embodiment explained in more detail in connection with the accompanying drawings. The drawing shows in:
Das
in
Die
Messleitung
Aus dem Messsignal MS lässt sich unter Einsatz experimentell ermittelter Konstanten der Brennwert des Gases ermitteln. Aus dem Brennwert wiederum lassen sich der Wobbe-Index und die Methanzahl ableiten, und zwar wiederum bezogen auf das Messsignal.Out the measurement signal MS leaves using experimentally determined constants of the calorific value of the gas. From the fuel value in turn can be the Derived Wobbe index and the methane number, again in relation on the measurement signal.
Das
Messsignal MS wird vom Messgerät
Ein
weiterer A/D-Wandler
Ein
weiterer Ausgang des Mikroprozessors
Im Rahmen der Erfindung sind durchaus Abwandlungsmöglichkeiten gegeben. So kann das Messsignal MS direkt an eine Steuereinrichtung angelegt werden, um eine gasbeschaffenheitsabhängige Prozesssteuerung zu bewirken.In the context of the invention are quite Ab given opportunities for change. Thus, the measurement signal MS can be applied directly to a control device in order to effect a gas-condition-dependent process control.
Claims (14)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2001122039 DE10122039B4 (en) | 2001-05-07 | 2001-05-07 | Method and device for determining the calorific value of a gas |
PCT/EP2002/004830 WO2002090920A2 (en) | 2001-05-07 | 2002-05-02 | Method and device for determining a characteristic value that is representative of the condition of a gas |
EP02769134A EP1386151A2 (en) | 2001-05-07 | 2002-05-02 | Method and device for determining a characteristic value that is representative of the condition of a gas |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2001122039 DE10122039B4 (en) | 2001-05-07 | 2001-05-07 | Method and device for determining the calorific value of a gas |
Publications (2)
Publication Number | Publication Date |
---|---|
DE10122039A1 DE10122039A1 (en) | 2002-11-14 |
DE10122039B4 true DE10122039B4 (en) | 2010-10-07 |
Family
ID=7683846
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2001122039 Expired - Fee Related DE10122039B4 (en) | 2001-05-07 | 2001-05-07 | Method and device for determining the calorific value of a gas |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1386151A2 (en) |
DE (1) | DE10122039B4 (en) |
WO (1) | WO2002090920A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10942139B2 (en) | 2017-06-30 | 2021-03-09 | Sensirion Ag | Operation method for flow sensor device |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1411355A1 (en) * | 2002-10-18 | 2004-04-21 | Emerson Electric Co. | Method and device for determining a characteristic value that is representative of the condition of a gas |
DE102005019759B4 (en) * | 2005-04-28 | 2007-01-11 | Dräger Safety AG & Co. KGaA | Gas measuring device with an electrochemical gas sensor |
EP1964656A3 (en) | 2007-03-01 | 2011-03-30 | Maschinenbau Gerold Gmbh + Co. Kg | Method and device for feeding a paste-like material into a honeycomb |
EP2015056B1 (en) | 2007-07-07 | 2010-04-07 | Mems Ag | Method and sensor for determining a significant value in combustibility terms of a gas mixture |
WO2015075278A1 (en) | 2015-03-05 | 2015-05-28 | Sensirion Ag | Determination of fluid parameters |
EP3153854B1 (en) | 2015-10-05 | 2021-03-31 | Sensirion AG | Determination of volumetric flow rate of a gas in a gas flow |
DE102016014151A1 (en) * | 2016-11-25 | 2018-05-30 | Diehl Metering Gmbh | Method for determining a calorific value and / or a Wobbe index of a gas mixture |
EP3502687B1 (en) | 2017-12-20 | 2022-06-29 | Sensirion AG | Determination of gas parameters |
EP3812753B1 (en) | 2019-10-24 | 2023-11-29 | Sensirion AG | Determination of gas-specific parameters from heat transfer in the temperature jump regime |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4246773A (en) * | 1978-03-31 | 1981-01-27 | Osaka Gas Company Ltd. | Combustion property of gas measuring apparatus |
DE4118781A1 (en) * | 1991-06-07 | 1992-12-10 | Rmg Messtechnik Gmbh | Measuring Wobbe index and calorific value of flowing gas - determining vol. and mass flow and other parameters and holding further parameter, e.g. pressure drop across flow resistance, constant and using approximation function |
EP0554095A2 (en) * | 1992-01-30 | 1993-08-04 | Honeywell Inc. | Determination of fuel characteristics |
EP0715169A1 (en) * | 1994-12-02 | 1996-06-05 | British Gas plc | Measurement of a gas characteristic |
DE19707659A1 (en) * | 1997-02-26 | 1998-08-27 | Betr Forsch Inst Angew Forsch | Acoustic measuring method for mean gas density |
DE69316643T2 (en) * | 1992-10-23 | 1998-08-27 | Gastec Nv | METHOD FOR DETERMINING THE BURN VALUE OF A GAS AND / OR THE WOB NUMBER OF A NATURAL GAS |
DE19949439C1 (en) * | 1999-10-14 | 2001-02-08 | Flow Comp Systemtechnik Gmbh | Process for determining the gas quality of sample gas e.g. fuel gas using spectroscopic process comprises determining the pressure and temperature of sample gas, forming spectral vector and multiplying spectral vector with factor vector |
DE10023635A1 (en) * | 2000-05-13 | 2001-11-15 | Ruhrgas Ag | Method and device for the combustion-free determination of the calorific value or the Wobbe number of a natural gas |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2928739C2 (en) * | 1979-07-17 | 1981-03-19 | Ruhrgas Ag, 4300 Essen | Method and device for combustion-free measurement and / or control of the amount of heat supplied to gas consumption devices |
SE445677B (en) * | 1984-11-19 | 1986-07-07 | Alfa Laval Food & Dairy Eng | PROCEDURE FOR SATURING THE CONTENT OF CRYSTALS IN A MIXTURE OF LIQUID AND CRYSTALS AND A DEVICE FOR IMPLEMENTATION OF THE PROCEDURE |
JPH0781918B2 (en) * | 1990-08-02 | 1995-09-06 | 東京瓦斯株式会社 | Calorimeter |
WO1993008457A1 (en) * | 1991-10-23 | 1993-04-29 | Niagara Mohawk Power Corporation | On-line combustionless measurement of gaseous fuels fed to gas consumption devices |
DE19908885A1 (en) * | 1999-03-02 | 2000-09-07 | Fev Motorentech Gmbh | Method for operating gas burner by heating gas in separated measurement chamber and using relationship between and pressure or temperature to measure gas composition |
-
2001
- 2001-05-07 DE DE2001122039 patent/DE10122039B4/en not_active Expired - Fee Related
-
2002
- 2002-05-02 EP EP02769134A patent/EP1386151A2/en not_active Ceased
- 2002-05-02 WO PCT/EP2002/004830 patent/WO2002090920A2/en not_active Application Discontinuation
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4246773A (en) * | 1978-03-31 | 1981-01-27 | Osaka Gas Company Ltd. | Combustion property of gas measuring apparatus |
DE4118781A1 (en) * | 1991-06-07 | 1992-12-10 | Rmg Messtechnik Gmbh | Measuring Wobbe index and calorific value of flowing gas - determining vol. and mass flow and other parameters and holding further parameter, e.g. pressure drop across flow resistance, constant and using approximation function |
EP0554095A2 (en) * | 1992-01-30 | 1993-08-04 | Honeywell Inc. | Determination of fuel characteristics |
DE69316643T2 (en) * | 1992-10-23 | 1998-08-27 | Gastec Nv | METHOD FOR DETERMINING THE BURN VALUE OF A GAS AND / OR THE WOB NUMBER OF A NATURAL GAS |
EP0715169A1 (en) * | 1994-12-02 | 1996-06-05 | British Gas plc | Measurement of a gas characteristic |
DE19707659A1 (en) * | 1997-02-26 | 1998-08-27 | Betr Forsch Inst Angew Forsch | Acoustic measuring method for mean gas density |
DE19949439C1 (en) * | 1999-10-14 | 2001-02-08 | Flow Comp Systemtechnik Gmbh | Process for determining the gas quality of sample gas e.g. fuel gas using spectroscopic process comprises determining the pressure and temperature of sample gas, forming spectral vector and multiplying spectral vector with factor vector |
DE10023635A1 (en) * | 2000-05-13 | 2001-11-15 | Ruhrgas Ag | Method and device for the combustion-free determination of the calorific value or the Wobbe number of a natural gas |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10942139B2 (en) | 2017-06-30 | 2021-03-09 | Sensirion Ag | Operation method for flow sensor device |
Also Published As
Publication number | Publication date |
---|---|
DE10122039A1 (en) | 2002-11-14 |
WO2002090920A2 (en) | 2002-11-14 |
WO2002090920A3 (en) | 2003-02-27 |
EP1386151A2 (en) | 2004-02-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2928739C2 (en) | Method and device for combustion-free measurement and / or control of the amount of heat supplied to gas consumption devices | |
DE10122039B4 (en) | Method and device for determining the calorific value of a gas | |
EP1744102B1 (en) | Gas burner | |
EP3273237B1 (en) | Method and measuring device for determining physical gas properties | |
EP2466202B1 (en) | Method for regulating a gas/air mixture | |
DE60202855T2 (en) | PRESSURE STEAM GENERATOR AND ITS CONTROL | |
EP1426740A2 (en) | Device for measuring the flow and at least one material parameter of a fluid | |
WO2006000367A1 (en) | Method for adjusting the excess air coefficient on a firing apparatus, and firing apparatus | |
EP1002999A2 (en) | Control of the burner heating power with a gas fuelled range or stove | |
DE3707258C2 (en) | Burner device | |
DE69722544T2 (en) | Method of instantly identifying a gas or liquid flow | |
DE10001251B4 (en) | Method for controlling or regulating a gas burner | |
DE10219251B3 (en) | heater | |
EP0733859A2 (en) | Method and device for controlling a heating apparatus | |
EP4063732B1 (en) | Method and assembly for observing flames in a heater operable with hydrogen or hydrogen-containing fuel gas | |
DE102004055715C5 (en) | Method for setting operating parameters on a firing device and firing device | |
WO2020030323A1 (en) | Method for controlling a mixing ratio of fuel gas and air for a heating appliance | |
EP0815387B1 (en) | Method and device for monitoring the feed-water supply to a steamgenerator | |
DE202010018511U1 (en) | Pneumatic compound with mass balance | |
EP3869099A1 (en) | Method, device, and computer program product for regulating a fuel-air mixture in a heating device | |
DE10348324B3 (en) | Modulation process for heating load of burner involves preparing measuring lines, measuring volume and mass flow of gas and air and producing required gas mixture | |
EP1432655B1 (en) | Fuel cell system with a mass flow sensor | |
DE2742737C2 (en) | Clogging meter for automatically measuring the density or concentration of the impurities contained in a liquid metal | |
DE19908885A1 (en) | Method for operating gas burner by heating gas in separated measurement chamber and using relationship between and pressure or temperature to measure gas composition | |
DE3006683A1 (en) | Gas burner control with temp. variation compensator - has pressure at burner fed into airflow-actuated gas flow regulator control line |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8127 | New person/name/address of the applicant |
Owner name: E.ON RUHRGAS AG, 45138 ESSEN, DE |
|
8110 | Request for examination paragraph 44 | ||
8364 | No opposition during term of opposition | ||
R082 | Change of representative |
Representative=s name: ZENZ PATENT- UND RECHTSANWAELTE, DE |
|
R081 | Change of applicant/patentee |
Owner name: E.ON NEW BUILD & TECHNOLOGY GMBH, DE Free format text: FORMER OWNER: E.ON RUHRGAS AG, 45131 ESSEN, DE Effective date: 20130215 Owner name: E.ON METERING GMBH, DE Free format text: FORMER OWNER: E.ON RUHRGAS AG, 45131 ESSEN, DE Effective date: 20130215 |
|
R082 | Change of representative |
Representative=s name: ZENZ PATENT- UND RECHTSANWAELTE, DE Effective date: 20130215 Representative=s name: ZENZ PATENTANWAELTE PARTNERSCHAFT MBB, DE Effective date: 20130215 Representative=s name: GLAWE DELFS MOLL PARTNERSCHAFT MBB VON PATENT-, DE Effective date: 20130215 |
|
R084 | Declaration of willingness to licence | ||
R081 | Change of applicant/patentee |
Owner name: E.ON METERING GMBH, DE Free format text: FORMER OWNER: E.ON NEW BUILD & TECHNOLOGY GMBH, 45896 GELSENKIRCHEN, DE |
|
R082 | Change of representative |
Representative=s name: GLAWE DELFS MOLL PARTNERSCHAFT MBB VON PATENT-, DE |
|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |