EP4587796A1 - Verfahren zur messung der durchflussmenge eines gaskessels - Google Patents

Verfahren zur messung der durchflussmenge eines gaskessels

Info

Publication number
EP4587796A1
EP4587796A1 EP23771841.6A EP23771841A EP4587796A1 EP 4587796 A1 EP4587796 A1 EP 4587796A1 EP 23771841 A EP23771841 A EP 23771841A EP 4587796 A1 EP4587796 A1 EP 4587796A1
Authority
EP
European Patent Office
Prior art keywords
temperature
point
signal
fluid
flow rate
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.)
Pending
Application number
EP23771841.6A
Other languages
English (en)
French (fr)
Inventor
Mathijs van de Weerd
Gijsbert Conneman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BDR Thermea Group BV
Original Assignee
BDR Thermea Group BV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BDR Thermea Group BV filed Critical BDR Thermea Group BV
Publication of EP4587796A1 publication Critical patent/EP4587796A1/de
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/704—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow using marked regions or existing inhomogeneities within the fluid stream, e.g. statistically occurring variations in a fluid parameter
    • G01F1/7044—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow using marked regions or existing inhomogeneities within the fluid stream, e.g. statistically occurring variations in a fluid parameter using thermal tracers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/704—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow using marked regions or existing inhomogeneities within the fluid stream, e.g. statistically occurring variations in a fluid parameter
    • G01F1/708—Measuring the time taken to traverse a fixed distance
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/704—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow using marked regions or existing inhomogeneities within the fluid stream, e.g. statistically occurring variations in a fluid parameter
    • G01F1/708—Measuring the time taken to traverse a fixed distance
    • G01F1/7084—Measuring the time taken to traverse a fixed distance using thermal detecting arrangements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/704—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow using marked regions or existing inhomogeneities within the fluid stream, e.g. statistically occurring variations in a fluid parameter
    • G01F1/708—Measuring the time taken to traverse a fixed distance
    • G01F1/712—Measuring the time taken to traverse a fixed distance using auto-correlation or cross-correlation detection means

Definitions

  • the method therefore comprises maintaining the variation of the power input below a predetermined threshold value when determining a first temperature fluctuation at the first point and a second temperature fluctuation at the second point.
  • the second temperature sensor will read the power fluctuations in addition to the ‘natural’ temperature fluctuations from the CH-system. This would make it virtually impossible to determine the flow rate.
  • the method can comprise initiating the method for measuring the fluid flow rate in a remote manner.
  • the method can comprise collecting data of the combustion appliance related to the fluid flow rate by a logging device connected to a cloud network, wherein in particular the logging device is a connected gateway or a thermostat having a network connection, in particular an Internet connection (WiFi, LoRa, GPRS, etc).
  • a cloud based analysis can then determine the flow rate.
  • the method can comprise generating and sending a feedback information to an end user reporting the measured fluid flow rate, and/or generating and sending a feedback information to an end user in case the measured fluid flow rate outside a reference flow rate range.
  • end-user feedback can be generated in case of a worrisome flow rates. For example, end-users that have a boiler with a logging device can be informed, by the installer, or the boiler itself in case of an erroneous situation.
  • Possible feedback scenarios are web interface, portal for installers (Dashboard), installer app on phone when connecting a service tool, user app on phone when connection a capable room thermostat, email notifications, push notifications on connected phone, and/or boiler HMI.
  • a computer program product comprises instructions which, when the program is executed by a computer or control unit, cause the computer or the control unit to carry out the inventive method.
  • the computer program product comprises instruction that cause the system and/or combustion appliance discussed below to carry out the inventive method.
  • the appliance including the present system can be a gas boiler for the combustion of hydrogen gas.
  • a fuel gas that comprises at least 20% hydrogen or natural gas or mixtures thereof.
  • the required signal length depends on the variability of the temperature signals.
  • the signals must show large enough fluctuations to lead to a distinctive peak in the crosscorrelation graph. If both signals are flat lines, the cross-correlation won’t result in a reliable delay determination. It is better if both signals show large fluctuations so that the cross-correlation will show a very large peak when the signals are shifted by ‘At’.
  • the length of the signals if the expected fluctuations are much shorter than t max , a signal with a length of t max will suffice. If the expected fluctuations are longer than t max , the signals must be cut into sections with the length of the fluctuations.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
EP23771841.6A 2022-09-15 2023-09-14 Verfahren zur messung der durchflussmenge eines gaskessels Pending EP4587796A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP22195755.8A EP4339562A1 (de) 2022-09-15 2022-09-15 Verfahren zur messung der durchflussmenge eines gaskessels
PCT/EP2023/075251 WO2024056783A1 (en) 2022-09-15 2023-09-14 Flow rate measuring method for a gas boiler

Publications (1)

Publication Number Publication Date
EP4587796A1 true EP4587796A1 (de) 2025-07-23

Family

ID=83355252

Family Applications (2)

Application Number Title Priority Date Filing Date
EP22195755.8A Withdrawn EP4339562A1 (de) 2022-09-15 2022-09-15 Verfahren zur messung der durchflussmenge eines gaskessels
EP23771841.6A Pending EP4587796A1 (de) 2022-09-15 2023-09-14 Verfahren zur messung der durchflussmenge eines gaskessels

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP22195755.8A Withdrawn EP4339562A1 (de) 2022-09-15 2022-09-15 Verfahren zur messung der durchflussmenge eines gaskessels

Country Status (2)

Country Link
EP (2) EP4339562A1 (de)
WO (1) WO2024056783A1 (de)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0773432A3 (de) * 1995-11-13 1998-03-11 The Boc Group, Inc. Verfahren und Vorrichtung zur Durchflussmessung
US7261002B1 (en) * 1999-07-02 2007-08-28 Cidra Corporation Flow rate measurement for industrial sensing applications using unsteady pressures
FR2914740B1 (fr) * 2007-04-06 2009-07-17 Peugeot Citroen Automobiles Sa Procede de determination du debit volumique d'un fluide circulant dans une canalisation et dispositif associe
JP2009168688A (ja) * 2008-01-17 2009-07-30 Mitsubishi Heavy Ind Ltd 流体計測装置
US10041844B1 (en) * 2017-04-07 2018-08-07 International Business Machines Corporation Fluid flow rate assessment by a non-intrusive sensor in a fluid transfer pump system

Also Published As

Publication number Publication date
EP4339562A1 (de) 2024-03-20
WO2024056783A1 (en) 2024-03-21

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