EP3101366A2 - Schätzverfahren einer physikalischen grösse eines boiler-wasserspeichers - Google Patents

Schätzverfahren einer physikalischen grösse eines boiler-wasserspeichers Download PDF

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Publication number
EP3101366A2
EP3101366A2 EP16171629.5A EP16171629A EP3101366A2 EP 3101366 A2 EP3101366 A2 EP 3101366A2 EP 16171629 A EP16171629 A EP 16171629A EP 3101366 A2 EP3101366 A2 EP 3101366A2
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EP
European Patent Office
Prior art keywords
water
tank
volume
final
regime
Prior art date
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EP16171629.5A
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English (en)
French (fr)
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EP3101366A3 (de
EP3101366B1 (de
Inventor
Nathanaël BEEKER-ADDA
Paul Malisani
Anne-Sophie Coince
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Electricite de France SA
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Electricite de France SA
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1051—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water
    • F24D19/1063—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water counting of energy consumption
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D17/00—Domestic hot-water supply systems
    • F24D17/0026—Domestic hot-water supply systems with conventional heating means
    • F24D17/0031—Domestic hot-water supply systems with conventional heating means with accumulation of the heated water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/10—Control of fluid heaters characterised by the purpose of the control
    • F24H15/144—Measuring or calculating energy consumption
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/10—Control of fluid heaters characterised by the purpose of the control
    • F24H15/156—Reducing the quantity of energy consumed; Increasing efficiency
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/10—Control of fluid heaters characterised by the purpose of the control
    • F24H15/174—Supplying heated water with desired temperature or desired range of temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/212—Temperature of the water
    • F24H15/223—Temperature of the water in the water storage tank
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/238—Flow rate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/296—Information from neighbouring devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/355—Control of heat-generating means in heaters
    • F24H15/37—Control of heat-generating means in heaters of electric heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/40—Control of fluid heaters characterised by the type of controllers
    • F24H15/414—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based
    • F24H15/45—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based remotely accessible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
    • F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
    • F24H9/2021—Storage heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/08—Electric heater
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/04—Sensors
    • F24D2220/044—Flow sensors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/08—Storage tanks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/10—Control of fluid heaters characterised by the purpose of the control
    • F24H15/176—Improving or maintaining comfort of users
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/281—Input from user

Definitions

  • the present invention relates to a method for estimating a thermal quantity in a water heater type system.
  • the "energy mix” refers to the distribution of the different sources consumed for the production of electrical energy. This energy mix, in constant evolution, sees the constant progression of the Renewable Energys, which entails an increased need in flexibilities of the system.
  • the latter mainly represented by wind power and photovoltaics, do not allow a constant and regulated production, unlike a nuclear power plant, hence the problems of variability and predictability of the associated production. This makes the risks of the very short term increase sharply.
  • thermodynamic profile data ie more complex thermodynamic parameters than a simple temperature value, in particular the quantities of energy stored / storable in the storage tanks. these water heaters.
  • energies may be estimated in the form of heat capacity of water (4185 kg j -.. K 1 -1) from the temperature and volume of the reservoir, but this amounts to model a tank with a volume of water of uniform temperature, which is in practice false and constitutes a strong approximation.
  • a more precise estimate of the temperature profile would allow a more precise control of the water heater park and thus an optimization of the energy consumption and a better adaptation compared to the variability of the productions at the local scale to satisfy the constraints on the network. , without prejudice to the comfort of the user.
  • WO2012164102 proposes a ball divided into several "layers" each equipped with a temperature sensor. From two temperature setpoints and measurements of these sensors, it is possible to calculate "variables of interest” such as the remaining energy capacity of the balloon or the minimum energy required to ensure that the water is uniformly at the first temperature set point.
  • the water inlet and / or the water outlet being equipped with a flow sensor measuring a water flow drawn off;
  • the invention relates to a water heater system comprising a water tank, a device comprising a heating means powered by an electrical network, a control module of said device, and an estimation set of a thermal quantity according to the second aspect of the invention, adapted for the tank.
  • the invention relates to a computer program product comprising code instructions for executing a method according to the first aspect of estimating a thermal quantity of a water tank. when said program is run on a computer; and computer-readable storage means on which a computer program product comprises code instructions for executing a method according to the first aspect of the invention for estimating a thermal quantity of a water reservoir.
  • the figure 1a represents the general architecture of an embodiment possibility of a system 1 for implementing the method according to the invention.
  • This system is typically a water heater, in particular Joule Water Heater (CEJ), although the invention is not limited thereto. 44% of the habitats are equipped.
  • the system 1 may be a thermodynamic water heater.
  • the electric heating means of the heating device 11 is generally a resistance, hence the heating of the water by joule effect.
  • it may be for example a complete heat pump whose hot source is in heat exchange with the water of the tank 10 (and the cold source in heat exchange for example with the outside air), so to allow heating of the water with an efficiency higher than 100%. This is called a thermodynamic water heater.
  • the device 11 is entirely electric (it thus includes only heating means powered by the network 2, and no gas burners for example).
  • the heating energy supplied to the water is then entirely of electrical origin.
  • the system is however not limited to this configuration and the device 11 may alternatively furthermore comprise an alternative (non-electric) heating means such as a burner, an exchanger with a solar collector, etc.
  • the network 2 is a large-scale network that connects a plurality of electrical sources. As explained above, it is at the same time of energy of non-renewable origin (nuclear and / or fossil) and of renewable origin (solar, wind, etc.). Renewable energy presents problems of variability and predictability, whereas the energy of non-renewable origin is of a better availability.
  • the network 2 encompasses both the global electricity network and the local electrical network of the home. user (in other words that the remote power plants and the local solar panels can both feed the heating device 11).
  • System 1 is temperature regulated.
  • it generally comprises, as explained, one or more temperature probes 20 and a control module 12 of the heating device 11.
  • the probe or sensors 20 continuously or intermittently send a signal representative of the temperature of the water of the tank 10
  • the present method can optionally provide, for example, an average temperature of the water of the reservoir 10 (in other words the temperature is no longer measured but estimated), which replaces the probe or probes. 20 which are not indispensable.
  • the control module 12 is typically an electronic card that triggers or not the heating according to the temperature of the water and many other possible parameters (programming, season, time periods, off-peak hours / full hours, usual uses of the user, etc.).
  • a Joule water heater most often includes two threshold temperatures (whose value may vary according to the moment and personal settings): a first threshold temperature which is the "minimum” temperature and a second threshold temperature that is the “maximum” temperature (the first threshold is below the second threshold). These two thresholds are a few degrees around (for example +/- 4 ° C) a temperature of "comfort” which is the desired average temperature set by the user (the interval 50-65 ° C is current).
  • the control module 12 is thus configured to activate the heating device 11 when the temperature (measured or estimated) is lower at the first predefined threshold, and / or configured to deactivate the heating device 11 when this temperature exceeds the second predefined threshold.
  • the heater 11 is stopped and that is between the two thresholds nothing happens. If the temperature decreases (with time or because the user draws hot water) and passes below the first threshold, the heater 11 is activity, and until the second threshold (maximum temperature, greater than the first threshold). The temperature then goes down again, and so on. In other words there is an alternation of "cooling" phases during which the temperature drops from the second threshold to the first threshold (see above if the user continues to use hot water), and phases of "heating" during which the temperature rises under the effect of the device 11 lit from a temperature less than or equal to the first threshold to the second threshold.
  • this configuration may depend on other parameters, and there may be more than two thresholds, possibly mobile, for example to optimize energy consumption during off-peak hours (water heaters are often provided for to raise the temperature of the water preferentially in the early morning, so as to maximize the use of the off-peak hours and to have hot water in quantity at the moment of showering).
  • water heaters are often provided for to raise the temperature of the water preferentially in the early morning, so as to maximize the use of the off-peak hours and to have hot water in quantity at the moment of showering).
  • the first and second thresholds are often the consequence of a hysteresis phenomenon around a median value, which defines these two thresholds.
  • the induced difference is then about 3 ° C.
  • the present invention is not limited to any particular configuration.
  • the present method proposes to estimate a thermal quantity of the tank from an innovative model of the tank 10.
  • This quantity can be of many types and can be for example selected from an average temperature of the water of the tank 10, a minimum temperature of the water of the tank 10, a maximum temperature of the water of the tank 10, an amount of energy stored in the tank 10, an amount of energy still storable in the tank 10, and combinations of these quantities (or any quantity directly derived from one of these quantities or one of their combinations).
  • the size can still be a hot water indicator available (or comfort indicator): for example the equivalent volume of hot water at 40 ° C (or another given temperature) available to the consumer, ie volume corresponding to the mixture water above 40 ° C in the flask mixed with cold water to obtain water at 40 ° C (alternatively, the energy contained in the hot water of the flask above 40 ° C) compared to cold mains water), and more generally any indicator of the amount of hot water available to the consumer, which can be defined using the temperature profile and values representing the consumer comfort requirements. .
  • a hot water indicator available for example the equivalent volume of hot water at 40 ° C (or another given temperature) available to the consumer, ie volume corresponding to the mixture water above 40 ° C in the flask mixed with cold water to obtain water at 40 ° C (alternatively, the energy contained in the hot water of the flask above 40 ° C) compared to cold mains water), and more generally any indicator of the amount of hot water available to the consumer, which can be
  • the size may still be a heating time required for the heater to have an effect on the previously defined comfort indicator. This variable comes from the fact that the heating of the balloon is by the bottom of the volume of water, and affects the hot water layers of the tank located at the top of the tank 10 only belatedly.
  • the objective is to obtain a temperature "profile", ie a spatial knowledge of the temperature within the reservoir, from which it will be possible to estimate reliably and specifies said quantities.
  • a point measurement of the temperature by a probe 20 is representative only of a local temperature, the actual average temperature being very different.
  • the present method thus substantially reduces the necessary approximations in existing water heaters.
  • the present method is perfectly adapted to a heater. existing water without intrusive modifications.
  • Each of these parts P1, P2 and P3 is associated with a respective temperature T1, T2 and T3 and a respective volume V1, V2 and V3.
  • the present method is implemented by data processing means 30 which can take various forms. It is only important that these means 30 are on the one hand connected to the flow sensor 21, 22, and on the other hand adapted to receive data representative of an electrical consumption of the heating device 11. It will be understood that these can be the data representative of an electrical consumption of all the water heater, it is sufficient that data can recalculate the energy effectively transmitted to the water of the tank 10 during heating.
  • the processing means 30 are those of a dedicated module connected to the control module 12 and to an element 23 for measuring the electrical consumption of the water heater.
  • This is for example a torus of intensity disposed around the power cable of the system 1, and preferably the device described in the application FR1550869 .
  • the module 30 can be connected (via network connection means such as Wi-Fi, an Ethernet link, the PLC, etc.) to a box 31 which is an internet access equipment 3 of type " box "of an Internet access provider for the provision of general data useful for the implementation of the present method which will be described later.
  • This is typically an embodiment in which one comes to equip an existing water heater.
  • these means 30 are integrated in the control module 12 of the water heater.
  • the device 11 since the device 11 is supplied with power via the module 12, its consumption is automatically available.
  • the figure 1b which represents a such case, it is typically a new water heater provided from the outset to implement the present method. As we see such a water heater may not include a temperature sensor 20.
  • the means 30 are those of a connected dedicated box such as an intelligent electric meter 32 (for example LINKY) via which the heating means of the device 11 is powered, and having a transmitter Telecommunication-Information Client (TIC ) integrated or not.
  • a counter 32 directly has the consumption information of the heating device 11.
  • the means 30 are those of the box 31 for Internet access "box" type of an Internet access provider.
  • the box 31 receives from the control module 12 the consumption data.
  • the means 30 are those of a server of the Internet network 3.
  • the data (of consumption or of rate) are emitted (for example by the box 31 if it is configured to centralize them) in a request obtaining the thermal quantity.
  • Figures 1a-1e are five non-limiting and combinable examples.
  • any of these examples may use a device 23 for measuring the consumption of the system 1.
  • the first regime may comprise two sub-modes, depending on whether the electric heating means is on or off.
  • the determination of the speed is done according to the data representative of the energy consumption of said heating means of the device 11, and measurements of water flow withdrawn (via the sensor 21, 22). In particular, if the flow is non-zero it is first regime. If the flow is zero then we look at the consumption. If it is zero (or very low, i.e. only control equipment of the water heater such as the module 12 are lit), then we are in the third regime, otherwise we are in the second regime.
  • This step (a) is advantageously carried out at regular intervals, the idea being to determine the time intervals of each of the regimes, the idea being to consider the operation of the system 1 by fragments, or "elementary intervals", in which only one regime is implemented.
  • the processing means consider that it is in the third regime, and that it implements a determination of the regime when a signal representative of a consumption and / or a non-zero flow.
  • step (b) will consist in determining at least the final volume V2 f of the intermediate part. P2 (or alternatively the final volume V3 f of the upper part P3), the final temperature T3 f of the upper portion P3, the final temperature T2 f of the intermediate portion P2 and the final temperature T1 f of the lower part P1, according the determined regime (and the consumption and / or flow data). Each of these regimes corresponds to an evolution according to a given dynamic.
  • Step (c) then sees the determination, from initial volumes V1 i , V3 i of the lower and upper parts P1, P3 and said final volume V2 f of the intermediate part P2, of final volumes V1 f , V3 f of lower and upper parts P1, P3, so as to have each of the final volumes and temperatures T1 f , T2 f , T3 f , V1 f , V2 f , V3 f parts P1, P2, P3.
  • the volume calculations of step (c) are extremely simple.
  • step (b) comprises determining the final volume V3 f of the upper part P3 (instead of the final volume V2 f of the intermediate part P2)
  • step (c) consists in determining, from initial volumes V1 i , V2 i of the lower and intermediate parts P1, P2 and said final volume V3 f of the upper part P3, final volumes V1 f , V2 f of the lower and intermediate parts P1, P2. Only the first will be described, but the two solutions are rigorously equivalent because V2 and V3 are directly related, and the skilled person will know how to implement one as well as the other.
  • the stratified model detailed above preferentially proposes to consider the lower part P1 as a "dead" volume, and thus take the volume V1 of this lower part P1.
  • the method comprises the repetition of steps (a) to (c) so that the final temperatures and volumes T1 f , T2 f , T3 f , V1 f , V2 f , V3 f parts P1, P2, P3 are used as initial temperatures and volumes T1 i , T2 i , T3 i , V1 i , V2 i , V3 i parts P1, P2, P3 at the next iteration, and so on.
  • the means 30 calculate their evolutions as a function of the injection of the volume v of cold water at a temperature Te, static losses (exchange with the environment medium at a temperature Ta, possibly depending on geometrical data such as the section and the height of the tank) and the power injection via the heating means.
  • the cold water temperature Te and the ambient temperature Ta can be measured, estimated from predefined weather data (historical or real-time) (from numerical simulations). ) or fixed. They can be received via the Internet 3.
  • the temperature profile changes according to the thermal losses that naturally apply to the tank.
  • a withdrawal is applied to the tank 10, which is optionally added a heater.
  • the volume v of cold water at the temperature Te is added to the intermediate part P2.
  • the tank 10 may have at least one temperature sensor 20 configured to emit a signal representative of the temperature of a portion P1, P2, P3 of the water of the tank 10 (typical case of a modified water heater).
  • Step (b) then preferably comprises a control of the final temperatures T2 f , T3 f parts P2, P3 as a function of said signal emitted by the probe 20.
  • the means 30 verify the compliance of the temperatures T2 f , T3 f determined with respect to the temperature or temperatures measured. If there is too much difference (it is normal for there to be a difference because the layer model is theoretical), the determined values T2 f , T3 f are modified and the model is adapted. In a particularly preferred manner, the means 30 implement learning from said temperature measurements so as to improve the quality of the model.
  • V2 is only increasing and V3 is only decreasing.
  • P2 and P3 are definition of the parts “cold” and “hot”, respectively, whose temperatures converge inexorably: the temperature T2 of P2 increases thanks to the injected power, and the temperature T3 of P3 decreases with the static losses.
  • step (b) advantageously comprises the "melting" of the lower and upper parts P2, P3 when their temperature difference (ie the difference between T2 f and T3 f after their calculation) is less than a predefined threshold, for example.
  • a predefined threshold for example. Example 5 ° K. This also impacts step (c).
  • the two parts P2, P3 mix to form a single homogeneous temperature volume.
  • P2 is "empty” in P3, and V2 and V3 can again respectively decrease and grow. Values are thus obtained "corrected” f T1 ', T2 f', T3 f ', f V1', V2 f ', V3 f' temperatures and final volumes of the parts P1, P2, P3.
  • any "merger" of parts P2, P3 is purely theoretical and does not correspond to any real physical phenomenon then taking place in the tank 10 (in particular, there is no massive water transfer from the lower part P2 to the upper part P3), but that it effectively simulates the reality and allows to provide values of temperatures and volumes from which the magnitude thermal research can be calculated realistically.
  • the means 30 estimate said thermal magnitude of the water reservoir 10 according to the temperatures and final volumes f T1, f T2, f T3, f V1, V2 f, f V3 portions P1, P2, P3 of the reservoir 10.
  • the thermal quantity is the total energy, it is proportional to T3 f * V3 f + T2 f * V2 f + T1 f , * V1 f
  • the estimated value can be just transmitted to the user (for example displayed on interface means) or stored (for example sent via network 3 for statistics), but also used in the operation of the water heater.
  • it advantageously comprises a step (e) of controlling said heating device 11 by the control module 12 as a function of said determined thermal quantity. It can be a simple control to obtain a temperature of comfort, in particular in a water heater of the type of that of the figure 1 b. The thermal value can indeed replace any measurement of temperature while allowing a precise control.
  • step (e) comprises the reception of descriptive data of a state of the electrical network 2 by the data processing module 30, the determination of a setpoint according to said magnitude. determined thermal and descriptive data of a state of the electrical network 2, and the issuance of said setpoint to the control module 12 so as to modify an energy capacity of the water tank 10.
  • the idea is to alter the normal regulation of the temperature of the tank 10 and cause overheating / underheating. This is particularly easy to manage if the estimated thermal magnitude is a quantity of energy stored by the tank 10 or a quantity which results, for example the remaining energy capacity of the tank 10, ie the amount of energy still storable.
  • the present method thus proposes using the installed water heaters to manage the electricity production of renewable origin, easily and efficiently: the issuing of adapted instructions makes it possible to increase or decrease on demand the consumption of these products. water heater and play on stored energy as hot water. The energy capacity becomes flexible. Several TWh are thus available on the French territory for example.
  • the obtaining of the setpoint is carried out according to descriptive data of a state of said electricity grid 2. These data generally indicate all the information on the load of the network 2, the energy rate of renewable origin, the forecasts variation of this rate, of production / consumption in general, etc.
  • These data can be generic data obtained locally, for example of meteorological origin, which can indicate to what extent the means of production of renewable energy will be productive, but preferably it is more complex data. provided from the internet network 3 via the box 31, in particular in real time.
  • the data used may in particular be the fields of ICT such as for example: the binary status of one or more virtual contacts, the tariff index of the current supplier and / or distributor grid, the price of electricity, the mobile peak notice and / or one or more points (s) mobile (s), etc.
  • ICT Transmitter Client Information
  • the means 30 determine a power setpoint (that is to say an effective power target value) as a function of the descriptive data of the state of the network 2.
  • the control module 12 then regulates the device 11 for heating power.
  • a first and / or a second type of operation can be implemented.
  • the first is the "boost mode” (in other words “forced run”) used to increase the consumption of the water heater and thus the amount of energy stored.
  • the means 30 are configured to transmit a power increase setpoint (in other words a power setpoint increasing the consumption of the heating means of the device 11) when the descriptive data of a state of said power grid 2 are characteristics of a current glut and / or future energy deficit of renewable origin within the electricity grid 2 (in other words, if the production of renewable origin is decreasing in the short term) , so as to increase the energy capacity of the water tank 10.
  • This supercharging mode is interesting either to absorb a strong photovoltaic production, or to prevent a low production. Thanks to the supercharging, the effect of the device 10 is amplified. This increases the immediate consumption, but delays the consumption to come (since more energy is stored, the next crossing of the first temperature threshold is delayed).
  • the value of the power setpoint may be such as to consume as much as possible of the surplus energy of renewable origin without affecting the energy of non-renewable origin.
  • the value can also be a fixed value, or the current consumption value plus a predetermined deviation (eg + 500W).
  • this supercharging mode may be supplemented with certain options: if the data triggering supercharging is provided by a counter equipped with an ICT module, the latter may temporarily increase, at the same time as the activation of the water heater, the value cutting power to avoid any risk of tripping in the absence of a load shedder or energy manager.
  • the water heating system is slaved to the tariff signal via a dry contact or virtual contact, the latter must be controlled so as to allow the power supply of this system outside the normal ranges allowed if necessary.
  • the draw points of domestic hot water (shower, faucets, etc.) downstream are not all equipped with mixing valve, the addition of a mixing valve at the outlet of the tank 10 makes it possible to avoid risk of burns due to the supply of hot water.
  • the second mode is the "under-power” mode (in other words “reduced run”) used to decrease the consumption of the water heater and thus the amount of energy stored.
  • the means 30 are configured to emit a power reduction setpoint (in other words a power setpoint decreasing the consumption of the heating means of the device 11), when the data describing a state of said power grid 2 are characteristic of a current and / or future glut of renewable energy within the electricity grid 2 (in other words, if the renewable generation is up short term), so as to reduce the energy capacity of the water reservoir 10.
  • the power drop instruction can be calculated so as to minimize energy consumption of non-renewable origin.
  • the idea is not to (or as little as possible) extract non-renewable energy from grid 2. It can also be a fixed value, or the current value of consumption minus a predetermined difference (for example -500W ).
  • the two modes can coexist and be implemented in turn.
  • the application of the power setpoint can be preceded and / or followed by a ramp to avoid a rebound effect, in other words the power setpoint is gradually increased / decreased (for example linearly over an interval of 30 minutes), instead of switching immediately.
  • the activation of one or other of the modes, the choice of a fixed or variable power set point, the temperature thresholds, etc., can be controlled by the user via a suitable interface.
  • control module 12 can be configured to ignore the power setpoint when the estimated thermal magnitude is representative of a potential degradation of the comfort of the user.
  • the means 30 can implement a decoy element role as described in the application FR1363229 .
  • the invention relates to a set of estimation of a thermal quantity adapted for a water tank 10 of an existing water heater.
  • each of these elements can fit on an existing water heater without substantial modifications, and keeping the temperature sensor.
  • step (e) it is sufficient to connect the processing means 30 to the control module 12, for example via an Ethernet cable.
  • the invention also relates to the system 1 of "modified" water heater, that is to say comprising a water tank 10, a device 11 comprising a heating means powered by an electrical network 2, a control module 12 of said device 11, and a set of estimation of a thermal quantity according to the second aspect of the invention, adapted for the tank 10.
  • the invention also relates to the "new" water heater system 1, that is to say comprising a water tank 10, a device 11 comprising a heating means powered by an electrical network 2 and a control module 12 of said device 11, the control module 12 comprising data processing means 30 configured to implement the method for estimating a thermal quantity according to the first aspect of the invention.
  • the invention relates to a computer program product comprising code instructions for the execution (on data processing means 30) of a method according to the first aspect of the estimation invention.
  • a thermal quantity of a water tank 10 as well as storage means readable by a computer equipment (for example a memory of the control module 12 if it contains the means 30) on which we find this product computer program.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Fluid Mechanics (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
EP16171629.5A 2015-05-29 2016-05-27 Schätzverfahren einer physikalischen grösse eines boiler-wasserspeichers Active EP3101366B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1554896A FR3036776B1 (fr) 2015-05-29 2015-05-29 Procede d'estimation d'une grandeur physique d'un reservoir d'eau d'un chauffe-eau

Publications (3)

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EP3101366A2 true EP3101366A2 (de) 2016-12-07
EP3101366A3 EP3101366A3 (de) 2017-03-22
EP3101366B1 EP3101366B1 (de) 2019-06-26

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3068440A1 (fr) * 2017-06-28 2019-01-04 Electricite De France Procede d'estimation de l'energie thermique accumulee dans un reservoir d'eau d'un chauffe-eau sur un intervalle de temps
EP3995747A1 (de) * 2020-11-05 2022-05-11 Midea Group Co., Ltd. Verfahren zur einstellung der temperatur eines wassererhitzers, wassererhitzer und nicht-transitorisches computerlesbares speichermedium
CN117404817A (zh) * 2023-12-12 2024-01-16 珠海格力电器股份有限公司 多联机系统中热水器容积确定方法及装置

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Publication number Priority date Publication date Assignee Title
FR1363237A (fr) 1963-04-17 1964-06-12 Antoine Besson & Lepeu Ets Perfectionnements apportés aux murs-rideaux
FR1363229A (fr) 1963-04-08 1964-06-12 L Salvy & Fils Ets Agencement de corbeilles présentoirs superposables
FR1453375A (fr) 1964-07-21 1966-06-03 Boehringer Sohn Ingelheim Procédés de préparation de nouveaux dérivés de la pipéridine
FR1452022A (fr) 1965-03-12 1966-09-09 Jouvenel & Cordier Perfectionnements aux distributeurs pneumatiques
FR1550869A (de) 1967-01-13 1968-12-20
WO2012164102A2 (en) 2011-06-03 2012-12-06 Vlaamse Instelling Voor Technologisch Onderzoek (Vito) Method and system for buffering thermal energy and thermal energy buffer system

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FR2919045B1 (fr) * 2007-07-20 2015-09-04 Cotherm Sa Dispositif de pilotage pour economiser l'energie d'un chauffe eau
US20130299600A1 (en) * 2012-05-11 2013-11-14 James Randall Beckers Water heater having improved temperature control
GB2518365B (en) * 2013-09-18 2015-08-05 Exergy Devices Ltd Apparatus and method for volumetric estimation of heated water

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Publication number Priority date Publication date Assignee Title
FR1363229A (fr) 1963-04-08 1964-06-12 L Salvy & Fils Ets Agencement de corbeilles présentoirs superposables
FR1363237A (fr) 1963-04-17 1964-06-12 Antoine Besson & Lepeu Ets Perfectionnements apportés aux murs-rideaux
FR1453375A (fr) 1964-07-21 1966-06-03 Boehringer Sohn Ingelheim Procédés de préparation de nouveaux dérivés de la pipéridine
FR1452022A (fr) 1965-03-12 1966-09-09 Jouvenel & Cordier Perfectionnements aux distributeurs pneumatiques
FR1550869A (de) 1967-01-13 1968-12-20
WO2012164102A2 (en) 2011-06-03 2012-12-06 Vlaamse Instelling Voor Technologisch Onderzoek (Vito) Method and system for buffering thermal energy and thermal energy buffer system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3068440A1 (fr) * 2017-06-28 2019-01-04 Electricite De France Procede d'estimation de l'energie thermique accumulee dans un reservoir d'eau d'un chauffe-eau sur un intervalle de temps
EP3995747A1 (de) * 2020-11-05 2022-05-11 Midea Group Co., Ltd. Verfahren zur einstellung der temperatur eines wassererhitzers, wassererhitzer und nicht-transitorisches computerlesbares speichermedium
CN117404817A (zh) * 2023-12-12 2024-01-16 珠海格力电器股份有限公司 多联机系统中热水器容积确定方法及装置
CN117404817B (zh) * 2023-12-12 2024-04-02 珠海格力电器股份有限公司 多联机系统中热水器容积确定方法及装置

Also Published As

Publication number Publication date
EP3101366A3 (de) 2017-03-22
FR3036776B1 (fr) 2017-06-30
EP3101366B1 (de) 2019-06-26
FR3036776A1 (fr) 2016-12-02

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