WO2022168039A1 - Procédés et systèmes de modulation de l'utilisation d'énergie - Google Patents

Procédés et systèmes de modulation de l'utilisation d'énergie Download PDF

Info

Publication number
WO2022168039A1
WO2022168039A1 PCT/IB2022/051070 IB2022051070W WO2022168039A1 WO 2022168039 A1 WO2022168039 A1 WO 2022168039A1 IB 2022051070 W IB2022051070 W IB 2022051070W WO 2022168039 A1 WO2022168039 A1 WO 2022168039A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
thermal energy
provision system
energy storage
control module
Prior art date
Application number
PCT/IB2022/051070
Other languages
English (en)
Inventor
Peter KONOWALCZYK
Original Assignee
Octopus Energy Group Limited
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
Priority claimed from GBGB2101678.7A external-priority patent/GB202101678D0/en
Application filed by Octopus Energy Group Limited filed Critical Octopus Energy Group Limited
Priority to CN202280023174.2A priority Critical patent/CN117063039A/zh
Priority to JP2023547266A priority patent/JP2024508646A/ja
Priority to US18/263,185 priority patent/US20240085061A1/en
Priority to EP22709024.8A priority patent/EP4288736A1/fr
Priority to AU2022215953A priority patent/AU2022215953A1/en
Priority to KR1020237028229A priority patent/KR20230154007A/ko
Publication of WO2022168039A1 publication Critical patent/WO2022168039A1/fr

Links

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
    • 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
    • F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
    • F24D19/1048—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
    • 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
    • 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
    • F24D19/1066—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water
    • F24D19/1081—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water counting of 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
    • F24H15/144—Measuring or calculating energy consumption
    • F24H15/148—Assessing the current 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
    • F24H15/16—Reducing cost using the price of energy, e.g. choosing or switching between different energy sources
    • F24H15/164—Reducing cost using the price of energy, e.g. choosing or switching between different energy sources where the price of the electric supply changes with time
    • 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
    • F24H15/168—Reducing the electric power demand peak
    • 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
    • F24H15/273—Address or location
    • 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
    • F24H15/277—Price
    • 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
    • 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
    • F24H15/421—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based using pre-stored data
    • F24H15/429—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based using pre-stored data for selecting operation modes
    • 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
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/12—Heat pump

Definitions

  • the present disclosure relates to methods and systems for managing utility consumption.
  • the present disclosure relates to methods and systems for actively modulating water and/or energy consumption in a domestic setting, as well as commercial, public and other settings with water and/or energy provisions.
  • heated water is required throughout the day all year round. It goes without saying that the provision of heated water requires both clean water and a source of heat.
  • a heating system is provided to an often centralised water provision system to heat water up to a predetermined temperature e.g. set by a user, and the heat source used is conventionally one or more electric heating elements or burning of natural gas.
  • the heat source used is conventionally one or more electric heating elements or burning of natural gas.
  • utilities providers would implement a peak tariff which increases the unit cost of energy, partly to cover the additional cost of having to purchase more energy to supply to customers and partly to discourage unnecessary energy usage.
  • a heat pump is a device that transfers thermal energy from a source of heat to a thermal reservoir.
  • a heat pump requires electricity to accomplish the work of transferring thermal energy from the heat source to the thermal reservoir, it is generally more efficient than electrical resistance heaters (electrical heating elements) as it typically has a coefficient of performance of at least 3 or 4. This means under equal electricity usage 3 or 4 times the amount of heat can be provided to users via heat pumps compared to electrical resistance heaters.
  • the heat transfer medium that carries the thermal energy is known as a refrigerant.
  • Thermal energy from the air e.g. outside air, or air from a hot room in the house
  • a ground source e.g. ground loop or water filled borehole
  • the now higher energy refrigerant is compressed, causing it to raise temperature considerably, where this now hot refrigerant exchanges thermal energy via a heat exchanger to a heating water loop.
  • heat extracted by the heat pump can be transferred to a water in an insulated tank that acts as a thermal energy storage, and the heated water may be used at a later time when needed.
  • the heated water may be diverted to one or more water outlets, e.g. a tap, a shower, a radiator, as required.
  • a heat pump generally requires more time compared to electrical resistance heaters to get water up to the desired temperature.
  • an aspect of the present technology provides a computer- implemented method of modulating energy consumption by a water provision system installed in a building, the water provision system comprising one or more electrical heating elements operable to heat water, a heat pump configured to transfer thermal energy from outside the building to a thermal energy storage medium inside the building and a control module configured to control operation of the water provision system, the water provision system being configured to provide water heated by the one or more electrical heating elements and/or the thermal energy storage medium to one or more water outlets, the method being performed by the control module and comprising: determining a level of energy demands of a geographical region comprising the building; and upon determining that the level of energy demands is high, controlling the water provision system to switch from using the one or more electrical heating elements to the thermal energy storage medium for provision of heated water.
  • Embodiments of the present technology actively switches to a more energy-efficient heat source for provision of heated water during periods of high energy demands. In doing so, it is possible to reduce energy demands during periods of high energy demands.
  • the method may further comprise operating the heat pump to transfer thermal energy to the thermal energy storage medium based on an expected heated water demand. In doing so, the heat pump is operated in anticipation of an expected heated water demand to ensure that there is a sufficient amount of heat stored in the thermal energy storage medium to meet the expected demand.
  • Heated water usage often follows a predictable pattern. For example, in a domestic setting, demands for heated water are often high in the morning and in the evening, but low during the middle of the day.
  • the method may further comprise determining the expected heated water demand based on a water usage pattern established from historic usage of the water provision system. In doing so, the heat pump may be operated to store heat in the thermal energy storage medium ahead of an expected rise in demands.
  • the method may further comprise, upon determining that the level of energy demands is high, implementing at least one utility consumption reduction strategy.
  • the control module is able to control and modulate heated water usage to reduce energy expenditure and/or water consumption during periods of high energy demands.
  • the at least one utility consumption reduction strategy may comprise determining that a first water outlet of the one or more water outlets is in-use, and reducing a flow rate of heated water being provided to the first water outlet from a first flow rate to a second flow rate lower than the first flow rate. By reducing the flow rate of heated water, less water is used over a given period of time and as such less energy is required to heat the water.
  • the at least one utility consumption reduction strategy may comprise determining that a second water outlet of the one or more water outlets is in-use, and reducing a temperature of heated water being provided to the second water outlet from a first temperature to a second temperature lower than the first temperature. By reducing the temperature of heated water, less energy is required to heat a given amount of water.
  • the water provision system may be configured to supply heated water to a central heating system configured to raise an indoor temperature of the building, and the at least one utility consumption reduction strategy may comprise controlling the water provision system to supply heated water to the central heating system such that a heating output of the central heating system meets at least one heating target.
  • controlling the water provision system to supply heated water to the central heating system may comprise adjusting a flow rate and/or a temperature and/or a duration of heated water being supplied to the central heating system.
  • the at least one heating target may comprise a maximum amount of energy to be used for heating water supplied to the central heating system. In some embodiments, the maximum amount of energy may be determined based on an amount of energy stored in the thermal energy storage medium.
  • the method may further comprise operating the heat pump to store thermal energy in the thermal energy storage medium upon determining that the level of energy demands is low. In doing so, it is possible to ensure that the thermal energy storage medium is ready for heated water provision when the water provision system is controlled to switch from using the one or more electrical heating elements to the thermal energy storage medium for provision of heated water during periods of high energy demands.
  • the level of energy demands may be determined based on tariff data obtained from an energy supplier.
  • the level of energy demands may be determined to be high when the tariff data indicates a peak tariff.
  • control module configured to control operation of a water provision system installed in a building, the water provision system comprising a heat pump configured to transfer thermal energy to a thermal energy storage medium and one or more electrical heating elements operable to heat water, the water provision system being configured to provide water heated by the one or more electrical heating elements operable to heat water and/or the thermal energy storage medium to one or more water outlets, the control module comprising control circuitry configured to: determine a level of energy demands of a geographical region comprising the building; and upon determining that the level of energy demands is high, control the water provision system to switch from using the one or more electrical heating elements to the thermal energy storage medium for provision of heated water.
  • a further aspect of the present technology provides a water provision system for provisioning water to one or more water outlets disposed within a building, comprising: one or more electrical heating elements configured to heat water for provision by the water provision system; a thermal energy storage disposed inside the building configured to store thermal energy; a heat exchanger arranged proximal to the thermal energy storage configured to heat water for provision by the water provision system using thermal energy stored in the thermal energy storage; a heat pump configured to transfer thermal energy from outside the building to the thermal energy storage; and a control module configured to control operation of the water provision system, the control module comprising control circuitry configured to: determine a level of energy demands of a geographical region comprising the building; and upon determining that the level of energy demands is high, control the water provision system to switch from using the one or more electrical heating elements to the thermal energy storage medium for provision of heated water.
  • the present technology further provides a computer program stored on a computer readable storage medium for, when executed on a computer system, instructing the computer system to carry out the method as described above.
  • Implementations of the present technology each have at least one of the above- mentioned objects and/or aspects, but do not necessarily have all of them. It should be understood that some aspects of the present technology that have resulted from attempting to attain the above-mentioned object may not satisfy this object and/or may satisfy other objects not specifically recited herein.
  • Fig. 1 is a schematic system overview of an exemplary water provision system
  • Fig. 2 shows an exemplary method of modulating utility usage based on tariff
  • Fig. 3 shows an exemplary method of modulating water flow and temperature
  • Fig. 4 shows an exemplary method of modulating heating output.
  • the present disclosure provides various approaches for the provision of heated water using or assisted by a heat pump, and in some cases for modulating the use of utilities including water and energy to reduce water and energy wastage.
  • cold and heated water is provisioned by a centralized water provision system to a plurality of water outlets, including taps, showers, radiators, etc., for a building in a domestic or commercial setting.
  • An exemplary water provision system 100 is shown in Fig. 1.
  • the water provision system 100 comprises a control module 110.
  • the control module 110 is communicatively coupled to, and configured to control, various elements of the water provision system, including flow control 130 for example in the form of one or more valves arranged to control the flow of water internal and external to the system, a (ground source or air source) heat pump 140 configured to extract heat from the surrounding and deposit the extracted heat in a thermal energy storage 150 to be used to heat water, and one or more electric heating elements 160 configured to directly heat cold water to a desired temperature by controlling the amount of energy supplied to the electric heating elements 160. Heated water, whether heated by the thermal energy storage 150 or heated by the electric heating elements 160, is then directed to one or more water outlets and or a central heating system as and when needed.
  • flow control 130 for example in the form of one or more valves arranged to control the flow of water internal and external to the system
  • a (ground source or air source) heat pump 140 configured to extract heat from the surrounding and deposit the extracted heat in a thermal energy storage 150 to be used to heat water
  • the heat pump 140 extracts heat from the surrounding into a thermal energy storage medium within the thermal energy storage 150 until the thermal energy storage medium reach an operation temperature, then cold water e.g. from the mains can be heated by the thermal energy storage medium to the desired temperature. The heated water may then be supplied to various water outlets in the system.
  • the control module 110 is configured to receive input from a plurality of sensors 170-1, 170-2, 170-3, ..., 170-n.
  • the plurality of sensors 170-1, 170-2, 170-3, ..., 170-n may for example include one or more air temperature sensors disposed indoor and/or outdoor, one or more water temperature sensors, one or more water pressure sensors, one or more timers, one or more motion sensors, and may include other sensors not directly linked to the water provision system 100 such as a GPS signal receiver, calendar, weather forecasting app on e.g. a smartphone carried by an occupant and in communication with the control module via a communication channel.
  • the control module 110 is configured, in the present embodiment, to use the received input to perform a variety of control functions, for example controlling the flow of water through the flow control 130 to the thermal energy storage 150 or electric heating elements 160 to heat water.
  • one or more machine learning algorithm (MLA) 120 may execute on the control module 110, for example on a processor (not shown) of the control module 110 or on a server remote from the control module 110 and communicates with the processor of the control module 110 over a communication channel.
  • the MLA 120 may be trained using the input sensor data received by the control module 110 to establish a baseline water and energy usage pattern based e.g. on the time of the day, the day of the week, the date (e.g. seasonal changes, public holiday), occupancy, etc.
  • the learned usage pattern may then be used to determine, and in some cases improve, the various control functions performed by the control module 110, and/or generate a report e.g. to enable a user to analyze their utility usage and/or provide suggestions for more efficient utility usage.
  • the heat pump 140 may for example use a phase change material (PCM), which changes from a solid to a liquid upon heating, as a thermal energy storage medium.
  • PCM phase change material
  • additional time may be required to turn the PCM from solid to liquid, if it has been allowed to solidify, before thermal energy extracted by the heat pump can be used to raise the temperature of the thermal storage medium.
  • phase change material may be used as a thermal storage medium for the heat pump.
  • phase change materials are paraffin waxes which have a solid-liquid phase change at temperatures of interest for domestic hot water supplies and for use in combination with heat pumps.
  • paraffin waxes that melt at temperatures in the range 40 to 60 degrees Celsius (°C), and within this range waxes can be found that melt at different temperatures to suit specific applications.
  • Typical latent heat capacity is between about 180kJ/kg and 230kJ/kg and a specific heat capacity of perhaps 2.27Jg -1 K 1 in the liquid phase, and 2.1Jg -1 K 1 in the solid phase. It can be seen that very considerable amounts of energy can be stored taking using the latent heat of fusion.
  • More energy can also be stored by heating the phase change liquid above its melting point.
  • the heat pump may be operated to "charge” the thermal energy storage to a higher-than-normal temperature to "overheat" the thermal energy storage.
  • a suitable choice of wax may be one with a melting point at around 48°C, such as n- tricosane C23, or paraffin C20-C33, which requires the heat pump to operate at a temperature of around 51°C, and is capable of heating water to a satisfactory temperature of around 45°C for general domestic hot water, sufficient for e.g. kitchen/bathroom taps, shower, etc.
  • Cold water may be added to a flow to reduce water temperature if desired.
  • the maximum difference between the input and output temperature of the fluid heated by the heat pump is preferably kept in the range of 5°C to 7°C, although it can be as high as 10°C.
  • salt hydrates are also suitable for latent heat energy storage systems such as the present ones.
  • Salt hydrates in this context are mixtures of inorganic salts and water, with the phase change involving the loss of all or much of their water. At the phase transition, the hydrate crystals are divided into anhydrous (or less aqueous) salt and water.
  • Advantages of salt hydrates are that they have much higher thermal conductivities than paraffin waxes (between 2 to 5 times higher), and a much smaller volume change with phase transition.
  • a suitable salt hydrate for the current application is Na2S2C>3-5H2O, which has a melting point around 48°C to 49°C, and latent heat of 200-220 kJ/kg.
  • the present approach provides methods and systems to actively modulate energy usage that are integrated into a heated water provision system suitable for home, commercial or public use.
  • the present approach is of particularly relevance where a heat pump is used for the provision of heated water.
  • Actively modulating energy consumption based on current energy demands enables a heat pump to be operated to store heat in a thermal energy storage when energy demands on the national grid are low (e.g. during off-peak hours), and the stored energy can be later extracted to provide heated water and/or central heating when energy demands are high (e.g. during peak hours). This then reduces energy demands during peak periods to allow an improved balance of energy demands between peak and off-peak periods and improve the usability of heat pumps as a form of heated water provision and central heating.
  • Fig. 2 shows a method for modulating energy consumption based on current energy tariff according to an embodiment.
  • Energy tariffs e.g. obtain from an energy supplier, reflect the national or regional energy demands in a given time period; thus, in the present embodiment, energy tariffs are used as an indicator for implementing energy modulation.
  • the method may be implemented through a control module (e.g. control module 110) of a water provision system (e.g. water provision system 100) that provides heated water e.g. for a household in a domestic setting.
  • a control module e.g. control module 110
  • a water provision system e.g. water provision system 100
  • the method begins at S201 when the control module determines the current energy tariff, e.g. using data directly received from the energy supplier and/or based on data obtained from public domain (e.g. from the energy supplier's website).
  • the control module determines if the current energy tariff is a peak tariff (the unit cost of energy is high) that indicates a high demand on energy, or an off-peak tariff (the unit cost of energy is low) that indicates a low demand on energy. If the control module at S202 determines that the current energy tariff is an off-peak tariff, then at S203, the control module performs one or more off-peak strategies. For example, at S204, a heat pump (e.g. heat pump 140) may be operated to store energy in a thermal energy storage (e.g. thermal energy storage 150) such that at a later time, e.g. during peak periods, the stored energy can be extracted to heat water.
  • a heat pump e.g. heat pump 140
  • a thermal energy storage e.g. thermal energy storage 150
  • control module may increase the amount and/or temperature of heated water provided by the water provision system to a central heating system in order to increase heating output of the central heating system, and use the building structure in which the water provision system is installed as a heat storage medium.
  • control module at S202 determines that the current energy tariff is a peak tariff
  • the control module can instruct the water provision system to actively switch to a low-cost energy source for heating water, e.g. using thermal energy already stored in the thermal energy storage and/or operating the heat pump to continue transferring heat to the thermal energy storage in favour of operating the electrical heating elements.
  • control module can implement one or more utility consumption reduction strategies to modulate utility consumption at S208.
  • the control module may be programmed with one or more different reduction strategies and select one or more such strategies to implement during peak periods. A non-exhaustive list of example strategies is given here.
  • the control module can modulate the flow rate (or pressure) and/or temperature of heated water provided by the water provision system to a water outlet based on a heated water budget. For example, the flow rate of heated water to a water outlet may be reduced compared to the level set by a user in order to remain within the heated water budget, and/or the temperature of heated water supplied to a water outlet may be decreased compared to the temperature set by a user in order to remain within the heated water budget.
  • control module can adjust the amount (flow rate, pressure) and/or temperature of heated water provisioned to the central heating system, for example according to one or more heating targets.
  • control module can instruct the water provision system to reduce the amount and/or temperature of heated water supplied to the central heating system to meet an energy output target.
  • the control module can implement one or more off-peak strategies S203 to optimise the periods of low energy demands.
  • the control module is configured to operate the heat pump 140 to store energy in the thermal energy storage 150 during off-peak periods (S204), when energy demands are low.
  • the stored energy can be extracted at a later time, e.g. during peak periods, by the water provision system to heat water for provision to one or more water outlets and/or the central heating system.
  • the heat pump 140 may be operated to transfer heat from the surrounding into the thermal energy storage 150 to raise the temperature of, or charge, the thermal energy storage 150 to a predetermined operating temperature (e.g. 48°C).
  • the heat pump 140 may be operated to charge the thermal energy storage 150 to a temperature higher that the predetermined operating temperature to "overheat" the thermal energy storage 150 such that more energy is stored in the thermal energy storage 150 that can be used during peak periods.
  • water will be heated by the thermal energy storage 150 to a temperature higher than if the thermal energy storage 150 is charged to the lower predetermined operating temperature; however, the water temperature can be easily adjusted to a desired temperature by adding cold water and adjusting the proportions of cold water and heated water.
  • the control module is configured to increase the amount and/or temperature of heated water provided by the water provision system to the central heating system in order to increase the heating output of the central heating system (S205). More specifically, during off-peak periods when energy demands are low and the cost of energy is low, the control module can operate the heat pump 140 to preheat the thermal energy storage 150 to the predetermined operating temperature, and control the water provision system to heat water using energy stored in the thermal energy storage 150 and divert the heated water to the central heating system so as to heat the building structure in which the water provision system is installed. In addition, or alternatively, the control module can operate the electrical heating elements 160 to heat water that is then diverted by the water provision system to the central heating system.
  • control module can operate one or more electrical space heating devices (e.g. electrical radiators, infrared heaters, fan heaters, etc.) connected thereto to heat the building structure.
  • electrical space heating devices e.g. electrical radiators, infrared heaters, fan heaters, etc.
  • the building structure itself is used as a thermal energy buffer in addition to, or as an alternative to, the thermal energy storage 150.
  • the amount of thermal energy that can be stored in the building structure, and the rate at which the building structure loses heat to the surround depends on the heat capacity of the structure, the outdoor temperature, and how well the building is insulated, etc.
  • the control module can then control the water provision system to cease supplying heated water to the central heating system during peak periods and allow the building structure to slowly release the stored thermal energy as a form of passive heating.
  • an indoor heat pump may be provided to the water provision system and controlled by the control module 110 to extract heat from within the building and transfer the heat to e.g. the thermal energy storage 150. Then, the control module may operate the indoor heat pump to extract the excess thermal energy stored in the building structure and transfer the extracted energy to the thermal energy storage 150 to be used for heating water. Accordingly, the indoor heat pump is used to use the heated building as a thermal storage.
  • the control module can implement one or more peak time strategies, S206, to reduce energy demands placed on the national grid and reduce energy cost for the user.
  • One such strategies include switching to a low-cost, i.e. low energy demand, energy source, S207.
  • the control module 110 is configured to implement this strategy by switching to use the heat pump 140 in favour of the electrical heating elements 160 for heating water.
  • control module 110 may operate the heat pump 140 during off-peak periods (or low energy demands periods) to charge the thermal energy storage 150 to a predetermined operating temperature or higher.
  • the stored energy may then be used during peak periods (or high energy demands periods) for heating water.
  • control module 110 may be configured to learn a water usage pattern of users of the water provision system, e.g. by means of MLA 120, which enables the control module to predict when heated water may be needed.
  • the control module can still implement the present peak time strategy by, using the predictions enabled by the water usage pattern, operating the heat pump 140 before predicted heated water demands to prepare the thermal energy storage 150 for provision of heated water, instead of relying on the higher-cost electrical heating elements.
  • control module may optionally be programmed to implement one or more utility consumption reduction strategies during peak tariff S208.
  • the utility consumption reduction strategies may for example include modulation of heated water flow rate and/or temperature supplied by the water provision system S209, and/or modulation of heated water supplied to central heating by the water provision system based on one or more heating targets S210 (for example, based on temperature or duration (time)).
  • Fig. 3 shows a method of modulating the flow rate and/or temperature of heated water based on a heated water budget according to an embodiment.
  • the method begins with the control module implementing a water flow control strategy.
  • a water outlet connected to and supplied by the water provision system is opened.
  • the water outlet mayfor example be a watertap or a shower.
  • the water outlet may be turned on by a user by setting a water temperature e.g. with a temperature control and a flow rate e.g. with a water pressure control.
  • the control module Upon detecting that the water outlet is turned on, the control module begins monitoring an elapse time T at S302.
  • the control module may be provided with or connected to a timer for recording the elapse time T from when the water outlet is turned on.
  • the control module may be provided with or connected to multiple timers to enable it to determine multiple elapse times when multiple water outlets are turned on at the same time.
  • the elapse time T, together with the water temperature and pressure (flow rate) provides an indication of the amount of energy used.
  • an elapse time threshold T1 may be set based on a predetermined heated water budget that sets a limit on the amount of heated water, or the amount of energy used for heating water, to be used when the utility consumption reduction strategies are implemented (e.g. during peak hours).
  • the control module determines if the elapse time T exceeds the threshold Tl. If the control module determines that the elapse time T does not exceed the threshold Tl, the control module continues to monitor the water outlet at S304. If the water outlet is still open, the control module continues to monitor the elapse time T. If the water outlet is no longer open, the control module stops monitoring the water outlet and the process ends.
  • the control module at S305 controls the water provision system to reduce the flow rate of the heated water being supplied to the water outlet. In doing so, it is possible to reduce the overall amount of heated water used and thereby reducing both the amount of clean water consumed and the amount of energy required for heating water, the control module may alternatively or additionally control, at S305, the water provision system to reduce the temperature of the heated water being supplied to the water outlet. In doing so, it is possible to reduce the overall amount of energy consumed for heating water.
  • control module continues to monitor the elapse time T since the water outlet is turned on, and may reduce the flow rate further e.g. if the elapse time T exceeds the threshold Tl again.
  • Fig. 4 shows a method for modulating heated water supplied for central heating based on a predetermined heating target of set of heating targets according to an embodiment.
  • the method begins with the control module implementing a heating target.
  • the control module determines whether the central heating system is turned on. For example, the central heating system may be set to turn on at a specified time of the day, and/or when the indoor temperature reaches a specified temperature or below, and/or manually turned on by a user. If it is determined that the central heating system is not turned on, the process ends.
  • control module proceeds to monitorthe energy output E ou t of the central heating system, for example by monitoring the temperature and amount of heated water diverted to the central heating system and/or monitoring changes in the indoor temperature.
  • the control module determines the energy output E ou t of the central heating system, then at S403, the control module determines if the energy output E ou t meets a predetermined heating target.
  • the heating target may, for example, sets a predetermined maximum energy output for the central heating system e.g. in terms of an amount of energy to be expended and/or in terms of a maximum cost of energy to be spend on heating water supplied to the central heating system.
  • the control module determines that the energy output E ou t of the central heating system meets the heating target, e.g. that E ou t is below the predetermined maximum energy output, the control module continues to monitor at S404 whether the central heating system is still turned on, and continues to monitor the energy output E ou t of the central heating system if the central heating system is still turned on; otherwise, the process ends.
  • the control module determines that the energy output E ou t of the central heating system does not meet the heating target, e.g. that E ou t is above the predetermined maximum energy output, the control module reduces the energy output of the central heating system at S405 e.g. by reducing the temperature of the heated water and/or the amount of heated water (e.g. by reducing the flow and/or by supplying heated water intermittently) supplied to the central heating system by the water provision system. Then, the control module continues to monitor the energy output of the central heating system and may optionally perform further adjustment if the heating target is not met.
  • control module is able to control and modulate heated water usage to keep energy expenditure (optionally water consumption) to a budget. It would be clear to a skilled person that the above-described strategies can be implemented independently or in any combinations as desired.
  • the present approach by implementing strategies to store thermal energy in one or more thermal energy storage (including the building itself) during periods of low energy demands and using the stored thermal energy to heat water during periods of high energy demands, it is possible to improve the efficiency and usability of a heat pump as a practical low-cost way of provisioning heated water. Moreover, by shifting at least some of the energy demands for heating water from peak periods to off-peak periods, it is possible improve the balance of energy demands during different periods of time.
  • the present techniques may be embodied as a system, method or computer program product. Accordingly, the present techniques may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware.
  • the present techniques may take the form of a computer program product embodied in a computer readable medium having computer readable program code embodied thereon.
  • the computer readable medium may be a computer readable signal medium or a computer readable storage medium.
  • a computer readable medium may be, for example, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing.
  • Computer program code for carrying out operations of the present techniques may be written in any combination of one or more programming languages, including object-oriented programming languages and conventional procedural programming languages.
  • program code for carrying out operations of the present techniques may comprise source, object or executable code in a conventional programming language (interpreted or compiled) such as C, or assembly code, code for setting up or controlling an ASIC (Application Specific Integrated Circuit) or FPGA (Field Programmable Gate Array), or code for a hardware description language such as VerilogTM or VHDL (Very high-speed integrated circuit Hardware Description Language).
  • a conventional programming language interpreted or compiled
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • VerilogTM or VHDL Very high-speed integrated circuit Hardware Description Language
  • the program code may execute entirely on the user's computer, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server.
  • the remote computer may be connected to the user's computer through any type of network.
  • Code components may be embodied as procedures, methods or the like, and may comprise sub-components which may take the form of instructions or sequences of instructions at any of the levels of abstraction, from the direct machine instructions of a native instruction set to high-level compiled or interpreted language constructs.
  • a logical method may suitably be embodied in a logic apparatus comprising logic elements to perform the steps of the method, and that such logic elements may comprise components such as logic gates in, for example a programmable logic array or application-specific integrated circuit.
  • Such a logic arrangement may further be embodied in enabling elements for temporarily or permanently establishing logic structures in such an array or circuit using, for example, a virtual hardware descriptor language, which may be stored and transmitted using fixed or transmittable carrier media.
  • processor any functional block labeled as a "processor”
  • functions of the various elements shown in the figures may be provided through the use of dedicated hardware as well as hardware capable of executing software in association with appropriate software.
  • the functions may be provided by a single dedicated processor, by a single shared processor, or by a plurality of individual processors, some of which may be shared.
  • processor or “controller” should not be construed to refer exclusively to hardware capable of executing software, and may implicitly include, without limitation, digital signal processor (DSP) hardware, network processor, application specific integrated circuit (ASIC), field programmable gate array (FPGA), read-only memory (ROM) for storing software, random access memory (RAM), and non-volatile storage.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • ROM read-only memory
  • RAM random access memory
  • non-volatile storage Other hardware, conventional and/or custom, may also be included.

Abstract

La présente divulgation concerne un procédé, mis en œuvre par ordinateur, de modulation de la consommation d'énergie par un système d'approvisionnement en eau installé dans un bâtiment, le système d'approvisionnement en eau comprenant un ou plusieurs éléments chauffants électriques pouvant fonctionner pour chauffer l'eau, une pompe à chaleur conçue pour transférer l'énergie thermique depuis l'extérieur du bâtiment vers un moyen de stockage d'énergie thermique à l'intérieur du bâtiment et un module de commande conçu pour commander le fonctionnement du système d'approvisionnement en eau, le système d'approvisionnement en eau étant conçu pour fournir de l'eau chauffée par le ou les éléments chauffants électriques et/ou par le moyen de stockage d'énergie thermique à une ou plusieurs sorties d'eau, le procédé étant mis en œuvre par le module de commande et consistant à : déterminer un niveau de demandes d'énergie d'une région géographique comprenant le bâtiment ; et lors de la détermination que le niveau de demandes d'énergie est élevé, amener le système d'approvisionnement en eau à passer de l'utilisation du ou des éléments chauffants électriques au moyen de stockage d'énergie thermique pour l'approvisionnement en eau chauffée.
PCT/IB2022/051070 2021-02-07 2022-02-07 Procédés et systèmes de modulation de l'utilisation d'énergie WO2022168039A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CN202280023174.2A CN117063039A (zh) 2021-02-07 2022-02-07 用于调节能量使用的方法和系统
JP2023547266A JP2024508646A (ja) 2021-02-07 2022-02-07 ユーティリティ消費を管理するための方法及びシステム
US18/263,185 US20240085061A1 (en) 2021-02-07 2022-02-07 Methods and systems for modulating energy usage
EP22709024.8A EP4288736A1 (fr) 2021-02-07 2022-02-07 Procédés et systèmes de modulation de l'utilisation d'énergie
AU2022215953A AU2022215953A1 (en) 2021-02-07 2022-02-07 Methods and systems for modulating energy usage
KR1020237028229A KR20230154007A (ko) 2021-02-07 2022-02-07 에너지 사용량을 조절하기 위한 방법들 및 시스템들

Applications Claiming Priority (18)

Application Number Priority Date Filing Date Title
GBGB2101678.7A GB202101678D0 (en) 2021-02-07 2021-02-07 Methods and systems and apparatus to support reduced energy and water usage
GB2101678.7 2021-02-07
GB2109599.7A GB2603553B (en) 2021-02-07 2021-07-02 Energy storage arrangement and installations
GB2109599.7 2021-07-02
GB2109598.9 2021-07-02
GB2109596.3A GB2603550B (en) 2021-02-07 2021-07-02 Energy storage arrangement and installations
GB2109594.8 2021-07-02
GB2109597.1A GB2603551B (en) 2021-02-07 2021-07-02 Energy storage arrangements and installations including such energy storage arrangements
GB2109594.8A GB2604668B (en) 2021-02-07 2021-07-02 Methods and systems and apparatus to support reduced energy and water usage
GB2109600.3 2021-07-02
GB2109597.1 2021-07-02
GB2109593.0 2021-07-02
GB2109600.3A GB2603824B (en) 2021-02-07 2021-07-02 Methods and systems and apparatus to support reduced energy and water usage
GB2109593.0A GB2603976B (en) 2021-02-07 2021-07-02 Methods of configuring and controlling hot water supply installations
GB2109598.9A GB2603552B (en) 2021-02-07 2021-07-02 Energy storage arrangements and installations
GB2109596.3 2021-07-02
GB2111077.0A GB2609902B (en) 2021-02-07 2021-08-02 Methods and systems for modulating energy usage
GB2111077.0 2021-08-02

Publications (1)

Publication Number Publication Date
WO2022168039A1 true WO2022168039A1 (fr) 2022-08-11

Family

ID=80683951

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2022/051070 WO2022168039A1 (fr) 2021-02-07 2022-02-07 Procédés et systèmes de modulation de l'utilisation d'énergie

Country Status (1)

Country Link
WO (1) WO2022168039A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120060771A1 (en) * 2010-10-06 2012-03-15 General Electric Company Hot water heater scheduler
US20120232706A1 (en) * 2010-11-10 2012-09-13 Panasonic Corporation Operation planning method, operation planning device, heat pump hot water supply system operation method, and heat pump hot water supply and heating system operation method
US20130284818A1 (en) * 2011-08-24 2013-10-31 Panasonic Corporation Heating system control method and heating system
EP2799784A2 (fr) * 2013-04-25 2014-11-05 Panasonic Corporation Appareil de contrôle pour une pompe à chaleur, pompe à chaleur et méthode de contrôle d'une pompe à chaleur

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120060771A1 (en) * 2010-10-06 2012-03-15 General Electric Company Hot water heater scheduler
US20120232706A1 (en) * 2010-11-10 2012-09-13 Panasonic Corporation Operation planning method, operation planning device, heat pump hot water supply system operation method, and heat pump hot water supply and heating system operation method
US20130284818A1 (en) * 2011-08-24 2013-10-31 Panasonic Corporation Heating system control method and heating system
EP2799784A2 (fr) * 2013-04-25 2014-11-05 Panasonic Corporation Appareil de contrôle pour une pompe à chaleur, pompe à chaleur et méthode de contrôle d'une pompe à chaleur

Similar Documents

Publication Publication Date Title
GB2609902A (en) Methods and systems for modulating energy usage
WO2022168044A1 (fr) Procédés et systèmes de modulation de l'utilisation de l'énergie
US20240085061A1 (en) Methods and systems for modulating energy usage
US20240035706A1 (en) Methods and systems for modulating energy usage
WO2022168039A1 (fr) Procédés et systèmes de modulation de l'utilisation d'énergie
US20240044518A1 (en) Methods and systems for modulating energy usage
US20240093908A1 (en) Methods and systems for modulating energy usage
WO2022168042A1 (fr) Procédés et systèmes de fourniture prédictive d'eau chauffée
WO2022168035A1 (fr) Procédés et systèmes de modulation de l'utilisation d'énergie
WO2022168036A1 (fr) Procédés et systèmes de modulation de l'utilisation d'énergie
CN117501049A (zh) 用于调节能量使用的方法和系统
WO2022168030A1 (fr) Réduction temporaire de flux d'eau/d'énergie
EP4288720A1 (fr) Réduction temporaire de flux d'eau/d'énergie
CN117063039A (zh) 用于调节能量使用的方法和系统
CN117157490A (zh) 用于调节能源使用的方法和系统
US20240044521A1 (en) Methods and systems for predictively preparing water provision system
US20240093907A1 (en) Methods and systems for predictive heated water provision
US20240102671A1 (en) Methods and systems for performing a heat pump defrost cycle
US20240085060A1 (en) Modulating energy usage based on a current tariff in a water provision system
US20240093885A1 (en) Reduced temperature water supply mode in a water provision system
WO2022168045A1 (fr) Procédés et systèmes de préparation prédictive d'un système de fourniture d'eau

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22709024

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 18263185

Country of ref document: US

WWE Wipo information: entry into national phase

Ref document number: 2023547266

Country of ref document: JP

WWE Wipo information: entry into national phase

Ref document number: 803217

Country of ref document: NZ

Ref document number: 2022215953

Country of ref document: AU

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2022709024

Country of ref document: EP

Effective date: 20230907

ENP Entry into the national phase

Ref document number: 2022215953

Country of ref document: AU

Date of ref document: 20220207

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 202280023174.2

Country of ref document: CN